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/*
* Window messaging support
*
* Copyright 2001 Alexandre Julliard
* Copyright 2008 Maarten Lankhorst
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#include <stdarg.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "winnls.h"
#include "dbt.h"
#include "dde.h"
#include "imm.h"
#include "hidusage.h"
#include "ddk/imm.h"
#include "wine/server.h"
#include "user_private.h"
#include "win.h"
#include "controls.h"
#include "wine/debug.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(msg);
/* Message class descriptor */
const struct builtin_class_descr MESSAGE_builtin_class =
{
L"Message", /* name */
0, /* style */
WINPROC_MESSAGE, /* proc */
0, /* extra */
0, /* cursor */
0 /* brush */
};
/* pack a pointer into a 32/64 portable format */
static inline ULONGLONG pack_ptr( const void *ptr )
{
return (ULONG_PTR)ptr;
}
/* unpack a potentially 64-bit pointer, returning 0 when truncated */
static inline void *unpack_ptr( ULONGLONG ptr64 )
{
if ((ULONG_PTR)ptr64 != ptr64) return 0;
return (void *)(ULONG_PTR)ptr64;
}
/* check for pending WM_CHAR message with DBCS trailing byte */
static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
{
struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
if (!data || !data->get_msg.message) return FALSE;
if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
if (!msg) return FALSE;
*msg = data->get_msg;
if (remove) data->get_msg.message = 0;
return TRUE;
}
/***********************************************************************
* MessageWndProc
*
* Window procedure for "Message" windows (HWND_MESSAGE parent).
*/
LRESULT WINAPI MessageWndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
if (message == WM_NCCREATE) return TRUE;
return 0; /* all other messages are ignored */
}
DWORD get_input_codepage( void )
{
DWORD cp;
int ret;
HKL hkl = NtUserGetKeyboardLayout( 0 );
ret = GetLocaleInfoW( LOWORD(hkl), LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER,
(WCHAR *)&cp, sizeof(cp) / sizeof(WCHAR) );
if (!ret) cp = CP_ACP;
return cp;
}
/***********************************************************************
* map_wparam_AtoW
*
* Convert the wparam of an ASCII message to Unicode.
*/
BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
{
char ch[2];
WCHAR wch[2];
DWORD cp;
wch[0] = wch[1] = 0;
switch(message)
{
case WM_CHAR:
/* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
* messages, in which case the first char is stored, and the conversion
* to Unicode only takes place once the second char is sent/posted.
*/
if (mapping != WMCHAR_MAP_NOMAPPING)
{
struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
BYTE low = LOBYTE(*wparam);
cp = get_input_codepage();
if (HIBYTE(*wparam))
{
ch[0] = low;
ch[1] = HIBYTE(*wparam);
MultiByteToWideChar( cp, 0, ch, 2, wch, 2 );
TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
if (data) data->lead_byte[mapping] = 0;
}
else if (data && data->lead_byte[mapping])
{
ch[0] = data->lead_byte[mapping];
ch[1] = low;
MultiByteToWideChar( cp, 0, ch, 2, wch, 2 );
TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
data->lead_byte[mapping] = 0;
}
else if (!IsDBCSLeadByte( low ))
{
ch[0] = low;
MultiByteToWideChar( cp, 0, ch, 1, wch, 2 );
TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
if (data) data->lead_byte[mapping] = 0;
}
else /* store it and wait for trail byte */
{
if (!data)
{
if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
return FALSE;
get_user_thread_info()->wmchar_data = data;
}
TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
data->lead_byte[mapping] = low;
return FALSE;
}
*wparam = MAKEWPARAM(wch[0], wch[1]);
break;
}
/* else fall through */
case WM_CHARTOITEM:
case EM_SETPASSWORDCHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
case WM_MENUCHAR:
cp = get_input_codepage();
ch[0] = LOBYTE(*wparam);
ch[1] = HIBYTE(*wparam);
MultiByteToWideChar( cp, 0, ch, 2, wch, 2 );
*wparam = MAKEWPARAM(wch[0], wch[1]);
break;
case WM_IME_CHAR:
cp = get_input_codepage();
ch[0] = HIBYTE(*wparam);
ch[1] = LOBYTE(*wparam);
if (ch[0]) MultiByteToWideChar( cp, 0, ch, 2, wch, 2 );
else MultiByteToWideChar( cp, 0, ch + 1, 1, wch, 1 );
*wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
break;
}
return TRUE;
}
/***********************************************************************
* map_wparam_WtoA
*
* Convert the wparam of a Unicode message to ASCII.
