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sys_sdl_win.c: Call SetProcessDPIAware if available (Vista and above) to opt out of the OS scaling our window on a high-dpi display.

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SDL (both 1.x and 2.x) is buggy and can't deal with scaled windows.
But we'd probably want to call this anyway beause it give us full-resolution windows.

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1045 af15c1b1-3010-417e-b628-4374ebc0bcbd
This commit is contained in:
Eric Wasylishen 2014-09-21 00:59:24 +00:00
parent 362deedf20
commit 2e23f6a3b5
1 changed files with 22 additions and 0 deletions
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22
Quake/sys_sdl_win.c
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@ -172,10 +172,32 @@ static void Sys_GetBasedir (char *argv0, char *dst, size_t dstsize)
}
}
typedef BOOL(*SetProcessDPIAwareFunc)();
void Sys_SetDPIAware (void)
{
HMODULE hUser32;
SetProcessDPIAwareFunc setDPIAware;
/* Neither SDL 1.2 nor SDL 2.0.3 can handle the OS scaling our window.
(e.g. https://bugzilla.libsdl.org/show_bug.cgi?id=2713)
Call SetProcessDPIAware() to opt out of scaling.
*/
hUser32 = LoadLibraryA ("user32.dll");
setDPIAware = (SetProcessDPIAwareFunc) GetProcAddress (hUser32, "SetProcessDPIAware");
if (setDPIAware)
setDPIAware ();
FreeLibrary (hUser32);
}
void Sys_Init (void)
{
OSVERSIONINFO vinfo;
Sys_SetDPIAware ();
memset (cwd, 0, sizeof(cwd));
Sys_GetBasedir(NULL, cwd, sizeof(cwd));
host_parms->basedir = cwd;