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/*
* Window messaging support
*
* Copyright 2001 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdarg.h>
#include "ntstatus.h"
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "winnls.h"
#include "dde.h"
#include "wine/unicode.h"
#include "wine/server.h"
#include "user_private.h"
#include "win.h"
#include "winpos.h"
#include "controls.h"
#include "winproc.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msg);
WINE_DECLARE_DEBUG_CHANNEL(relay);
WINE_DECLARE_DEBUG_CHANNEL(key);
#define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
#define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
#define MAX_PACK_COUNT 4
#define MAX_SENDMSG_RECURSION 64
#define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
/* description of the data fields that need to be packed along with a sent message */
struct packed_message
{
int count;
const void *data[MAX_PACK_COUNT];
size_t size[MAX_PACK_COUNT];
};
/* info about the message currently being received by the current thread */
struct received_message_info
{
enum message_type type;
MSG msg;
UINT flags; /* InSendMessageEx return flags */
HWINEVENTHOOK hook; /* winevent hook handle */
WINEVENTPROC hook_proc; /* winevent hook proc address */
};
/* structure to group all parameters for sent messages of the various kinds */
struct send_message_info
{
enum message_type type;
HWND hwnd;
UINT msg;
WPARAM wparam;
LPARAM lparam;
UINT flags; /* flags for SendMessageTimeout */
UINT timeout; /* timeout for SendMessageTimeout */
SENDASYNCPROC callback; /* callback function for SendMessageCallback */
ULONG_PTR data; /* callback data */
};
/* flag for messages that contain pointers */
/* 32 messages per entry, messages 0..31 map to bits 0..31 */
#define SET(msg) (1 << ((msg) & 31))
static const unsigned int message_pointer_flags[] =
{
/* 0x00 - 0x1f */
SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
/* 0x20 - 0x3f */
SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
SET(WM_COMPAREITEM),
/* 0x40 - 0x5f */
SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
SET(WM_NOTIFY) | SET(WM_HELP),
/* 0x60 - 0x7f */
SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
/* 0x80 - 0x9f */
SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
/* 0xa0 - 0xbf */
SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
/* 0xc0 - 0xdf */
SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
/* 0xe0 - 0xff */
SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
/* 0x100 - 0x11f */
0,
/* 0x120 - 0x13f */
0,
/* 0x140 - 0x15f */
SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
/* 0x160 - 0x17f */
0,
/* 0x180 - 0x19f */
SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
SET(LB_DIR) | SET(LB_FINDSTRING) |
SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
/* 0x1a0 - 0x1bf */
SET(LB_FINDSTRINGEXACT),
/* 0x1c0 - 0x1df */
0,
/* 0x1e0 - 0x1ff */
0,
/* 0x200 - 0x21f */
SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
/* 0x220 - 0x23f */
SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
/* 0x240 - 0x25f */
0,
/* 0x260 - 0x27f */
0,
/* 0x280 - 0x29f */
0,
/* 0x2a0 - 0x2bf */
0,
/* 0x2c0 - 0x2df */
0,
/* 0x2e0 - 0x2ff */
0,
/* 0x300 - 0x31f */
SET(WM_ASKCBFORMATNAME)
};
/* flags for messages that contain Unicode strings */
static const unsigned int message_unicode_flags[] =
{
/* 0x00 - 0x1f */
SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
/* 0x20 - 0x3f */
SET(WM_CHARTOITEM),
/* 0x40 - 0x5f */
0,
/* 0x60 - 0x7f */
0,
/* 0x80 - 0x9f */
SET(WM_NCCREATE),
/* 0xa0 - 0xbf */
0,
/* 0xc0 - 0xdf */
SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
/* 0xe0 - 0xff */
0,
/* 0x100 - 0x11f */
SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
/* 0x120 - 0x13f */
SET(WM_MENUCHAR),
/* 0x140 - 0x15f */
SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
/* 0x160 - 0x17f */
0,
/* 0x180 - 0x19f */
SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
/* 0x1a0 - 0x1bf */
SET(LB_FINDSTRINGEXACT),
/* 0x1c0 - 0x1df */
0,
/* 0x1e0 - 0x1ff */
0,
/* 0x200 - 0x21f */
0,
/* 0x220 - 0x23f */
SET(WM_MDICREATE),
/* 0x240 - 0x25f */
0,
/* 0x260 - 0x27f */
0,
/* 0x280 - 0x29f */
SET(WM_IME_CHAR),
/* 0x2a0 - 0x2bf */
0,
/* 0x2c0 - 0x2df */
0,
/* 0x2e0 - 0x2ff */
0,
/* 0x300 - 0x31f */
SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
};
/* check whether a given message type includes pointers */
inline static int is_pointer_message( UINT message )
{
if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
return (message_pointer_flags[message / 32] & SET(message)) != 0;
}
/* check whether a given message type contains Unicode (or ASCII) chars */
inline static int is_unicode_message( UINT message )
{
if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
return (message_unicode_flags[message / 32] & SET(message)) != 0;
}
#undef SET
/* add a data field to a packed message */
inline static void push_data( struct packed_message *data, const void *ptr, size_t size )
{
data->data[data->count] = ptr;
data->size[data->count] = size;
data->count++;
}
/* add a string to a packed message */
inline static void push_string( struct packed_message *data, LPCWSTR str )
{
push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
}
/* retrieve a pointer to data from a packed message and increment the buffer pointer */
inline static void *get_data( void **buffer, size_t size )
{
void *ret = *buffer;
*buffer = (char *)*buffer + size;
return ret;
}
/* make sure that the buffer contains a valid null-terminated Unicode string */
inline static BOOL check_string( LPCWSTR str, size_t size )
{
for (size /= sizeof(WCHAR); size; size--, str++)
if (!*str) return TRUE;
return FALSE;
}
/* make sure that there is space for 'size' bytes in buffer, growing it if needed */
inline static void *get_buffer_space( void **buffer, size_t size )
{
void *ret;
if (*buffer)
{
if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
HeapFree( GetProcessHeap(), 0, *buffer );
}
else ret = HeapAlloc( GetProcessHeap(), 0, size );
*buffer = ret;
return ret;
}
/* retrieve a string pointer from packed data */
inline static LPWSTR get_string( void **buffer )
{
return get_data( buffer, (strlenW( (LPWSTR)*buffer ) + 1) * sizeof(WCHAR) );
}
/* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
inline static BOOL combobox_has_strings( HWND hwnd )
{
DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
}
/* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
inline static BOOL listbox_has_strings( HWND hwnd )
{
DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
}
/* check whether message is in the range of keyboard messages */
inline static BOOL is_keyboard_message( UINT message )
{
return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
}
/* check whether message is in the range of mouse messages */
inline static BOOL is_mouse_message( UINT message )
{
return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
(message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
}
/* check whether message matches the specified hwnd filter */
inline static BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
{
if (!hwnd_filter) return TRUE;
return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
}
/***********************************************************************
* broadcast_message_callback
*
* Helper callback for broadcasting messages.
*/
static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
{
struct send_message_info *info = (struct send_message_info *)lparam;
if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
switch(info->type)
{
case MSG_UNICODE:
SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
info->flags, info->timeout, NULL );
break;
case MSG_ASCII:
SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
info->flags, info->timeout, NULL );
break;
case MSG_NOTIFY:
SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
break;
case MSG_CALLBACK:
SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
info->callback, info->data );
break;
case MSG_POSTED:
PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
break;
default:
ERR( "bad type %d\n", info->type );
break;
}
return TRUE;
}
/***********************************************************************
* map_wparam_AtoW
*
* Convert the wparam of an ASCII message to Unicode.
*/
static WPARAM map_wparam_AtoW( UINT message, WPARAM wparam )
{
switch(message)
{
case WM_CHARTOITEM:
case EM_SETPASSWORDCHAR:
case WM_CHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
case WM_MENUCHAR:
{
char ch = LOWORD(wparam);
WCHAR wch;
MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
wparam = MAKEWPARAM( wch, HIWORD(wparam) );
}
break;
case WM_IME_CHAR:
{
char ch[2];
WCHAR wch;
ch[0] = (wparam >> 8);
ch[1] = (wparam & 0xff);
if (ch[0]) MultiByteToWideChar(CP_ACP, 0, ch, 2, &wch, 1);
else MultiByteToWideChar(CP_ACP, 0, &ch[1], 1, &wch, 1);
wparam = MAKEWPARAM( wch, HIWORD(wparam) );
}
break;
}
return wparam;
}
/***********************************************************************
* map_wparam_WtoA
*
* Convert the wparam of a Unicode message to ASCII.
*/
static WPARAM map_wparam_WtoA( UINT message, WPARAM wparam )
{
switch(message)
{
case WM_CHARTOITEM:
case EM_SETPASSWORDCHAR:
case WM_CHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
case WM_MENUCHAR:
{
WCHAR wch = LOWORD(wparam);
BYTE ch;
WideCharToMultiByte( CP_ACP, 0, &wch, 1, &ch, 1, NULL, NULL );
wparam = MAKEWPARAM( ch, HIWORD(wparam) );
}
break;
case WM_IME_CHAR:
{
WCHAR wch = LOWORD(wparam);
BYTE ch[2];
if (WideCharToMultiByte( CP_ACP, 0, &wch, 1, ch, 2, NULL, NULL ) == 2)
wparam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(wparam) );
else
wparam = MAKEWPARAM( ch[0], HIWORD(wparam) );
}
break;
}
return wparam;
}
/***********************************************************************
* pack_message
*
* Pack a message for sending to another process.
* Return the size of the data we expect in the message reply.
* Set data->count to -1 if there is an error.
