- implement wglGetCurrentReadDCARB, wglMakeContextCurrentARB on
  openGL32 (wgl_ext)
- add code to disable some openGL extensions support using wine
  registry key HKLM\Software\Wine\OpenGL\DisabledExtensions (list
  separated by spaces)
- valid/robust implementation of wglChoosePixelFormatARB and
  wglGetPixelFormatAttribivARB (wgl_ext)

diff --git a/dlls/opengl32/opengl_norm.c b/dlls/opengl32/opengl_norm.c
index bd891e7..a4d4298 100644
--- a/dlls/opengl32/opengl_norm.c
+++ b/dlls/opengl32/opengl_norm.c
@@ -1500,7 +1500,7 @@
   const GLubyte * ret_value;
   TRACE("(%d)\n", name );
   ENTER_GL();
-  ret_value = glGetString( name );
+  ret_value = internal_glGetString( name );
   LEAVE_GL();
   return ret_value;
 }