src/video/windib/SDL_dibevents.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 01 Feb 2006 06:32:25 +0000
changeset 1312 c9b51268668f
parent 1303 52b5afd7ecee
child 1330 450721ad5436
permissions -rw-r--r--
Updated copyright information and removed rcs id lines (problematic in branch merges)
I batch edited these files, so please let me know if I've accidentally removed anybody's
credit here.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <windows.h>
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#include "SDL_events.h"
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#include "SDL_error.h"
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#include "SDL_syswm.h"
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#include "SDL_sysevents.h"
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#include "SDL_events_c.h"
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#include "SDL_lowvideo.h"
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#include "SDL_dibvideo.h"
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#include "SDL_vkeys.h"
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#ifndef WM_APP
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#define WM_APP	0x8000
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#endif
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#ifdef _WIN32_WCE
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#define NO_GETKEYBOARDSTATE
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#endif
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/* The translation table from a Microsoft VK keysym to a SDL keysym */
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static SDLKey VK_keymap[SDLK_LAST];
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static SDL_keysym *TranslateKey(UINT vkey, UINT scancode, SDL_keysym *keysym, int pressed);
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/* Masks for processing the windows KEYDOWN and KEYUP messages */
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#define REPEATED_KEYMASK	(1<<30)
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#define EXTENDED_KEYMASK	(1<<24)
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/* DJM: If the user setup the window for us, we want to save his window proc,
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   and give him a chance to handle some messages. */
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#ifdef STRICT
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#define WNDPROCTYPE	WNDPROC
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#else
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#define WNDPROCTYPE	FARPROC
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#endif
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static WNDPROCTYPE userWindowProc = NULL;
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#ifdef _WIN32_WCE
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WPARAM rotateKey(WPARAM key,SDL_ScreenOrientation direction) 
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{
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	if (direction != SDL_ORIENTATION_LEFT)
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		return key;
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	switch (key) {
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		case 0x26: /* up */
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			return 0x27;
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		case 0x27: /* right */
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			return 0x28;
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		case 0x28: /* down */
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			return 0x25;
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		case 0x25: /* left */
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			return 0x26;
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	}
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	return key;
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}
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#endif 
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/* The main Win32 event handler */
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LONG
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 DIB_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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	extern int posted;
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	switch (msg) {
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		case WM_SYSKEYDOWN:
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		case WM_KEYDOWN: {
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			SDL_keysym keysym;
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#ifdef _WIN32_WCE
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			// Drop GAPI artefacts
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			if (wParam == 0x84 || wParam == 0x5B)
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				return 0;
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			// Rotate key if necessary
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			if (this->hidden->orientation != SDL_ORIENTATION_UP)
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				wParam = rotateKey(wParam, this->hidden->orientation);	
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#endif 
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			/* Ignore repeated keys */
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			if ( lParam&REPEATED_KEYMASK ) {
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				return(0);
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			}
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			switch (wParam) {
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				case VK_CONTROL:
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					if ( lParam&EXTENDED_KEYMASK )
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						wParam = VK_RCONTROL;
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					else
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						wParam = VK_LCONTROL;
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					break;
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				case VK_SHIFT:
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					/* EXTENDED trick doesn't work here */
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					{
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					Uint8 *state = SDL_GetKeyState(NULL);
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					if (state[SDLK_LSHIFT] == SDL_RELEASED && (GetKeyState(VK_LSHIFT) & 0x8000)) {
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						wParam = VK_LSHIFT;
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					} else if (state[SDLK_RSHIFT] == SDL_RELEASED && (GetKeyState(VK_RSHIFT) & 0x8000)) {
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						wParam = VK_RSHIFT;
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					} else {
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						/* Probably a key repeat */
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						return(0);
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					}
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					}
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					break;
