2 * freeglut_window_mswin.c
4 * The Windows-specific mouse cursor related stuff.
6 * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
7 * Written by John F. Fay, <fayjf@sourceforge.net>
8 * Creation date: Sun Jan 22, 2012
10 * Permission is hereby granted, free of charge, to any person obtaining a
11 * copy of this software and associated documentation files (the "Software"),
12 * to deal in the Software without restriction, including without limitation
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 * and/or sell copies of the Software, and to permit persons to whom the
15 * Software is furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included
18 * in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #define FREEGLUT_BUILDING_LIB
29 #include <GL/freeglut.h>
30 #include "../Common/freeglut_internal.h"
33 /* The following include file is available from SGI but is not standard:
34 * #include <GL/wglext.h>
35 * So we copy the necessary parts out of it.
36 * XXX: should local definitions for extensions be put in a separate include file?
38 typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
40 typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
42 #define WGL_DRAW_TO_WINDOW_ARB 0x2001
43 #define WGL_ACCELERATION_ARB 0x2003
44 #define WGL_SUPPORT_OPENGL_ARB 0x2010
45 #define WGL_DOUBLE_BUFFER_ARB 0x2011
46 #define WGL_COLOR_BITS_ARB 0x2014
47 #define WGL_ALPHA_BITS_ARB 0x201B
48 #define WGL_DEPTH_BITS_ARB 0x2022
49 #define WGL_STENCIL_BITS_ARB 0x2023
50 #define WGL_FULL_ACCELERATION_ARB 0x2027
52 #define WGL_SAMPLE_BUFFERS_ARB 0x2041
53 #define WGL_SAMPLES_ARB 0x2042
55 #define WGL_TYPE_RGBA_FLOAT_ARB 0x21A0
57 #define WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20A9
59 #ifndef WGL_ARB_create_context
60 #define WGL_ARB_create_context 1
61 #ifdef WGL_WGLEXT_PROTOTYPES
62 extern HGLRC WINAPI wglCreateContextAttribsARB (HDC, HGLRC, const int *);
63 #endif /* WGL_WGLEXT_PROTOTYPES */
64 typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShareContext, const int *attribList);
66 #define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
67 #define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
68 #define WGL_CONTEXT_LAYER_PLANE_ARB 0x2093
69 #define WGL_CONTEXT_FLAGS_ARB 0x2094
70 #define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126
72 #define WGL_CONTEXT_DEBUG_BIT_ARB 0x0001
73 #define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
75 #define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
76 #define WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002
78 #define ERROR_INVALID_VERSION_ARB 0x2095
79 #define ERROR_INVALID_PROFILE_ARB 0x2096
81 /* End of copying the necessary parts out of it. */
84 typedef BOOL (WINAPI *pRegisterTouchWindow)(HWND,ULONG);
85 static pRegisterTouchWindow fghRegisterTouchWindow = (pRegisterTouchWindow)0xDEADBEEF;
89 * Helper functions for getting client area from the window rect
90 * and the window rect from the client area given the style of the window
91 * (or a valid window pointer from which the style can be queried).
