From 2155d8418baa575f37750f6910a74d467cb1c46e Mon Sep 17 00:00:00 2001
From: Vadim Lopatin <coolreader.org@gmail.com>
Date: Wed, 18 Mar 2015 09:30:12 +0300
Subject: [PATCH] fix OpenGL support on Win32 backend

---
 src/dlangui/platforms/common/platform.d | 9 ++++++---
 src/dlangui/platforms/windows/winapp.d  | 2 +-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/dlangui/platforms/common/platform.d b/src/dlangui/platforms/common/platform.d
index 38449d45..bcd3e802 100644
--- a/src/dlangui/platforms/common/platform.d
+++ b/src/dlangui/platforms/common/platform.d
@@ -1341,9 +1341,12 @@ version (USE_OPENGL) {
     /// check if hardware acceleration is enabled
     @property bool openglEnabled() { return _OPENGL_ENABLED; }
     /// call on app initialization if OpenGL support is detected
-    void setOpenglEnabled() {
-        _OPENGL_ENABLED = true;
-	    glyphDestroyCallback = &onGlyphDestroyedCallback;
+    void setOpenglEnabled(bool enabled = true) {
+        _OPENGL_ENABLED = enabled;
+        if (enabled)
+	        glyphDestroyCallback = &onGlyphDestroyedCallback;
+        else
+	        glyphDestroyCallback = null;
     }
 }
 
diff --git a/src/dlangui/platforms/windows/winapp.d b/src/dlangui/platforms/windows/winapp.d
index f38a5366..43b1f217 100644
--- a/src/dlangui/platforms/windows/winapp.d
+++ b/src/dlangui/platforms/windows/winapp.d
@@ -1036,7 +1036,7 @@ int myWinMain(void* hInstance, void* hPrevInstance, char* lpCmdLine, int iCmdSho
             platform.enterMessageLoop();
         } catch (Exception e) {
             Log.e("Exception while trying to init OpenGL", e);
-            openglEnabled = false;
+		    setOpenglEnabled(false);
         }
     }