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				case VK_MENU:
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					if ( lParam&EXTENDED_KEYMASK )
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						wParam = VK_RMENU;
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					else
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						wParam = VK_LMENU;
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					break;
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			}
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#ifdef NO_GETKEYBOARDSTATE
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			/* this is the workaround for the missing ToAscii() and ToUnicode() in CE (not necessary at KEYUP!) */
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			if ( SDL_TranslateUNICODE ) {
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				MSG m;
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				m.hwnd = hwnd;
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				m.message = msg;
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				m.wParam = wParam;
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				m.lParam = lParam;
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				m.time = 0;
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				if ( TranslateMessage(&m) && PeekMessage(&m, hwnd, 0, WM_USER, PM_NOREMOVE) && (m.message == WM_CHAR) ) {
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					GetMessage(&m, hwnd, 0, WM_USER);
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			    		wParam = m.wParam;
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				}
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			}
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#endif /* NO_GETKEYBOARDSTATE */
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			posted = SDL_PrivateKeyboard(SDL_PRESSED,
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				TranslateKey(wParam,HIWORD(lParam),&keysym,1));
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		}
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		return(0);
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		case WM_SYSKEYUP:
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		case WM_KEYUP: {
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			SDL_keysym keysym;
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#ifdef _WIN32_WCE
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			// Drop GAPI artefacts
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			if (wParam == 0x84 || wParam == 0x5B)
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				return 0;
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			// Rotate key if necessary
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			if (this->hidden->orientation != SDL_ORIENTATION_UP)
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				wParam = rotateKey(wParam, this->hidden->orientation);	
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#endif
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			switch (wParam) {
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				case VK_CONTROL:
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					if ( lParam&EXTENDED_KEYMASK )
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						wParam = VK_RCONTROL;
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					else
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						wParam = VK_LCONTROL;
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					break;
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				case VK_SHIFT:
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					/* EXTENDED trick doesn't work here */
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					{
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					Uint8 *state = SDL_GetKeyState(NULL);
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					if (state[SDLK_LSHIFT] == SDL_PRESSED && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
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						wParam = VK_LSHIFT;
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					} else if (state[SDLK_RSHIFT] == SDL_PRESSED && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
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						wParam = VK_RSHIFT;
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					} else {
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						/* Probably a key repeat */
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						return(0);
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					}
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					}
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					break;
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				case VK_MENU:
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					if ( lParam&EXTENDED_KEYMASK )
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						wParam = VK_RMENU;
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					else
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						wParam = VK_LMENU;
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					break;
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			}
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			posted = SDL_PrivateKeyboard(SDL_RELEASED,
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				TranslateKey(wParam,HIWORD(lParam),&keysym,0));
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		}
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		return(0);
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#if defined(SC_SCREENSAVE) && defined(SC_MONITORPOWER)
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		case WM_SYSCOMMAND: {
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			if ((wParam&0xFFF0)==SC_SCREENSAVE ||
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				(wParam&0xFFF0)==SC_MONITORPOWER)
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					return(0);
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		}
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		/* Fall through to default processing */
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#endif /* SC_SCREENSAVE && SC_MONITORPOWER */
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		default: {
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			/* Only post the event if we're watching for it */
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			if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
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			        SDL_SysWMmsg wmmsg;
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				SDL_VERSION(&wmmsg.version);
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				wmmsg.hwnd = hwnd;
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				wmmsg.msg = msg;
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				wmmsg.wParam = wParam;
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				wmmsg.lParam = lParam;
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				posted = SDL_PrivateSysWMEvent(&wmmsg);
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			/* DJM: If the user isn't watching for private
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				messages in her SDL event loop, then pass it
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				along to any win32 specific window proc.
