void gtk_test_widget_wait_for_draw ( GtkWidget* widget )
Enters the main loop and waits for
widget to be “drawn”. In this
context that means it waits for the frame clock of
widget to have
run a full styling, layout and drawing cycle.
This function is intended to be used for syncing with actions that
widget relayouting or on interaction with the display server.
Available since: 3.10
The widget to wait for.
The data is owned by the caller of the function.