*/
static void map_wparam_WtoA( MSG *msg, BOOL remove )
{
BYTE ch[4];
WCHAR wch[2];
DWORD len;
DWORD cp;
switch(msg->message)
{
case WM_CHAR:
if (!HIWORD(msg->wParam))
{
cp = get_input_codepage();
wch[0] = LOWORD(msg->wParam);
ch[0] = ch[1] = 0;
len = WideCharToMultiByte( cp, 0, wch, 1, (LPSTR)ch, 2, NULL, NULL );
if (len == 2) /* DBCS char */
{
struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
if (!data)
{
if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
get_user_thread_info()->wmchar_data = data;
}
if (remove)
{
data->get_msg = *msg;
data->get_msg.wParam = ch[1];
}
msg->wParam = ch[0];
return;
}
}
/* else fall through */
case WM_CHARTOITEM:
case EM_SETPASSWORDCHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
case WM_MENUCHAR:
cp = get_input_codepage();
wch[0] = LOWORD(msg->wParam);
wch[1] = HIWORD(msg->wParam);
ch[0] = ch[1] = 0;
WideCharToMultiByte( cp, 0, wch, 2, (LPSTR)ch, 4, NULL, NULL );
msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
break;
case WM_IME_CHAR:
cp = get_input_codepage();
wch[0] = LOWORD(msg->wParam);
ch[0] = ch[1] = 0;
len = WideCharToMultiByte( cp, 0, wch, 1, (LPSTR)ch, 2, NULL, NULL );
if (len == 2)
msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
else
msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
break;
}
}
/* 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, { (DWORD_PTR)(__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
*/
BOOL post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD dest_tid, DWORD type )
{
void* ptr = NULL;
int size = 0;
UINT_PTR uiLo, uiHi;
LPARAM lp;
HGLOBAL hunlock = 0;
DWORD res;
ULONGLONG hpack;
if (!UnpackDDElParam( msg, lparam, &uiLo, &uiHi ))
return FALSE;
lp = lparam;
switch (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)
{
hpack = pack_ptr( h );
/* send back the value of h on the other side */
ptr = &hpack;
size = sizeof(hpack);
lp = uiLo;
TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
}
}
else
{
/* uiHi should contain either an atom or 0 */
TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
lp = MAKELONG( uiLo, uiHi );
}
break;
case WM_DDE_ADVISE:
case WM_DDE_DATA:
case WM_DDE_POKE:
if (uiLo)
{
size = GlobalSize( (HGLOBAL)uiLo ) ;
if ((msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
(msg == WM_DDE_DATA && size < FIELD_OFFSET(DDEDATA, Value)) ||
(msg == WM_DDE_POKE && size < FIELD_OFFSET(DDEPOKE, Value)))
return FALSE;
}
else if (msg != WM_DDE_DATA) return FALSE;
lp = uiHi;
if (uiLo)
{
if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
{
DDEDATA *dde_data = 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);
hunlock = (HGLOBAL)uiLo;
}
}
TRACE( "send ddepack %u %lx\n", size, uiHi );
break;
case WM_DDE_EXECUTE:
if (lparam)
{
if ((ptr = GlobalLock( (HGLOBAL)lparam) ))
{
size = GlobalSize( (HGLOBAL)lparam );
/* so that the other side can send it back on ACK */
lp = lparam;
hunlock = (HGLOBAL)lparam;
}
}
break;
}
SERVER_START_REQ( send_message )
{
req->id = dest_tid;
req->type = type;
req->flags = 0;
req->win = wine_server_user_handle( hwnd );
req->msg = msg;
req->wparam = wparam;
req->lparam = lp;
req->timeout = TIMEOUT_INFINITE;
if (size) wine_server_add_data( req, ptr, size );
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( msg, lparam );
}
SERVER_END_REQ;
if (hunlock) GlobalUnlock(hunlock);
return !res;
}
/***********************************************************************
* unpack_dde_message
*
* Unpack a posted DDE message received from another process.