*/
static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
struct packed_message *data )
{
data->count = 0;
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
{
CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
push_data( data, cs, sizeof(*cs) );
if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
return sizeof(*cs);
}
case WM_GETTEXT:
case WM_ASKCBFORMATNAME:
return wparam * sizeof(WCHAR);
case WM_WININICHANGE:
if (lparam) push_string(data, (LPWSTR)lparam );
return 0;
case WM_SETTEXT:
case WM_DEVMODECHANGE:
case CB_DIR:
case LB_DIR:
case LB_ADDFILE:
case EM_REPLACESEL:
push_string( data, (LPWSTR)lparam );
return 0;
case WM_GETMINMAXINFO:
push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
return sizeof(MINMAXINFO);
case WM_DRAWITEM:
push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
return 0;
case WM_MEASUREITEM:
push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
return sizeof(MEASUREITEMSTRUCT);
case WM_DELETEITEM:
push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
return 0;
case WM_COMPAREITEM:
push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
return 0;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
return sizeof(WINDOWPOS);
case WM_COPYDATA:
{
COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
push_data( data, cp, sizeof(*cp) );
if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
return 0;
}
case WM_NOTIFY:
/* WM_NOTIFY cannot be sent across processes (MSDN) */
data->count = -1;
return 0;
case WM_HELP:
push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
return 0;
case WM_STYLECHANGING:
case WM_STYLECHANGED:
push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
return 0;
case WM_NCCALCSIZE:
if (!wparam)
{
push_data( data, (RECT *)lparam, sizeof(RECT) );
return sizeof(RECT);
}
else
{
NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
push_data( data, nc, sizeof(*nc) );
push_data( data, nc->lppos, sizeof(*nc->lppos) );
return sizeof(*nc) + sizeof(*nc->lppos);
}
case WM_GETDLGCODE:
if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
return sizeof(MSG);
case SBM_SETSCROLLINFO:
push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
return 0;
case SBM_GETSCROLLINFO:
push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
return sizeof(SCROLLINFO);
case SBM_GETSCROLLBARINFO:
{
const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
push_data( data, info, size );
return size;
}
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
{
size_t size = 0;
if (wparam) size += sizeof(DWORD);
if (lparam) size += sizeof(DWORD);
return size;
}
case EM_GETRECT:
case LB_GETITEMRECT:
case CB_GETDROPPEDCONTROLRECT:
return sizeof(RECT);
case EM_SETRECT:
case EM_SETRECTNP:
push_data( data, (RECT *)lparam, sizeof(RECT) );
return 0;
case EM_GETLINE:
{
WORD *pw = (WORD *)lparam;
push_data( data, pw, sizeof(*pw) );
return *pw * sizeof(WCHAR);
}
case EM_SETTABSTOPS:
case LB_SETTABSTOPS:
if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
return 0;
case CB_ADDSTRING:
case CB_INSERTSTRING:
case CB_FINDSTRING:
case CB_FINDSTRINGEXACT:
case CB_SELECTSTRING:
if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
return 0;
case CB_GETLBTEXT:
if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
case LB_ADDSTRING:
case LB_INSERTSTRING:
case LB_FINDSTRING:
case LB_FINDSTRINGEXACT:
case LB_SELECTSTRING:
if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
return 0;
case LB_GETTEXT:
if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
case LB_GETSELITEMS:
return wparam * sizeof(UINT);
case WM_NEXTMENU:
push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
return sizeof(MDINEXTMENU);
case WM_SIZING:
case WM_MOVING:
push_data( data, (RECT *)lparam, sizeof(RECT) );
return sizeof(RECT);
case WM_MDICREATE:
{
MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
push_data( data, cs, sizeof(*cs) );
if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
return sizeof(*cs);
}
case WM_MDIGETACTIVE:
if (lparam) return sizeof(BOOL);
return 0;
case WM_WINE_SETWINDOWPOS:
push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
return 0;
case WM_WINE_KEYBOARD_LL_HOOK:
push_data( data, (KBDLLHOOKSTRUCT *)lparam, sizeof(KBDLLHOOKSTRUCT) );
return 0;
case WM_WINE_MOUSE_LL_HOOK:
push_data( data, (MSLLHOOKSTRUCT *)lparam, sizeof(MSLLHOOKSTRUCT) );
return 0;
case WM_PAINT:
if (!wparam) return 0;
/* fall through */
/* these contain an HFONT */
case WM_SETFONT:
case WM_GETFONT:
/* these contain an HDC */
case WM_ERASEBKGND:
case WM_ICONERASEBKGND:
case WM_NCPAINT:
case WM_CTLCOLORMSGBOX:
case WM_CTLCOLOREDIT:
case WM_CTLCOLORLISTBOX:
case WM_CTLCOLORBTN:
case WM_CTLCOLORDLG:
case WM_CTLCOLORSCROLLBAR:
case WM_CTLCOLORSTATIC:
case WM_PRINT:
case WM_PRINTCLIENT:
/* these contain an HGLOBAL */
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
/* these contain HICON */
case WM_GETICON:
case WM_SETICON:
case WM_QUERYDRAGICON:
case WM_QUERYPARKICON:
/* these contain pointers */
case WM_DROPOBJECT:
case WM_QUERYDROPOBJECT:
case WM_DRAGLOOP:
case WM_DRAGSELECT:
case WM_DRAGMOVE:
case WM_DEVICECHANGE:
FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
data->count = -1;
return 0;
}
return 0;
}
/***********************************************************************
* unpack_message
*
* Unpack a message received from another process.
*/
static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
void **buffer, size_t size )
{
size_t minsize = 0;
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
{
CREATESTRUCTW *cs = *buffer;
WCHAR *str = (WCHAR *)(cs + 1);
if (size < sizeof(*cs)) return FALSE;
size -= sizeof(*cs);
if (HIWORD(cs->lpszName))
{
if (!check_string( str, size )) return FALSE;
cs->lpszName = str;
size -= (strlenW(str) + 1) * sizeof(WCHAR);
str += strlenW(str) + 1;
}
if (HIWORD(cs->lpszClass))
{
if (!check_string( str, size )) return FALSE;
cs->lpszClass = str;
}
break;
}
case WM_GETTEXT:
case WM_ASKCBFORMATNAME:
if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
break;
case WM_WININICHANGE:
if (!*lparam) return TRUE;
/* fall through */
case WM_SETTEXT:
case WM_DEVMODECHANGE:
case CB_DIR:
case LB_DIR:
case LB_ADDFILE:
case EM_REPLACESEL:
if (!check_string( *buffer, size )) return FALSE;
break;
case WM_GETMINMAXINFO:
minsize = sizeof(MINMAXINFO);
break;
case WM_DRAWITEM:
minsize = sizeof(DRAWITEMSTRUCT);
break;
case WM_MEASUREITEM:
minsize = sizeof(MEASUREITEMSTRUCT);
break;
case WM_DELETEITEM:
minsize = sizeof(DELETEITEMSTRUCT);
break;
case WM_COMPAREITEM:
minsize = sizeof(COMPAREITEMSTRUCT);
break;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
case WM_WINE_SETWINDOWPOS:
minsize = sizeof(WINDOWPOS);
break;
case WM_COPYDATA:
{
COPYDATASTRUCT *cp = *buffer;
if (size < sizeof(*cp)) return FALSE;
if (cp->lpData)
{
minsize = sizeof(*cp) + cp->cbData;
cp->lpData = cp + 1;
}
break;
}
case WM_NOTIFY:
/* WM_NOTIFY cannot be sent across processes (MSDN) */
return FALSE;
case WM_HELP:
minsize = sizeof(HELPINFO);
break;
case WM_STYLECHANGING:
case WM_STYLECHANGED:
minsize = sizeof(STYLESTRUCT);
break;
case WM_NCCALCSIZE:
if (!*wparam) minsize = sizeof(RECT);
else
{
NCCALCSIZE_PARAMS *nc = *buffer;
if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
nc->lppos = (WINDOWPOS *)(nc + 1);
}
break;
case WM_GETDLGCODE:
if (!*lparam) return TRUE;
minsize = sizeof(MSG);
break;
case SBM_SETSCROLLINFO:
minsize = sizeof(SCROLLINFO);
break;
case SBM_GETSCROLLINFO:
if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
break;
case SBM_GETSCROLLBARINFO:
if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
break;
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
if (*wparam || *lparam)
{
if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
if (*wparam) *wparam = (WPARAM)*buffer;
if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
}
return TRUE;
case EM_GETRECT:
case LB_GETITEMRECT:
case CB_GETDROPPEDCONTROLRECT:
if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
break;
case EM_SETRECT:
case EM_SETRECTNP:
minsize = sizeof(RECT);
break;
case EM_GETLINE:
{
WORD len;
if (size < sizeof(WORD)) return FALSE;
len = *(WORD *)*buffer;
if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
*lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
return TRUE;
}
case EM_SETTABSTOPS:
case LB_SETTABSTOPS:
if (!*wparam) return TRUE;
minsize = *wparam * sizeof(UINT);
break;
case CB_ADDSTRING:
case CB_INSERTSTRING:
case CB_FINDSTRING:
case CB_FINDSTRINGEXACT:
case CB_SELECTSTRING:
case LB_ADDSTRING:
case LB_INSERTSTRING:
case LB_FINDSTRING:
case LB_FINDSTRINGEXACT:
case LB_SELECTSTRING:
if (!*buffer) return TRUE;
if (!check_string( *buffer, size )) return FALSE;
break;
case CB_GETLBTEXT:
{
size = sizeof(ULONG_PTR);
if (combobox_has_strings( hwnd ))
size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
if (!get_buffer_space( buffer, size )) return FALSE;
break;
}
case LB_GETTEXT:
{
size = sizeof(ULONG_PTR);
if (listbox_has_strings( hwnd ))
size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
if (!get_buffer_space( buffer, size )) return FALSE;
break;
}
case LB_GETSELITEMS:
if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
break;
case WM_NEXTMENU:
minsize = sizeof(MDINEXTMENU);
if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
break;
case WM_SIZING:
case WM_MOVING:
minsize = sizeof(RECT);
if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
break;
case WM_MDICREATE:
{
MDICREATESTRUCTW *cs = *buffer;
WCHAR *str = (WCHAR *)(cs + 1);
if (size < sizeof(*cs)) return FALSE;
size -= sizeof(*cs);
if (HIWORD(cs->szTitle))
{
if (!check_string( str, size )) return FALSE;
cs->szTitle = str;
size -= (strlenW(str) + 1) * sizeof(WCHAR);
str += strlenW(str) + 1;
}
if (HIWORD(cs->szClass))
{
if (!check_string( str, size )) return FALSE;
cs->szClass = str;
}
break;
}
case WM_MDIGETACTIVE:
if (!*lparam) return TRUE;
if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
break;
case WM_WINE_KEYBOARD_LL_HOOK:
minsize = sizeof(KBDLLHOOKSTRUCT);
break;
case WM_WINE_MOUSE_LL_HOOK:
minsize = sizeof(MSLLHOOKSTRUCT);
break;
case WM_PAINT:
if (!*wparam) return TRUE;
/* fall through */
/* these contain an HFONT */
case WM_SETFONT:
case WM_GETFONT:
/* these contain an HDC */
case WM_ERASEBKGND:
case WM_ICONERASEBKGND:
case WM_NCPAINT:
case WM_CTLCOLORMSGBOX:
case WM_CTLCOLOREDIT:
case WM_CTLCOLORLISTBOX:
case WM_CTLCOLORBTN:
case WM_CTLCOLORDLG:
case WM_CTLCOLORSCROLLBAR:
case WM_CTLCOLORSTATIC:
case WM_PRINT:
case WM_PRINTCLIENT:
/* these contain an HGLOBAL */
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
/* these contain HICON */
case WM_GETICON:
case WM_SETICON:
case WM_QUERYDRAGICON:
case WM_QUERYPARKICON:
/* these contain pointers */
case WM_DROPOBJECT:
case WM_QUERYDROPOBJECT:
case WM_DRAGLOOP:
case WM_DRAGSELECT:
case WM_DRAGMOVE:
case WM_DEVICECHANGE:
FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
return FALSE;
default:
return TRUE; /* message doesn't need any unpacking */
}
/* default exit for most messages: check minsize and store buffer in lparam */
if (size < minsize) return FALSE;
*lparam = (LPARAM)*buffer;
return TRUE;
}
/***********************************************************************
* pack_reply
*
* Pack a reply to a message for sending to another process.
