Mercurial > sdl-ios-xcode
changeset 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 | 94643e9bad18 |
| children | 0175d3eeae89 |
| files | src/video/windib/SDL_dibevents.c src/video/windx5/SDL_dx5events.c |
| diffstat | 2 files changed, 14 insertions(+), 4 deletions(-) [+] |
line wrap: on
line diff
--- a/src/video/windib/SDL_dibevents.c Tue Jan 31 14:59:43 2006 +0000 +++ b/src/video/windib/SDL_dibevents.c Tue Jan 31 15:30:42 2006 +0000 @@ -56,7 +56,12 @@ /* DJM: If the user setup the window for us, we want to save his window proc, and give him a chance to handle some messages. */ -static WNDPROC userWindowProc = NULL; +#ifdef STRICT +#define WNDPROCTYPE WNDPROC +#else +#define WNDPROCTYPE FARPROC +#endif +static WNDPROCTYPE userWindowProc = NULL; #ifdef _WIN32_WCE @@ -427,7 +432,7 @@ /* DJM: we want all event's for the user specified window to be handled by SDL. */ - userWindowProc = (WNDPROC)GetWindowLong(SDL_Window, GWL_WNDPROC); + userWindowProc = (WNDPROCTYPE)GetWindowLong(SDL_Window, GWL_WNDPROC); SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)WinMessage); } else { SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
--- a/src/video/windx5/SDL_dx5events.c Tue Jan 31 14:59:43 2006 +0000 +++ b/src/video/windx5/SDL_dx5events.c Tue Jan 31 15:30:42 2006 +0000 @@ -66,7 +66,12 @@ /* DJM: If the user setup the window for us, we want to save his window proc, and give him a chance to handle some messages. */ -static WNDPROC userWindowProc = NULL; +#ifdef STRICT +#define WNDPROCTYPE WNDPROC +#else +#define WNDPROCTYPE FARPROC +#endif +static WNDPROCTYPE userWindowProc = NULL; static HWND GetTopLevelParent(HWND hWnd) { @@ -871,7 +876,7 @@ /* DJM: we want all event's for the user specified window to be handled by SDL. */ - userWindowProc = (WNDPROC)GetWindowLong(SDL_Window, GWL_WNDPROC); + userWindowProc = (WNDPROCTYPE)GetWindowLong(SDL_Window, GWL_WNDPROC); SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)WinMessage); } else { SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,