ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Sweden-Number/windows/win.c

3236 lines
90 KiB
C
Raw Blame History

/*
* Window related functions
*
* Copyright 1993, 1994 Alexandre Julliard
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "windef.h"
#include "wine/winbase16.h"
#include "wine/winuser16.h"
#include "wine/server.h"
#include "wine/unicode.h"
#include "win.h"
#include "heap.h"
#include "user.h"
#include "dce.h"
#include "controls.h"
#include "cursoricon.h"
#include "hook.h"
#include "message.h"
#include "queue.h"
#include "task.h"
#include "winpos.h"
#include "winerror.h"
#include "stackframe.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(win);
DECLARE_DEBUG_CHANNEL(msg);
#define NB_USER_HANDLES (LAST_USER_HANDLE - FIRST_USER_HANDLE + 1)
/**********************************************************************/
/* Desktop window */
static WND *pWndDesktop = NULL;
static WORD wDragWidth = 4;
static WORD wDragHeight= 3;
static void *user_handles[NB_USER_HANDLES];
/* thread safeness */
extern SYSLEVEL USER_SysLevel; /* FIXME */
/***********************************************************************
* WIN_SuspendWndsLock
*
* Suspend the lock on WND structures.
* Returns the number of locks suspended
*/
int WIN_SuspendWndsLock( void )
{
int isuspendedLocks = _ConfirmSysLevel( &USER_SysLevel );
int count = isuspendedLocks;
while ( count-- > 0 )
_LeaveSysLevel( &USER_SysLevel );
return isuspendedLocks;
}
/***********************************************************************
* WIN_RestoreWndsLock
*
* Restore the suspended locks on WND structures
*/
void WIN_RestoreWndsLock( int ipreviousLocks )
{
while ( ipreviousLocks-- > 0 )
_EnterSysLevel( &USER_SysLevel );
}
/***********************************************************************
* create_window_handle
*
* Create a window handle with the server.
*/
static WND *create_window_handle( HWND parent, HWND owner, ATOM atom, INT size )
{
BOOL res;
user_handle_t handle = 0;
WORD index;
WND *win = HeapAlloc( GetProcessHeap(), 0, size );
if (!win) return NULL;
USER_Lock();
SERVER_START_REQ( create_window )
{
req->parent = parent;
req->owner = owner;
req->atom = atom;
if ((res = !SERVER_CALL_ERR())) handle = req->handle;
}
SERVER_END_REQ;
if (!res)
{
USER_Unlock();
HeapFree( GetProcessHeap(), 0, win );
return NULL;
}
index = LOWORD(handle) - FIRST_USER_HANDLE;
assert( index < NB_USER_HANDLES );
user_handles[index] = win;
win->hwndSelf = handle;
win->dwMagic = WND_MAGIC;
win->irefCount = 1;
return win;
}
/***********************************************************************
* free_window_handle
*
* Free a window handle.
*/
static WND *free_window_handle( HWND hwnd )
{
WND *ptr;
WORD index = LOWORD(hwnd) - FIRST_USER_HANDLE;
if (index >= NB_USER_HANDLES) return NULL;
USER_Lock();
if ((ptr = user_handles[index]))
{
SERVER_START_REQ( destroy_window )
{
req->handle = hwnd;
if (!SERVER_CALL_ERR())
user_handles[index] = NULL;
else
ptr = NULL;
}
SERVER_END_REQ;
}
USER_Unlock();
if (ptr) HeapFree( GetProcessHeap(), 0, ptr );
return ptr;
}
/*******************************************************************
* list_window_children
*
* Build an array of the children of a given window. The array must be
* freed with HeapFree. Returns NULL when no windows are found.
*/
static HWND *list_window_children( HWND hwnd, ATOM atom, DWORD tid )
{
HWND *list = NULL;
SERVER_START_VAR_REQ( get_window_children, REQUEST_MAX_VAR_SIZE )
{
req->parent = hwnd;
req->atom = atom;
req->tid = (void *)tid;
if (!SERVER_CALL())
{
user_handle_t *data = server_data_ptr(req);
int i, count = server_data_size(req) / sizeof(*data);
if (count && ((list = HeapAlloc( GetProcessHeap(), 0, (count + 1) * sizeof(HWND) ))))
{
for (i = 0; i < count; i++) list[i] = data[i];
list[i] = 0;
}
}
}
SERVER_END_VAR_REQ;
return list;
}
/*******************************************************************
* send_parent_notify
*/
static void send_parent_notify( HWND hwnd, UINT msg )
{
if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) return;
if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) return;
SendMessageW( GetParent(hwnd), WM_PARENTNOTIFY,
MAKEWPARAM( msg, GetWindowLongW( hwnd, GWL_ID )), (LPARAM)hwnd );
}
/***********************************************************************
* WIN_GetPtr
*
* Return a pointer to the WND structure if local to the process,
* or WND_OTHER_PROCESS is handle may be valid in other process.
* If ret value is a valid pointer, it must be released with WIN_ReleasePtr.
*/
WND *WIN_GetPtr( HWND hwnd )
{
WND * ptr;
WORD index = LOWORD(hwnd) - FIRST_USER_HANDLE;
if (index >= NB_USER_HANDLES) return NULL;
USER_Lock();
if ((ptr = user_handles[index]))
{
if (ptr->dwMagic == WND_MAGIC && (!HIWORD(hwnd) || hwnd == ptr->hwndSelf))
return ptr;
ptr = NULL;
}
else ptr = WND_OTHER_PROCESS;
USER_Unlock();
return ptr;
}
/***********************************************************************
* WIN_IsCurrentProcess
*
* Check whether a given window belongs to the current process (and return the full handle).
*/
HWND WIN_IsCurrentProcess( HWND hwnd )
{
WND *ptr;
HWND ret;
if (!(ptr = WIN_GetPtr( hwnd )) || ptr == WND_OTHER_PROCESS) return 0;
ret = ptr->hwndSelf;
WIN_ReleasePtr( ptr );
return ret;
}
/***********************************************************************
* WIN_IsCurrentThread
*
* Check whether a given window belongs to the current thread (and return the full handle).
*/
HWND WIN_IsCurrentThread( HWND hwnd )
{
WND *ptr;
HWND ret = 0;
if ((ptr = WIN_GetPtr( hwnd )) && ptr != WND_OTHER_PROCESS)
{
if (ptr->tid == GetCurrentThreadId()) ret = ptr->hwndSelf;
WIN_ReleasePtr( ptr );
}
return ret;
}
/***********************************************************************
* WIN_Handle32
*
* Convert a 16-bit window handle to a full 32-bit handle.
*/
HWND WIN_Handle32( HWND16 hwnd16 )
{
WND *ptr;
HWND hwnd = (HWND)(ULONG_PTR)hwnd16;
if (hwnd16 <= 1 || hwnd16 == 0xffff) return hwnd;
/* do sign extension for -2 and -3 */
if (hwnd16 >= (HWND16)-3) return (HWND)(LONG_PTR)(INT16)hwnd16;
if (!(ptr = WIN_GetPtr( hwnd ))) return hwnd;
if (ptr != WND_OTHER_PROCESS)
{
hwnd = ptr->hwndSelf;
WIN_ReleasePtr( ptr );
}
else /* may belong to another process */
{
SERVER_START_REQ( get_window_info )
{
req->handle = hwnd;
if (!SERVER_CALL_ERR()) hwnd = req->full_handle;
}
SERVER_END_REQ;
}
return hwnd;
}
/***********************************************************************
* WIN_FindWndPtr
*
* Return a pointer to the WND structure corresponding to a HWND.
*/
WND * WIN_FindWndPtr( HWND hwnd )
{
WND * ptr;
if (!hwnd) return NULL;
if ((ptr = WIN_GetPtr( hwnd )))
{
if (ptr != WND_OTHER_PROCESS)
{
/* increment destruction monitoring */
ptr->irefCount++;
return ptr;
}
if (IsWindow( hwnd )) /* check other processes */
{
ERR( "window %04x belongs to other process\n", hwnd );
/* DbgBreakPoint(); */
}
}
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return NULL;
}
/***********************************************************************
* WIN_ReleaseWndPtr
*
* Release the pointer to the WND structure.
*/
void WIN_ReleaseWndPtr(WND *wndPtr)
{
if(!wndPtr) return;
/* Decrement destruction monitoring value */
wndPtr->irefCount--;
/* Check if it's time to release the memory */
if(wndPtr->irefCount == 0 && !wndPtr->dwMagic)
{
/* Release memory */
free_window_handle( wndPtr->hwndSelf );
}
else if(wndPtr->irefCount < 0)
{
/* This else if is useful to monitor the WIN_ReleaseWndPtr function */
ERR("forgot a Lock on %p somewhere\n",wndPtr);
}
/* unlock all WND structures for thread safeness */
USER_Unlock();
}
/***********************************************************************
* WIN_UnlinkWindow
*
* Remove a window from the siblings linked list.
*/
void WIN_UnlinkWindow( HWND hwnd )
{
WIN_LinkWindow( hwnd, 0, 0 );
}
/***********************************************************************
* WIN_LinkWindow
*
* Insert a window into the siblings linked list.
* The window is inserted after the specified window, which can also
* be specified as HWND_TOP or HWND_BOTTOM.
* If parent is 0, window is unlinked from the tree.
*/
void WIN_LinkWindow( HWND hwnd, HWND parent, HWND hwndInsertAfter )
{
WND *wndPtr = WIN_GetPtr( hwnd );
if (!wndPtr) return;
if (wndPtr == WND_OTHER_PROCESS)
{
if (IsWindow(hwnd)) ERR(" cannot link other process window %x\n", hwnd );
return;
}
SERVER_START_REQ( link_window )
{
req->handle = hwnd;
req->parent = parent;
req->previous = hwndInsertAfter;
if (!SERVER_CALL())
{
if (req->full_parent && req->full_parent != wndPtr->parent)
{
wndPtr->owner = 0; /* reset owner when changing parent */
wndPtr->parent = req->full_parent;
}
}
}
SERVER_END_REQ;
WIN_ReleasePtr( wndPtr );
}
/***********************************************************************
* WIN_SetOwner
*
* Change the owner of a window.
*/
void WIN_SetOwner( HWND hwnd, HWND owner )
{
WND *win = WIN_GetPtr( hwnd );
if (!win) return;
if (win == WND_OTHER_PROCESS)
{
if (IsWindow(hwnd)) ERR( "cannot set owner %x on other process window %x\n", owner, hwnd );
return;
}
SERVER_START_REQ( set_window_owner )
{
req->handle = hwnd;
req->owner = owner;
if (!SERVER_CALL()) win->owner = req->full_owner;
}
SERVER_END_REQ;
WIN_ReleasePtr( win );
}
/***********************************************************************
* WIN_SetStyle
*
* Change the style of a window.
*/
LONG WIN_SetStyle( HWND hwnd, LONG style )
{
BOOL ok;
LONG ret = 0;
WND *win = WIN_GetPtr( hwnd );
if (!win) return 0;
if (win == WND_OTHER_PROCESS)
{
if (IsWindow(hwnd))
ERR( "cannot set style %lx on other process window %x\n", style, hwnd );
return 0;
}
if (style == win->dwStyle)
{
WIN_ReleasePtr( win );
return style;
}
SERVER_START_REQ( set_window_info )
{
req->handle = hwnd;
req->flags = SET_WIN_STYLE;
req->style = style;
if ((ok = !SERVER_CALL()))
{
ret = req->old_style;
win->dwStyle = style;
}
}
SERVER_END_REQ;
WIN_ReleasePtr( win );
if (ok && USER_Driver.pSetWindowStyle) USER_Driver.pSetWindowStyle( hwnd, ret );
return ret;
}
/***********************************************************************
* WIN_SetExStyle
*
* Change the extended style of a window.