*/
static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
LRESULT res, struct packed_message *data )
{
data->count = 0;
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
break;
case WM_GETTEXT:
case CB_GETLBTEXT:
case LB_GETTEXT:
push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
break;
case WM_GETMINMAXINFO:
push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
break;
case WM_MEASUREITEM:
push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
break;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
break;
case WM_GETDLGCODE:
if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
break;
case SBM_GETSCROLLINFO:
push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
break;
case EM_GETRECT:
case LB_GETITEMRECT:
case CB_GETDROPPEDCONTROLRECT:
case WM_SIZING:
case WM_MOVING:
push_data( data, (RECT *)lparam, sizeof(RECT) );
break;
case EM_GETLINE:
{
WORD *ptr = (WORD *)lparam;
push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
break;
}
case LB_GETSELITEMS:
push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
break;
case WM_MDIGETACTIVE:
if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
break;
case WM_NCCALCSIZE:
if (!wparam)
push_data( data, (RECT *)lparam, sizeof(RECT) );
else
{
NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
push_data( data, nc, sizeof(*nc) );
push_data( data, nc->lppos, sizeof(*nc->lppos) );
}
break;
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
break;
case WM_NEXTMENU:
push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
break;
case WM_MDICREATE:
push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
break;
case WM_ASKCBFORMATNAME:
push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
break;
}
}
/***********************************************************************
* unpack_reply
*
* Unpack a message reply received from another process.
*/
static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
void *buffer, size_t size )
{
switch(message)
{
case WM_NCCREATE:
case WM_CREATE:
{
CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
LPCWSTR name = cs->lpszName, class = cs->lpszClass;
memcpy( cs, buffer, min( sizeof(*cs), size ));
cs->lpszName = name; /* restore the original pointers */
cs->lpszClass = class;
break;
}
case WM_GETTEXT:
case WM_ASKCBFORMATNAME:
memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
break;
case WM_GETMINMAXINFO:
memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
break;
case WM_MEASUREITEM:
memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
break;
case WM_WINDOWPOSCHANGING:
case WM_WINDOWPOSCHANGED:
memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
break;
case WM_GETDLGCODE:
if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
break;
case SBM_GETSCROLLINFO:
memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
break;
case SBM_GETSCROLLBARINFO:
memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
break;
case EM_GETRECT:
case CB_GETDROPPEDCONTROLRECT:
case LB_GETITEMRECT:
case WM_SIZING:
case WM_MOVING:
memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
break;
case EM_GETLINE:
size = min( size, (size_t)*(WORD *)lparam );
memcpy( (WCHAR *)lparam, buffer, size );
break;
case LB_GETSELITEMS:
memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
break;
case LB_GETTEXT:
case CB_GETLBTEXT:
memcpy( (WCHAR *)lparam, buffer, size );
break;
case WM_NEXTMENU:
memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
break;
case WM_MDIGETACTIVE:
if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
break;
case WM_NCCALCSIZE:
if (!wparam)
memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
else
{
NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
WINDOWPOS *wp = nc->lppos;
memcpy( nc, buffer, min( sizeof(*nc), size ));
if (size > sizeof(*nc))
{
size -= sizeof(*nc);
memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
}
nc->lppos = wp; /* restore the original pointer */
}
break;
case EM_GETSEL:
case SBM_GETRANGE:
case CB_GETEDITSEL:
if (wparam)
{
memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
if (size <= sizeof(DWORD)) break;
size -= sizeof(DWORD);
buffer = (DWORD *)buffer + 1;
}
if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
break;
case WM_MDICREATE:
{
MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
LPCWSTR title = cs->szTitle, class = cs->szClass;
memcpy( cs, buffer, min( sizeof(*cs), size ));
cs->szTitle = title; /* restore the original pointers */
cs->szClass = class;
break;
}
default:
ERR( "should not happen: unexpected message %x\n", message );
break;
}
}
/***********************************************************************
* reply_message
*
* Send a reply to a sent message.
*/
static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
{
struct packed_message data;
int i, replied = info->flags & ISMEX_REPLIED;
if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
if (!remove && replied) return; /* replied already */
data.count = 0;
info->flags |= ISMEX_REPLIED;
if (info->type == MSG_OTHER_PROCESS && !replied)
{
pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
info->msg.lParam, result, &data );
}
SERVER_START_REQ( reply_message )
{
req->result = result;
req->remove = remove;
for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
wine_server_call( req );
}
SERVER_END_REQ;
}
/***********************************************************************
* handle_internal_message
*
* Handle an internal Wine message instead of calling the window proc.
*/
static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
if (hwnd == GetDesktopWindow()) return 0;
switch(msg)
{
case WM_WINE_DESTROYWINDOW:
return WIN_DestroyWindow( hwnd );
case WM_WINE_SETWINDOWPOS:
if (USER_Driver.pSetWindowPos)
return USER_Driver.pSetWindowPos( (WINDOWPOS *)lparam );
return 0;
case WM_WINE_SHOWWINDOW:
return ShowWindow( hwnd, wparam );
case WM_WINE_SETPARENT:
return (LRESULT)SetParent( hwnd, (HWND)wparam );
case WM_WINE_SETWINDOWLONG:
return (LRESULT)SetWindowLongW( hwnd, wparam, lparam );
case WM_WINE_ENABLEWINDOW:
return EnableWindow( hwnd, wparam );
case WM_WINE_SETACTIVEWINDOW:
return (LRESULT)SetActiveWindow( (HWND)wparam );
case WM_WINE_KEYBOARD_LL_HOOK:
return HOOK_CallHooks( WH_KEYBOARD_LL, HC_ACTION, wparam, lparam, TRUE );
case WM_WINE_MOUSE_LL_HOOK:
return HOOK_CallHooks( WH_MOUSE_LL, HC_ACTION, wparam, lparam, TRUE );
default:
if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
{
if (!USER_Driver.pWindowMessage) return 0;
return USER_Driver.pWindowMessage( hwnd, msg, wparam, lparam );
}
FIXME( "unknown internal message %x\n", msg );
return 0;
}
}
/* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
* to the memory handle, we keep track (in the server side) of all pairs of handle
* used (the client passes its value and the content of the memory handle), and
* the server stored both values (the client, and the local one, created after the
* content). When a ACK message is generated, the list of pair is searched for a
* matching pair, so that the client memory handle can be returned.
