Sweden-Number/dlls/user32/user_main.c

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/*
* USER initialization code
*
* Copyright 2000 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "controls.h"
#include "user_private.h"
#include "win.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(graphics);
#define DESKTOP_ALL_ACCESS 0x01ff
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WORD USER_HeapSel = 0; /* USER heap selector */
HMODULE user32_module = 0;
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static SYSLEVEL USER_SysLevel;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &USER_SysLevel.crst,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": USER_SysLevel") }
};
static SYSLEVEL USER_SysLevel = { { &critsect_debug, -1, 0, 0, 0, 0 }, 2 };
static HPALETTE (WINAPI *pfnGDISelectPalette)( HDC hdc, HPALETTE hpal, WORD bkgnd );
static UINT (WINAPI *pfnGDIRealizePalette)( HDC hdc );
static HPALETTE hPrimaryPalette;
static DWORD exiting_thread_id;
extern void WDML_NotifyThreadDetach(void);
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/***********************************************************************
* USER_Lock
*/
void USER_Lock(void)
{
_EnterSysLevel( &USER_SysLevel );
}
/***********************************************************************
* USER_Unlock
*/
void USER_Unlock(void)
{
_LeaveSysLevel( &USER_SysLevel );
}
/***********************************************************************
* USER_CheckNotLock
*
* Make sure that we don't hold the user lock.
*/
void USER_CheckNotLock(void)
{
_CheckNotSysLevel( &USER_SysLevel );
}
/***********************************************************************
* UserSelectPalette (Not a Windows API)
*/
static HPALETTE WINAPI UserSelectPalette( HDC hDC, HPALETTE hPal, BOOL bForceBackground )
{
WORD wBkgPalette = 1;
if (!bForceBackground && (hPal != GetStockObject(DEFAULT_PALETTE)))
{
HWND hwnd = WindowFromDC( hDC );
if (hwnd)
{
HWND hForeground = GetForegroundWindow();
/* set primary palette if it's related to current active */
if (hForeground == hwnd || IsChild(hForeground,hwnd))
{
wBkgPalette = 0;
hPrimaryPalette = hPal;
}
}
}
return pfnGDISelectPalette( hDC, hPal, wBkgPalette);
}
/***********************************************************************
* UserRealizePalette (USER32.@)
*/
UINT WINAPI UserRealizePalette( HDC hDC )
{
UINT realized = pfnGDIRealizePalette( hDC );
/* do not send anything if no colors were changed */
if (realized && GetCurrentObject( hDC, OBJ_PAL ) == hPrimaryPalette)
{
/* send palette change notification */
HWND hWnd = WindowFromDC( hDC );
if (hWnd) SendMessageTimeoutW( HWND_BROADCAST, WM_PALETTECHANGED, (WPARAM)hWnd, 0,
SMTO_ABORTIFHUNG, 2000, NULL );
}
return realized;
}
/***********************************************************************
* palette_init
*
* Patch the function pointers in GDI for SelectPalette and RealizePalette
*/
static void palette_init(void)
{
void **ptr;
HMODULE module = GetModuleHandleA( "gdi32" );
if (!module)
{
ERR( "cannot get GDI32 handle\n" );
return;
}
if ((ptr = (void**)GetProcAddress( module, "pfnSelectPalette" )))
pfnGDISelectPalette = InterlockedExchangePointer( ptr, UserSelectPalette );
else ERR( "cannot find pfnSelectPalette in GDI32\n" );
if ((ptr = (void**)GetProcAddress( module, "pfnRealizePalette" )))
pfnGDIRealizePalette = InterlockedExchangePointer( ptr, UserRealizePalette );
else ERR( "cannot find pfnRealizePalette in GDI32\n" );
}
/***********************************************************************
* winstation_init
*
* Connect to the process window station and desktop.