*/
LONG WIN_SetExStyle( HWND hwnd, LONG style )
{
LONG ret = 0;
WND *win = WIN_GetPtr( hwnd );
if (!win) return 0;
if (win == WND_OTHER_PROCESS)
{
if (IsWindow(hwnd))
ERR( "cannot set exstyle %lx on other process window %x\n", style, hwnd );
return 0;
}
if (style == win->dwExStyle)
{
WIN_ReleasePtr( win );
return style;
}
SERVER_START_REQ( set_window_info )
{
req->handle = hwnd;
req->flags = SET_WIN_EXSTYLE;
req->ex_style = style;
if (!SERVER_CALL())
{
ret = req->old_ex_style;
win->dwExStyle = style;
}
}
SERVER_END_REQ;
WIN_ReleasePtr( win );
return ret;
}
/***********************************************************************
* WIN_SetRectangles
*
* Set the window and client rectangles.
*/
void WIN_SetRectangles( HWND hwnd, const RECT *rectWindow, const RECT *rectClient )
{
WND *win = WIN_GetPtr( hwnd );
BOOL ret;
if (!win) return;
if (win == WND_OTHER_PROCESS)
{
if (IsWindow( hwnd )) ERR( "cannot set rectangles of other process window %x\n", hwnd );
return;
}
SERVER_START_REQ( set_window_rectangles )
{
req->handle = hwnd;
req->window.left = rectWindow->left;
req->window.top = rectWindow->top;
req->window.right = rectWindow->right;
req->window.bottom = rectWindow->bottom;
req->client.left = rectClient->left;
req->client.top = rectClient->top;
req->client.right = rectClient->right;
req->client.bottom = rectClient->bottom;
ret = !SERVER_CALL();
}
SERVER_END_REQ;
if (ret)
{
win->rectWindow = *rectWindow;
win->rectClient = *rectClient;
TRACE( "win %x window (%d,%d)-(%d,%d) client (%d,%d)-(%d,%d)\n", hwnd,
rectWindow->left, rectWindow->top, rectWindow->right, rectWindow->bottom,
rectClient->left, rectClient->top, rectClient->right, rectClient->bottom );
}
WIN_ReleasePtr( win );
}
/***********************************************************************
* find_child_to_repaint
*
* Find a window that needs repaint among the children of the specified window.
*/
static HWND find_child_to_repaint( HWND parent )
{
int i;
HWND ret = 0;
HWND *list;
if (!parent) parent = GetDesktopWindow();
if (!(list = list_window_children( parent, 0, 0 ))) return 0;
for (i = 0; list[i] && !ret; i++)
{
WND *win = WIN_GetPtr( list[i] );
if (!win) continue; /* ignore it */
if (win == WND_OTHER_PROCESS)
{
/* doesn't belong to this process, but check children */
ret = find_child_to_repaint( list[i] );
continue;
}
if (!(win->dwStyle & WS_VISIBLE))
{
WIN_ReleasePtr( win );
continue;
}
if ((win->tid != GetCurrentThreadId()) ||
(!win->hrgnUpdate && !(win->flags & WIN_INTERNAL_PAINT)))
{
/* does not need repaint, check children */
WIN_ReleasePtr( win );
ret = find_child_to_repaint( list[i] );
continue;
}
/* now we have something */
ret = list[i];
if (!(win->dwExStyle & WS_EX_TRANSPARENT))
{
/* not transparent, we can repaint it */
WIN_ReleasePtr( win );
break;
}
WIN_ReleasePtr( win );
/* transparent window, look for non-transparent sibling to paint first */
for (i++; list[i]; i++)
{
if (!(win = WIN_GetPtr( list[i] ))) continue;
if (win == WND_OTHER_PROCESS) continue;
if (!(win->dwStyle & WS_VISIBLE))
{
WIN_ReleasePtr( win );
continue;
}
if (!(win->dwExStyle & WS_EX_TRANSPARENT) &&
(win->hrgnUpdate || (win->flags & WIN_INTERNAL_PAINT)))
{
ret = list[i];
WIN_ReleasePtr( win );
break;
}
WIN_ReleasePtr( win );
}
}
HeapFree( GetProcessHeap(), 0, list );
return ret;
}
/***********************************************************************
* WIN_FindWinToRepaint
*
* Find a window that needs repaint.
*/
HWND WIN_FindWinToRepaint( HWND hwnd )
{
/* Note: the desktop window never gets WM_PAINT messages
* The real reason why is because Windows DesktopWndProc
* does ValidateRgn inside WM_ERASEBKGND handler.
*/
if (hwnd == GetDesktopWindow()) hwnd = 0;
if (hwnd)
{
/* check the window itself first */
WND *win = WIN_FindWndPtr( hwnd );
if (!win) return 0;
if ((win->dwStyle & WS_VISIBLE) &&
(win->hrgnUpdate || (win->flags & WIN_INTERNAL_PAINT)))
{
WIN_ReleaseWndPtr( win );
return hwnd;
}
WIN_ReleaseWndPtr( win );
}
/* now check its children */
return find_child_to_repaint( hwnd );
}
/***********************************************************************
* WIN_DestroyWindow
*
* Destroy storage associated to a window. "Internals" p.358
*/
LRESULT WIN_DestroyWindow( HWND hwnd )
{
WND *wndPtr;
HWND *list;
TRACE("%04x\n", hwnd );
if (!(hwnd = WIN_IsCurrentThread( hwnd )))
{
ERR( "window doesn't belong to current thread\n" );
return 0;
}
/* free child windows */
if ((list = WIN_ListChildren( hwnd )))
{
int i;
for (i = 0; list[i]; i++)
{
if (WIN_IsCurrentThread( list[i] )) WIN_DestroyWindow( list[i] );
else SendMessageW( list[i], WM_WINE_DESTROYWINDOW, 0, 0 );
}
HeapFree( GetProcessHeap(), 0, list );
}
/*
* Clear the update region to make sure no WM_PAINT messages will be
* generated for this window while processing the WM_NCDESTROY.
*/
RedrawWindow( hwnd, NULL, 0,
RDW_VALIDATE | RDW_NOFRAME | RDW_NOERASE | RDW_NOINTERNALPAINT | RDW_NOCHILDREN);
/*
* Send the WM_NCDESTROY to the window being destroyed.
*/
SendMessageA( hwnd, WM_NCDESTROY, 0, 0);
/* FIXME: do we need to fake QS_MOUSEMOVE wakebit? */
WINPOS_CheckInternalPos( hwnd );
if( hwnd == GetCapture()) ReleaseCapture();
/* free resources associated with the window */
TIMER_RemoveWindowTimers( hwnd );
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
wndPtr->hmemTaskQ = 0;
if (!(wndPtr->dwStyle & WS_CHILD))
{
HMENU menu = (HMENU)SetWindowLongW( hwnd, GWL_ID, 0 );
if (menu) DestroyMenu( menu );
}
if (wndPtr->hSysMenu)
{
DestroyMenu( wndPtr->hSysMenu );
wndPtr->hSysMenu = 0;
}
USER_Driver.pDestroyWindow( hwnd );
DCE_FreeWindowDCE( hwnd ); /* Always do this to catch orphaned DCs */
WINPROC_FreeProc( wndPtr->winproc, WIN_PROC_WINDOW );
CLASS_RemoveWindow( wndPtr->class );
wndPtr->class = NULL;
wndPtr->dwMagic = 0; /* Mark it as invalid */
WIN_ReleaseWndPtr( wndPtr );
return 0;
}
/***********************************************************************
* WIN_DestroyThreadWindows
*
* Destroy all children of 'wnd' owned by the current thread.
* Return TRUE if something was done.
*/
void WIN_DestroyThreadWindows( HWND hwnd )
{
HWND *list;
int i;
if (!(list = WIN_ListChildren( hwnd ))) return;
for (i = 0; list[i]; i++)
{
if (WIN_IsCurrentThread( list[i] ))
DestroyWindow( list[i] );
else
WIN_DestroyThreadWindows( list[i] );
}
HeapFree( GetProcessHeap(), 0, list );
}
/***********************************************************************
* WIN_CreateDesktopWindow
*
* Create the desktop window.
*/
BOOL WIN_CreateDesktopWindow(void)
{
struct tagCLASS *class;
HWND hwndDesktop;
INT wndExtra;
DWORD clsStyle;
WNDPROC winproc;
DCE *dce;
CREATESTRUCTA cs;
RECT rect;
TRACE("Creating desktop window\n");
if (!WINPOS_CreateInternalPosAtom() ||
!(class = CLASS_AddWindow( (ATOM)LOWORD(DESKTOP_CLASS_ATOM), 0, WIN_PROC_32W,
&wndExtra, &winproc, &clsStyle, &dce )))
return FALSE;
pWndDesktop = create_window_handle( 0, 0, LOWORD(DESKTOP_CLASS_ATOM),
sizeof(WND) + wndExtra - sizeof(pWndDesktop->wExtra) );
if (!pWndDesktop) return FALSE;
hwndDesktop = pWndDesktop->hwndSelf;
pWndDesktop->tid = 0; /* nobody owns the desktop */
pWndDesktop->parent = 0;
pWndDesktop->owner = 0;
pWndDesktop->class = class;
pWndDesktop->hInstance = 0;
pWndDesktop->text = NULL;
pWndDesktop->hmemTaskQ = 0;
pWndDesktop->hrgnUpdate = 0;
pWndDesktop->hwndLastActive = hwndDesktop;
pWndDesktop->dwStyle = 0;
pWndDesktop->dwExStyle = 0;
pWndDesktop->clsStyle = clsStyle;
pWndDesktop->dce = NULL;
pWndDesktop->pVScroll = NULL;
pWndDesktop->pHScroll = NULL;
pWndDesktop->wIDmenu = 0;
pWndDesktop->helpContext = 0;
pWndDesktop->flags = 0;
pWndDesktop->hSysMenu = 0;
pWndDesktop->userdata = 0;
pWndDesktop->winproc = winproc;
pWndDesktop->cbWndExtra = wndExtra;
cs.lpCreateParams = NULL;
cs.hInstance = 0;
cs.hMenu = 0;
cs.hwndParent = 0;
cs.x = 0;
cs.y = 0;
cs.cx = GetSystemMetrics( SM_CXSCREEN );
cs.cy = GetSystemMetrics( SM_CYSCREEN );
cs.style = pWndDesktop->dwStyle;
cs.dwExStyle = pWndDesktop->dwExStyle;
cs.lpszName = NULL;
cs.lpszClass = DESKTOP_CLASS_ATOM;
SetRect( &rect, 0, 0, cs.cx, cs.cy );
WIN_SetRectangles( hwndDesktop, &rect, &rect );
WIN_SetStyle( hwndDesktop, WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS );
if (!USER_Driver.pCreateWindow( hwndDesktop, &cs, FALSE )) return FALSE;
pWndDesktop->flags |= WIN_NEEDS_ERASEBKGND;
WIN_ReleaseWndPtr( pWndDesktop );
return TRUE;
}
/***********************************************************************
* WIN_FixCoordinates
*
* Fix the coordinates - Helper for WIN_CreateWindowEx.
* returns default show mode in sw.
* Note: the feature presented as undocumented *is* in the MSDN since 1993.