*/
struct DDE_pair {
HGLOBAL client_hMem;
HGLOBAL server_hMem;
};
static struct DDE_pair* dde_pairs;
static int dde_num_alloc;
static int dde_num_used;
static CRITICAL_SECTION dde_crst;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &dde_crst,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { 0, (DWORD)(__FILE__ ": dde_crst") }
};
static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
{
int i;
#define GROWBY 4
EnterCriticalSection(&dde_crst);
/* now remember the pair of hMem on both sides */
if (dde_num_used == dde_num_alloc)
{
struct DDE_pair* tmp;
if (dde_pairs)
tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
(dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
else
tmp = HeapAlloc( GetProcessHeap(), 0,
(dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
if (!tmp)
{
LeaveCriticalSection(&dde_crst);
return FALSE;
}
dde_pairs = tmp;
/* zero out newly allocated part */
memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
dde_num_alloc += GROWBY;
}
#undef GROWBY
for (i = 0; i < dde_num_alloc; i++)
{
if (dde_pairs[i].server_hMem == 0)
{
dde_pairs[i].client_hMem = chm;
dde_pairs[i].server_hMem = shm;
dde_num_used++;
break;
}
}
LeaveCriticalSection(&dde_crst);
return TRUE;
}
static HGLOBAL dde_get_pair(HGLOBAL shm)
{
int i;
HGLOBAL ret = 0;
EnterCriticalSection(&dde_crst);
for (i = 0; i < dde_num_alloc; i++)
{
if (dde_pairs[i].server_hMem == shm)
{
/* free this pair */
dde_pairs[i].server_hMem = 0;
dde_num_used--;
ret = dde_pairs[i].client_hMem;
break;
}
}
LeaveCriticalSection(&dde_crst);
return ret;
}
/***********************************************************************
* post_dde_message
*
* Post a DDE message
*/
static BOOL post_dde_message( DWORD dest_tid, struct packed_message *data, const struct send_message_info *info )
{
void* ptr = NULL;
int size = 0;
UINT uiLo, uiHi;
LPARAM lp = 0;
HGLOBAL hunlock = 0;
int i;
DWORD res;
if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
return FALSE;
lp = info->lparam;
switch (info->msg)
{
/* DDE messages which don't require packing are:
* WM_DDE_INITIATE
* WM_DDE_TERMINATE
* WM_DDE_REQUEST
* WM_DDE_UNADVISE
*/
case WM_DDE_ACK:
if (HIWORD(uiHi))
{
/* uiHi should contain a hMem from WM_DDE_EXECUTE */
HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
if (h)
{
/* send back the value of h on the other side */
push_data( data, &h, sizeof(HGLOBAL) );
lp = uiLo;
TRACE( "send dde-ack %x %08x => %08lx\n", uiLo, uiHi, (DWORD)h );
}
}
else
{
/* uiHi should contain either an atom or 0 */
TRACE( "send dde-ack %x atom=%x\n", uiLo, uiHi );
lp = MAKELONG( uiLo, uiHi );
}
break;
case WM_DDE_ADVISE:
case WM_DDE_DATA:
case WM_DDE_POKE:
size = 0;
if (uiLo)
{
size = GlobalSize( (HGLOBAL)uiLo ) ;
if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
(info->msg == WM_DDE_DATA && size < sizeof(DDEDATA)) ||
(info->msg == WM_DDE_POKE && size < sizeof(DDEPOKE))
)
return FALSE;
}
else if (info->msg != WM_DDE_DATA) return FALSE;
lp = uiHi;
if (uiLo)
{
if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
{
DDEDATA *dde_data = (DDEDATA *)ptr;
TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
dde_data->unused, dde_data->fResponse, dde_data->fRelease,
dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
push_data( data, ptr, size );
hunlock = (HGLOBAL)uiLo;
}
}
TRACE( "send ddepack %u %x\n", size, uiHi );
break;
case WM_DDE_EXECUTE:
if (info->lparam)
{
if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
{
push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
/* so that the other side can send it back on ACK */
lp = info->lparam;
hunlock = (HGLOBAL)info->lparam;
}
}
break;
}
SERVER_START_REQ( send_message )
{
req->id = dest_tid;
req->type = info->type;
req->flags = 0;
req->win = info->hwnd;
req->msg = info->msg;
req->wparam = info->wparam;
req->lparam = lp;
req->time = GetCurrentTime();
req->timeout = -1;
for (i = 0; i < data->count; i++)
wine_server_add_data( req, data->data[i], data->size[i] );
if ((res = wine_server_call( req )))
{
if (res == STATUS_INVALID_PARAMETER)
/* FIXME: find a STATUS_ value for this one */
SetLastError( ERROR_INVALID_THREAD_ID );
else
SetLastError( RtlNtStatusToDosError(res) );
}
else
FreeDDElParam(info->msg, info->lparam);
}
SERVER_END_REQ;
if (hunlock) GlobalUnlock(hunlock);
return !res;
}
/***********************************************************************
* unpack_dde_message
*
* Unpack a posted DDE message received from another process.
*/
static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
void **buffer, size_t size )
{
UINT uiLo, uiHi;
HGLOBAL hMem = 0;
void* ptr;
switch (message)
{
case WM_DDE_ACK:
if (size)
{
/* hMem is being passed */
if (size != sizeof(HGLOBAL)) return FALSE;
if (!buffer || !*buffer) return FALSE;
uiLo = *lparam;
memcpy( &hMem, *buffer, size );
uiHi = (UINT)hMem;
TRACE("recv dde-ack %x mem=%x[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
}
else
{
uiLo = LOWORD( *lparam );
uiHi = HIWORD( *lparam );
TRACE("recv dde-ack %x atom=%x\n", uiLo, uiHi);
}
*lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
break;
case WM_DDE_ADVISE:
case WM_DDE_DATA:
case WM_DDE_POKE:
if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
uiHi = *lparam;
TRACE( "recv ddepack %u %x\n", size, uiHi );
if (size)
{
if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
return FALSE;
if ((ptr = GlobalLock( hMem )))
{
memcpy( ptr, *buffer, size );
GlobalUnlock( hMem );
}
else
{
GlobalFree( hMem );
return FALSE;
}
}
uiLo = (UINT)hMem;
*lparam = PackDDElParam( message, uiLo, uiHi );
break;
case WM_DDE_EXECUTE:
if (size)
{
if (!buffer || !*buffer) return FALSE;
if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
if ((ptr = GlobalLock( hMem )))
{
memcpy( ptr, *buffer, size );
GlobalUnlock( hMem );
TRACE( "exec: pairing c=%08lx s=%08lx\n", *lparam, (DWORD)hMem );
if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
{
GlobalFree( hMem );
return FALSE;
}
}
else
{
GlobalFree( hMem );
return FALSE;
}
} else return FALSE;
*lparam = (LPARAM)hMem;
break;
}
return TRUE;
}
/***********************************************************************
* call_window_proc
*
* Call a window procedure and the corresponding hooks.
*/
static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
BOOL unicode, BOOL same_thread )
{
struct user_thread_info *thread_info = get_user_thread_info();
LRESULT result = 0;
WNDPROC winproc;
CWPSTRUCT cwp;
CWPRETSTRUCT cwpret;
if (thread_info->recursion_count > MAX_SENDMSG_RECURSION) return 0;
thread_info->recursion_count++;
if (msg & 0x80000000)
{
result = handle_internal_message( hwnd, msg, wparam, lparam );
goto done;
}
/* first the WH_CALLWNDPROC hook */
hwnd = WIN_GetFullHandle( hwnd );
cwp.lParam = lparam;
cwp.wParam = wparam;
cwp.message = msg;
cwp.hwnd = hwnd;
HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
/* now call the window procedure */
if (unicode)
{
if (!(winproc = (WNDPROC)GetWindowLongPtrW( hwnd, GWLP_WNDPROC ))) goto done;
result = CallWindowProcW( winproc, hwnd, msg, wparam, lparam );
}
else
{
if (!(winproc = (WNDPROC)GetWindowLongPtrA( hwnd, GWLP_WNDPROC ))) goto done;
result = CallWindowProcA( winproc, hwnd, msg, wparam, lparam );
}
/* and finally the WH_CALLWNDPROCRET hook */
cwpret.lResult = result;
cwpret.lParam = lparam;
cwpret.wParam = wparam;
cwpret.message = msg;
cwpret.hwnd = hwnd;
HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
done:
thread_info->recursion_count--;
return result;
}
/***********************************************************************
* send_parent_notify
*
* Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
* the window has the WS_EX_NOPARENTNOTIFY style.
*/
static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
{
/* pt has to be in the client coordinates of the parent window */
MapWindowPoints( 0, hwnd, &pt, 1 );
for (;;)
{
HWND parent;
if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
if (!(parent = GetParent(hwnd))) break;
MapWindowPoints( hwnd, parent, &pt, 1 );
hwnd = parent;
SendMessageW( hwnd, WM_PARENTNOTIFY,
MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
}
}
/***********************************************************************
* accept_hardware_message
*
* Tell the server we have passed the message to the app
* (even though we may end up dropping it later on)
*/
static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
{
SERVER_START_REQ( accept_hardware_message )
{
req->hw_id = hw_id;
req->remove = remove;
req->new_win = new_hwnd;
if (wine_server_call( req ))
FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
}
SERVER_END_REQ;
}
/***********************************************************************
* process_keyboard_message
*
* returns TRUE if the contents of 'msg' should be passed to the application
*/
static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
UINT first, UINT last, BOOL remove )
{
EVENTMSG event;
/* FIXME: is this really the right place for this hook? */
event.message = msg->message;
event.hwnd = msg->hwnd;
event.time = msg->time;
event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
event.paramH = msg->lParam & 0x7FFF;
if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
/* check message filters */
if (msg->message < first || msg->message > last) return FALSE;
if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
if (remove)
{
/* Handle F1 key by sending out WM_HELP message */
if ((msg->message == WM_KEYUP) &&
(msg->wParam == VK_F1) &&
(msg->hwnd != GetDesktopWindow()) &&
!MENU_IsMenuActive())
{
HELPINFO hi;
hi.cbSize = sizeof(HELPINFO);
hi.iContextType = HELPINFO_WINDOW;
hi.iCtrlId = GetWindowLongPtrA( msg->hwnd, GWLP_ID );
hi.hItemHandle = msg->hwnd;
hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
hi.MousePos = msg->pt;
SendMessageW( msg->hwnd, WM_HELP, 0, (LPARAM)&hi );
}
}
if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
LOWORD(msg->wParam), msg->lParam, TRUE ))
{
/* skip this message */
HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
accept_hardware_message( hw_id, TRUE, 0 );
return FALSE;
}
accept_hardware_message( hw_id, remove, 0 );
return TRUE;
}
/***********************************************************************
* process_mouse_message
*
* returns TRUE if the contents of 'msg' should be passed to the application
*/
static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
UINT first, UINT last, BOOL remove )
{
static MSG clk_msg;
POINT pt;
UINT message;
INT hittest;
EVENTMSG event;
GUITHREADINFO info;
MOUSEHOOKSTRUCT hook;
BOOL eatMsg;
/* find the window to dispatch this mouse message to */
hittest = HTCLIENT;
GetGUIThreadInfo( GetCurrentThreadId(), &info );
if (!(msg->hwnd = info.hwndCapture))
{
HWND hWndScope = msg->hwnd;
/* If no capture HWND, find window which contains the mouse position.