*/
static void winstation_init(void)
{
static const WCHAR WinSta0[] = {'W','i','n','S','t','a','0',0};
static const WCHAR Default[] = {'D','e','f','a','u','l','t',0};
STARTUPINFOW info;
WCHAR *winstation = NULL, *desktop = NULL, *buffer = NULL;
HANDLE handle;
GetStartupInfoW( &info );
if (info.lpDesktop && *info.lpDesktop)
{
buffer = HeapAlloc( GetProcessHeap(), 0, (strlenW(info.lpDesktop) + 1) * sizeof(WCHAR) );
strcpyW( buffer, info.lpDesktop );
if ((desktop = strchrW( buffer, '\\' )))
{
*desktop++ = 0;
winstation = buffer;
}
else desktop = buffer;
}
/* set winstation if explicitly specified, or if we don't have one yet */
if (buffer || !GetProcessWindowStation())
{
handle = CreateWindowStationW( winstation ? winstation : WinSta0, 0, WINSTA_ALL_ACCESS, NULL );
if (handle) SetProcessWindowStation( handle );
}
if (buffer || !GetThreadDesktop( GetCurrentThreadId() ))
{
handle = CreateDesktopW( desktop ? desktop : Default, NULL, NULL, 0, DESKTOP_ALL_ACCESS, NULL );
if (handle) SetThreadDesktop( handle );
}
HeapFree( GetProcessHeap(), 0, buffer );
}
/***********************************************************************
* USER initialisation routine
*/
static BOOL process_attach(void)
{
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HINSTANCE16 instance;
/* Create USER heap */
if ((instance = LoadLibrary16( "USER.EXE" )) >= 32) USER_HeapSel = instance | 7;
else
{
USER_HeapSel = GlobalAlloc16( GMEM_FIXED, 65536 );
LocalInit16( USER_HeapSel, 32, 65534 );
}
/* some Win9x dlls expect keyboard to be loaded */
if (GetVersion() & 0x80000000) LoadLibrary16( "keyboard.drv" );
winstation_init();
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/* Initialize system colors and metrics */
SYSPARAMS_Init();
/* Setup palette function pointers */
palette_init();
/* Initialize built-in window classes */
CLASS_RegisterBuiltinClasses();
/* Initialize message spying */
if (!SPY_Init()) return FALSE;
return TRUE;
}
/**********************************************************************
* USER_IsExitingThread
*/
BOOL USER_IsExitingThread( DWORD tid )
{
return (tid == exiting_thread_id);
}
/**********************************************************************
* thread_detach
*/
static void thread_detach(void)
{
exiting_thread_id = GetCurrentThreadId();
WDML_NotifyThreadDetach();
WIN_DestroyThreadWindows( get_user_thread_info()->desktop );
CloseHandle( get_user_thread_info()->server_queue );
exiting_thread_id = 0;
}
/***********************************************************************
* UserClientDllInitialize (USER32.@)
*
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* USER dll initialisation routine (exported as UserClientDllInitialize for compatibility).
*/
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BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
{
BOOL ret = TRUE;
switch(reason)
{
case DLL_PROCESS_ATTACH:
user32_module = inst;
ret = process_attach();
break;
case DLL_THREAD_DETACH:
thread_detach();
break;
case DLL_PROCESS_DETACH:
USER_unload_driver();
break;
}
return ret;
}
/***********************************************************************
* ExitWindowsEx (USER32.@)
*/
BOOL WINAPI ExitWindowsEx( UINT flags, DWORD reason )
{
static const WCHAR winebootW[] = { '\\','w','i','n','e','b','o','o','t','.','e','x','e',0 };
static const WCHAR killW[] = { ' ','-','-','k','i','l','l',0 };
static const WCHAR end_sessionW[] = { ' ','-','-','e','n','d','-','s','e','s','s','i','o','n',0 };
static const WCHAR forceW[] = { ' ','-','-','f','o','r','c','e',0 };
static const WCHAR shutdownW[] = { ' ','-','-','s','h','u','t','d','o','w','n',0 };
WCHAR cmdline[MAX_PATH + 64];
PROCESS_INFORMATION pi;
STARTUPINFOW si;
GetSystemDirectoryW( cmdline, MAX_PATH );
lstrcatW( cmdline, winebootW );
if (flags & EWX_FORCE) lstrcatW( cmdline, killW );
else
{
lstrcatW( cmdline, end_sessionW );
if (flags & EWX_FORCEIFHUNG) lstrcatW( cmdline, forceW );
}
if (!(flags & EWX_REBOOT)) lstrcatW( cmdline, shutdownW );
memset( &si, 0, sizeof si );
si.cb = sizeof si;
if (!CreateProcessW( NULL, cmdline, NULL, NULL, FALSE, DETACHED_PROCESS, NULL, NULL, &si, &pi ))
{
ERR( "Failed to run %s\n", debugstr_w(cmdline) );
return FALSE;
}
CloseHandle( pi.hProcess );
CloseHandle( pi.hThread );
return TRUE;
}