*/
BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
void **buffer, size_t size )
{
UINT_PTR uiLo, uiHi;
HGLOBAL hMem = 0;
void* ptr;
switch (message)
{
case WM_DDE_ACK:
if (size)
{
ULONGLONG hpack;
/* hMem is being passed */
if (size != sizeof(hpack)) return FALSE;
if (!buffer || !*buffer) return FALSE;
uiLo = *lparam;
memcpy( &hpack, *buffer, size );
hMem = unpack_ptr( hpack );
uiHi = (UINT_PTR)hMem;
TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
}
else
{
uiLo = LOWORD( *lparam );
uiHi = HIWORD( *lparam );
TRACE("recv dde-ack %lx atom=%lx\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;
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_PTR)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=%p\n", *lparam, 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;
}
BOOL process_rawinput_message( MSG *msg, UINT hw_id, const struct hardware_msg_data *msg_data )
{
struct rawinput_thread_data *thread_data = rawinput_thread_data();
if (msg->message == WM_INPUT_DEVICE_CHANGE)
rawinput_update_device_list();
else
{
thread_data->buffer->header.dwSize = RAWINPUT_BUFFER_SIZE;
if (!rawinput_from_hardware_message( thread_data->buffer, msg_data )) return FALSE;
thread_data->hw_id = hw_id;
msg->lParam = (LPARAM)hw_id;
}
msg->pt = point_phys_to_win_dpi( msg->hwnd, msg->pt );
return TRUE;
}
/***********************************************************************
* SendMessageTimeoutW (USER32.@)
*/
LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_timeout_params params = { .flags = flags, .timeout = timeout };
LRESULT res;
res = NtUserMessageCall( hwnd, msg, wparam, lparam, &params, NtUserSendMessageTimeout, FALSE );
if (res_ptr) *res_ptr = res;
return params.result;
}
/***********************************************************************
* SendMessageTimeoutA (USER32.@)
*/
LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
UINT flags, UINT timeout, PDWORD_PTR res_ptr )
{
struct send_message_timeout_params params = { .flags = flags, .timeout = timeout };
LRESULT res = 0;
if (msg != WM_CHAR || WIN_IsCurrentThread( hwnd ))
{
res = NtUserMessageCall( hwnd, msg, wparam, lparam, &params,
NtUserSendMessageTimeout, TRUE );
}
else if (map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_SENDMESSAGE ))
{
res = NtUserMessageCall( hwnd, msg, wparam, lparam, &params,
NtUserSendMessageTimeout, FALSE );
}
if (res_ptr) *res_ptr = res;
return params.result;
}
/***********************************************************************
* SendMessageW (USER32.@)
*/
LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return NtUserMessageCall( hwnd, msg, wparam, lparam, NULL, NtUserSendMessage, FALSE );
}
/***********************************************************************
* SendMessageA (USER32.@)
*/
LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
if (msg == WM_CHAR && !WIN_IsCurrentThread( hwnd ))
{
if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_SENDMESSAGE ))
return 0;
return NtUserMessageCall( hwnd, msg, wparam, lparam, NULL, NtUserSendMessage, FALSE );
}
return NtUserMessageCall( hwnd, msg, wparam, lparam, NULL, NtUserSendMessage, TRUE );
}
/***********************************************************************
* SendNotifyMessageA (USER32.@)
*/
BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
if (!WIN_IsCurrentThread( hwnd ) && !map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_SENDMESSAGE ))
return FALSE;
return NtUserMessageCall( hwnd, msg, wparam, lparam, 0, NtUserSendNotifyMessage, TRUE );
}
/***********************************************************************
* SendNotifyMessageW (USER32.@)
*/
BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return NtUserMessageCall( hwnd, msg, wparam, lparam, 0, NtUserSendNotifyMessage, FALSE );
}
/***********************************************************************
* SendMessageCallbackA (USER32.@)
*/
BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
SENDASYNCPROC callback, ULONG_PTR data )
{
struct send_message_callback_params params = { .callback = callback, .data = data };
if (!WIN_IsCurrentThread( hwnd ) && !map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_SENDMESSAGE ))
return FALSE;
return NtUserMessageCall( hwnd, msg, wparam, lparam, &params, NtUserSendMessageCallback, TRUE );
}
/***********************************************************************
* SendMessageCallbackW (USER32.@)
*/
BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
SENDASYNCPROC callback, ULONG_PTR data )
{
struct send_message_callback_params params = { .callback = callback, .data = data };
return NtUserMessageCall( hwnd, msg, wparam, lparam, &params, NtUserSendMessageCallback, FALSE );
}
/***********************************************************************
* ReplyMessage (USER32.@)
*/
BOOL WINAPI ReplyMessage( LRESULT result )
{
return NtUserReplyMessage( result, NULL );
}
/***********************************************************************
* InSendMessage (USER32.@)
*/
BOOL WINAPI InSendMessage(void)
{
return (InSendMessageEx( NULL ) & (ISMEX_SEND | ISMEX_NOTIFY | ISMEX_CALLBACK)) != 0;
}
/***********************************************************************
* 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 )
{
if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
return PostMessageW( hwnd, msg, wparam, lparam );
}
/***********************************************************************
* PostMessageW (USER32.@)
*/
BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return NtUserPostMessage( hwnd, msg, wparam, lparam );
}
/**********************************************************************
* PostThreadMessageA (USER32.@)
*/
BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
{
if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
return NtUserPostThreadMessage( thread, msg, wparam, lparam );
}
/***********************************************************************
* PostQuitMessage (USER32.@)
*
* Posts a quit message to the current thread's message queue.
