DrawContext.endFrame
void endFrame()Ends a drawing operation started with [gdk.draw_context.DrawContext.beginFrame].
This makes the drawing available on screen. See [gdk.draw_context.DrawContext.beginFrame] for more details about drawing.
When using a [gdk.glcontext.GLContext], this function may call glFlush() implicitly before returning; it is not recommended to call glFlush() explicitly before calling this function.