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			 */
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			} else if (userWindowProc) {
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				return CallWindowProc(userWindowProc, hwnd, msg, wParam, lParam);
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			}
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		}
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		break;
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	}
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	return(DefWindowProc(hwnd, msg, wParam, lParam));
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}
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void DIB_PumpEvents(_THIS)
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{
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	MSG msg;
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	while ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {
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		if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {
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			DispatchMessage(&msg);
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		}
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	}
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}
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void DIB_InitOSKeymap(_THIS)
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{
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	int i;
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	/* Map the VK keysyms */
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	for ( i=0; i<SDL_TABLESIZE(VK_keymap); ++i )
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		VK_keymap[i] = SDLK_UNKNOWN;
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	VK_keymap[VK_BACK] = SDLK_BACKSPACE;
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	VK_keymap[VK_TAB] = SDLK_TAB;
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	VK_keymap[VK_CLEAR] = SDLK_CLEAR;
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	VK_keymap[VK_RETURN] = SDLK_RETURN;
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	VK_keymap[VK_PAUSE] = SDLK_PAUSE;
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	VK_keymap[VK_ESCAPE] = SDLK_ESCAPE;
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	VK_keymap[VK_SPACE] = SDLK_SPACE;
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	VK_keymap[VK_APOSTROPHE] = SDLK_QUOTE;
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	VK_keymap[VK_COMMA] = SDLK_COMMA;
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	VK_keymap[VK_MINUS] = SDLK_MINUS;
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	VK_keymap[VK_PERIOD] = SDLK_PERIOD;
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	VK_keymap[VK_SLASH] = SDLK_SLASH;
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	VK_keymap[VK_0] = SDLK_0;
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	VK_keymap[VK_1] = SDLK_1;
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	VK_keymap[VK_2] = SDLK_2;
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	VK_keymap[VK_3] = SDLK_3;
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	VK_keymap[VK_4] = SDLK_4;
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	VK_keymap[VK_5] = SDLK_5;
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	VK_keymap[VK_6] = SDLK_6;
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	VK_keymap[VK_7] = SDLK_7;
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	VK_keymap[VK_8] = SDLK_8;
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	VK_keymap[VK_9] = SDLK_9;
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	VK_keymap[VK_SEMICOLON] = SDLK_SEMICOLON;
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	VK_keymap[VK_EQUALS] = SDLK_EQUALS;
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	VK_keymap[VK_LBRACKET] = SDLK_LEFTBRACKET;
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	VK_keymap[VK_BACKSLASH] = SDLK_BACKSLASH;
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	VK_keymap[VK_OEM_102] = SDLK_LESS;
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	VK_keymap[VK_RBRACKET] = SDLK_RIGHTBRACKET;
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	VK_keymap[VK_GRAVE] = SDLK_BACKQUOTE;
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	VK_keymap[VK_BACKTICK] = SDLK_BACKQUOTE;
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	VK_keymap[VK_A] = SDLK_a;
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	VK_keymap[VK_B] = SDLK_b;
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	VK_keymap[VK_C] = SDLK_c;
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	VK_keymap[VK_D] = SDLK_d;
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	VK_keymap[VK_E] = SDLK_e;
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	VK_keymap[VK_F] = SDLK_f;