*
* PARAMS
* exit_code [I] Exit code to return from message loop.
*
* RETURNS
* Nothing.
*
* NOTES
* This function is not the same as calling:
*|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
* It instead sets a flag in the message queue that signals it to generate
* a WM_QUIT message when there are no other pending sent or posted messages
* in the queue.
*/
void WINAPI PostQuitMessage( INT exit_code )
{
SERVER_START_REQ( post_quit_message )
{
req->exit_code = exit_code;
wine_server_call( req );
}
SERVER_END_REQ;
}
/***********************************************************************
* PeekMessageW (USER32.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
{
return NtUserPeekMessage( msg_out, hwnd, first, last, flags );
}
/***********************************************************************
* PeekMessageA (USER32.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
{
if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
map_wparam_WtoA( msg, (flags & PM_REMOVE) );
return TRUE;
}
/***********************************************************************
* GetMessageW (USER32.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
{
return NtUserGetMessage( msg, hwnd, first, last );
}
/***********************************************************************
* GetMessageA (USER32.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
{
if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
if (GetMessageW( msg, hwnd, first, last ) < 0) return -1;
map_wparam_WtoA( msg, TRUE );
return (msg->message != WM_QUIT);
}
/***********************************************************************
* IsDialogMessageA (USER32.@)
* IsDialogMessage (USER32.@)
*/
BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
{
MSG msg = *pmsg;
map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
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 )
{
return NtUserTranslateMessage( msg, 0 );
}
/***********************************************************************
* DispatchMessageA (USER32.@)
*
* See DispatchMessageW.
*/
LRESULT WINAPI DECLSPEC_HOTPATCH DispatchMessageA( const MSG* msg )
{
LRESULT retval;
/* Process timer messages */
if (msg->lParam && msg->message == WM_TIMER)
{
__TRY
{
retval = CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
msg->message, msg->wParam, GetTickCount() );
}
__EXCEPT_ALL
{
retval = 0;
}
__ENDTRY
return retval;
}
return NtUserDispatchMessageA( msg );
}
/***********************************************************************
* 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 function stored in lParam (timer callback) is protected
* from causing page-faults.
*
* The message must be valid.
*
* RETURNS
*
* DispatchMessage() returns the result of the window procedure invoked.
*
* CONFORMANCE
*
* ECMA-234, Win32
*
*/
LRESULT WINAPI DECLSPEC_HOTPATCH DispatchMessageW( const MSG* msg )
{
LRESULT retval;
/* Process timer messages */
if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
{
if (msg->lParam)
{
__TRY
{
retval = CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
msg->message, msg->wParam, GetTickCount() );
}
__EXCEPT_ALL
{
retval = 0;
}
__ENDTRY
return retval;
}
}
return NtUserDispatchMessage( msg );
}
/***********************************************************************
* 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 NtUserGetThreadInfo()->message_pos;
}
/***********************************************************************
* 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 NtUserGetThreadInfo()->message_time;
}
/***********************************************************************
* GetMessageExtraInfo (USER.288)
* GetMessageExtraInfo (USER32.@)
*/
LPARAM WINAPI GetMessageExtraInfo(void)
{
return NtUserGetThreadInfo()->message_extra;
}
/***********************************************************************
* SetMessageExtraInfo (USER32.@)
*/
LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
{
struct ntuser_thread_info *thread_info = NtUserGetThreadInfo();
LONG old_value = thread_info->message_extra;
thread_info->message_extra = lParam;