93 extern void fghGetBorderWidth(const DWORD windowStyle, int* xBorderWidth, int* yBorderWidth);
97 * Setup the pixel format for a Win32 window
100 #if defined(_WIN32_WCE)
101 static wchar_t* fghWstrFromStr(const char* str)
103 int i,len=strlen(str);
104 wchar_t* wstr = (wchar_t*)malloc(2*len+2);
110 #endif /* defined(_WIN32_WCE) */
113 static void fghFillContextAttributes( int *attributes ) {
114 int where = 0, contextFlags, contextProfile;
116 if ( !fghIsLegacyContextVersionRequested() ) {
117 ATTRIB_VAL( WGL_CONTEXT_MAJOR_VERSION_ARB, fgState.MajorVersion );
118 ATTRIB_VAL( WGL_CONTEXT_MINOR_VERSION_ARB, fgState.MinorVersion );
122 fghMapBit( fgState.ContextFlags, GLUT_DEBUG, WGL_CONTEXT_DEBUG_BIT_ARB ) |
123 fghMapBit( fgState.ContextFlags, GLUT_FORWARD_COMPATIBLE, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB );
124 if ( contextFlags != 0 ) {
125 ATTRIB_VAL( WGL_CONTEXT_FLAGS_ARB, contextFlags );
129 fghMapBit( fgState.ContextProfile, GLUT_CORE_PROFILE, WGL_CONTEXT_CORE_PROFILE_BIT_ARB ) |
130 fghMapBit( fgState.ContextProfile, GLUT_COMPATIBILITY_PROFILE, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB );
131 if ( contextProfile != 0 ) {
132 ATTRIB_VAL( WGL_CONTEXT_PROFILE_MASK_ARB, contextProfile );
138 static int fghIsExtensionSupported( HDC hdc, const char *extension ) {
139 const char *pWglExtString;
140 PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetEntensionsStringARB =
141 (PFNWGLGETEXTENSIONSSTRINGARBPROC) wglGetProcAddress("wglGetExtensionsStringARB");
142 if ( wglGetEntensionsStringARB == NULL )
146 pWglExtString = wglGetEntensionsStringARB( hdc );
147 return ( pWglExtString != NULL ) && ( strstr(pWglExtString, extension) != NULL );
150 void fgNewWGLCreateContext( SFG_Window* window )
154 PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
156 /* If nothing fancy has been required, leave the context as it is */
157 if ( fghIsLegacyContextRequested() )
162 wglMakeCurrent( window->Window.pContext.Device, window->Window.Context );
164 if ( !fghIsExtensionSupported( window->Window.pContext.Device, "WGL_ARB_create_context" ) )
169 /* new context creation */
170 fghFillContextAttributes( attributes );
172 wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress( "wglCreateContextAttribsARB" );
173 if ( wglCreateContextAttribsARB == NULL )
175 fgError( "wglCreateContextAttribsARB not found" );
178 context = wglCreateContextAttribsARB( window->Window.pContext.Device, 0, attributes );
179 if ( context == NULL )
181 fghContextCreationError();
184 wglMakeCurrent( NULL, NULL );
185 wglDeleteContext( window->Window.Context );
186 window->Window.Context = context;
189 #if !defined(_WIN32_WCE)
191 static void fghFillPFD( PIXELFORMATDESCRIPTOR *ppfd, HDC hdc, unsigned char layer_type )
193 int flags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
194 if ( fgState.DisplayMode & GLUT_DOUBLE ) {
195 flags |= PFD_DOUBLEBUFFER;
197 if ( fgState.DisplayMode & GLUT_STEREO ) {
201 #if defined(_MSC_VER)
202 #pragma message( "fgSetupPixelFormat(): there is still some work to do here!" )
205 /* Specify which pixel format do we opt for... */
206 ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR);
208 ppfd->dwFlags = flags;
210 if( fgState.DisplayMode & GLUT_INDEX ) {
211 ppfd->iPixelType = PFD_TYPE_COLORINDEX;
213 ppfd->cGreenBits = 0;
