Mercurial > sdl-ios-xcode
view src/video/Xext/extensions/Xinerama.h @ 1303:52b5afd7ecee
Date: Tue, 05 Jul 2005 21:43:26 +1000
From: Sean Childs
Subject: [SDL] Compiling SDL 1.2.8 with the free Borland compiler
When compiling SDL 1.2.8 with the free Borland compiler, I received this
error (there is a similar error that occurs in
src\video\windx5\sdl_dx5events.c):
Error E2342 ..\..\src\video\windib\sdl_dibevents.c 189: Type mismatch in
parameter 'lpPrevWndFunc' (wanted 'int (__stdcall *)()', got 'long
(__stdcall *)(void *,unsigned int,unsigned int,long)') in function
DIB_HandleMessage
I checked the MSDN library at:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/
windowsuserinterface/windowing/windowprocedures/windowprocedurereference/wind
owprocedurefunctions/callwindowproc.asp
and it had this to say:
If STRICT is not defined, the lpPrevWndFunc parameter has the data type
FARPROC. The FARPROC type is declared as follows:
int (FAR WINAPI * FARPROC) ()
In C, the FARPROC declaration indicates a callback function that has an
unspecified parameter list. In C++, however, the empty parameter list in
the declaration indicates that a function has no parameters. This subtle
distinction can break careless code. Following is one way to handle this
situation:
#ifdef STRICT
WNDPROC MyWindowProcedure
#else
FARPROC MyWindowProcedure
#endif
...
lResult = CallWindowProc(MyWindowProcedure, ...)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 31 Jan 2006 15:30:42 +0000 |
parents | 585a7e1285ae |
children | 782fd950bd46 c121d94672cb |
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/* $XFree86: xc/include/extensions/Xinerama.h,v 3.2 2000/03/01 01:04:20 dawes Exp $ */ #ifndef _Xinerama_h #define _Xinerama_h #include "SDL_name.h" typedef struct { int screen_number; short x_org; short y_org; short width; short height; } SDL_NAME(XineramaScreenInfo); Bool SDL_NAME(XineramaQueryExtension) ( Display *dpy, int *event_base, int *error_base ); Status SDL_NAME(XineramaQueryVersion)( Display *dpy, int *major, int *minor ); Bool SDL_NAME(XineramaIsActive)(Display *dpy); /* Returns the number of heads and a pointer to an array of structures describing the position and size of the individual heads. Returns NULL and number = 0 if Xinerama is not active. Returned array should be freed with XFree(). */ SDL_NAME(XineramaScreenInfo) * SDL_NAME(XineramaQueryScreens)( Display *dpy, int *number ); #endif /* _Xinerama_h */