Windows platform: Improve Open GL.

- Pass on version to ARB.
- Query obtained ARB format more fine-grained depending on version,
  indicate failures
- Fix GDI contexts and introduce gl=gdi to activate the GDI
  functionality
- Adapt window flags after setParent if top level state changes
- Remove unused OpenGL flag from integration/context

Change-Id: I59ca74ee1fa727bd2bcfd605b3907bc82cca18fa
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/src/plugins/platforms/windows/qwindowscontext.h b/src/plugins/platforms/windows/qwindowscontext.h
index 81c1c1ba68..5c74f336a7 100644
--- a/src/plugins/platforms/windows/qwindowscontext.h
+++ b/src/plugins/platforms/windows/qwindowscontext.h
@@ -108,11 +108,9 @@ public:
     static int verboseOLE;
     static int verboseInputMethods;
 
-    explicit QWindowsContext(bool isOpenGL);
+    explicit QWindowsContext();
     ~QWindowsContext();
 
-    bool isOpenGL() const;
-
     int defaultDPI() const;
 
     QString registerWindowClass(const QWindow *w, bool isGL);