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	VK_keymap[VK_G] = SDLK_g;
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	VK_keymap[VK_H] = SDLK_h;
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	VK_keymap[VK_I] = SDLK_i;
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	VK_keymap[VK_J] = SDLK_j;
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	VK_keymap[VK_K] = SDLK_k;
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	VK_keymap[VK_L] = SDLK_l;
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	VK_keymap[VK_M] = SDLK_m;
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	VK_keymap[VK_N] = SDLK_n;
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	VK_keymap[VK_O] = SDLK_o;
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	VK_keymap[VK_P] = SDLK_p;
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	VK_keymap[VK_Q] = SDLK_q;
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	VK_keymap[VK_R] = SDLK_r;
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	VK_keymap[VK_S] = SDLK_s;
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	VK_keymap[VK_T] = SDLK_t;
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	VK_keymap[VK_U] = SDLK_u;
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	VK_keymap[VK_V] = SDLK_v;
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	VK_keymap[VK_W] = SDLK_w;
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	VK_keymap[VK_X] = SDLK_x;
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	VK_keymap[VK_Y] = SDLK_y;
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	VK_keymap[VK_Z] = SDLK_z;
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	VK_keymap[VK_DELETE] = SDLK_DELETE;
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	VK_keymap[VK_NUMPAD0] = SDLK_KP0;
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	VK_keymap[VK_NUMPAD1] = SDLK_KP1;
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	VK_keymap[VK_NUMPAD2] = SDLK_KP2;
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	VK_keymap[VK_NUMPAD3] = SDLK_KP3;
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	VK_keymap[VK_NUMPAD4] = SDLK_KP4;
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	VK_keymap[VK_NUMPAD5] = SDLK_KP5;
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	VK_keymap[VK_NUMPAD6] = SDLK_KP6;
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	VK_keymap[VK_NUMPAD7] = SDLK_KP7;
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	VK_keymap[VK_NUMPAD8] = SDLK_KP8;
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	VK_keymap[VK_NUMPAD9] = SDLK_KP9;
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	VK_keymap[VK_DECIMAL] = SDLK_KP_PERIOD;
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	VK_keymap[VK_DIVIDE] = SDLK_KP_DIVIDE;
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	VK_keymap[VK_MULTIPLY] = SDLK_KP_MULTIPLY;
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	VK_keymap[VK_SUBTRACT] = SDLK_KP_MINUS;
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	VK_keymap[VK_ADD] = SDLK_KP_PLUS;
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   333
	VK_keymap[VK_UP] = SDLK_UP;
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   334
	VK_keymap[VK_DOWN] = SDLK_DOWN;
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   335
	VK_keymap[VK_RIGHT] = SDLK_RIGHT;
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   336
	VK_keymap[VK_LEFT] = SDLK_LEFT;
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   337
	VK_keymap[VK_INSERT] = SDLK_INSERT;
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   338
	VK_keymap[VK_HOME] = SDLK_HOME;
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   339
	VK_keymap[VK_END] = SDLK_END;
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   340
	VK_keymap[VK_PRIOR] = SDLK_PAGEUP;
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   341
	VK_keymap[VK_NEXT] = SDLK_PAGEDOWN;
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   342
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   343
	VK_keymap[VK_F1] = SDLK_F1;
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   344
	VK_keymap[VK_F2] = SDLK_F2;
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   345
	VK_keymap[VK_F3] = SDLK_F3;
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   346
	VK_keymap[VK_F4] = SDLK_F4;
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   347
	VK_keymap[VK_F5] = SDLK_F5;
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   348
	VK_keymap[VK_F6] = SDLK_F6;
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   349
	VK_keymap[VK_F7] = SDLK_F7;
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   350
	VK_keymap[VK_F8] = SDLK_F8;
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   351
	VK_keymap[VK_F9] = SDLK_F9;
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   352
	VK_keymap[VK_F10] = SDLK_F10;