* Also find the position of the cursor hot spot (hittest) */
if (!IsWindow(hWndScope)) hWndScope = 0;
if (!(msg->hwnd = WINPOS_WindowFromPoint( hWndScope, msg->pt, &hittest )))
msg->hwnd = GetDesktopWindow();
}
if (!WIN_IsCurrentThread( msg->hwnd ))
{
accept_hardware_message( hw_id, FALSE, msg->hwnd );
return FALSE;
}
/* FIXME: is this really the right place for this hook? */
event.message = msg->message;
event.time = msg->time;
event.hwnd = msg->hwnd;
event.paramL = msg->pt.x;
event.paramH = msg->pt.y;
HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
pt = msg->pt;
message = msg->message;
/* Note: windows has no concept of a non-client wheel message */
if (message != WM_MOUSEWHEEL)
{
if (hittest != HTCLIENT)
{
message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
msg->wParam = hittest;
}
else
{
/* coordinates don't get translated while tracking a menu */
/* FIXME: should differentiate popups and top-level menus */
if (!(info.flags & GUI_INMENUMODE))
ScreenToClient( msg->hwnd, &pt );
}
}
msg->lParam = MAKELONG( pt.x, pt.y );
/* translate double clicks */
if ((msg->message == WM_LBUTTONDOWN) ||
(msg->message == WM_RBUTTONDOWN) ||
(msg->message == WM_MBUTTONDOWN) ||
(msg->message == WM_XBUTTONDOWN))
{
BOOL update = remove;
/* translate double clicks -
* note that ...MOUSEMOVEs can slip in between
* ...BUTTONDOWN and ...BUTTONDBLCLK messages */
if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
hittest != HTCLIENT ||
(GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
{
if ((msg->message == clk_msg.message) &&
(msg->hwnd == clk_msg.hwnd) &&
(msg->wParam == clk_msg.wParam) &&
(msg->time - clk_msg.time < GetDoubleClickTime()) &&
(abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
(abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
{
message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
clk_msg.message = 0; /* clear the double click conditions */
update = FALSE;
}
}
if (message < first || message > last) return FALSE;
/* update static double click conditions */
if (update) clk_msg = *msg;
}
else
{
if (message < first || message > last) return FALSE;
}
/* message is accepted now (but may still get dropped) */
hook.pt = msg->pt;
hook.hwnd = msg->hwnd;
hook.wHitTestCode = hittest;
hook.dwExtraInfo = extra_info;
if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
message, (LPARAM)&hook, TRUE ))
{
hook.pt = msg->pt;
hook.hwnd = msg->hwnd;
hook.wHitTestCode = hittest;
hook.dwExtraInfo = extra_info;
HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
accept_hardware_message( hw_id, TRUE, 0 );
return FALSE;
}
if ((hittest == HTERROR) || (hittest == HTNOWHERE))
{
SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
MAKELONG( hittest, msg->message ));
accept_hardware_message( hw_id, TRUE, 0 );
return FALSE;
}
accept_hardware_message( hw_id, remove, 0 );
if (!remove || info.hwndCapture)
{
msg->message = message;
return TRUE;
}
eatMsg = FALSE;
if ((msg->message == WM_LBUTTONDOWN) ||
(msg->message == WM_RBUTTONDOWN) ||
(msg->message == WM_MBUTTONDOWN) ||
(msg->message == WM_XBUTTONDOWN))
{
/* Send the WM_PARENTNOTIFY,
* note that even for double/nonclient clicks
* notification message is still WM_L/M/RBUTTONDOWN.
*/
send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
/* Activate the window if needed */
if (msg->hwnd != info.hwndActive)
{
HWND hwndTop = msg->hwnd;
while (hwndTop)
{
if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
hwndTop = GetParent( hwndTop );
}
if (hwndTop && hwndTop != GetDesktopWindow())
{
LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
MAKELONG( hittest, msg->message ) );
switch(ret)
{
case MA_NOACTIVATEANDEAT:
eatMsg = TRUE;
/* fall through */
case MA_NOACTIVATE:
break;
case MA_ACTIVATEANDEAT:
eatMsg = TRUE;
/* fall through */
case MA_ACTIVATE:
case 0:
if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
break;
default:
WARN( "unknown WM_MOUSEACTIVATE code %ld\n", ret );
break;
}
}
}
}
/* send the WM_SETCURSOR message */
/* Windows sends the normal mouse message as the message parameter
in the WM_SETCURSOR message even if it's non-client mouse message */
SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
msg->message = message;
return !eatMsg;
}
/***********************************************************************
* process_hardware_message
*
* Process a hardware message; return TRUE if message should be passed on to the app
*/
static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
UINT first, UINT last, BOOL remove )
{
if (is_keyboard_message( msg->message ))
return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
if (is_mouse_message( msg->message ))
return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
ERR( "unknown message type %x\n", msg->message );
return FALSE;
}
/***********************************************************************
* call_sendmsg_callback
*
* Call the callback function of SendMessageCallback.
*/
static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
ULONG_PTR data, LRESULT result )
{
if (TRACE_ON(relay))
DPRINTF( "%04lx:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
data, result );
callback( hwnd, msg, data, result );
if (TRACE_ON(relay))
DPRINTF( "%04lx:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
data, result );
}
/***********************************************************************
* get_hook_proc
*
* Retrieve the hook procedure real value for a module-relative proc
*/
static void *get_hook_proc( void *proc, const WCHAR *module )
{
HMODULE mod;
if (!(mod = GetModuleHandleW(module)))
{
TRACE( "loading %s\n", debugstr_w(module) );
/* FIXME: the library will never be freed */
if (!(mod = LoadLibraryW(module))) return NULL;
}
return (char *)mod + (ULONG_PTR)proc;
}
/***********************************************************************
* peek_message
*
* Peek for a message matching the given parameters. Return FALSE if none available.
* All pending sent messages are processed before returning.
*/
static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, int flags )
{
LRESULT result;
ULONG_PTR extra_info = 0;
struct user_thread_info *thread_info = get_user_thread_info();
struct received_message_info info, *old_info;
unsigned int hw_id = 0; /* id of previous hardware message */
if (!first && !last) last = ~0;
for (;;)
{
NTSTATUS res;
void *buffer = NULL;
size_t size = 0, buffer_size = 0;
do /* loop while buffer is too small */
{
if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
return FALSE;
SERVER_START_REQ( get_message )
{
req->flags = flags;
req->get_win = hwnd;
req->get_first = first;
req->get_last = last;
req->hw_id = hw_id;
if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
if (!(res = wine_server_call( req )))
{
size = wine_server_reply_size( reply );
info.type = reply->type;
info.msg.hwnd = reply->win;
info.msg.message = reply->msg;
info.msg.wParam = reply->wparam;
info.msg.lParam = reply->lparam;
info.msg.time = reply->time;
info.msg.pt.x = reply->x;
info.msg.pt.y = reply->y;
info.hook = reply->hook;
info.hook_proc = reply->hook_proc;
hw_id = reply->hw_id;
extra_info = reply->info;
}
else
{
HeapFree( GetProcessHeap(), 0, buffer );
buffer_size = reply->total;
}
}
SERVER_END_REQ;
} while (res == STATUS_BUFFER_OVERFLOW);
if (res) return FALSE;
TRACE( "got type %d msg %x (%s) hwnd %p wp %x lp %lx\n",
info.type, info.msg.message,
(info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
info.msg.hwnd, info.msg.wParam, info.msg.lParam );
switch(info.type)
{
case MSG_ASCII:
case MSG_UNICODE:
info.flags = ISMEX_SEND;
break;
case MSG_NOTIFY:
info.flags = ISMEX_NOTIFY;
break;
case MSG_CALLBACK:
info.flags = ISMEX_CALLBACK;
break;
case MSG_CALLBACK_RESULT:
call_sendmsg_callback( (SENDASYNCPROC)info.msg.wParam, info.msg.hwnd,
info.msg.message, extra_info, info.msg.lParam );
goto next;
case MSG_WINEVENT:
if (size)
{
WCHAR module[MAX_PATH];
size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
memcpy( module, buffer, size );
module[size / sizeof(WCHAR)] = 0;
if (!(info.hook_proc = get_hook_proc( info.hook_proc, module )))
{
ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
goto next;
}
}
if (TRACE_ON(relay))
DPRINTF( "%04lx:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
GetCurrentThreadId(), info.hook_proc,
info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
info.msg.lParam, extra_info, info.msg.time);
info.hook_proc( info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
info.msg.lParam, extra_info, info.msg.time );
if (TRACE_ON(relay))
DPRINTF( "%04lx:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%x,child_id=%lx,tid=%04lx,time=%lx)\n",
GetCurrentThreadId(), info.hook_proc,
info.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
info.msg.lParam, extra_info, info.msg.time);
goto next;
case MSG_OTHER_PROCESS:
info.flags = ISMEX_SEND;
if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
&info.msg.lParam, &buffer, size ))
{
ERR( "invalid packed message %x (%s) hwnd %p wp %x lp %lx size %d\n",
info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd), info.msg.hwnd,
info.msg.wParam, info.msg.lParam, size );
/* ignore it */
reply_message( &info, 0, TRUE );
goto next;
}
break;
case MSG_HARDWARE:
if (!process_hardware_message( &info.msg, hw_id, extra_info,
hwnd, first, last, flags & GET_MSG_REMOVE ))
{
TRACE("dropping msg %x\n", info.msg.message );
goto next; /* ignore it */
}
thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
/* fall through */
case MSG_POSTED:
thread_info->GetMessageExtraInfoVal = extra_info;
if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
{
if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
&info.msg.lParam, &buffer, size ))
{
ERR( "invalid packed dde-message %x (%s) hwnd %p wp %x lp %lx size %d\n",
info.msg.message, SPY_GetMsgName(info.msg.message, info.msg.hwnd),
info.msg.hwnd, info.msg.wParam, info.msg.lParam, size );
goto next; /* ignore it */
}
}
*msg = info.msg;
HeapFree( GetProcessHeap(), 0, buffer );
return TRUE;
}
/* if we get here, we have a sent message; call the window procedure */
old_info = thread_info->receive_info;
thread_info->receive_info = &info;
result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
info.msg.lParam, (info.type != MSG_ASCII), FALSE );
reply_message( &info, result, TRUE );
thread_info->receive_info = old_info;
next:
HeapFree( GetProcessHeap(), 0, buffer );
}
}
/***********************************************************************
* process_sent_messages
*
* Process all pending sent messages.