*/
static void WIN_FixCoordinates( CREATESTRUCTA *cs, INT *sw)
{
if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16 ||
cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16)
{
if (cs->style & (WS_CHILD | WS_POPUP))
{
if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16) cs->x = cs->y = 0;
if (cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16) cs->cx = cs->cy = 0;
}
else /* overlapped window */
{
STARTUPINFOA info;
GetStartupInfoA( &info );
if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16)
{
/* Never believe Microsoft's documentation... CreateWindowEx doc says
* that if an overlapped window is created with WS_VISIBLE style bit
* set and the x parameter is set to CW_USEDEFAULT, the system ignores
* the y parameter. However, disassembling NT implementation (WIN32K.SYS)
* reveals that
*
* 1) not only it checks for CW_USEDEFAULT but also for CW_USEDEFAULT16
* 2) it does not ignore the y parameter as the docs claim; instead, it
* uses it as second parameter to ShowWindow() unless y is either
* CW_USEDEFAULT or CW_USEDEFAULT16.
*
* The fact that we didn't do 2) caused bogus windows pop up when wine
* was running apps that were using this obscure feature. Example -
* calc.exe that comes with Win98 (only Win98, it's different from
* the one that comes with Win95 and NT)
*/
if (cs->y != CW_USEDEFAULT && cs->y != CW_USEDEFAULT16) *sw = cs->y;
cs->x = (info.dwFlags & STARTF_USEPOSITION) ? info.dwX : 0;
cs->y = (info.dwFlags & STARTF_USEPOSITION) ? info.dwY : 0;
}
if (cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16)
{
if (info.dwFlags & STARTF_USESIZE)
{
cs->cx = info.dwXSize;
cs->cy = info.dwYSize;
}
else /* if no other hint from the app, pick 3/4 of the screen real estate */
{
RECT r;
SystemParametersInfoA( SPI_GETWORKAREA, 0, &r, 0);
cs->cx = (((r.right - r.left) * 3) / 4) - cs->x;
cs->cy = (((r.bottom - r.top) * 3) / 4) - cs->y;
}
}
}
}
}
/***********************************************************************
* WIN_CreateWindowEx
*
* Implementation of CreateWindowEx().
*/
static HWND WIN_CreateWindowEx( CREATESTRUCTA *cs, ATOM classAtom,
WINDOWPROCTYPE type )
{
INT sw = SW_SHOW;
struct tagCLASS *classPtr;
WND *wndPtr;
HWND hwnd, hwndLinkAfter, parent, owner;
INT wndExtra;
DWORD clsStyle;
WNDPROC winproc;
DCE *dce;
BOOL unicode = (type == WIN_PROC_32W);
TRACE("%s %s ex=%08lx style=%08lx %d,%d %dx%d parent=%04x menu=%04x inst=%08x params=%p\n",
(type == WIN_PROC_32W) ? debugres_w((LPWSTR)cs->lpszName) : debugres_a(cs->lpszName),
(type == WIN_PROC_32W) ? debugres_w((LPWSTR)cs->lpszClass) : debugres_a(cs->lpszClass),
cs->dwExStyle, cs->style, cs->x, cs->y, cs->cx, cs->cy,
cs->hwndParent, cs->hMenu, cs->hInstance, cs->lpCreateParams );
TRACE("winproc type is %d (%s)\n", type, (type == WIN_PROC_16) ? "WIN_PROC_16" :
((type == WIN_PROC_32A) ? "WIN_PROC_32A" : "WIN_PROC_32W") );
/* Find the parent window */
parent = GetDesktopWindow();
owner = 0;
if (cs->hwndParent)
{
/* Make sure parent is valid */
if (!IsWindow( cs->hwndParent ))
{
WARN("Bad parent %04x\n", cs->hwndParent );
return 0;
}
if (cs->style & WS_CHILD) parent = WIN_GetFullHandle(cs->hwndParent);
else owner = GetAncestor( cs->hwndParent, GA_ROOT );
}
else if ((cs->style & WS_CHILD) && !(cs->style & WS_POPUP))
{
WARN("No parent for child window\n" );
return 0; /* WS_CHILD needs a parent, but WS_POPUP doesn't */
}
/* Find the window class */
if (!(classPtr = CLASS_AddWindow( classAtom, cs->hInstance, type,
&wndExtra, &winproc, &clsStyle, &dce )))
{
WARN("Bad class '%s'\n", cs->lpszClass );
return 0;
}
WIN_FixCoordinates(cs, &sw); /* fix default coordinates */
/* Correct the window style - stage 1
*
* These are patches that appear to affect both the style loaded into the
* WIN structure and passed in the CreateStruct to the WM_CREATE etc.
*
* WS_EX_WINDOWEDGE appears to be enforced based on the other styles, so
* why does the user get to set it?
*/
/* This has been tested for WS_CHILD | WS_VISIBLE. It has not been
* tested for WS_POPUP
*/
if ((cs->dwExStyle & WS_EX_DLGMODALFRAME) ||
((!(cs->dwExStyle & WS_EX_STATICEDGE)) &&
(cs->style & (WS_DLGFRAME | WS_THICKFRAME))))
cs->dwExStyle |= WS_EX_WINDOWEDGE;
else
cs->dwExStyle &= ~WS_EX_WINDOWEDGE;
/* Create the window structure */
if (!(wndPtr = create_window_handle( parent, owner, classAtom,
sizeof(*wndPtr) + wndExtra - sizeof(wndPtr->wExtra) )))
{
TRACE("out of memory\n" );
return 0;
}
hwnd = wndPtr->hwndSelf;
/* Fill the window structure */
wndPtr->tid = GetCurrentThreadId();
wndPtr->owner = owner;
wndPtr->parent = parent;
wndPtr->class = classPtr;
wndPtr->winproc = winproc;
wndPtr->hInstance = cs->hInstance;
wndPtr->text = NULL;
wndPtr->hmemTaskQ = InitThreadInput16( 0, 0 );
wndPtr->hrgnUpdate = 0;
wndPtr->hrgnWnd = 0;
wndPtr->hwndLastActive = hwnd;
wndPtr->dwStyle = cs->style & ~WS_VISIBLE;
wndPtr->dwExStyle = cs->dwExStyle;
wndPtr->clsStyle = clsStyle;
wndPtr->wIDmenu = 0;
wndPtr->helpContext = 0;
wndPtr->flags = (type == WIN_PROC_16) ? 0 : WIN_ISWIN32;
wndPtr->pVScroll = NULL;
wndPtr->pHScroll = NULL;
wndPtr->userdata = 0;
wndPtr->hSysMenu = (wndPtr->dwStyle & WS_SYSMENU)
? MENU_GetSysMenu( hwnd, 0 ) : 0;
wndPtr->cbWndExtra = wndExtra;
if (wndExtra) memset( wndPtr->wExtra, 0, wndExtra);
/* Call the WH_CBT hook */
hwndLinkAfter = ((cs->style & (WS_CHILD|WS_MAXIMIZE)) == WS_CHILD)
? HWND_BOTTOM : HWND_TOP;
if (HOOK_IsHooked( WH_CBT ))
{
CBT_CREATEWNDA cbtc;
LRESULT ret;
cbtc.lpcs = cs;
cbtc.hwndInsertAfter = hwndLinkAfter;
ret = (type == WIN_PROC_32W) ? HOOK_CallHooksW(WH_CBT, HCBT_CREATEWND,
(WPARAM)hwnd, (LPARAM)&cbtc)
: HOOK_CallHooksA(WH_CBT, HCBT_CREATEWND,
(WPARAM)hwnd, (LPARAM)&cbtc);
if (ret)
{
TRACE("CBT-hook returned 0\n");
free_window_handle( hwnd );
CLASS_RemoveWindow( classPtr );
WIN_ReleaseWndPtr(wndPtr);
return 0;
}
}
/* Correct the window style - stage 2 */
if (!(cs->style & WS_CHILD))
{
wndPtr->dwStyle |= WS_CLIPSIBLINGS;
if (!(cs->style & WS_POPUP))
{
wndPtr->dwStyle |= WS_CAPTION;
wndPtr->flags |= WIN_NEED_SIZE;
}
}
SERVER_START_REQ( set_window_info )
{
req->handle = hwnd;
req->flags = SET_WIN_STYLE | SET_WIN_EXSTYLE | SET_WIN_INSTANCE;
req->style = wndPtr->dwStyle;
req->ex_style = wndPtr->dwExStyle;
req->instance = (void *)wndPtr->hInstance;
SERVER_CALL();
}
SERVER_END_REQ;
/* Get class or window DC if needed */
if (clsStyle & CS_OWNDC) wndPtr->dce = DCE_AllocDCE(hwnd,DCE_WINDOW_DC);
else if (clsStyle & CS_CLASSDC) wndPtr->dce = dce;
else wndPtr->dce = NULL;
/* Set the window menu */
if ((wndPtr->dwStyle & (WS_CAPTION | WS_CHILD)) == WS_CAPTION )
{
if (cs->hMenu) SetMenu(hwnd, cs->hMenu);
else
{
LPCSTR menuName = (LPCSTR)GetClassLongA( hwnd, GCL_MENUNAME );
if (menuName)
{
if (HIWORD(cs->hInstance))
cs->hMenu = LoadMenuA(cs->hInstance,menuName);
else
cs->hMenu = LoadMenu16(cs->hInstance,menuName);
if (cs->hMenu) SetMenu( hwnd, cs->hMenu );
}
}
}
else SetWindowLongW( hwnd, GWL_ID, (UINT)cs->hMenu );
WIN_ReleaseWndPtr( wndPtr );
if (!USER_Driver.pCreateWindow( hwnd, cs, unicode))
{
WIN_DestroyWindow( hwnd );
return 0;
}
/* Notify the parent window only */
send_parent_notify( hwnd, WM_CREATE );
if (!IsWindow( hwnd )) return 0;
if (cs->style & WS_VISIBLE)
{
/* in case WS_VISIBLE got set in the meantime */
if (!(wndPtr = WIN_GetPtr( hwnd ))) return 0;
WIN_SetStyle( hwnd, wndPtr->dwStyle & ~WS_VISIBLE );
WIN_ReleasePtr( wndPtr );
ShowWindow( hwnd, sw );
}
/* Call WH_SHELL hook */
if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD) && !GetWindow( hwnd, GW_OWNER ))
HOOK_CallHooksA( WH_SHELL, HSHELL_WINDOWCREATED, (WPARAM)hwnd, 0 );
TRACE("created window %04x\n", hwnd);
return hwnd;
}
/***********************************************************************
* CreateWindow (USER.41)
*/
HWND16 WINAPI CreateWindow16( LPCSTR className, LPCSTR windowName,
DWORD style, INT16 x, INT16 y, INT16 width,
INT16 height, HWND16 parent, HMENU16 menu,
HINSTANCE16 instance, LPVOID data )
{
return CreateWindowEx16( 0, className, windowName, style,
x, y, width, height, parent, menu, instance, data );
}
/***********************************************************************
* CreateWindowEx (USER.452)
*/
HWND16 WINAPI CreateWindowEx16( DWORD exStyle, LPCSTR className,
LPCSTR windowName, DWORD style, INT16 x,
INT16 y, INT16 width, INT16 height,
HWND16 parent, HMENU16 menu,
HINSTANCE16 instance, LPVOID data )
{
ATOM classAtom;
CREATESTRUCTA cs;
char buffer[256];
/* Find the class atom */
if (HIWORD(className))
{
if (!(classAtom = GlobalFindAtomA( className )))
{
ERR( "bad class name %s\n", debugres_a(className) );
return 0;
}
}
else
{
classAtom = LOWORD(className);
if (!GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ))
{
ERR( "bad atom %x\n", classAtom);
return 0;
}
className = buffer;
}
/* Fix the coordinates */
cs.x = (x == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)x;
cs.y = (y == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)y;
cs.cx = (width == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)width;
cs.cy = (height == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)height;
/* Create the window */
cs.lpCreateParams = data;
cs.hInstance = (HINSTANCE)instance;
cs.hMenu = (HMENU)menu;
cs.hwndParent = WIN_Handle32( parent );
cs.style = style;
cs.lpszName = windowName;
cs.lpszClass = className;
cs.dwExStyle = exStyle;
return WIN_Handle16( WIN_CreateWindowEx( &cs, classAtom, WIN_PROC_16 ));
}
/***********************************************************************
* CreateWindowExA (USER32.@)
*/
HWND WINAPI CreateWindowExA( DWORD exStyle, LPCSTR className,
LPCSTR windowName, DWORD style, INT x,
INT y, INT width, INT height,