215 ppfd->cAlphaBits = 0;
217 ppfd->iPixelType = PFD_TYPE_RGBA;
219 ppfd->cGreenBits = 8;
221 ppfd->cAlphaBits = ( fgState.DisplayMode & GLUT_ALPHA ) ? 8 : 0;
224 ppfd->cColorBits = 24;
226 ppfd->cGreenShift = 0;
227 ppfd->cBlueShift = 0;
228 ppfd->cAlphaShift = 0;
229 ppfd->cAccumBits = ( fgState.DisplayMode & GLUT_ACCUM ) ? 1 : 0;
230 ppfd->cAccumRedBits = 0;
231 ppfd->cAccumGreenBits = 0;
232 ppfd->cAccumBlueBits = 0;
233 ppfd->cAccumAlphaBits = 0;
235 /* Hmmm, or 32/0 instead of 24/8? */
236 ppfd->cDepthBits = 24;
237 ppfd->cStencilBits = 8;
239 ppfd->cAuxBuffers = fghNumberOfAuxBuffersRequested();
240 ppfd->iLayerType = layer_type;
242 ppfd->dwLayerMask = 0;
243 ppfd->dwVisibleMask = 0;
244 ppfd->dwDamageMask = 0;
246 ppfd->cColorBits = (BYTE) GetDeviceCaps( hdc, BITSPIXEL );
249 static void fghFillPixelFormatAttributes( int *attributes, const PIXELFORMATDESCRIPTOR *ppfd )
253 ATTRIB_VAL( WGL_DRAW_TO_WINDOW_ARB, GL_TRUE );
254 ATTRIB_VAL( WGL_SUPPORT_OPENGL_ARB, GL_TRUE );
255 ATTRIB_VAL( WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB );
257 ATTRIB_VAL( WGL_COLOR_BITS_ARB, ppfd->cColorBits );
258 ATTRIB_VAL( WGL_ALPHA_BITS_ARB, ppfd->cAlphaBits );
259 ATTRIB_VAL( WGL_DEPTH_BITS_ARB, ppfd->cDepthBits );
260 ATTRIB_VAL( WGL_STENCIL_BITS_ARB, ppfd->cStencilBits );
262 ATTRIB_VAL( WGL_DOUBLE_BUFFER_ARB, ( fgState.DisplayMode & GLUT_DOUBLE ) != 0 );
264 if ( fgState.DisplayMode & GLUT_SRGB ) {
265 ATTRIB_VAL( WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB, TRUE );
268 ATTRIB_VAL( WGL_SAMPLE_BUFFERS_ARB, GL_TRUE );
269 ATTRIB_VAL( WGL_SAMPLES_ARB, fgState.SampleNumber );
274 GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly,
275 unsigned char layer_type )
277 #if defined(_WIN32_WCE)
280 PIXELFORMATDESCRIPTOR pfd;
281 PIXELFORMATDESCRIPTOR* ppfd = &pfd;
287 current_hDC = CreateDC(TEXT("DISPLAY"), NULL ,NULL ,NULL);
289 current_hDC = window->Window.pContext.Device;
291 fghFillPFD( ppfd, current_hDC, layer_type );
292 pixelformat = ChoosePixelFormat( current_hDC, ppfd );
294 /* windows hack for multismapling/sRGB */
295 if ( ( fgState.DisplayMode & GLUT_MULTISAMPLE ) ||
296 ( fgState.DisplayMode & GLUT_SRGB ) )
298 HGLRC rc, rc_before=wglGetCurrentContext();
300 HDC hDC, hDC_before=wglGetCurrentDC();
303 /* create a dummy window */
304 ZeroMemory(&wndCls, sizeof(wndCls));
305 wndCls.lpfnWndProc = DefWindowProc;
306 wndCls.hInstance = fgDisplay.pDisplay.Instance;
307 wndCls.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
308 wndCls.lpszClassName = _T("FREEGLUT_dummy");
309 RegisterClass( &wndCls );
311 hWnd=CreateWindow(_T("FREEGLUT_dummy"), _T(""), WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW , 0,0,0,0, 0, 0, fgDisplay.pDisplay.Instance, 0 );
313 SetPixelFormat( hDC, pixelformat, ppfd );
315 rc = wglCreateContext( hDC );
316 wglMakeCurrent(hDC, rc);
318 if ( fghIsExtensionSupported( hDC, "WGL_ARB_multisample" ) )
320 PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARBProc =
321 (PFNWGLCHOOSEPIXELFORMATARBPROC) wglGetProcAddress("wglChoosePixelFormatARB");
322 if ( wglChoosePixelFormatARBProc )
327 float fAttributes[] = { 0, 0 };
329 fghFillPixelFormatAttributes( attributes, ppfd );
330 bValid = wglChoosePixelFormatARBProc(hDC, attributes, fAttributes, 1, &iPixelFormat, &numFormats);
332 if ( bValid && numFormats > 0 )
334 pixelformat = iPixelFormat;
