Mercurial > sdl-ios-xcode
view src/video/x11/SDL_x11dyn.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 | 2bf9dda618e5 |
children | 0c105755b110 |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifndef _SDL_x11dyn_h #define _SDL_x11dyn_h #include <X11/Xlib.h> #include <X11/Xutil.h> #include <X11/Xatom.h> #include <X11/Xproto.h> #include <X11/Xlibint.h> #if defined(__osf__) #include <XFree86/extensions/extutil.h> #else #include <X11/extensions/extutil.h> #endif #ifndef NO_SHARED_MEMORY #include <sys/ipc.h> #include <sys/shm.h> #include <X11/extensions/XShm.h> #endif /* * Never reference Xlib directly...we might load it dynamically at runtime. * Even if we don't, for readability, we still use the function pointers * (although the symbol resolution will be done by the loader in that case). * * We define SDL_X11_SYM and include SDL_x11sym.h to accomplish various * goals, without having to duplicate those function signatures. */ #ifdef __cplusplus extern "C" { #endif /* evil function signatures... */ typedef Bool (*SDL_X11_XESetWireToEventRetType)(Display*,XEvent*,xEvent*); typedef int (*SDL_X11_XSynchronizeRetType)(Display*); typedef Status (*SDL_X11_XESetEventToWireRetType)(Display*,XEvent*,xEvent*); typedef int (*SDL_X11_XSetExtensionErrorHandlerType)(Display *,char *,char *); #define SDL_X11_SYM(req,ret,fn,params) extern ret (*p##fn) params; #include "SDL_x11sym.h" #undef SDL_X11_SYM /* Macro in the xlib headers, not an actual symbol... */ #define pXDestroyImage XDestroyImage /* Workaround code in headers... */ #if !__SDL_NO_REDEFINE_X11_HEADER_SYMS #define _XFlush p_XFlush #define _XFlushGCCache p_XFlushGCCache #define _XReply p_XReply #define _XSend p_XSend #define XFree pXFree #if !defined(__osf__) || defined(X11_DYNAMIC) #define _XData32 p_XData32 #endif #if defined(__osf__) && defined(X11_DYNAMIC) #define _SmtBufferOverflow p_SmtBufferOverflow #define _SmtIpError p_SmtIpError #define ipAllocateData pipAllocateData #define ipUnallocateAndSendData pipUnallocateAndSendData #endif #endif /* !__SDL_NO_REDEFINE_X11_HEADER_SYMS */ int SDL_X11_LoadSymbols(void); void SDL_X11_UnloadSymbols(void); #ifdef __cplusplus } #endif #endif /* !defined _SDL_x11dyn_h */