pqiv.c:4246:62: error: passing argument 2 of ‘g_timeout_add’ from incompatible pointer type [-Wincompatible-pointer-types]
 4246 |         fullscreen_transition_source_id = g_timeout_add(500, window_fullscreen_helper_reset_transition_id, NULL);
      |                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                              |
      |                                                              gboolean (*)(void) {aka int (*)(void)}
/usr/include/glib-2.0/glib/gmain.h:878:54: note: expected ‘GSourceFunc’ {aka ‘int (*)(void *)’} but argument is of type ‘gboolean (*)(void)’ {aka ‘int (*)(void)’}
  878 |                                      GSourceFunc     function,
      |                                      ~~~~~~~~~~~~~~~~^~~~~~~~
/home/nho/workshop/pqiv/pqiv.c:4162:10: note: ‘window_fullscreen_helper_reset_transition_id’ declared here
 4162 | gboolean window_fullscreen_helper_reset_transition_id() {/*{{{*/
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/glib-2.0/glib/gmain.h:199:20: note: ‘GSourceFunc’ declared here
  199 | typedef gboolean (*GSourceFunc)       (gpointer user_data);
      |                    ^~~~~~~~~~~