return old_value;
}
/***********************************************************************
* GetCurrentInputMessageSource (USER32.@)
*/
BOOL WINAPI GetCurrentInputMessageSource( INPUT_MESSAGE_SOURCE *source )
{
*source = get_user_thread_info()->msg_source;
return TRUE;
}
/***********************************************************************
* 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 NtUserMsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED;
}
/***********************************************************************
* MsgWaitForMultipleObjects (USER32.@)
*/
DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, const HANDLE *handles,
BOOL wait_all, DWORD timeout, DWORD mask )
{
return NtUserMsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
wait_all ? MWMO_WAITALL : 0 );
}
/***********************************************************************
* WaitForInputIdle (USER32.@)
*/
DWORD WINAPI WaitForInputIdle( HANDLE process, DWORD timeout )
{
return NtUserWaitForInputIdle( process, timeout, FALSE );
}
/***********************************************************************
* RegisterWindowMessageA (USER32.@)
* RegisterWindowMessage (USER.118)
*/
UINT WINAPI RegisterWindowMessageA( LPCSTR str )
{
UINT ret = GlobalAddAtomA(str);
TRACE("%s, ret=%x\n", str, ret);
return ret;
}
/***********************************************************************
* RegisterWindowMessageW (USER32.@)
*/
UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
{
UINT ret = GlobalAddAtomW(str);
TRACE("%s ret=%x\n", debugstr_w(str), ret);
return ret;
}
typedef struct BroadcastParm
{
DWORD flags;
LPDWORD recipients;
UINT msg;
WPARAM wp;
LPARAM lp;
BOOL success;
HWINSTA winsta;
} BroadcastParm;
static BOOL CALLBACK bcast_childwindow( HWND hw, LPARAM lp )
{
BroadcastParm *parm = (BroadcastParm*)lp;
DWORD_PTR retval = 0;
LRESULT lresult;
if (parm->flags & BSF_IGNORECURRENTTASK && WIN_IsCurrentProcess(hw))
{
TRACE("Not telling myself %p\n", hw);
return TRUE;
}
/* I don't know 100% for sure if this is what Windows does, but it fits the tests */
if (parm->flags & BSF_QUERY)
{
TRACE("Telling window %p using SendMessageTimeout\n", hw);
/* Not tested for conflicting flags */
if (parm->flags & BSF_FORCEIFHUNG || parm->flags & BSF_NOHANG)
lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_ABORTIFHUNG, 2000, &retval );
else if (parm->flags & BSF_NOTIMEOUTIFNOTHUNG)
lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NOTIMEOUTIFNOTHUNG, 2000, &retval );
else
lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NORMAL, 2000, &retval );
if (!lresult && GetLastError() == ERROR_TIMEOUT)
{
WARN("Timed out!\n");
if (!(parm->flags & BSF_FORCEIFHUNG))
goto fail;
}
if (retval == BROADCAST_QUERY_DENY)
goto fail;
return TRUE;
fail:
parm->success = FALSE;
return FALSE;
}
else if (parm->flags & BSF_POSTMESSAGE)
{
TRACE("Telling window %p using PostMessage\n", hw);
PostMessageW( hw, parm->msg, parm->wp, parm->lp );
}
else
{
TRACE("Telling window %p using SendNotifyMessage\n", hw);
SendNotifyMessageW( hw, parm->msg, parm->wp, parm->lp );
}
return TRUE;
}
static BOOL CALLBACK bcast_desktop( LPWSTR desktop, LPARAM lp )
{
BOOL ret;
HDESK hdesktop;
BroadcastParm *parm = (BroadcastParm*)lp;
TRACE("desktop: %s\n", debugstr_w( desktop ));
hdesktop = open_winstation_desktop( parm->winsta, desktop, 0, FALSE, DESKTOP_ENUMERATE|DESKTOP_WRITEOBJECTS|STANDARD_RIGHTS_WRITE );
if (!hdesktop)
{
FIXME("Could not open desktop %s\n", debugstr_w(desktop));
return TRUE;
}
ret = EnumDesktopWindows( hdesktop, bcast_childwindow, lp );
NtUserCloseDesktop( hdesktop );
TRACE("-->%d\n", ret);
return parm->success;
}
static BOOL CALLBACK bcast_winsta( LPWSTR winsta, LPARAM lp )
{
BOOL ret;
HWINSTA hwinsta = OpenWindowStationW( winsta, FALSE, WINSTA_ENUMDESKTOPS );
TRACE("hwinsta: %p/%s/%08x\n", hwinsta, debugstr_w( winsta ), GetLastError());
if (!hwinsta)
return TRUE;
((BroadcastParm *)lp)->winsta = hwinsta;
ret = EnumDesktopsW( hwinsta, bcast_desktop, lp );
NtUserCloseWindowStation( hwinsta );
TRACE("-->%d\n", ret);
return ret;
}
