From: Chun-wei Fan <fanchunwei@src.gnome.org>
Date: Mon, 19 Jul 2021 09:13:53 +0000 (+0800)
Subject: gdkdisplay-win32.c: Don't call ReleaseDC() unnecessarily
X-Git-Tag: archive/raspbian/4.4.1+ds1-2+rpi1^2~18^2~3^2~9^2~1
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=4b12dc65473b29f7d90d6a7562a8ef219af8469f;p=gtk4.git

gdkdisplay-win32.c: Don't call ReleaseDC() unnecessarily

The dummy Win32 window that we use to capture display change events and
to create dummy WGL contexts was created with CS_OWNDC, so we really do
not need to (and should not) call ReleaseDC() on the HDC that we
obtained from it, so drop these calls.
---

diff --git a/gdk/win32/gdkdisplay-win32.c b/gdk/win32/gdkdisplay-win32.c
index ab6544a79b..24f60ba3e4 100644
--- a/gdk/win32/gdkdisplay-win32.c
+++ b/gdk/win32/gdkdisplay-win32.c
@@ -664,12 +664,6 @@ gdk_win32_display_dispose (GObject *object)
           display_win32->dummy_context_wgl.hglrc = NULL;
         }
 
-      if (display_win32->dummy_context_wgl.hdc != NULL)
-        {
-          ReleaseDC (display_win32->hwnd, display_win32->dummy_context_wgl.hdc);
-          display_win32->dummy_context_wgl.hdc = NULL;
-        }
-
       DestroyWindow (display_win32->hwnd);
       display_win32->hwnd = NULL;
     }