HelenOS sources

ui_window_app_invalidate  138 uspace/lib/ui/src/window.c static void ui_window_app_invalidate(void *, gfx_rect_t *);
ui_window_app_invalidate  143 uspace/lib/ui/src/window.c 	.invalidate = ui_window_app_invalidate,
HelenOS homepage, sources at GitHub