context = G_APP_LAUNCH_CONTEXT (gdk_app_launch_context_new ());
gdk_app_launch_context_set_screen (GDK_APP_LAUNCH_CONTEXT (context), screen);
gdk_app_launch_context_set_timestamp (GDK_APP_LAUNCH_CONTEXT (context), timestamp);
context = G_APP_LAUNCH_CONTEXT (gdk_app_launch_context_new ());
gdk_app_launch_context_set_screen (GDK_APP_LAUNCH_CONTEXT (context), screen);
gdk_app_launch_context_set_timestamp (GDK_APP_LAUNCH_CONTEXT (context), timestamp);