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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2012 Sam Lantinga
      4 
      5     This library is free software; you can redistribute it and/or
      6     modify it under the terms of the GNU Lesser General Public
      7     License as published by the Free Software Foundation; either
      8     version 2.1 of the License, or (at your option) any later version.
      9 
     10     This library is distributed in the hope that it will be useful,
     11     but WITHOUT ANY WARRANTY; without even the implied warranty of
     12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13     Lesser General Public License for more details.
     14 
     15     You should have received a copy of the GNU Lesser General Public
     16     License along with this library; if not, write to the Free Software
     17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     18 
     19     Sam Lantinga
     20     slouken (at) libsdl.org
     21 */
     22 #include "SDL_config.h"
     23 
     24 #ifndef _SDL_lowvideo_h
     25 #define _SDL_lowvideo_h
     26 
     27 #define WIN32_LEAN_AND_MEAN
     28 #include <windows.h>
     29 
     30 #ifndef SetClassLongPtr
     31 #define SetClassLongPtr	SetClassLong
     32 #endif
     33 #ifndef GetWindowLongPtr
     34 #define GetWindowLongPtr	GetWindowLong
     35 #endif
     36 #ifndef SetWindowLongPtr
     37 #define SetWindowLongPtr	SetWindowLong
     38 #endif
     39 #ifndef GWLP_WNDPROC
     40 #define GWLP_WNDPROC	GWL_WNDPROC
     41 #endif
     42 #ifndef GWLP_HINSTANCE
     43 #define GWLP_HINSTANCE GWL_HINSTANCE
     44 #endif
     45 #ifndef GCLP_HICON
     46 #define GCLP_HICON GCL_HICON
     47 #endif
     48 
     49 #include "../SDL_sysvideo.h"
     50 
     51 /* Hidden "this" pointer for the video functions */
     52 #define _THIS	SDL_VideoDevice *this
     53 
     54 #define FULLSCREEN() \
     55 	((SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
     56 
     57 #define WINDIB_FULLSCREEN()						\
     58 (									\
     59 	SDL_VideoSurface &&						\
     60 	FULLSCREEN() && \
     61 	(((SDL_VideoSurface->flags & SDL_OPENGL   ) == SDL_OPENGL    ) || \
     62 	((SDL_strcmp(this->name, "windib") == 0) || \
     63 	 (SDL_strcmp(this->name, "gapi") == 0))) \
     64 )
     65 #define DDRAW_FULLSCREEN() 						\
     66 (									\
     67 	SDL_VideoSurface &&						\
     68 	FULLSCREEN() && \
     69 	((SDL_VideoSurface->flags & SDL_OPENGL    ) != SDL_OPENGL    ) && \
     70 	(SDL_strcmp(this->name, "directx") == 0)				\
     71 )
     72 
     73 #define DINPUT_FULLSCREEN() 						\
     74 (									\
     75 	FULLSCREEN() && \
     76 	(strcmp(this->name, "directx") == 0)				\
     77 )
     78 
     79 #define DINPUT() (strcmp(this->name, "directx") == 0)
     80 
     81 /* The main window -- and a function to set it for the audio */
     82 #ifdef _WIN32_WCE
     83 extern LPWSTR SDL_Appname;
     84 #else
     85 extern LPSTR SDL_Appname;
     86 #endif
     87 extern HINSTANCE SDL_Instance;
     88 extern HWND SDL_Window;
     89 extern BOOL SDL_windowid;
     90 
     91 /* Variables and functions exported to other parts of the native video
     92    subsystem (SDL_sysevents.c)
     93 */
     94 extern void WIN_FlushMessageQueue();
     95 
     96 /* Called by windows message loop when application is activated */
     97 extern void (*WIN_Activate)(_THIS, BOOL active, BOOL minimized);
     98 
     99 /* Called by windows message loop when system palette is available */
    100 extern void (*WIN_RealizePalette)(_THIS);
    101 
    102 /* Called by windows message loop when the system palette changes */
    103 extern void (*WIN_PaletteChanged)(_THIS, HWND window);
    104 
    105 /* Called by windows message loop when a portion of the screen needs update */
    106 extern void (*WIN_WinPAINT)(_THIS, HDC hdc);
    107 
    108 /* Called by windows message loop when the message isn't handled */
    109 extern LONG (*HandleMessage)(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
    110 
    111 /* The window cursor (from SDL_sysmouse.c) */
    112 extern HCURSOR SDL_hcursor;
    113 
    114 /* The bounds of the window in screen coordinates */
    115 extern RECT SDL_bounds;
    116 
    117 /* The position of the window in windowed mode */
    118 extern int SDL_windowX;
    119 extern int SDL_windowY;
    120 
    121 /* Flag -- SDL is performing a resize, rather than the user */
    122 extern int SDL_resizing;
    123 
    124 /* Flag -- the mouse is in relative motion mode */
    125 extern int mouse_relative;
    126 
    127 /* The GDI fullscreen mode currently active */
    128 #ifndef NO_CHANGEDISPLAYSETTINGS
    129 extern DEVMODE SDL_desktop_mode;
    130 extern DEVMODE SDL_fullscreen_mode;
    131 #endif
    132 
    133 /* The system gamma ramp for GDI modes */
    134 extern WORD *gamma_saved;
    135 
    136 /* This is really from SDL_dx5audio.c */
    137 extern void DX5_SoundFocus(HWND window);
    138 
    139 /* DJM: This is really from SDL_sysevents.c, we need it in
    140    GDL_CreateWindow as well */
    141 LRESULT CALLBACK WinMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
    142 
    143 #ifdef _WIN64
    144 #define SDL_ToUnicode  ToUnicode
    145 #else
    146 /* JFP: Implementation of ToUnicode() that works on 9x/ME/2K/XP */
    147 typedef int (WINAPI *ToUnicodeFN)(UINT, UINT, const BYTE *, LPWSTR, int, UINT);
    148 
    149 extern ToUnicodeFN SDL_ToUnicode;
    150 #endif
    151 
    152 #endif /* SDL_lowvideo_h */
    153