/***********************************************************************
* BroadcastSystemMessageA (USER32.@)
* BroadcastSystemMessage (USER32.@)
*/
LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
{
return BroadcastSystemMessageExA( flags, recipients, msg, wp, lp, NULL );
}
/***********************************************************************
* BroadcastSystemMessageW (USER32.@)
*/
LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
{
return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
}
/***********************************************************************
* BroadcastSystemMessageExA (USER32.@)
*/
LONG WINAPI BroadcastSystemMessageExA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
{
map_wparam_AtoW( msg, &wp, WMCHAR_MAP_NOMAPPING );
return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
}
/***********************************************************************
* BroadcastSystemMessageExW (USER32.@)
*/
LONG WINAPI BroadcastSystemMessageExW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
{
BroadcastParm parm;
DWORD recips = BSM_ALLCOMPONENTS;
BOOL ret = TRUE;
static const DWORD all_flags = ( BSF_QUERY | BSF_IGNORECURRENTTASK | BSF_FLUSHDISK | BSF_NOHANG
| BSF_POSTMESSAGE | BSF_FORCEIFHUNG | BSF_NOTIMEOUTIFNOTHUNG
| BSF_ALLOWSFW | BSF_SENDNOTIFYMESSAGE | BSF_RETURNHDESK | BSF_LUID );
TRACE("Flags: %08x, recipients: %p(0x%x), msg: %04x, wparam: %08lx, lparam: %08lx\n", flags, recipients,
(recipients ? *recipients : recips), msg, wp, lp);
if (flags & ~all_flags)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!recipients)
recipients = &recips;
if ( pinfo && flags & BSF_QUERY )
FIXME("Not returning PBSMINFO information yet\n");
parm.flags = flags;
parm.recipients = recipients;
parm.msg = msg;
parm.wp = wp;
parm.lp = lp;
parm.success = TRUE;
if (*recipients & BSM_ALLDESKTOPS || *recipients == BSM_ALLCOMPONENTS)
ret = EnumWindowStationsW(bcast_winsta, (LONG_PTR)&parm);
else if (*recipients & BSM_APPLICATIONS)
{
EnumWindows(bcast_childwindow, (LONG_PTR)&parm);
ret = parm.success;
}
else
FIXME("Recipients %08x not supported!\n", *recipients);
return ret;
}
/***********************************************************************
* 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 )
{
return NtUserMessageBeep( i );
}
/******************************************************************
* SetTimer (USER32.@)
*/
UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
{
return NtUserSetTimer( hwnd, id, timeout, proc, TIMERV_DEFAULT_COALESCING );
}
/******************************************************************
* SetSystemTimer (USER32.@)
*/
UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, void *unknown )
{
if (unknown) FIXME( "ignoring unknown parameter %p\n", unknown );
return NtUserSetSystemTimer( hwnd, id, timeout );
}
/***********************************************************************
* KillSystemTimer (USER32.@)
*/
BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
{
return NtUserKillSystemTimer( hwnd, id );
}
/**********************************************************************
* IsGUIThread (USER32.@)
*/
BOOL WINAPI IsGUIThread( BOOL convert )
{
FIXME( "%u: stub\n", convert );
return TRUE;
}
/******************************************************************
* IsHungAppWindow (USER32.@)
*
*/
BOOL WINAPI IsHungAppWindow( HWND hWnd )
{
BOOL ret;
SERVER_START_REQ( is_window_hung )
{
req->win = wine_server_user_handle( hWnd );
ret = !wine_server_call_err( req ) && reply->is_hung;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************
* ChangeWindowMessageFilter (USER32.@)
*/
BOOL WINAPI ChangeWindowMessageFilter( UINT message, DWORD flag )
{
FIXME( "%x %08x\n", message, flag );
return TRUE;
}
/******************************************************************
* ChangeWindowMessageFilterEx (USER32.@)
*/
BOOL WINAPI ChangeWindowMessageFilterEx( HWND hwnd, UINT message, DWORD action, CHANGEFILTERSTRUCT *changefilter )
{
FIXME( "%p %x %d %p\n", hwnd, message, action, changefilter );
return TRUE;
}
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