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W32: Implement composition check for GDK

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Also move DWM function grabbing and make those functions available to all of GDK-Win32.

https://bugzilla.gnome.org/show_bug.cgi?id=727316
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Руслан Ижбулатов
2014-04-10 08:48:13 +00:00
parent 6e3e0dcd73
commit 7ae5a56948
4 changed files with 59 additions and 0 deletions
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17
gdk/win32/gdkscreen-win32.c
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@ -174,6 +174,23 @@ gdk_win32_screen_is_composited (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
return _gdk_win32_is_desktop_composition_enabled ();
}
gboolean
_gdk_win32_is_desktop_composition_enabled ()
{
BOOL b;
DWORD sysver, major, minor;
sysver = GetVersion ();
major = (DWORD)(LOBYTE (LOWORD (sysver)));
minor = (DWORD)(HIBYTE (LOWORD (sysver)));
/* Composition is always enabled in W8 */
if (major >= 6 && minor >= 2)
return TRUE;
if (dwmIsCompositionEnabled && (S_OK == dwmIsCompositionEnabled (&b)))
return b;
return FALSE;
}