Ensures that the gdk.glcontext.GLContext used by area is associated with the gtk.glarea.GLArea.
This function is automatically called before emitting the gtk.glarea.GLArea.render signal, and doesn't normally need to be called by application code.
Ensures that the gdk.glcontext.GLContext used by area is associated with the gtk.glarea.GLArea.
This function is automatically called before emitting the gtk.glarea.GLArea.render signal, and doesn't normally need to be called by application code.