339 wglMakeCurrent( hDC_before, rc_before);
340 wglDeleteContext(rc);
341 ReleaseDC(hWnd, hDC);
343 UnregisterClass(_T("FREEGLUT_dummy"), fgDisplay.pDisplay.Instance);
346 success = ( pixelformat != 0 ) && ( checkOnly || SetPixelFormat( current_hDC, pixelformat, ppfd ) );
349 DeleteDC(current_hDC);
352 #endif /* defined(_WIN32_WCE) */
357 void fgPlatformSetWindow ( SFG_Window *window )
359 if ( window != fgStructure.CurrentWindow )
361 if( fgStructure.CurrentWindow )
362 ReleaseDC( fgStructure.CurrentWindow->Window.Handle,
363 fgStructure.CurrentWindow->Window.pContext.Device );
367 window->Window.pContext.Device = GetDC( window->Window.Handle );
369 window->Window.pContext.Device,
370 window->Window.Context
378 /* Computes position of corners of window Rect (outer position including
379 * decorations) based on the provided client rect and based on the style
380 * of the window in question.
381 * If posIsOutside is set to true, the input client Rect is taken to follow
382 * freeGLUT's window specification convention in which the top-left corner
383 * is at the outside of the window, while the size
384 * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable
387 void fghComputeWindowRectFromClientArea_UseStyle( const DWORD windowStyle, RECT *clientRect, BOOL posIsOutside )
389 int xBorderWidth = 0, yBorderWidth = 0;
391 /* If window has title bar, correct rect for it */
392 if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */
394 clientRect->bottom += GetSystemMetrics( SM_CYCAPTION );
396 clientRect->top -= GetSystemMetrics( SM_CYCAPTION );
398 /* get width of window's borders (frame), correct rect for it.
399 * Note, borders can be of zero width if style does not specify borders
401 fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
404 clientRect->right += xBorderWidth * 2;
405 clientRect->bottom += yBorderWidth * 2;
409 clientRect->left -= xBorderWidth;
410 clientRect->right += xBorderWidth;
411 clientRect->top -= yBorderWidth;
412 clientRect->bottom += yBorderWidth;
416 /* Computes position of corners of window Rect (outer position including
417 * decorations) based on the provided client rect and based on the style
418 * of the window in question. If the window pointer or the window handle
419 * is NULL, a fully decorated window (caption and border) is assumed.
420 * Furthermore, if posIsOutside is set to true, the input client Rect is
421 * taken to follow freeGLUT's window specification convention in which the
422 * top-left corner is at the outside of the window, while the size
423 * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable
426 void fghComputeWindowRectFromClientArea_QueryWindow( const SFG_Window *window, RECT *clientRect, BOOL posIsOutside )
428 DWORD windowStyle = 0;
430 if (window && window->Window.Handle)
431 windowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE);
433 windowStyle = WS_OVERLAPPEDWINDOW;
435 fghComputeWindowRectFromClientArea_UseStyle(windowStyle, clientRect, posIsOutside);
438 /* Computes position of corners of client area (drawable area) of a window
439 * based on the provided window Rect (outer position including decorations)
440 * and based on the style of the window in question. If the window pointer
441 * or the window handle is NULL, a fully decorated window (caption and
442 * border) is assumed.