*/
inline static void process_sent_messages(void)
{
MSG msg;
peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
}
/***********************************************************************
* get_server_queue_handle
*
* Get a handle to the server message queue for the current thread.
*/
static HANDLE get_server_queue_handle(void)
{
struct user_thread_info *thread_info = get_user_thread_info();
HANDLE ret;
if (!(ret = thread_info->server_queue))
{
SERVER_START_REQ( get_msg_queue )
{
wine_server_call( req );
ret = reply->handle;
}
SERVER_END_REQ;
thread_info->server_queue = ret;
if (!ret) ERR( "Cannot get server thread queue\n" );
}
return ret;
}
/***********************************************************************
* wait_message_reply
*
* Wait until a sent message gets replied to.
*/
static void wait_message_reply( UINT flags )
{
HANDLE server_queue = get_server_queue_handle();
for (;;)
{
unsigned int wake_bits = 0, changed_bits = 0;
DWORD dwlc, res;
SERVER_START_REQ( set_queue_mask )
{
req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
req->changed_mask = req->wake_mask;
req->skip_wait = 1;
if (!wine_server_call( req ))
{
wake_bits = reply->wake_bits;
changed_bits = reply->changed_bits;
}
}
SERVER_END_REQ;
if (wake_bits & QS_SMRESULT) return; /* got a result */
if (wake_bits & QS_SENDMESSAGE)
{
/* Process the sent message immediately */
process_sent_messages();
continue;
}
/* now wait for it */
ReleaseThunkLock( &dwlc );
if (USER_Driver.pMsgWaitForMultipleObjectsEx)
res = USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &server_queue,
INFINITE, QS_ALLINPUT, 0 );
else
res = WaitForSingleObject( server_queue, INFINITE );
if (dwlc) RestoreThunkLock( dwlc );
}
}
/***********************************************************************
* put_message_in_queue
*
* Put a sent message into the destination queue.
* For inter-process message, reply_size is set to expected size of reply data.
*/
static BOOL put_message_in_queue( DWORD dest_tid, const struct send_message_info *info,
size_t *reply_size )
{
struct packed_message data;
unsigned int res;
int i, timeout = -1;
if (info->type != MSG_NOTIFY &&
info->type != MSG_CALLBACK &&
info->type != MSG_POSTED &&
info->timeout != INFINITE)
timeout = info->timeout;
data.count = 0;
if (info->type == MSG_OTHER_PROCESS)
{
*reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
if (data.count == -1)
{
WARN( "cannot pack message %x\n", info->msg );
return FALSE;
}
}
else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
{
return post_dde_message( dest_tid, &data, info );
}
SERVER_START_REQ( send_message )
{
req->id = dest_tid;
req->type = info->type;
req->flags = 0;
req->win = info->hwnd;
req->msg = info->msg;
req->wparam = info->wparam;
req->lparam = info->lparam;
req->time = GetCurrentTime();
req->timeout = timeout;
if (info->type == MSG_CALLBACK)
{
req->callback = info->callback;
req->info = info->data;
}
if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
if ((res = wine_server_call( req )))
{
if (res == STATUS_INVALID_PARAMETER)
/* FIXME: find a STATUS_ value for this one */
SetLastError( ERROR_INVALID_THREAD_ID );
else
SetLastError( RtlNtStatusToDosError(res) );
}
}
SERVER_END_REQ;
return !res;
}
/***********************************************************************
* retrieve_reply
*
* Retrieve a message reply from the server.
*/
static LRESULT retrieve_reply( const struct send_message_info *info,
size_t reply_size, LRESULT *result )
{
NTSTATUS status;
void *reply_data = NULL;
if (reply_size)
{
if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
{
WARN( "no memory for reply %d bytes, will be truncated\n", reply_size );
reply_size = 0;
}
}
SERVER_START_REQ( get_message_reply )
{
req->cancel = 1;
if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
if (!(status = wine_server_call( req ))) *result = reply->result;
reply_size = wine_server_reply_size( reply );
}
SERVER_END_REQ;
if (!status && reply_size)
unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
HeapFree( GetProcessHeap(), 0, reply_data );
TRACE( "hwnd %p msg %x (%s) wp %x lp %lx got reply %lx (err=%ld)\n",
info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
info->lparam, *result, status );
/* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/***********************************************************************
* send_inter_thread_message
*/
static LRESULT send_inter_thread_message( DWORD dest_tid, const struct send_message_info *info,
LRESULT *res_ptr )
{
size_t reply_size = 0;
TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
USER_CheckNotLock();
if (!put_message_in_queue( dest_tid, info, &reply_size )) return 0;
/* there's no reply to wait for on notify/callback messages */
if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
wait_message_reply( info->flags );
return retrieve_reply( info, reply_size, res_ptr );
}
/***********************************************************************
* MSG_SendInternalMessageTimeout
*
* Same as SendMessageTimeoutW but sends the message to a specific thread
* without requiring a window handle. Only works for internal Wine messages.
*/
LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_info info;
LRESULT ret, result;
assert( msg & 0x80000000 ); /* must be an internal Wine message */
info.type = MSG_UNICODE;
info.hwnd = 0;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = flags;
info.timeout = timeout;
if (USER_IsExitingThread( dest_tid )) return 0;
if (dest_tid == GetCurrentThreadId())
{
result = handle_internal_message( 0, msg, wparam, lparam );
ret = 1;
}
else
{
if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
ret = send_inter_thread_message( dest_tid, &info, &result );
}
if (ret && res_ptr) *res_ptr = result;
return ret;
}
/***********************************************************************
* SendMessageTimeoutW (USER32.@)
*/
LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_info info;
DWORD dest_tid, dest_pid;
LRESULT ret, result;
info.type = MSG_UNICODE;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = flags;
info.timeout = timeout;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
if (res_ptr) *res_ptr = 1;
return 1;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
if (USER_IsExitingThread( dest_tid )) return 0;
SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
if (dest_tid == GetCurrentThreadId())
{
result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
ret = 1;
}
else
{
if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
ret = send_inter_thread_message( dest_tid, &info, &result );
}
SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
if (ret && res_ptr) *res_ptr = result;
return ret;
}
/***********************************************************************
* SendMessageTimeoutA (USER32.@)
*/
LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_info info;
DWORD dest_tid, dest_pid;
LRESULT ret, result;
info.type = MSG_ASCII;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = flags;
info.timeout = timeout;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
if (res_ptr) *res_ptr = 1;
return 1;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, &dest_pid ))) return 0;
if (USER_IsExitingThread( dest_tid )) return 0;
SPY_EnterMessage( SPY_SENDMESSAGE, hwnd, msg, wparam, lparam );
if (dest_tid == GetCurrentThreadId())
{
result = call_window_proc( hwnd, msg, wparam, lparam, FALSE, TRUE );
ret = 1;
}
else if (dest_pid == GetCurrentProcessId())
{
ret = send_inter_thread_message( dest_tid, &info, &result );
}
else
{
/* inter-process message: need to map to Unicode */
info.type = MSG_OTHER_PROCESS;
if (is_unicode_message( info.msg ))
{
if (WINPROC_MapMsg32ATo32W( info.hwnd, info.msg, &info.wparam, &info.lparam ) == -1)
return 0;
ret = send_inter_thread_message( dest_tid, &info, &result );
result = WINPROC_UnmapMsg32ATo32W( info.hwnd, info.msg, info.wparam,
info.lparam, result );
}
else ret = send_inter_thread_message( dest_tid, &info, &result );
}
SPY_ExitMessage( SPY_RESULT_OK, hwnd, msg, result, wparam, lparam );
if (ret && res_ptr) *res_ptr = result;
return ret;
}
/***********************************************************************
* SendMessageW (USER32.@)
*/
LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
LRESULT res = 0;
SendMessageTimeoutW( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
return res;
}
/***********************************************************************
* SendMessageA (USER32.@)
*/
LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
LRESULT res = 0;
SendMessageTimeoutA( hwnd, msg, wparam, lparam, SMTO_NORMAL, INFINITE, &res );
return res;
}
/***********************************************************************
* SendNotifyMessageA (USER32.@)
*/
BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return SendNotifyMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
}
/***********************************************************************
* SendNotifyMessageW (USER32.@)
*/
BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
struct send_message_info info;
DWORD dest_tid;
LRESULT result;
if (is_pointer_message(msg))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
info.type = MSG_NOTIFY;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = 0;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
return TRUE;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
if (USER_IsExitingThread( dest_tid )) return TRUE;
if (dest_tid == GetCurrentThreadId())
{
call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
return TRUE;
}
return send_inter_thread_message( dest_tid, &info, &result );
}
/***********************************************************************
* SendMessageCallbackA (USER32.@)
*/
BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
SENDASYNCPROC callback, ULONG_PTR data )
{
return SendMessageCallbackW( hwnd, msg, map_wparam_AtoW( msg, wparam ),
lparam, callback, data );
}
/***********************************************************************
* SendMessageCallbackW (USER32.@)
*/
BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
SENDASYNCPROC callback, ULONG_PTR data )
{
struct send_message_info info;
LRESULT result;
DWORD dest_tid;
if (is_pointer_message(msg))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
info.type = MSG_CALLBACK;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.callback = callback;
info.data = data;
info.flags = 0;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
return TRUE;
}
if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
if (USER_IsExitingThread( dest_tid )) return TRUE;
if (dest_tid == GetCurrentThreadId())
{
result = call_window_proc( hwnd, msg, wparam, lparam, TRUE, TRUE );
call_sendmsg_callback( callback, hwnd, msg, data, result );
return TRUE;
}
FIXME( "callback will not be called\n" );
return send_inter_thread_message( dest_tid, &info, &result );
}