HWND parent, HMENU menu,
HINSTANCE instance, LPVOID data )
{
ATOM classAtom;
CREATESTRUCTA cs;
char buffer[256];
if(!instance)
instance=GetModuleHandleA(NULL);
if(exStyle & WS_EX_MDICHILD)
return CreateMDIWindowA(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data);
/* Find the class atom */
if (HIWORD(className))
{
if (!(classAtom = GlobalFindAtomA( className )))
{
ERR( "bad class name %s\n", debugres_a(className) );
return 0;
}
}
else
{
classAtom = LOWORD(className);
if (!GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ))
{
ERR( "bad atom %x\n", classAtom);
return 0;
}
className = buffer;
}
/* Create the window */
cs.lpCreateParams = data;
cs.hInstance = instance;
cs.hMenu = menu;
cs.hwndParent = parent;
cs.x = x;
cs.y = y;
cs.cx = width;
cs.cy = height;
cs.style = style;
cs.lpszName = windowName;
cs.lpszClass = className;
cs.dwExStyle = exStyle;
return WIN_CreateWindowEx( &cs, classAtom, WIN_PROC_32A );
}
/***********************************************************************
* CreateWindowExW (USER32.@)
*/
HWND WINAPI CreateWindowExW( DWORD exStyle, LPCWSTR className,
LPCWSTR windowName, DWORD style, INT x,
INT y, INT width, INT height,
HWND parent, HMENU menu,
HINSTANCE instance, LPVOID data )
{
ATOM classAtom;
CREATESTRUCTW cs;
WCHAR buffer[256];
if(!instance)
instance=GetModuleHandleA(NULL);
if(exStyle & WS_EX_MDICHILD)
return CreateMDIWindowW(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data);
/* Find the class atom */
if (HIWORD(className))
{
if (!(classAtom = GlobalFindAtomW( className )))
{
ERR( "bad class name %s\n", debugres_w(className) );
return 0;
}
}
else
{
classAtom = LOWORD(className);
if (!GlobalGetAtomNameW( classAtom, buffer, sizeof(buffer)/sizeof(WCHAR) ))
{
ERR( "bad atom %x\n", classAtom);
return 0;
}
className = buffer;
}
/* Create the window */
cs.lpCreateParams = data;
cs.hInstance = instance;
cs.hMenu = menu;
cs.hwndParent = parent;
cs.x = x;
cs.y = y;
cs.cx = width;
cs.cy = height;
cs.style = style;
cs.lpszName = windowName;
cs.lpszClass = className;
cs.dwExStyle = exStyle;
/* Note: we rely on the fact that CREATESTRUCTA and */
/* CREATESTRUCTW have the same layout. */
return WIN_CreateWindowEx( (CREATESTRUCTA *)&cs, classAtom, WIN_PROC_32W );
}
/***********************************************************************
* WIN_SendDestroyMsg
*/
static void WIN_SendDestroyMsg( HWND hwnd )
{
if( CARET_GetHwnd() == hwnd) DestroyCaret();
if (USER_Driver.pResetSelectionOwner)
USER_Driver.pResetSelectionOwner( hwnd, TRUE );
/*
* Send the WM_DESTROY to the window.
*/
SendMessageA( hwnd, WM_DESTROY, 0, 0);
/*
* This WM_DESTROY message can trigger re-entrant calls to DestroyWindow
* make sure that the window still exists when we come back.
*/
if (IsWindow(hwnd))
{
HWND* pWndArray;
int i;
if (!(pWndArray = WIN_ListChildren( hwnd ))) return;
/* start from the end (FIXME: is this needed?) */
for (i = 0; pWndArray[i]; i++) ;
while (--i >= 0)
{
if (IsWindow( pWndArray[i] )) WIN_SendDestroyMsg( pWndArray[i] );
}
HeapFree( GetProcessHeap(), 0, pWndArray );
}
else
WARN("\tdestroyed itself while in WM_DESTROY!\n");
}
/***********************************************************************
* DestroyWindow (USER32.@)
*/
BOOL WINAPI DestroyWindow( HWND hwnd )
{
BOOL is_child;
HWND h;
if (!(hwnd = WIN_IsCurrentThread( hwnd )) || (hwnd == GetDesktopWindow()))
{
SetLastError( ERROR_ACCESS_DENIED );
return FALSE;
}
TRACE("(%04x)\n", hwnd);
/* Look whether the focus is within the tree of windows we will
* be destroying.
*/
h = GetFocus();
if (h == hwnd || IsChild( hwnd, h ))
{
HWND parent = GetAncestor( hwnd, GA_PARENT );
if (parent == GetDesktopWindow()) parent = 0;
SetFocus( parent );
}
/* Call hooks */
if( HOOK_CallHooksA( WH_CBT, HCBT_DESTROYWND, (WPARAM)hwnd, 0L) ) return FALSE;
is_child = (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD) != 0;
if (is_child)
{
if (!USER_IsExitingThread( GetCurrentThreadId() ))
send_parent_notify( hwnd, WM_DESTROY );
}
else if (!GetWindow( hwnd, GW_OWNER ))
{
HOOK_CallHooksA( WH_SHELL, HSHELL_WINDOWDESTROYED, (WPARAM)hwnd, 0L );
/* FIXME: clean up palette - see "Internals" p.352 */
}
if (!IsWindow(hwnd)) return TRUE;
if (USER_Driver.pResetSelectionOwner)
USER_Driver.pResetSelectionOwner( hwnd, FALSE ); /* before the window is unmapped */
/* Hide the window */
ShowWindow( hwnd, SW_HIDE );
if (!IsWindow(hwnd)) return TRUE;
/* Recursively destroy owned windows */
if (!is_child)
{
HWND owner;
for (;;)
{
int i, got_one = 0;
HWND *list = WIN_ListChildren( GetDesktopWindow() );
if (list)
{
for (i = 0; list[i]; i++)
{
if (GetWindow( list[i], GW_OWNER ) != hwnd) continue;
if (WIN_IsCurrentThread( list[i] ))
{
DestroyWindow( list[i] );
got_one = 1;
continue;
}
WIN_SetOwner( list[i], 0 );
}
HeapFree( GetProcessHeap(), 0, list );
}
if (!got_one) break;
}
WINPOS_ActivateOtherWindow( hwnd );
if ((owner = GetWindow( hwnd, GW_OWNER )))
{
WND *ptr = WIN_FindWndPtr( owner );
if (ptr)
{
if (ptr->hwndLastActive == hwnd) ptr->hwndLastActive = owner;
WIN_ReleaseWndPtr( ptr );
}
}
}
/* Send destroy messages */
WIN_SendDestroyMsg( hwnd );
if (!IsWindow( hwnd )) return TRUE;
/* Unlink now so we won't bother with the children later on */
WIN_UnlinkWindow( hwnd );
/* Destroy the window storage */
WIN_DestroyWindow( hwnd );
return TRUE;
}
/***********************************************************************
* CloseWindow (USER32.@)
*/
BOOL WINAPI CloseWindow( HWND hwnd )
{
if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD) return FALSE;
ShowWindow( hwnd, SW_MINIMIZE );
return TRUE;
}
/***********************************************************************
* OpenIcon (USER32.@)
*/
BOOL WINAPI OpenIcon( HWND hwnd )
{
if (!IsIconic( hwnd )) return FALSE;
ShowWindow( hwnd, SW_SHOWNORMAL );
return TRUE;
}
/***********************************************************************
* WIN_FindWindow
*
* Implementation of FindWindow() and FindWindowEx().
*/
static HWND WIN_FindWindow( HWND parent, HWND child, ATOM className, LPCWSTR title )
{
HWND *list = NULL;
HWND retvalue = 0;
int i = 0, len = 0;
WCHAR *buffer = NULL;
if (!parent) parent = GetDesktopWindow();
if (title)
{
len = strlenW(title) + 1; /* one extra char to check for chars beyond the end */
if (!(buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ))) return 0;
}
if (!(list = list_window_children( parent, className, 0 ))) goto done;
if (child)
{
child = WIN_GetFullHandle( child );
while (list[i] && list[i] != child) i++;
if (!list[i]) goto done;
i++; /* start from next window */
}
if (title)
{
while (list[i])
{
if (GetWindowTextW( list[i], buffer, len ) && !strcmpiW( buffer, title )) break;
i++;
}
}
retvalue = list[i];
done:
if (list) HeapFree( GetProcessHeap(), 0, list );
if (buffer) HeapFree( GetProcessHeap(), 0, buffer );
return retvalue;
}
/***********************************************************************
* FindWindowA (USER32.@)
*/
HWND WINAPI FindWindowA( LPCSTR className, LPCSTR title )
{
HWND ret = FindWindowExA( 0, 0, className, title );
if (!ret) SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
return ret;
}
/***********************************************************************
* FindWindowExA (USER32.@)
*/
HWND WINAPI FindWindowExA( HWND parent, HWND child,
LPCSTR className, LPCSTR title )
{
ATOM atom = 0;
LPWSTR buffer;
HWND hwnd;
if (className)
{
/* If the atom doesn't exist, then no class */
/* with this name exists either. */
if (!(atom = GlobalFindAtomA( className )))
{
SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
return 0;
}
}
buffer = HEAP_strdupAtoW( GetProcessHeap(), 0, title );
hwnd = WIN_FindWindow( parent, child, atom, buffer );
HeapFree( GetProcessHeap(), 0, buffer );
return hwnd;
}
/***********************************************************************
* FindWindowExW (USER32.@)
*/
HWND WINAPI FindWindowExW( HWND parent, HWND child,
LPCWSTR className, LPCWSTR title )
{
ATOM atom = 0;
if (className)
{
/* If the atom doesn't exist, then no class */
/* with this name exists either. */
if (!(atom = GlobalFindAtomW( className )))
{
SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
return 0;
}
}
return WIN_FindWindow( parent, child, atom, title );
}
/***********************************************************************
* FindWindowW (USER32.@)
*/
HWND WINAPI FindWindowW( LPCWSTR className, LPCWSTR title )
{
return FindWindowExW( 0, 0, className, title );
}
/**********************************************************************
* GetDesktopWindow (USER32.@)
*/
HWND WINAPI GetDesktopWindow(void)
{
if (pWndDesktop) return pWndDesktop->hwndSelf;
ERR( "You need the -desktop option when running with native USER\n" );
ExitProcess(1);
return 0;
}
/*******************************************************************
* EnableWindow (USER32.@)
*/
BOOL WINAPI EnableWindow( HWND hwnd, BOOL enable )
{
WND *wndPtr;
BOOL retvalue;
LONG style;
HWND full_handle;
if (!(full_handle = WIN_IsCurrentThread( hwnd )))
return SendMessageW( hwnd, WM_WINE_ENABLEWINDOW, enable, 0 );
hwnd = full_handle;
TRACE("( %x, %d )\n", hwnd, enable);
if (!(wndPtr = WIN_GetPtr( hwnd ))) return FALSE;
style = wndPtr->dwStyle;
retvalue = ((style & WS_DISABLED) != 0);
WIN_ReleasePtr( wndPtr );
if (enable && retvalue)
{
WIN_SetStyle( hwnd, style & ~WS_DISABLED );
SendMessageA( hwnd, WM_ENABLE, TRUE, 0 );
}
else if (!enable && !retvalue)
{
SendMessageA( hwnd, WM_CANCELMODE, 0, 0);
WIN_SetStyle( hwnd, style | WS_DISABLED );
if (hwnd == GetFocus())
SetFocus( 0 ); /* A disabled window can't have the focus */
if (hwnd == GetCapture())
ReleaseCapture(); /* A disabled window can't capture the mouse */