443 * Furthermore, if wantPosOutside is set to true, the output client Rect
444 * will follow freeGLUT's window specification convention in which the
445 * top-left corner is at the outside of the window, the size
446 * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable
449 void fghComputeClientAreaFromWindowRect( const SFG_Window *window, RECT *windowRect, BOOL wantPosOutside )
451 DWORD windowStyle = 0;
452 int xBorderWidth = 0, yBorderWidth = 0;
454 if (window && window->Window.Handle)
455 windowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE);
457 windowStyle = WS_OVERLAPPEDWINDOW;
459 /* If window has title bar, correct rect for it */
460 if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */
462 windowRect->bottom -= GetSystemMetrics( SM_CYCAPTION );
464 windowRect->top += GetSystemMetrics( SM_CYCAPTION );
466 /* get width of window's borders (frame), correct rect for it.
467 * Note, borders can be of zero width if style does not specify borders
469 fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
472 windowRect->right -= xBorderWidth * 2;
473 windowRect->bottom -= yBorderWidth * 2;
477 windowRect->left += xBorderWidth;
478 windowRect->right -= xBorderWidth;
479 windowRect->top += yBorderWidth;
480 windowRect->bottom -= yBorderWidth;
484 /* Gets the rect describing the client area (drawable area) of the
486 * Returns an empty rect if window pointer or window handle is NULL.
487 * If wantPosOutside is set to true, the output client Rect
488 * will follow freeGLUT's window specification convention in which the
489 * top-left corner is at the outside of the window, while the size
490 * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable
493 RECT fghGetClientArea( const SFG_Window *window, BOOL wantPosOutside )
495 RECT windowRect = {0,0,0,0};
497 freeglut_return_val_if_fail((window && window->Window.Handle),windowRect);
500 * call GetWindowRect()
501 * (this returns the pixel coordinates of the outside of the window)
503 GetWindowRect( window->Window.Handle, &windowRect );
505 /* Then correct the results */
506 fghComputeClientAreaFromWindowRect(window, &windowRect, wantPosOutside);
511 /* Returns the width of the window borders based on the window's style.
513 void fghGetBorderWidth(const DWORD windowStyle, int* xBorderWidth, int* yBorderWidth)
515 if (windowStyle & WS_THICKFRAME)
517 *xBorderWidth = GetSystemMetrics(SM_CXSIZEFRAME);
518 *yBorderWidth = GetSystemMetrics(SM_CYSIZEFRAME);
520 else if (windowStyle & WS_DLGFRAME)
522 *xBorderWidth = GetSystemMetrics(SM_CXFIXEDFRAME);
523 *yBorderWidth = GetSystemMetrics(SM_CYFIXEDFRAME);
540 static BOOL CALLBACK m_proc(HMONITOR mon,
545 m_proc_t *dp=(m_proc_t *)data;
548 info.cbSize=sizeof(info);
549 res=GetMonitorInfo(mon,(LPMONITORINFO)&info);
552 if( strcmp(dp->name,info.szDevice)==0 )
554 *(dp->x)=info.rcMonitor.left;
555 *(dp->y)=info.rcMonitor.top;
563 * this function returns the origin of the screen identified by
564 * fgDisplay.pDisplay.DisplayName, and 0 otherwise.
565 * This is used in fgOpenWindow to open the gamemode window on the screen
566 * identified by the -display command line argument. The function should
567 * not be called otherwise.
570 static void get_display_origin(int *xp,int *yp)
575 if( fgDisplay.pDisplay.DisplayName )
580 st.name=fgDisplay.pDisplay.DisplayName;
581 EnumDisplayMonitors(0,0,m_proc,(LPARAM)&st);
585 #pragma message( "-display parameter only works if compiled with WINVER >= 0x0500")
587 static void get_display_origin(int *xp,int *yp)
592 if( fgDisplay.pDisplay.DisplayName )
594 fgWarning( "for working -display support FreeGLUT must be compiled with WINVER >= 0x0500");
602 * Opens a window. Requires a SFG_Window object created and attached
603 * to the freeglut structure. OpenGL context is created here.
