background_callback  117 lib/widget/background.c     widget_init (w, &r, callback != NULL ? callback : background_callback, NULL);
background_callback   32 lib/widget/background.h cb_ret_t background_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data);
background_callback  935 src/editor/editwidget.c         return background_callback (w, sender, msg, parm, data);