SendMessageA( hwnd, WM_ENABLE, FALSE, 0 );
}
return retvalue;
}
/***********************************************************************
* IsWindowEnabled (USER32.@)
*/
BOOL WINAPI IsWindowEnabled(HWND hWnd)
{
return !(GetWindowLongW( hWnd, GWL_STYLE ) & WS_DISABLED);
}
/***********************************************************************
* IsWindowUnicode (USER32.@)
*/
BOOL WINAPI IsWindowUnicode( HWND hwnd )
{
WND * wndPtr;
BOOL retvalue;
if (!(wndPtr = WIN_FindWndPtr(hwnd))) return FALSE;
retvalue = (WINPROC_GetProcType( wndPtr->winproc ) == WIN_PROC_32W);
WIN_ReleaseWndPtr(wndPtr);
return retvalue;
}
/**********************************************************************
* GetWindowWord (USER32.@)
*/
WORD WINAPI GetWindowWord( HWND hwnd, INT offset )
{
if (offset >= 0)
{
WORD retvalue = 0;
WND *wndPtr = WIN_GetPtr( hwnd );
if (!wndPtr)
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (wndPtr == WND_OTHER_PROCESS)
{
if (IsWindow( hwnd ))
FIXME( "(%d) not supported yet on other process window %x\n", offset, hwnd );
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (offset > wndPtr->cbWndExtra - sizeof(WORD))
{
WARN("Invalid offset %d\n", offset );
SetLastError( ERROR_INVALID_INDEX );
}
else retvalue = *(WORD *)(((char *)wndPtr->wExtra) + offset);
WIN_ReleasePtr( wndPtr );
return retvalue;
}
switch(offset)
{
case GWL_HWNDPARENT:
return GetWindowLongW( hwnd, offset );
case GWL_ID:
case GWL_HINSTANCE:
{
LONG ret = GetWindowLongW( hwnd, offset );
if (HIWORD(ret))
WARN("%d: discards high bits of 0x%08lx!\n", offset, ret );
return LOWORD(ret);
}
default:
WARN("Invalid offset %d\n", offset );
return 0;
}
}
/**********************************************************************
* SetWindowWord (USER32.@)
*/
WORD WINAPI SetWindowWord( HWND hwnd, INT offset, WORD newval )
{
WORD *ptr, retval;
WND * wndPtr;
switch(offset)
{
case GWL_ID:
case GWL_HINSTANCE:
case GWL_HWNDPARENT:
return SetWindowLongW( hwnd, offset, (UINT)newval );
default:
if (offset < 0)
{
WARN("Invalid offset %d\n", offset );
SetLastError( ERROR_INVALID_INDEX );
return 0;
}
}
wndPtr = WIN_GetPtr( hwnd );
if (wndPtr == WND_OTHER_PROCESS)
{
if (IsWindow(hwnd))
FIXME( "set %d <- %x not supported yet on other process window %x\n",
offset, newval, hwnd );
wndPtr = NULL;
}
if (!wndPtr)
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (offset > wndPtr->cbWndExtra - sizeof(WORD))
{
WARN("Invalid offset %d\n", offset );
WIN_ReleasePtr(wndPtr);
SetLastError( ERROR_INVALID_INDEX );
return 0;
}
ptr = (WORD *)(((char *)wndPtr->wExtra) + offset);
retval = *ptr;
*ptr = newval;
WIN_ReleasePtr(wndPtr);
return retval;
}
/**********************************************************************
* WIN_GetWindowLong
*
* Helper function for GetWindowLong().
*/
static LONG WIN_GetWindowLong( HWND hwnd, INT offset, WINDOWPROCTYPE type )
{
LONG retvalue = 0;
WND *wndPtr;
if (offset == GWL_HWNDPARENT) return (LONG)GetParent( hwnd );
if (!(wndPtr = WIN_GetPtr( hwnd )))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (wndPtr == WND_OTHER_PROCESS)
{
if (offset >= 0)
{
if (IsWindow(hwnd))
FIXME( "(%d) not supported on other process window %x\n", offset, hwnd );
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (offset == GWL_WNDPROC)
{
SetLastError( ERROR_ACCESS_DENIED );
return 0;
}
SERVER_START_REQ( set_window_info )
{
req->handle = hwnd;
req->flags = 0; /* don't set anything, just retrieve */
if (!SERVER_CALL_ERR())
{
switch(offset)
{
case GWL_STYLE: retvalue = req->style; break;
case GWL_EXSTYLE: retvalue = req->ex_style; break;
case GWL_ID: retvalue = req->id; break;
case GWL_HINSTANCE: retvalue = (ULONG_PTR)req->instance; break;
case GWL_USERDATA: retvalue = (ULONG_PTR)req->user_data; break;
default:
SetLastError( ERROR_INVALID_INDEX );
break;
}
}
}
SERVER_END_REQ;
return retvalue;
}
/* now we have a valid wndPtr */
if (offset >= 0)
{
if (offset > wndPtr->cbWndExtra - sizeof(LONG))
{
WARN("Invalid offset %d\n", offset );
WIN_ReleasePtr( wndPtr );
SetLastError( ERROR_INVALID_INDEX );
return 0;
}
/* Special case for dialog window procedure */
if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG))
retvalue = (LONG)WINPROC_GetProc( (HWINDOWPROC)retvalue, type );
else
retvalue = *(LONG *)(((char *)wndPtr->wExtra) + offset);
WIN_ReleasePtr( wndPtr );
return retvalue;
}
switch(offset)
{
case GWL_USERDATA: retvalue = wndPtr->userdata; break;
case GWL_STYLE: retvalue = wndPtr->dwStyle; break;
case GWL_EXSTYLE: retvalue = wndPtr->dwExStyle; break;
case GWL_ID: retvalue = (LONG)wndPtr->wIDmenu; break;
case GWL_WNDPROC: retvalue = (LONG)WINPROC_GetProc( wndPtr->winproc, type ); break;
case GWL_HINSTANCE: retvalue = wndPtr->hInstance; break;
default:
WARN("Unknown offset %d\n", offset );
SetLastError( ERROR_INVALID_INDEX );
break;
}
WIN_ReleasePtr(wndPtr);
return retvalue;
}
/**********************************************************************
* WIN_SetWindowLong
*
* Helper function for SetWindowLong().
*
* 0 is the failure code. However, in the case of failure SetLastError
* must be set to distinguish between a 0 return value and a failure.
*/
static LONG WIN_SetWindowLong( HWND hwnd, INT offset, LONG newval,
WINDOWPROCTYPE type )
{
LONG retval = 0;
WND *wndPtr;
TRACE( "%x %d %lx %x\n", hwnd, offset, newval, type );
if (!WIN_IsCurrentProcess( hwnd ))
{
if (offset == GWL_WNDPROC)
{
SetLastError( ERROR_ACCESS_DENIED );
return 0;
}
return SendMessageW( hwnd, WM_WINE_SETWINDOWLONG, offset, newval );
}
wndPtr = WIN_GetPtr( hwnd );
if (offset >= 0)
{
LONG *ptr = (LONG *)(((char *)wndPtr->wExtra) + offset);
if (offset > wndPtr->cbWndExtra - sizeof(LONG))
{
WARN("Invalid offset %d\n", offset );
WIN_ReleasePtr( wndPtr );
SetLastError( ERROR_INVALID_INDEX );
return 0;
}
/* Special case for dialog window procedure */
if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG))
{
retval = (LONG)WINPROC_GetProc( (HWINDOWPROC)*ptr, type );
WINPROC_SetProc( (HWINDOWPROC *)ptr, (WNDPROC16)newval,
type, WIN_PROC_WINDOW );
WIN_ReleasePtr( wndPtr );
return retval;
}
retval = *ptr;
*ptr = newval;
WIN_ReleasePtr( wndPtr );
}
else
{
STYLESTRUCT style;
BOOL ok;
/* first some special cases */
switch( offset )
{
case GWL_STYLE:
case GWL_EXSTYLE:
style.styleOld = wndPtr->dwStyle;
style.styleNew = newval;
WIN_ReleasePtr( wndPtr );
SendMessageW( hwnd, WM_STYLECHANGING, offset, (LPARAM)&style );
if (!(wndPtr = WIN_GetPtr( hwnd )) || wndPtr == WND_OTHER_PROCESS) return 0;
newval = style.styleNew;
break;
case GWL_HWNDPARENT:
WIN_ReleasePtr( wndPtr );
return (LONG)SetParent( hwnd, (HWND)newval );
case GWL_WNDPROC:
retval = (LONG)WINPROC_GetProc( wndPtr->winproc, type );
WINPROC_SetProc( &wndPtr->winproc, (WNDPROC16)newval,
type, WIN_PROC_WINDOW );
WIN_ReleasePtr( wndPtr );
return retval;
case GWL_ID:
case GWL_HINSTANCE:
case GWL_USERDATA:
break;
default:
WIN_ReleasePtr( wndPtr );
WARN("Invalid offset %d\n", offset );
SetLastError( ERROR_INVALID_INDEX );
return 0;
}
SERVER_START_REQ( set_window_info )
{
req->handle = hwnd;
switch(offset)
{
case GWL_STYLE:
req->flags = SET_WIN_STYLE;
req->style = newval;
break;
case GWL_EXSTYLE:
req->flags = SET_WIN_EXSTYLE;
req->ex_style = newval;
break;
case GWL_ID:
req->flags = SET_WIN_ID;
req->id = newval;
break;
case GWL_HINSTANCE:
req->flags = SET_WIN_INSTANCE;
req->instance = (void *)newval;
break;
case GWL_USERDATA:
req->flags = SET_WIN_USERDATA;
req->user_data = (void *)newval;
break;
}
if ((ok = !SERVER_CALL_ERR()))
{
switch(offset)
{
case GWL_STYLE:
wndPtr->dwStyle = newval;
retval = req->old_style;
break;
case GWL_EXSTYLE:
wndPtr->dwExStyle = newval;
retval = req->old_ex_style;
break;
case GWL_ID:
wndPtr->wIDmenu = newval;
retval = req->old_id;
break;
case GWL_HINSTANCE:
wndPtr->hInstance = newval;
retval = (HINSTANCE)req->old_instance;
break;
case GWL_USERDATA:
wndPtr->userdata = newval;
retval = (ULONG_PTR)req->old_user_data;
break;
}
}
}
SERVER_END_REQ;
WIN_ReleasePtr( wndPtr );
if (!ok) return 0;
if (offset == GWL_STYLE && USER_Driver.pSetWindowStyle)
USER_Driver.pSetWindowStyle( hwnd, retval );
if (offset == GWL_STYLE || offset == GWL_EXSTYLE)
SendMessageW( hwnd, WM_STYLECHANGED, offset, (LPARAM)&style );
}
return retval;
}
/**********************************************************************
* GetWindowLong (USER.135)
*/
LONG WINAPI GetWindowLong16( HWND16 hwnd, INT16 offset )
{
return WIN_GetWindowLong( WIN_Handle32(hwnd), offset, WIN_PROC_16 );
}
/**********************************************************************
* GetWindowLongA (USER32.@)
*/
LONG WINAPI GetWindowLongA( HWND hwnd, INT offset )
{
return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32A );
}
/**********************************************************************
* GetWindowLongW (USER32.@)
*/
LONG WINAPI GetWindowLongW( HWND hwnd, INT offset )
{
return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32W );
}
/**********************************************************************
* SetWindowLong (USER.136)
*/
LONG WINAPI SetWindowLong16( HWND16 hwnd, INT16 offset, LONG newval )
{
return WIN_SetWindowLong( WIN_Handle32(hwnd), offset, newval, WIN_PROC_16 );
}
/**********************************************************************
* SetWindowLongA (USER32.@)
*/
LONG WINAPI SetWindowLongA( HWND hwnd, INT offset, LONG newval )
{
return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32A );
}
/**********************************************************************
* SetWindowLongW (USER32.@) Set window attribute
*
* SetWindowLong() alters one of a window's attributes or sets a 32-bit (long)
* value in a window's extra memory.