605 void fgPlatformOpenWindow( SFG_Window* window, const char* title,
606 GLboolean positionUse, int x, int y,
607 GLboolean sizeUse, int w, int h,
608 GLboolean gameMode, GLboolean isSubWindow )
616 /* Grab the window class we have registered on glutInit(): */
617 atom = GetClassInfo( fgDisplay.pDisplay.Instance, _T("FREEGLUT"), &wc );
618 FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Info Not Found",
621 /* Determine window style flags*/
624 FREEGLUT_INTERNAL_ERROR_EXIT ( window->Parent == NULL,
625 "Game mode being invoked on a subwindow",
629 * Set the window creation flags appropriately to make the window
632 flags = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
636 flags = WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
639 * There's a small difference between creating the top, child and
642 if ( window->IsMenu )
645 exFlags |= WS_EX_TOOLWINDOW;
647 #if defined(_WIN32_WCE)
648 /* no decorations for windows CE */
650 /* if this is not a subwindow (child), set its style based on the requested display mode */
651 else if( window->Parent == NULL )
652 if ( fgState.DisplayMode & GLUT_BORDERLESS )
654 /* no window decorations needed */
656 else if ( fgState.DisplayMode & GLUT_CAPTIONLESS )
657 /* only window decoration is a border, no title bar or buttons */
658 flags |= WS_DLGFRAME;
660 /* window decoration are a border, title bar and buttons.
661 * NB: we later query whether the window has a title bar or
662 * not by testing for the maximize button, as the test for
663 * WS_CAPTION can be true without the window having a title
664 * bar. This style WS_OVERLAPPEDWINDOW gives you a maximize
666 flags |= WS_OVERLAPPEDWINDOW;
669 /* subwindows always have no decoration, but are marked as a child window to the OS */
673 /* determine window size and position */
676 /* if in gamemode, query the origin of specified by the -display
677 * command line parameter (if any) and offset the upper-left corner
678 * of the window so we create the window on that screen.
679 * The -display argument doesn't do anything if not trying to enter
683 get_display_origin(&xoff,&yoff);
694 if( ! window->IsMenu )
699 else /* fail safe - Windows can make a window of size (0, 0) */
700 w = h = 300; /* default window size */
702 /* store requested client area width and height */
703 window->State.Width = w;
704 window->State.Height = h;
706 #if !defined(_WIN32_WCE) /* no decorations for windows CE */
711 * Update the window dimensions, taking the window decorations
712 * into account. FreeGLUT is to create the window with the
713 * topleft outside corner at (x,y) and with client area
715 * note: don't need to do this when w=h=CW_USEDEFAULT, so in the
716 * if( sizeUse ) here is convenient.
720 windowRect.right = x+w;
721 windowRect.bottom = y+h;
723 fghComputeWindowRectFromClientArea_UseStyle(flags,&windowRect,TRUE);
725 w = windowRect.right - windowRect.left;
726 h = windowRect.bottom- windowRect.top;
728 #endif /* !defined(_WIN32_WCE) */
730 #if defined(_WIN32_WCE)
732 wchar_t* wstr = fghWstrFromStr(title);
734 window->Window.Handle = CreateWindow(
737 WS_VISIBLE | WS_POPUP,
741 fgDisplay.pDisplay.Instance,
747 SHFullScreen(window->Window.Handle, SHFS_HIDESTARTICON);
748 SHFullScreen(window->Window.Handle, SHFS_HIDESIPBUTTON);
749 SHFullScreen(window->Window.Handle, SHFS_HIDETASKBAR);
750 MoveWindow(window->Window.Handle, 0, 0, 240, 320, TRUE);
751 ShowWindow(window->Window.Handle, SW_SHOW);
752 UpdateWindow(window->Window.Handle);
755 window->Window.Handle = CreateWindowEx(
761 (HWND) window->Parent == NULL ? NULL : window->Parent->Window.Handle,
763 fgDisplay.pDisplay.Instance,
766 #endif /* defined(_WIN32_WCE) */
768 if( !( window->Window.Handle ) )
769 fgError( "Failed to create a window (%s)!", title );
771 #if !defined(_WIN32_WCE)
772 /* Need to set requested style again, apparently Windows doesn't listen when requesting windows without title bar or borders */
773 SetWindowLong(window->Window.Handle, GWL_STYLE, flags);
774 SetWindowPos(window->Window.Handle, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
775 #endif /* defined(_WIN32_WCE) */
777 /* Make a menu window always on top - fix Feature Request 947118 */
778 if( window->IsMenu || gameMode )