/***********************************************************************
* ReplyMessage (USER32.@)
*/
BOOL WINAPI ReplyMessage( LRESULT result )
{
struct received_message_info *info = get_user_thread_info()->receive_info;
if (!info) return FALSE;
reply_message( info, result, FALSE );
return TRUE;
}
/***********************************************************************
* InSendMessage (USER32.@)
*/
BOOL WINAPI InSendMessage(void)
{
return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
}
/***********************************************************************
* InSendMessageEx (USER32.@)
*/
DWORD WINAPI InSendMessageEx( LPVOID reserved )
{
struct received_message_info *info = get_user_thread_info()->receive_info;
if (info) return info->flags;
return ISMEX_NOSEND;
}
/***********************************************************************
* PostMessageA (USER32.@)
*/
BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return PostMessageW( hwnd, msg, map_wparam_AtoW( msg, wparam ), lparam );
}
/***********************************************************************
* PostMessageW (USER32.@)
*/
BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
struct send_message_info info;
DWORD dest_tid;
if (is_pointer_message( msg ))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
TRACE( "hwnd %p msg %x (%s) wp %x lp %lx\n",
hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
info.type = MSG_POSTED;
info.hwnd = hwnd;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = 0;
if (is_broadcast(hwnd))
{
EnumWindows( broadcast_message_callback, (LPARAM)&info );
return TRUE;
}
if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
if (!(dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
if (USER_IsExitingThread( dest_tid )) return TRUE;
return put_message_in_queue( dest_tid, &info, NULL );
}
/**********************************************************************
* PostThreadMessageA (USER32.@)
*/
BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
{
return PostThreadMessageW( thread, msg, map_wparam_AtoW( msg, wparam ), lparam );
}
/**********************************************************************
* PostThreadMessageW (USER32.@)
*/
BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
{
struct send_message_info info;
if (is_pointer_message( msg ))
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
return FALSE;
}
if (USER_IsExitingThread( thread )) return TRUE;
info.type = MSG_POSTED;
info.hwnd = 0;
info.msg = msg;
info.wparam = wparam;
info.lparam = lparam;
info.flags = 0;
return put_message_in_queue( thread, &info, NULL );
}
/***********************************************************************
* PostQuitMessage (USER32.@)
*/
void WINAPI PostQuitMessage( INT exitCode )
{
PostThreadMessageW( GetCurrentThreadId(), WM_QUIT, exitCode, 0 );
}
/***********************************************************************
* PeekMessageW (USER32.@)
*/
BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
{
struct user_thread_info *thread_info = get_user_thread_info();
MSG msg;
USER_CheckNotLock();
/* check for graphics events */
if (USER_Driver.pMsgWaitForMultipleObjectsEx)
USER_Driver.pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
hwnd = WIN_GetFullHandle( hwnd );
for (;;)
{
if (!peek_message( &msg, hwnd, first, last, (flags & PM_REMOVE) ? GET_MSG_REMOVE : 0 ))
{
if (!(flags & PM_NOYIELD))
{
DWORD count;
ReleaseThunkLock(&count);
NtYieldExecution();
if (count) RestoreThunkLock(count);
}
return FALSE;
}
if (msg.message & 0x80000000)
{
handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
if (!(flags & PM_REMOVE)) /* have to remove it explicitly */
peek_message( &msg, msg.hwnd, msg.message, msg.message, GET_MSG_REMOVE );
}
else break;
}
thread_info->GetMessageTimeVal = msg.time;
msg.pt.x = LOWORD( thread_info->GetMessagePosVal );
msg.pt.y = HIWORD( thread_info->GetMessagePosVal );
HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
/* copy back our internal safe copy of message data to msg_out.
* msg_out is a variable from the *program*, so it can't be used
* internally as it can get "corrupted" by our use of SendMessage()
* (back to the program) inside the message handling itself. */
if (!msg_out)
{
SetLastError( ERROR_NOACCESS );
return FALSE;
}
*msg_out = msg;
return TRUE;
}
/***********************************************************************
* PeekMessageA (USER32.@)
*/
BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
{
BOOL ret = PeekMessageW( msg, hwnd, first, last, flags );
if (ret) msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
return ret;
}
/***********************************************************************
* GetMessageW (USER32.@)
*/
BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
{
HANDLE server_queue = get_server_queue_handle();
int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
if (first || last)
{
if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
}
else mask |= QS_MOUSE | QS_KEY | QS_TIMER | QS_PAINT;
while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE ))
{
/* wait until one of the bits is set */
unsigned int wake_bits = 0, changed_bits = 0;
DWORD dwlc;
SERVER_START_REQ( set_queue_mask )
{
req->wake_mask = QS_SENDMESSAGE;
req->changed_mask = mask;
req->skip_wait = 1;
if (!wine_server_call( req ))
{
wake_bits = reply->wake_bits;
changed_bits = reply->changed_bits;
}
}
SERVER_END_REQ;
if (changed_bits & mask) continue;
if (wake_bits & QS_SENDMESSAGE) continue;
TRACE( "(%04lx) mask=%08x, bits=%08x, changed=%08x, waiting\n",
GetCurrentThreadId(), mask, wake_bits, changed_bits );
ReleaseThunkLock( &dwlc );
if (USER_Driver.pMsgWaitForMultipleObjectsEx)
USER_Driver.pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE,
QS_ALLINPUT, 0 );
else
WaitForSingleObject( server_queue, INFINITE );
if (dwlc) RestoreThunkLock( dwlc );
}
return (msg->message != WM_QUIT);
}
/***********************************************************************
* GetMessageA (USER32.@)
*/
BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
{
GetMessageW( msg, hwnd, first, last );
msg->wParam = map_wparam_WtoA( msg->message, msg->wParam );
return (msg->message != WM_QUIT);
}
/***********************************************************************
* IsDialogMessage (USER32.@)
* IsDialogMessageA (USER32.@)
*/
BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
{
MSG msg = *pmsg;
msg.wParam = map_wparam_AtoW( msg.message, msg.wParam );
return IsDialogMessageW( hwndDlg, &msg );
}
/***********************************************************************
* TranslateMessage (USER32.@)
*
* Implementation of TranslateMessage.
*
* TranslateMessage translates virtual-key messages into character-messages,
* as follows :
* WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
* ditto replacing WM_* with WM_SYS*
* This produces WM_CHAR messages only for keys mapped to ASCII characters
* by the keyboard driver.
*
* If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
* return value is nonzero, regardless of the translation.
*
*/
BOOL WINAPI TranslateMessage( const MSG *msg )
{
UINT message;
WCHAR wp[2];
BYTE state[256];
if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
TRACE_(key)("Translating key %s (%04x), scancode %02x\n",
SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
GetKeyboardState( state );
/* FIXME : should handle ToUnicode yielding 2 */
switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
{
case 1:
message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
break;
case -1:
message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
break;
}
return TRUE;
}
/***********************************************************************
* DispatchMessageA (USER32.@)
*/
LONG WINAPI DispatchMessageA( const MSG* msg )
{
WND * wndPtr;
LONG retval;
WNDPROC winproc;
/* Process timer messages */
if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
{
if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
msg->message, msg->wParam, GetTickCount() );
}
if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
{
if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
{
if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (wndPtr->tid != GetCurrentThreadId())
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
WIN_ReleasePtr( wndPtr );
return 0;
}
winproc = wndPtr->winproc;
WIN_ReleasePtr( wndPtr );
SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
msg->wParam, msg->lParam );
retval = CallWindowProcA( winproc, msg->hwnd, msg->message,
msg->wParam, msg->lParam );
SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
msg->wParam, msg->lParam );
if (msg->message == WM_PAINT)
{
/* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
GetUpdateRgn( msg->hwnd, hrgn, TRUE );
DeleteObject( hrgn );
}
return retval;
}
/***********************************************************************
* DispatchMessageW (USER32.@) Process a message
*
* Process the message specified in the structure *_msg_.
*
* If the lpMsg parameter points to a WM_TIMER message and the
* parameter of the WM_TIMER message is not NULL, the lParam parameter
* points to the function that is called instead of the window
* procedure.
*
* The message must be valid.
*
* RETURNS
*
* DispatchMessage() returns the result of the window procedure invoked.
*
* CONFORMANCE
*
* ECMA-234, Win32
*
*/
LONG WINAPI DispatchMessageW( const MSG* msg )
{
WND * wndPtr;
LONG retval;
WNDPROC winproc;
/* Process timer messages */
if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
{
if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
msg->message, msg->wParam, GetTickCount() );
}
if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
{
if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
{
if (IsWindow( msg->hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (wndPtr->tid != GetCurrentThreadId())
{
SetLastError( ERROR_MESSAGE_SYNC_ONLY );
WIN_ReleasePtr( wndPtr );
return 0;
}
winproc = wndPtr->winproc;
WIN_ReleasePtr( wndPtr );
SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
msg->wParam, msg->lParam );
retval = CallWindowProcW( winproc, msg->hwnd, msg->message,
msg->wParam, msg->lParam );
SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
msg->wParam, msg->lParam );
if (msg->message == WM_PAINT)
{
/* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
GetUpdateRgn( msg->hwnd, hrgn, TRUE );
DeleteObject( hrgn );
}
return retval;
}
/***********************************************************************
* GetMessagePos (USER.119)
* GetMessagePos (USER32.@)
*
* The GetMessagePos() function returns a long value representing a
* cursor position, in screen coordinates, when the last message
* retrieved by the GetMessage() function occurs. The x-coordinate is
* in the low-order word of the return value, the y-coordinate is in
* the high-order word. The application can use the MAKEPOINT()
* macro to obtain a POINT structure from the return value.