*
* The _hwnd_ parameter specifies the window. is the handle to a
* window that has extra memory. The _newval_ parameter contains the
* new attribute or extra memory value. If positive, the _offset_
* parameter is the byte-addressed location in the window's extra
* memory to set. If negative, _offset_ specifies the window
* attribute to set, and should be one of the following values:
*
* GWL_EXSTYLE The window's extended window style
*
* GWL_STYLE The window's window style.
*
* GWL_WNDPROC Pointer to the window's window procedure.
*
* GWL_HINSTANCE The window's pplication instance handle.
*
* GWL_ID The window's identifier.
*
* GWL_USERDATA The window's user-specified data.
*
* If the window is a dialog box, the _offset_ parameter can be one of
* the following values:
*
* DWL_DLGPROC The address of the window's dialog box procedure.
*
* DWL_MSGRESULT The return value of a message
* that the dialog box procedure processed.
*
* DWL_USER Application specific information.
*
* RETURNS
*
* If successful, returns the previous value located at _offset_. Otherwise,
* returns 0.
*
* NOTES
*
* Extra memory for a window class is specified by a nonzero cbWndExtra
* parameter of the WNDCLASS structure passed to RegisterClass() at the
* time of class creation.
*
* Using GWL_WNDPROC to set a new window procedure effectively creates
* a window subclass. Use CallWindowProc() in the new windows procedure
* to pass messages to the superclass's window procedure.
*
* The user data is reserved for use by the application which created
* the window.
*
* Do not use GWL_STYLE to change the window's WS_DISABLE style;
* instead, call the EnableWindow() function to change the window's
* disabled state.
*
* Do not use GWL_HWNDPARENT to reset the window's parent, use
* SetParent() instead.
*
* Win95:
* When offset is GWL_STYLE and the calling app's ver is 4.0,
* it sends WM_STYLECHANGING before changing the settings
* and WM_STYLECHANGED afterwards.
* App ver 4.0 can't use SetWindowLong to change WS_EX_TOPMOST.
*/
LONG WINAPI SetWindowLongW(
HWND hwnd, /* [in] window to alter */
INT offset, /* [in] offset, in bytes, of location to alter */
LONG newval /* [in] new value of location */
) {
return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32W );
}
/*******************************************************************
* GetWindowTextA (USER32.@)
*/
INT WINAPI GetWindowTextA( HWND hwnd, LPSTR lpString, INT nMaxCount )
{
return (INT)SendMessageA( hwnd, WM_GETTEXT, nMaxCount,
(LPARAM)lpString );
}
/*******************************************************************
* InternalGetWindowText (USER32.@)
*/
INT WINAPI InternalGetWindowText(HWND hwnd,LPWSTR lpString,INT nMaxCount )
{
WND *win = WIN_FindWndPtr( hwnd );
if (!win) return 0;
if (win->text) lstrcpynW( lpString, win->text, nMaxCount );
else lpString[0] = 0;
WIN_ReleaseWndPtr( win );
return strlenW(lpString);
}
/*******************************************************************
* GetWindowTextW (USER32.@)
*/
INT WINAPI GetWindowTextW( HWND hwnd, LPWSTR lpString, INT nMaxCount )
{
return (INT)SendMessageW( hwnd, WM_GETTEXT, nMaxCount,
(LPARAM)lpString );
}
/*******************************************************************
* SetWindowText (USER32.@)
* SetWindowTextA (USER32.@)
*/
BOOL WINAPI SetWindowTextA( HWND hwnd, LPCSTR lpString )
{
return (BOOL)SendMessageA( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
}
/*******************************************************************
* SetWindowTextW (USER32.@)
*/
BOOL WINAPI SetWindowTextW( HWND hwnd, LPCWSTR lpString )
{
return (BOOL)SendMessageW( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
}
/*******************************************************************
* GetWindowTextLengthA (USER32.@)
*/
INT WINAPI GetWindowTextLengthA( HWND hwnd )
{
return SendMessageA( hwnd, WM_GETTEXTLENGTH, 0, 0 );
}
/*******************************************************************
* GetWindowTextLengthW (USER32.@)
*/
INT WINAPI GetWindowTextLengthW( HWND hwnd )
{
return SendMessageW( hwnd, WM_GETTEXTLENGTH, 0, 0 );
}
/*******************************************************************
* IsWindow (USER32.@)
*/
BOOL WINAPI IsWindow( HWND hwnd )
{
WND *ptr;
BOOL ret;
if (!(ptr = WIN_GetPtr( hwnd ))) return FALSE;
if (ptr != WND_OTHER_PROCESS)
{
WIN_ReleasePtr( ptr );
return TRUE;
}
/* check other processes */
SERVER_START_REQ( get_window_info )
{
req->handle = hwnd;
ret = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* GetWindowThreadProcessId (USER32.@)
*/
DWORD WINAPI GetWindowThreadProcessId( HWND hwnd, LPDWORD process )
{
WND *ptr;
DWORD tid = 0;
if (!(ptr = WIN_GetPtr( hwnd )))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE);
return 0;
}
if (ptr != WND_OTHER_PROCESS)
{
/* got a valid window */
tid = ptr->tid;
if (process) *process = GetCurrentProcessId();
WIN_ReleasePtr( ptr );
return tid;
}
/* check other processes */
SERVER_START_REQ( get_window_info )
{
req->handle = hwnd;
if (!SERVER_CALL_ERR())
{
tid = (DWORD)req->tid;
if (process) *process = (DWORD)req->pid;
}
}
SERVER_END_REQ;
return tid;
}
/*****************************************************************
* GetParent (USER32.@)
*/
HWND WINAPI GetParent( HWND hwnd )
{
WND *wndPtr;
HWND retvalue = 0;
if (!(wndPtr = WIN_GetPtr( hwnd )))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (wndPtr == WND_OTHER_PROCESS)
{
LONG style = GetWindowLongW( hwnd, GWL_STYLE );
if (style & (WS_POPUP | WS_CHILD))
{
SERVER_START_REQ( get_window_tree )
{
req->handle = hwnd;
if (!SERVER_CALL_ERR())
{
if (style & WS_CHILD) retvalue = req->parent;
else retvalue = req->owner;
}
}
SERVER_END_REQ;
}
}
else
{
if (wndPtr->dwStyle & WS_CHILD) retvalue = wndPtr->parent;
else if (wndPtr->dwStyle & WS_POPUP) retvalue = wndPtr->owner;
WIN_ReleasePtr( wndPtr );
}
return retvalue;
}
/*****************************************************************
* GetAncestor (USER32.@)
*/
HWND WINAPI GetAncestor( HWND hwnd, UINT type )
{
WND *win;
HWND ret = 0;
size_t size;
for (;;)
{
if (!(win = WIN_GetPtr( hwnd )))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (win == WND_OTHER_PROCESS) break; /* need to do it the hard way */
ret = win->parent;
WIN_ReleasePtr( win );
if (type == GA_PARENT) return ret;
if (!ret || ret == GetDesktopWindow())
{
ret = hwnd; /* if ret is the desktop, hwnd is the root ancestor */
goto done;
}
hwnd = ret; /* restart with parent as hwnd */
}
size = (type == GA_PARENT) ? sizeof(user_handle_t) : REQUEST_MAX_VAR_SIZE;
SERVER_START_VAR_REQ( get_window_parents, size )
{
req->handle = hwnd;
if (!SERVER_CALL())
{
user_handle_t *data = server_data_ptr(req);
int count = server_data_size(req) / sizeof(*data);
if (count)
{
switch(type)
{
case GA_PARENT:
ret = data[0];
break;
case GA_ROOT:
case GA_ROOTOWNER:
if (count > 1) ret = data[count - 2]; /* get the one before the desktop */
else ret = WIN_GetFullHandle( hwnd );
break;
}
}
}
}
SERVER_END_VAR_REQ;
done:
if (ret && type == GA_ROOTOWNER)
{
for (;;)
{
HWND owner = GetWindow( ret, GW_OWNER );
if (!owner) break;
ret = owner;
}
}
return ret;
}
/*****************************************************************
* SetParent (USER32.@)
*/
HWND WINAPI SetParent( HWND hwnd, HWND parent )
{
WND *wndPtr;
HWND retvalue, full_handle;
BOOL was_visible;
if (!parent) parent = GetDesktopWindow();
else parent = WIN_GetFullHandle( parent );
if (!IsWindow( parent ))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (!(full_handle = WIN_IsCurrentThread( hwnd )))
return SendMessageW( hwnd, WM_WINE_SETPARENT, (WPARAM)parent, 0 );
hwnd = full_handle;
if (USER_Driver.pSetParent)
return USER_Driver.pSetParent( hwnd, parent );
/* Windows hides the window first, then shows it again
* including the WM_SHOWWINDOW messages and all */
was_visible = ShowWindow( hwnd, SW_HIDE );
if (!IsWindow( parent )) return 0;
if (!(wndPtr = WIN_GetPtr(hwnd)) || wndPtr == WND_OTHER_PROCESS) return 0;
retvalue = wndPtr->parent; /* old parent */
if (parent != retvalue)
{
WIN_LinkWindow( hwnd, parent, HWND_TOP );
if (parent != GetDesktopWindow()) /* a child window */
{
if (!(wndPtr->dwStyle & WS_CHILD))
{
HMENU menu = (HMENU)SetWindowLongW( hwnd, GWL_ID, 0 );
if (menu) DestroyMenu( menu );
}
}
}
WIN_ReleasePtr( wndPtr );
/* SetParent additionally needs to make hwnd the topmost window
in the x-order and send the expected WM_WINDOWPOSCHANGING and
WM_WINDOWPOSCHANGED notification messages.
*/
SetWindowPos( hwnd, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE | (was_visible ? SWP_SHOWWINDOW : 0) );
/* FIXME: a WM_MOVE is also generated (in the DefWindowProc handler
* for WM_WINDOWPOSCHANGED) in Windows, should probably remove SWP_NOMOVE */
return retvalue;
}
/*******************************************************************
* IsChild (USER32.@)
*/
BOOL WINAPI IsChild( HWND parent, HWND child )
{
HWND *list = WIN_ListParents( child );
int i;
BOOL ret;
if (!list) return FALSE;
parent = WIN_GetFullHandle( parent );
for (i = 0; list[i]; i++) if (list[i] == parent) break;
ret = (list[i] != 0);
HeapFree( GetProcessHeap(), 0, list );
return ret;
}
/***********************************************************************
* IsWindowVisible (USER32.@)
*/
BOOL WINAPI IsWindowVisible( HWND hwnd )
{
HWND *list;
BOOL retval;
int i;
if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE)) return FALSE;
if (!(list = WIN_ListParents( hwnd ))) return TRUE;
for (i = 0; list[i]; i++)
if (!(GetWindowLongW( list[i], GWL_STYLE ) & WS_VISIBLE)) break;
retval = !list[i];
HeapFree( GetProcessHeap(), 0, list );
return retval;
}
/***********************************************************************
* WIN_IsWindowDrawable
*
* hwnd is drawable when it is visible, all parents are not
* minimized, and it is itself not minimized unless we are
* trying to draw its default class icon.