780 window->Window.Handle,
783 SWP_NOMOVE | SWP_NOSIZE
786 /* Enable multitouch: additional flag TWF_FINETOUCH, TWF_WANTPALM */
788 if (fghRegisterTouchWindow == (pRegisterTouchWindow)0xDEADBEEF)
789 fghRegisterTouchWindow = (pRegisterTouchWindow)GetProcAddress(GetModuleHandle("user32"),"RegisterTouchWindow");
790 if (fghRegisterTouchWindow)
791 fghRegisterTouchWindow( window->Window.Handle, TWF_FINETOUCH | TWF_WANTPALM );
794 #if defined(_WIN32_WCE)
795 ShowWindow( window->Window.Handle, SW_SHOW );
797 ShowWindow( window->Window.Handle,
798 fgState.ForceIconic ? SW_SHOWMINIMIZED : SW_SHOW );
799 #endif /* defined(_WIN32_WCE) */
801 UpdateWindow( window->Window.Handle );
802 ShowCursor( TRUE ); /* XXX Old comments say "hide cursor"! */
808 * Closes a window, destroying the frame and OpenGL context
810 void fgPlatformCloseWindow( SFG_Window* window )
812 /* Make sure we don't close a window with current context active */
813 if( fgStructure.CurrentWindow == window )
814 wglMakeCurrent( NULL, NULL );
817 * Step through the list of windows. If the rendering context
818 * is not being used by another window, then we delete it.
824 for( iter = (SFG_Window *)fgStructure.Windows.First;
826 iter = (SFG_Window *)iter->Node.Next )
828 if( ( iter->Window.Context == window->Window.Context ) &&
834 wglDeleteContext( window->Window.Context );
837 DestroyWindow( window->Window.Handle );
843 * This function makes the current window visible
845 void fgPlatformGlutShowWindow( void )
847 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_SHOW );
851 * This function hides the current window
853 void fgPlatformGlutHideWindow( void )
855 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_HIDE );
859 * Iconify the current window (top-level windows only)
861 void fgPlatformGlutIconifyWindow( void )
863 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_MINIMIZE );
867 * Set the current window's title
869 void fgPlatformGlutSetWindowTitle( const char* title )
873 wchar_t* wstr = fghWstrFromStr(title);
874 SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
878 SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
883 * Set the current window's iconified title
885 void fgPlatformGlutSetIconTitle( const char* title )
889 wchar_t* wstr = fghWstrFromStr(title);
890 SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
894 SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
899 * Change the current window's position
901 void fgPlatformGlutPositionWindow( int x, int y )
905 /* "GetWindowRect" returns the pixel coordinates of the outside of the window */
906 GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
908 fgStructure.CurrentWindow->Window.Handle,
911 winRect.right - winRect.left,
912 winRect.bottom - winRect.top,
918 * Lowers the current window (by Z order change)
920 void fgPlatformGlutPushWindow( void )
923 fgStructure.CurrentWindow->Window.Handle,
926 SWP_NOSIZE | SWP_NOMOVE
931 * Raises the current window (by Z order change)
933 void fgPlatformGlutPopWindow( void )
936 fgStructure.CurrentWindow->Window.Handle,
939 SWP_NOSIZE | SWP_NOMOVE
944 * Resize the current window so that it fits the whole screen
946 void fgPlatformGlutFullScreen( SFG_Window *win )
948 #if !defined(_WIN32_WCE) /* FIXME: what about WinCE */
950 if (glutGet(GLUT_FULL_SCREEN))
952 /* Leave full screen state before entering fullscreen again (resizing?) */
953 glutLeaveFullScreen();
957 #if(WINVER >= 0x0500) /* Windows 2000 or later */
963 /* For fullscreen mode, first remove all window decoration
964 * and set style to popup so it will overlap the taskbar
965 * then force to maximize on the screen on which it has the most
970 /* store current window rect */
971 GetWindowRect( win->Window.Handle, &win->State.pWState.OldRect );
973 /* store current window style */
974 win->State.pWState.OldStyle = s = GetWindowLong(win->Window.Handle, GWL_STYLE);
976 /* remove decorations from style and add popup style*/
977 s &= ~WS_OVERLAPPEDWINDOW;
979 SetWindowLong(win->Window.Handle, GWL_STYLE, s);
980 SetWindowPos(win->Window.Handle, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
982 /* For fullscreen mode, find the monitor that is covered the most
983 * by the window and get its rect as the resize target.