*
* For the current cursor position, use GetCursorPos().
*
* RETURNS
*
* Cursor position of last message on success, zero on failure.
*
* CONFORMANCE
*
* ECMA-234, Win32
*
*/
DWORD WINAPI GetMessagePos(void)
{
return get_user_thread_info()->GetMessagePosVal;
}
/***********************************************************************
* GetMessageTime (USER.120)
* GetMessageTime (USER32.@)
*
* GetMessageTime() returns the message time for the last message
* retrieved by the function. The time is measured in milliseconds with
* the same offset as GetTickCount().
*
* Since the tick count wraps, this is only useful for moderately short
* relative time comparisons.
*
* RETURNS
*
* Time of last message on success, zero on failure.
*/
LONG WINAPI GetMessageTime(void)
{
return get_user_thread_info()->GetMessageTimeVal;
}
/***********************************************************************
* GetMessageExtraInfo (USER.288)
* GetMessageExtraInfo (USER32.@)
*/
LPARAM WINAPI GetMessageExtraInfo(void)
{
return get_user_thread_info()->GetMessageExtraInfoVal;
}
/***********************************************************************
* SetMessageExtraInfo (USER32.@)
*/
LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
{
struct user_thread_info *thread_info = get_user_thread_info();
LONG old_value = thread_info->GetMessageExtraInfoVal;
thread_info->GetMessageExtraInfoVal = lParam;
return old_value;
}
/***********************************************************************
* WaitMessage (USER.112) Suspend thread pending messages
* WaitMessage (USER32.@) Suspend thread pending messages
*
* WaitMessage() suspends a thread until events appear in the thread's
* queue.
*/
BOOL WINAPI WaitMessage(void)
{
return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
}
/***********************************************************************
* MsgWaitForMultipleObjectsEx (USER32.@)
*/
DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
DWORD timeout, DWORD mask, DWORD flags )
{
HANDLE handles[MAXIMUM_WAIT_OBJECTS];
DWORD i, ret, lock;
if (count > MAXIMUM_WAIT_OBJECTS-1)
{
SetLastError( ERROR_INVALID_PARAMETER );
return WAIT_FAILED;
}
/* set the queue mask */
SERVER_START_REQ( set_queue_mask )
{
req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
req->changed_mask = mask;
req->skip_wait = 0;
wine_server_call( req );
}
SERVER_END_REQ;
/* Add the thread event to the handle list */
for (i = 0; i < count; i++) handles[i] = pHandles[i];
handles[count] = get_server_queue_handle();
ReleaseThunkLock( &lock );
if (USER_Driver.pMsgWaitForMultipleObjectsEx)
{
ret = USER_Driver.pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
if (ret == count+1) ret = count; /* pretend the msg queue is ready */
}
else
ret = WaitForMultipleObjectsEx( count+1, handles, flags & MWMO_WAITALL,
timeout, flags & MWMO_ALERTABLE );
if (lock) RestoreThunkLock( lock );
return ret;
}
/***********************************************************************
* MsgWaitForMultipleObjects (USER32.@)
*/
DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
BOOL wait_all, DWORD timeout, DWORD mask )
{
return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
wait_all ? MWMO_WAITALL : 0 );
}
/***********************************************************************
* WaitForInputIdle (USER32.@)
*/
DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
{
DWORD start_time, elapsed, ret;
HANDLE idle_event = (HANDLE)-1;
SERVER_START_REQ( wait_input_idle )
{
req->handle = hProcess;
req->timeout = dwTimeOut;
if (!(ret = wine_server_call_err( req ))) idle_event = reply->event;
}
SERVER_END_REQ;
if (ret) return WAIT_FAILED; /* error */
if (!idle_event) return 0; /* no event to wait on */
start_time = GetTickCount();
elapsed = 0;
TRACE("waiting for %p\n", idle_event );
do
{
ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
switch (ret)
{
case WAIT_OBJECT_0+1:
process_sent_messages();
break;
case WAIT_TIMEOUT:
case WAIT_FAILED:
TRACE("timeout or error\n");
return ret;
default:
TRACE("finished\n");
return 0;
}
if (dwTimeOut != INFINITE)
{
elapsed = GetTickCount() - start_time;
if (elapsed > dwTimeOut)
break;
}
}
while (1);
return WAIT_TIMEOUT;
}
/***********************************************************************
* UserYield (USER.332)
*/
void WINAPI UserYield16(void)
{
DWORD count;
/* Handle sent messages */
process_sent_messages();
/* Yield */
ReleaseThunkLock(&count);
if (count)
{
RestoreThunkLock(count);
/* Handle sent messages again */
process_sent_messages();
}
}
/***********************************************************************
* RegisterWindowMessage (USER.118)
* RegisterWindowMessageA (USER32.@)
*/
WORD WINAPI RegisterWindowMessageA( LPCSTR str )
{
TRACE("%s\n", str );
return GlobalAddAtomA( str );
}
/***********************************************************************
* RegisterWindowMessageW (USER32.@)
*/
WORD WINAPI RegisterWindowMessageW( LPCWSTR str )
{
TRACE("%p\n", str );
return GlobalAddAtomW( str );
}
/***********************************************************************
* BroadcastSystemMessage (USER32.@)
* BroadcastSystemMessageA (USER32.@)
*/
LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
{
if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
{
FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
PostMessageA( HWND_BROADCAST, msg, wp, lp );
return 1;
}
else
{
FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp);
return -1;
}
}
/***********************************************************************
* BroadcastSystemMessageW (USER32.@)
*/
LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
{
if ((*recipients & BSM_APPLICATIONS) || (*recipients == BSM_ALLCOMPONENTS))
{
FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n", flags, *recipients, msg, wp, lp );
PostMessageW( HWND_BROADCAST, msg, wp, lp );
return 1;
}
else
{
FIXME( "(%08lx,%08lx,%08x,%08x,%08lx): stub!\n", flags, *recipients, msg, wp, lp );
return -1;
}
}
/***********************************************************************
* SetMessageQueue (USER32.@)
*/
BOOL WINAPI SetMessageQueue( INT size )
{
/* now obsolete the message queue will be expanded dynamically as necessary */
return TRUE;
}
/***********************************************************************
* MessageBeep (USER32.@)
*/
BOOL WINAPI MessageBeep( UINT i )
{
BOOL active = TRUE;
SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
if (active && USER_Driver.pBeep) USER_Driver.pBeep();
return TRUE;
}
/***********************************************************************
* SetTimer (USER32.@)
*/
UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
{
UINT_PTR ret;
WNDPROC winproc = 0;
if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
SERVER_START_REQ( set_win_timer )
{
req->win = hwnd;
req->msg = WM_TIMER;
req->id = id;
req->rate = max( timeout, SYS_TIMER_RATE );
req->lparam = (unsigned int)winproc;
if (!wine_server_call_err( req ))
{
ret = reply->id;
if (!ret) ret = TRUE;
}
else ret = 0;
}
SERVER_END_REQ;
TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
return ret;
}
/***********************************************************************
* SetSystemTimer (USER32.@)
*/
UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
{
UINT_PTR ret;
WNDPROC winproc = 0;
if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, WIN_PROC_32A );
SERVER_START_REQ( set_win_timer )
{
req->win = hwnd;
req->msg = WM_SYSTIMER;
req->id = id;
req->rate = max( timeout, SYS_TIMER_RATE );
req->lparam = (unsigned int)winproc;
if (!wine_server_call_err( req ))
{
ret = reply->id;
if (!ret) ret = TRUE;
}
else ret = 0;
}
SERVER_END_REQ;
TRACE("Added %p %x %p timeout %d\n", hwnd, id, winproc, timeout );
return ret;
}
/***********************************************************************
* KillTimer (USER32.@)
*/
BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
{
BOOL ret;
TRACE("%p %d\n", hwnd, id );
SERVER_START_REQ( kill_win_timer )
{
req->win = hwnd;
req->msg = WM_TIMER;
req->id = id;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* KillSystemTimer (USER32.@)
*/
BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
{
BOOL ret;
TRACE("%p %d\n", hwnd, id );
SERVER_START_REQ( kill_win_timer )
{
req->win = hwnd;
req->msg = WM_SYSTIMER;
req->id = id;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* GetGUIThreadInfo (USER32.@)
*/
BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
{
BOOL ret;
SERVER_START_REQ( get_thread_input )
{
req->tid = id;
if ((ret = !wine_server_call_err( req )))
{
info->flags = 0;
info->hwndActive = reply->active;
info->hwndFocus = reply->focus;
info->hwndCapture = reply->capture;
info->hwndMenuOwner = reply->menu_owner;
info->hwndMoveSize = reply->move_size;
info->hwndCaret = reply->caret;
info->rcCaret.left = reply->rect.left;
info->rcCaret.top = reply->rect.top;
info->rcCaret.right = reply->rect.right;
info->rcCaret.bottom = reply->rect.bottom;
if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
if (reply->move_size) info->flags |= GUI_INMOVESIZE;
if (reply->caret) info->flags |= GUI_CARETBLINKING;
}
}
SERVER_END_REQ;
return ret;
}
/******************************************************************
* IsHungAppWindow (USER32.@)
*
*/
BOOL WINAPI IsHungAppWindow( HWND hWnd )
{
DWORD dwResult;
return !SendMessageTimeoutA(hWnd, WM_NULL, 0, 0, SMTO_ABORTIFHUNG, 5000, &dwResult);
}
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