*/
BOOL WIN_IsWindowDrawable( HWND hwnd, BOOL icon )
{
HWND *list;
BOOL retval;
int i;
LONG style = GetWindowLongW( hwnd, GWL_STYLE );
if (!(style & WS_VISIBLE)) return FALSE;
if ((style & WS_MINIMIZE) && icon && GetClassLongA( hwnd, GCL_HICON )) return FALSE;
if (!(list = WIN_ListParents( hwnd ))) return TRUE;
for (i = 0; list[i]; i++)
if ((GetWindowLongW( list[i], GWL_STYLE ) & (WS_VISIBLE|WS_MINIMIZE)) != WS_VISIBLE)
break;
retval = !list[i];
HeapFree( GetProcessHeap(), 0, list );
return retval;
}
/*******************************************************************
* GetTopWindow (USER32.@)
*/
HWND WINAPI GetTopWindow( HWND hwnd )
{
if (!hwnd) hwnd = GetDesktopWindow();
return GetWindow( hwnd, GW_CHILD );
}
/*******************************************************************
* GetWindow (USER32.@)
*/
HWND WINAPI GetWindow( HWND hwnd, UINT rel )
{
HWND retval = 0;
if (rel == GW_OWNER) /* this one may be available locally */
{
WND *wndPtr = WIN_GetPtr( hwnd );
if (!wndPtr)
{
SetLastError( ERROR_INVALID_HANDLE );
return 0;
}
if (wndPtr != WND_OTHER_PROCESS)
{
retval = wndPtr->owner;
WIN_ReleasePtr( wndPtr );
return retval;
}
/* else fall through to server call */
}
SERVER_START_REQ( get_window_tree )
{
req->handle = hwnd;
if (!SERVER_CALL_ERR())
{
switch(rel)
{
case GW_HWNDFIRST:
retval = req->first_sibling;
break;
case GW_HWNDLAST:
retval = req->last_sibling;
break;
case GW_HWNDNEXT:
retval = req->next_sibling;
break;
case GW_HWNDPREV:
retval = req->prev_sibling;
break;
case GW_OWNER:
retval = req->owner;
break;
case GW_CHILD:
retval = req->first_child;
break;
}
}
}
SERVER_END_REQ;
return retval;
}
/***********************************************************************
* WIN_InternalShowOwnedPopups
*
* Internal version of ShowOwnedPopups; Wine functions should use this
* to avoid interfering with application calls to ShowOwnedPopups
* and to make sure the application can't prevent showing/hiding.
*
* Set unmanagedOnly to TRUE to show/hide unmanaged windows only.
*
*/
BOOL WIN_InternalShowOwnedPopups( HWND owner, BOOL fShow, BOOL unmanagedOnly )
{
int count = 0;
WND *pWnd;
HWND *win_array = WIN_ListChildren( GetDesktopWindow() );
if (!win_array) return TRUE;
/*
* Show windows Lowest first, Highest last to preserve Z-Order
*/
while (win_array[count]) count++;
while (--count >= 0)
{
if (GetWindow( win_array[count], GW_OWNER ) != owner) continue;
if (!(pWnd = WIN_FindWndPtr( win_array[count] ))) continue;
if (pWnd->dwStyle & WS_POPUP)
{
if (fShow)
{
/* check in window was flagged for showing in previous WIN_InternalShowOwnedPopups call */
if (pWnd->flags & WIN_NEEDS_INTERNALSOP)
{
/*
* Call ShowWindow directly because an application can intercept WM_SHOWWINDOW messages
*/
ShowWindow(pWnd->hwndSelf,SW_SHOW);
pWnd->flags &= ~WIN_NEEDS_INTERNALSOP; /* remove the flag */
}
}
else
{
if ( IsWindowVisible(pWnd->hwndSelf) && /* hide only if window is visible */
!( pWnd->flags & WIN_NEEDS_INTERNALSOP ) && /* don't hide if previous call already did it */
!( unmanagedOnly && (pWnd->dwExStyle & WS_EX_MANAGED) ) ) /* don't hide managed windows if unmanagedOnly is TRUE */
{
/*
* Call ShowWindow directly because an application can intercept WM_SHOWWINDOW messages
*/
ShowWindow(pWnd->hwndSelf,SW_HIDE);
/* flag the window for showing on next WIN_InternalShowOwnedPopups call */
pWnd->flags |= WIN_NEEDS_INTERNALSOP;
}
}
}
WIN_ReleaseWndPtr( pWnd );
}
HeapFree( GetProcessHeap(), 0, win_array );
return TRUE;
}
/*******************************************************************
* ShowOwnedPopups (USER32.@)
*/
BOOL WINAPI ShowOwnedPopups( HWND owner, BOOL fShow )
{
int count = 0;
WND *pWnd;
HWND *win_array = WIN_ListChildren( GetDesktopWindow() );
if (!win_array) return TRUE;
while (win_array[count]) count++;
while (--count >= 0)
{
if (GetWindow( win_array[count], GW_OWNER ) != owner) continue;
if (!(pWnd = WIN_FindWndPtr( win_array[count] ))) continue;
if (pWnd->dwStyle & WS_POPUP)
{
if (fShow)
{
if (pWnd->flags & WIN_NEEDS_SHOW_OWNEDPOPUP)
{
/* In Windows, ShowOwnedPopups(TRUE) generates
* WM_SHOWWINDOW messages with SW_PARENTOPENING,
* regardless of the state of the owner
*/
SendMessageA(pWnd->hwndSelf, WM_SHOWWINDOW, SW_SHOW, SW_PARENTOPENING);
pWnd->flags &= ~WIN_NEEDS_SHOW_OWNEDPOPUP;
}
}
else
{
if (IsWindowVisible(pWnd->hwndSelf))
{
/* In Windows, ShowOwnedPopups(FALSE) generates
* WM_SHOWWINDOW messages with SW_PARENTCLOSING,
* regardless of the state of the owner
*/
SendMessageA(pWnd->hwndSelf, WM_SHOWWINDOW, SW_HIDE, SW_PARENTCLOSING);
pWnd->flags |= WIN_NEEDS_SHOW_OWNEDPOPUP;
}
}
}
WIN_ReleaseWndPtr( pWnd );
}
HeapFree( GetProcessHeap(), 0, win_array );
return TRUE;
}
/*******************************************************************
* GetLastActivePopup (USER32.@)
*/
HWND WINAPI GetLastActivePopup( HWND hwnd )
{
HWND retval;
WND *wndPtr =WIN_FindWndPtr(hwnd);
if (!wndPtr) return hwnd;
retval = wndPtr->hwndLastActive;
if (!IsWindow( retval )) retval = wndPtr->hwndSelf;
WIN_ReleaseWndPtr(wndPtr);
return retval;
}
/*******************************************************************
* WIN_ListParents
*
* Build an array of all parents of a given window, starting with
* the immediate parent. The array must be freed with HeapFree.
* Returns NULL if window is a top-level window.
*/
HWND *WIN_ListParents( HWND hwnd )
{
WND *win;
HWND current, *list;
int pos = 0, size = 16, count = 0;
if (!(list = HeapAlloc( GetProcessHeap(), 0, size * sizeof(HWND) ))) return NULL;
current = hwnd;
for (;;)
{
if (!(win = WIN_GetPtr( current ))) goto empty;
if (win == WND_OTHER_PROCESS) break; /* need to do it the hard way */
list[pos] = win->parent;
WIN_ReleasePtr( win );
if (!(current = list[pos]))
{
if (!pos) goto empty;
return list;
}
if (++pos == size - 1)
{
/* need to grow the list */
HWND *new_list = HeapReAlloc( GetProcessHeap(), 0, list, (size+16) * sizeof(HWND) );
if (!new_list) goto empty;
list = new_list;
size += 16;
}
}
/* at least one parent belongs to another process, have to query the server */
SERVER_START_VAR_REQ( get_window_parents, REQUEST_MAX_VAR_SIZE )
{
req->handle = hwnd;
if (!SERVER_CALL())
{
user_handle_t *data = server_data_ptr(req);
count = server_data_size(req) / sizeof(*data);
if (count)
{
HWND *new_list = HeapReAlloc( GetProcessHeap(), 0,
list, (count + 1) * sizeof(HWND) );
if (new_list)
{
list = new_list;
for (pos = 0; pos < count; pos++) list[pos] = data[pos];
list[pos] = 0;
}
else count = 0;
}
}
}
SERVER_END_VAR_REQ;
if (count) return list;
empty:
HeapFree( GetProcessHeap(), 0, list );
return NULL;
}
/*******************************************************************
* WIN_ListChildren
*
* Build an array of the children of a given window. The array must be
* freed with HeapFree. Returns NULL when no windows are found.
*/
HWND *WIN_ListChildren( HWND hwnd )
{
return list_window_children( hwnd, 0, 0 );
}
/*******************************************************************
* EnumWindows (USER32.@)
*/
BOOL WINAPI EnumWindows( WNDENUMPROC lpEnumFunc, LPARAM lParam )
{
HWND *list;
BOOL ret = TRUE;
int i, iWndsLocks;
/* We have to build a list of all windows first, to avoid */
/* unpleasant side-effects, for instance if the callback */
/* function changes the Z-order of the windows. */
if (!(list = WIN_ListChildren( GetDesktopWindow() ))) return FALSE;
/* Now call the callback function for every window */
iWndsLocks = WIN_SuspendWndsLock();
for (i = 0; list[i]; i++)
{
/* Make sure that the window still exists */
if (!IsWindow( list[i] )) continue;
if (!(ret = lpEnumFunc( list[i], lParam ))) break;
}
WIN_RestoreWndsLock(iWndsLocks);
HeapFree( GetProcessHeap(), 0, list );
return ret;
}
/**********************************************************************
* EnumTaskWindows16 (USER.225)
*/
BOOL16 WINAPI EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func,
LPARAM lParam )
{
TDB *tdb = TASK_GetPtr( hTask );
if (!tdb) return FALSE;
return EnumThreadWindows( (DWORD)tdb->teb->tid, (WNDENUMPROC)func, lParam );
}
/**********************************************************************
* EnumThreadWindows (USER32.@)
*/
BOOL WINAPI EnumThreadWindows( DWORD id, WNDENUMPROC func, LPARAM lParam )
{
HWND *list;
int i, iWndsLocks;
if (!(list = list_window_children( GetDesktopWindow(), 0, GetCurrentThreadId() )))
return FALSE;
/* Now call the callback function for every window */
iWndsLocks = WIN_SuspendWndsLock();
for (i = 0; list[i]; i++)
if (!func( list[i], lParam )) break;
WIN_RestoreWndsLock(iWndsLocks);
HeapFree( GetProcessHeap(), 0, list );
return TRUE;
}
/**********************************************************************
* WIN_EnumChildWindows
*
* Helper function for EnumChildWindows().