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   353
	VK_keymap[VK_F11] = SDLK_F11;
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   354
	VK_keymap[VK_F12] = SDLK_F12;
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   355
	VK_keymap[VK_F13] = SDLK_F13;
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   356
	VK_keymap[VK_F14] = SDLK_F14;
slouken@0
   357
	VK_keymap[VK_F15] = SDLK_F15;
slouken@0
   358
slouken@0
   359
	VK_keymap[VK_NUMLOCK] = SDLK_NUMLOCK;
slouken@0
   360
	VK_keymap[VK_CAPITAL] = SDLK_CAPSLOCK;
slouken@0
   361
	VK_keymap[VK_SCROLL] = SDLK_SCROLLOCK;
slouken@0
   362
	VK_keymap[VK_RSHIFT] = SDLK_RSHIFT;
slouken@0
   363
	VK_keymap[VK_LSHIFT] = SDLK_LSHIFT;
slouken@0
   364
	VK_keymap[VK_RCONTROL] = SDLK_RCTRL;
slouken@0
   365
	VK_keymap[VK_LCONTROL] = SDLK_LCTRL;
slouken@0
   366
	VK_keymap[VK_RMENU] = SDLK_RALT;
slouken@0
   367
	VK_keymap[VK_LMENU] = SDLK_LALT;
slouken@0
   368
	VK_keymap[VK_RWIN] = SDLK_RSUPER;
slouken@0
   369
	VK_keymap[VK_LWIN] = SDLK_LSUPER;
slouken@0
   370
slouken@0
   371
	VK_keymap[VK_HELP] = SDLK_HELP;
slouken@0
   372
#ifdef VK_PRINT
slouken@0
   373
	VK_keymap[VK_PRINT] = SDLK_PRINT;
slouken@0
   374
#endif
slouken@0
   375
	VK_keymap[VK_SNAPSHOT] = SDLK_PRINT;
slouken@0
   376
	VK_keymap[VK_CANCEL] = SDLK_BREAK;
slouken@0
   377
	VK_keymap[VK_APPS] = SDLK_MENU;
slouken@0
   378
}
slouken@0
   379
slouken@0
   380
static SDL_keysym *TranslateKey(UINT vkey, UINT scancode, SDL_keysym *keysym, int pressed)
slouken@0
   381
{
slouken@0
   382
	/* Set the keysym information */
slouken@0
   383
	keysym->scancode = (unsigned char) scancode;
slouken@0
   384
	keysym->sym = VK_keymap[vkey];
slouken@0
   385
	keysym->mod = KMOD_NONE;
slouken@0
   386
	keysym->unicode = 0;
slouken@1253
   387
	if ( pressed && SDL_TranslateUNICODE ) {
slouken@0
   388
#ifdef NO_GETKEYBOARDSTATE
slouken@0
   389
		/* Uh oh, better hope the vkey is close enough.. */
slouken@0
   390
		keysym->unicode = vkey;
slouken@0
   391
#else
slouken@1253
   392
		BYTE	keystate[256];
slouken@1253
   393
		Uint16	wchars[2];
slouken@0
   394
slouken@0
   395
		GetKeyboardState(keystate);
slouken@1253
   396
		if (SDL_ToUnicode(vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) == 1)
slouken@1253
   397
		{
slouken@1253
   398
			keysym->unicode = wchars[0];
slouken@0
   399
		}
slouken@0
   400
#endif /* NO_GETKEYBOARDSTATE */
slouken@0
   401
	}
slouken@0
   402
	return(keysym);
slouken@0
   403
}
slouken@0
   404
slouken@0
   405
int DIB_CreateWindow(_THIS)
slouken@0
   406
{
slouken@1280
   407
	char *windowid = getenv("SDL_WINDOWID");
icculus@1152
   408
slouken@1288
   409
	SDL_RegisterApp(NULL, 0, 0);
slouken@1280
   410
slouken@1280
   411
	SDL_windowid = (windowid != NULL);
slouken@0
   412
	if ( SDL_windowid ) {
icculus@1152
   413
#if defined(_WIN32_WCE) && (_WIN32_WCE < 300)
slouken@1280
   414
		/* wince 2.1 does not have strtol */
slouken@1280
   415
		wchar_t *windowid_t = malloc((strlen(windowid) + 1) * sizeof(wchar_t));
slouken@1280
   416
		MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, windowid, -1, windowid_t, strlen(windowid) + 1);
slouken@1280
   417
		SDL_Window = (HWND)wcstol(windowid_t, NULL, 0);
slouken@1280
   418
		free(windowid_t);
icculus@1152
   419
#else
slouken@1280
   420
		SDL_Window = (HWND)strtol(windowid, NULL, 0);
icculus@1152
   421
#endif
slouken@974
   422
		if ( SDL_Window == NULL ) {
slouken@974
   423
			SDL_SetError("Couldn't get user specified window");
slouken@974
   424
			return(-1);
slouken@974
   425
		}
slouken@974
   426
slouken@974
   427
		/* DJM: we want all event's for the user specified
slouken@974
   428
			window to be handled by SDL.
slouken@974
   429
		 */
slouken@1303
   430
		userWindowProc = (WNDPROCTYPE)GetWindowLong(SDL_Window, GWL_WNDPROC);
slouken@974
   431
		SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)WinMessage);
slouken@0
   432
	} else {
slouken@0
   433
		SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
slouken@0
   434
                        (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX),
slouken@833
   435
                        CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, NULL, NULL, SDL_Instance, NULL);
slouken@0
   436
		if ( SDL_Window == NULL ) {
slouken@0
   437
			SDL_SetError("Couldn't create window");
slouken@0
   438
			return(-1);
slouken@0
   439
		}
slouken@0
   440
		ShowWindow(SDL_Window, SW_HIDE);
slouken@0
   441
	}
slouken@0
   442
	return(0);
slouken@0
   443
}
slouken@0
   444
slouken@0
   445
void DIB_DestroyWindow(_THIS)
slouken@0
   446
{
slouken@974
   447
	if ( SDL_windowid ) {
slouken@974
   448
		SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)userWindowProc);
slouken@974
   449
	} else {
slouken@0
   450
		DestroyWindow(SDL_Window);
slouken@0
   451
	}
slouken@1288
   452
	SDL_UnregisterApp();
slouken@0
   453
}