985 hMonitor= MonitorFromRect(&win->State.pWState.OldRect, MONITOR_DEFAULTTONEAREST);
986 mi.cbSize = sizeof(mi);
987 GetMonitorInfo(hMonitor, &mi);
989 #else /* if (WINVER >= 0x0500) */
992 /* For fullscreen mode, force the top-left corner to 0,0
993 * and adjust the window rectangle so that the client area
994 * covers the whole screen.
999 rect.right = fgDisplay.ScreenWidth;
1000 rect.bottom = fgDisplay.ScreenHeight;
1002 AdjustWindowRect ( &rect, WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS |
1003 WS_CLIPCHILDREN, FALSE );
1004 #endif /* (WINVER >= 0x0500) */
1007 * then resize window
1008 * SWP_NOACTIVATE Do not activate the window
1009 * SWP_NOOWNERZORDER Do not change position in z-order
1010 * SWP_NOSENDCHANGING Suppress WM_WINDOWPOSCHANGING message
1011 * SWP_NOZORDER Retains the current Z order (ignore 2nd param)
1013 SetWindowPos( fgStructure.CurrentWindow->Window.Handle,
1017 rect.right - rect.left,
1018 rect.bottom - rect.top,
1019 SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
1023 win->State.IsFullscreen = GL_TRUE;
1029 * If we are fullscreen, resize the current window back to its original size
1031 void fgPlatformGlutLeaveFullScreen( SFG_Window *win )
1033 #if !defined(_WIN32_WCE) /* FIXME: what about WinCE */
1034 if (!glutGet(GLUT_FULL_SCREEN))
1040 /* restore style of window before making it fullscreen */
1041 SetWindowLong(win->Window.Handle, GWL_STYLE, win->State.pWState.OldStyle);
1042 SetWindowPos(win->Window.Handle, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
1045 SetWindowPos(win->Window.Handle,
1047 win->State.pWState.OldRect.left,
1048 win->State.pWState.OldRect.top,
1049 win->State.pWState.OldRect.right - win->State.pWState.OldRect.left,
1050 win->State.pWState.OldRect.bottom - win->State.pWState.OldRect.top,
1051 SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
1055 win->State.IsFullscreen = GL_FALSE;
1060 * Toggle the window's full screen state.
1062 void fgPlatformGlutFullScreenToggle( SFG_Window *win )
1064 if (!win->State.IsFullscreen)
1067 glutLeaveFullScreen();
1071 /* -- PLATFORM-SPECIFIC INTERFACE FUNCTION -------------------------------------------------- */
1073 int FGAPIENTRY __glutCreateWindowWithExit( const char *title, void (__cdecl *exit_function)(int) )
1075 __glutExitFunc = exit_function;
1076 return glutCreateWindow( title );