*/
static BOOL WIN_EnumChildWindows( HWND *list, WNDENUMPROC func, LPARAM lParam )
{
HWND *childList;
BOOL ret = FALSE;
for ( ; *list; list++)
{
/* Make sure that the window still exists */
if (!IsWindow( *list )) continue;
/* skip owned windows */
if (GetWindow( *list, GW_OWNER )) continue;
/* Build children list first */
childList = WIN_ListChildren( *list );
ret = func( *list, lParam );
if (childList)
{
if (ret) ret = WIN_EnumChildWindows( childList, func, lParam );
HeapFree( GetProcessHeap(), 0, childList );
}
if (!ret) return FALSE;
}
return TRUE;
}
/**********************************************************************
* EnumChildWindows (USER32.@)
*/
BOOL WINAPI EnumChildWindows( HWND parent, WNDENUMPROC func, LPARAM lParam )
{
HWND *list;
int iWndsLocks;
if (!(list = WIN_ListChildren( parent ))) return FALSE;
iWndsLocks = WIN_SuspendWndsLock();
WIN_EnumChildWindows( list, func, lParam );
WIN_RestoreWndsLock(iWndsLocks);
HeapFree( GetProcessHeap(), 0, list );
return TRUE;
}
/*******************************************************************
* AnyPopup (USER.52)
*/
BOOL16 WINAPI AnyPopup16(void)
{
return AnyPopup();
}
/*******************************************************************
* AnyPopup (USER32.@)
*/
BOOL WINAPI AnyPopup(void)
{
int i;
BOOL retvalue;
HWND *list = WIN_ListChildren( GetDesktopWindow() );
if (!list) return FALSE;
for (i = 0; list[i]; i++)
{
if (IsWindowVisible( list[i] ) && GetWindow( list[i], GW_OWNER )) break;
}
retvalue = (list[i] != 0);
HeapFree( GetProcessHeap(), 0, list );
return retvalue;
}
/*******************************************************************
* FlashWindow (USER32.@)
*/
BOOL WINAPI FlashWindow( HWND hWnd, BOOL bInvert )
{
WND *wndPtr = WIN_FindWndPtr(hWnd);
TRACE("%04x\n", hWnd);
if (!wndPtr) return FALSE;
hWnd = wndPtr->hwndSelf; /* make it a full handle */
if (wndPtr->dwStyle & WS_MINIMIZE)
{
if (bInvert && !(wndPtr->flags & WIN_NCACTIVATED))
{
HDC hDC = GetDC(hWnd);
if (!SendMessageW( hWnd, WM_ERASEBKGND, (WPARAM16)hDC, 0 ))
wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
ReleaseDC( hWnd, hDC );
wndPtr->flags |= WIN_NCACTIVATED;
}
else
{
RedrawWindow( hWnd, 0, 0, RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW | RDW_FRAME );
wndPtr->flags &= ~WIN_NCACTIVATED;
}
WIN_ReleaseWndPtr(wndPtr);
return TRUE;
}
else
{
WPARAM16 wparam;
if (bInvert) wparam = !(wndPtr->flags & WIN_NCACTIVATED);
else wparam = (hWnd == GetActiveWindow());
WIN_ReleaseWndPtr(wndPtr);
SendMessageW( hWnd, WM_NCACTIVATE, wparam, (LPARAM)0 );
return wparam;
}
}
/*******************************************************************
* GetWindowContextHelpId (USER32.@)
*/
DWORD WINAPI GetWindowContextHelpId( HWND hwnd )
{
DWORD retval;
WND *wnd = WIN_FindWndPtr( hwnd );
if (!wnd) return 0;
retval = wnd->helpContext;
WIN_ReleaseWndPtr(wnd);
return retval;
}
/*******************************************************************
* SetWindowContextHelpId (USER32.@)
*/
BOOL WINAPI SetWindowContextHelpId( HWND hwnd, DWORD id )
{
WND *wnd = WIN_FindWndPtr( hwnd );
if (!wnd) return FALSE;
wnd->helpContext = id;
WIN_ReleaseWndPtr(wnd);
return TRUE;
}
/*******************************************************************
* DRAG_QueryUpdate
*
* recursively find a child that contains spDragInfo->pt point
* and send WM_QUERYDROPOBJECT
*/
BOOL16 DRAG_QueryUpdate( HWND hQueryWnd, SEGPTR spDragInfo, BOOL bNoSend )
{
BOOL16 wParam, bResult = 0;
POINT pt;
LPDRAGINFO16 ptrDragInfo = MapSL(spDragInfo);
RECT tempRect;
if (!ptrDragInfo) return FALSE;
CONV_POINT16TO32( &ptrDragInfo->pt, &pt );
GetWindowRect(hQueryWnd,&tempRect);
if( !PtInRect(&tempRect,pt) || !IsWindowEnabled(hQueryWnd)) return FALSE;
if (!IsIconic( hQueryWnd ))
{
GetClientRect( hQueryWnd, &tempRect );
MapWindowPoints( hQueryWnd, 0, (LPPOINT)&tempRect, 2 );
if (PtInRect( &tempRect, pt))
{
int i;
HWND *list = WIN_ListChildren( hQueryWnd );
wParam = 0;
if (list)
{
for (i = 0; list[i]; i++)
{
if (GetWindowLongW( list[i], GWL_STYLE ) & WS_VISIBLE)
{
GetWindowRect( list[i], &tempRect );
if (PtInRect( &tempRect, pt )) break;
}
}
if (list[i])
{
if (IsWindowEnabled( list[i] ))
bResult = DRAG_QueryUpdate( list[i], spDragInfo, bNoSend );
}
HeapFree( GetProcessHeap(), 0, list );
}
if(bResult) return bResult;
}
else wParam = 1;
}
else wParam = 1;
ScreenToClient16(hQueryWnd,&ptrDragInfo->pt);
ptrDragInfo->hScope = hQueryWnd;
if (bNoSend) bResult = (GetWindowLongA( hQueryWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
else bResult = SendMessage16( hQueryWnd, WM_QUERYDROPOBJECT, (WPARAM16)wParam, spDragInfo );
if( !bResult ) CONV_POINT32TO16( &pt, &ptrDragInfo->pt );
return bResult;
}
/*******************************************************************
* DragDetect (USER32.@)
*/
BOOL WINAPI DragDetect( HWND hWnd, POINT pt )
{
MSG msg;
RECT rect;
rect.left = pt.x - wDragWidth;
rect.right = pt.x + wDragWidth;
rect.top = pt.y - wDragHeight;
rect.bottom = pt.y + wDragHeight;
SetCapture(hWnd);
while(1)
{
while(PeekMessageA(&msg ,0 ,WM_MOUSEFIRST ,WM_MOUSELAST ,PM_REMOVE))
{
if( msg.message == WM_LBUTTONUP )
{
ReleaseCapture();
return 0;
}
if( msg.message == WM_MOUSEMOVE )
{
POINT tmp;
tmp.x = LOWORD(msg.lParam);
tmp.y = HIWORD(msg.lParam);
if( !PtInRect( &rect, tmp ))
{
ReleaseCapture();
return 1;
}
}
}
WaitMessage();
}
return 0;
}
/******************************************************************************
* DragObject (USER.464)
*/
DWORD WINAPI DragObject16( HWND16 hwndScope, HWND16 hWnd, UINT16 wObj,
HANDLE16 hOfStruct, WORD szList, HCURSOR16 hCursor )
{
MSG msg;
LPDRAGINFO16 lpDragInfo;
SEGPTR spDragInfo;
HCURSOR16 hDragCursor=0, hOldCursor=0, hBummer=0;
HGLOBAL16 hDragInfo = GlobalAlloc16( GMEM_SHARE | GMEM_ZEROINIT, 2*sizeof(DRAGINFO16));
HCURSOR16 hCurrentCursor = 0;
HWND16 hCurrentWnd = 0;
lpDragInfo = (LPDRAGINFO16) GlobalLock16(hDragInfo);
spDragInfo = K32WOWGlobalLock16(hDragInfo);
if( !lpDragInfo || !spDragInfo ) return 0L;
if (!(hBummer = LoadCursorA(0, MAKEINTRESOURCEA(OCR_NO))))
{
GlobalFree16(hDragInfo);
return 0L;
}
if(hCursor)
{
if( !(hDragCursor = CURSORICON_IconToCursor(hCursor, FALSE)) )
{
GlobalFree16(hDragInfo);
return 0L;
}
if( hDragCursor == hCursor ) hDragCursor = 0;
else hCursor = hDragCursor;
hOldCursor = SetCursor(hDragCursor);
}
lpDragInfo->hWnd = hWnd;
lpDragInfo->hScope = 0;
lpDragInfo->wFlags = wObj;
lpDragInfo->hList = szList; /* near pointer! */
lpDragInfo->hOfStruct = hOfStruct;
lpDragInfo->l = 0L;
SetCapture(hWnd);
ShowCursor( TRUE );
do
{
GetMessageW( &msg, 0, WM_MOUSEFIRST, WM_MOUSELAST );
*(lpDragInfo+1) = *lpDragInfo;
lpDragInfo->pt.x = msg.pt.x;
lpDragInfo->pt.y = msg.pt.y;
/* update DRAGINFO struct */
TRACE_(msg)("lpDI->hScope = %04x\n",lpDragInfo->hScope);
if( DRAG_QueryUpdate(hwndScope, spDragInfo, FALSE) > 0 )
hCurrentCursor = hCursor;
else
{
hCurrentCursor = hBummer;
lpDragInfo->hScope = 0;
}
if( hCurrentCursor )
SetCursor(hCurrentCursor);
/* send WM_DRAGLOOP */
SendMessage16( hWnd, WM_DRAGLOOP, (WPARAM16)(hCurrentCursor != hBummer),
(LPARAM) spDragInfo );
/* send WM_DRAGSELECT or WM_DRAGMOVE */
if( hCurrentWnd != lpDragInfo->hScope )
{
if( hCurrentWnd )
SendMessage16( hCurrentWnd, WM_DRAGSELECT, 0,
(LPARAM)MAKELONG(LOWORD(spDragInfo)+sizeof(DRAGINFO16),
HIWORD(spDragInfo)) );
hCurrentWnd = lpDragInfo->hScope;
if( hCurrentWnd )
SendMessage16( hCurrentWnd, WM_DRAGSELECT, 1, (LPARAM)spDragInfo);
}
else
if( hCurrentWnd )
SendMessage16( hCurrentWnd, WM_DRAGMOVE, 0, (LPARAM)spDragInfo);
} while( msg.message != WM_LBUTTONUP && msg.message != WM_NCLBUTTONUP );
ReleaseCapture();
ShowCursor( FALSE );
if( hCursor )
{
SetCursor( hOldCursor );
if (hDragCursor) DestroyCursor( hDragCursor );
}
if( hCurrentCursor != hBummer )
msg.lParam = SendMessage16( lpDragInfo->hScope, WM_DROPOBJECT,
(WPARAM16)hWnd, (LPARAM)spDragInfo );
else
msg.lParam = 0;
GlobalFree16(hDragInfo);
return (DWORD)(msg.lParam);
}
/******************************************************************************
* GetWindowModuleFileNameA (USER32.@)
*/
UINT WINAPI GetWindowModuleFileNameA( HWND hwnd, LPSTR lpszFileName, UINT cchFileNameMax)
{
FIXME("GetWindowModuleFileNameA(hwnd 0x%x, lpszFileName %p, cchFileNameMax %u) stub!\n",
hwnd, lpszFileName, cchFileNameMax);
return 0;
}
/******************************************************************************
* GetWindowModuleFileNameW (USER32.@)
*/
UINT WINAPI GetWindowModuleFileNameW( HWND hwnd, LPSTR lpszFileName, UINT cchFileNameMax)
{
FIXME("GetWindowModuleFileNameW(hwnd 0x%x, lpszFileName %p, cchFileNameMax %u) stub!\n",
hwnd, lpszFileName, cchFileNameMax);
return 0;
}
Reference in New Issue View Git Blame Copy Permalink