makeCurrent(Drawable *drawable, Context *context)
{
if (!drawable || !context) {
- return glXMakeCurrent(display, NULL, NULL);
+ return glXMakeCurrent(display, None, NULL);
} else {
GlxDrawable *glxDrawable = dynamic_cast<GlxDrawable *>(drawable);
GlxContext *glxContext = dynamic_cast<GlxContext *>(context);