view src/video/Xext/extensions/Xinerama.h @ 4511:ae7799d16c87

Daniel Wyatt 2010-03-26 14:52:53 PDT If a non-console Windows SDL program has a non-quoted 0th argument followed optionally by more non-quoted arguments and then by an empty quoted argument, it will crash (attempts to dereference a NULL pointer). In other words, something like this: test.exe [non-quoted args] "" [...] The fix is a one-liner in ParseCommandLine() of src/main/win32/SDL_win32_main.c. You can test this with any non-console SDL program on windows like this: 1) Open a console (cmd.exe) 2) Launch the program in one of the following ways: program "" program arg1 "" program arg1 "" arg3 These will not cause a crash: "program" [...] program "arg1" "" When a Windows program is launched from Explorer, its 0th argument seems to always be quoted, so it won't be a problem in that case. I've tested this on Windows XP SP3 and Windows 7.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 12 Jul 2010 22:08:50 -0700
parents c121d94672cb
children
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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 */
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