Sets an icon to be used as fallback for windows that haven't had gtk_window_set_icon_list() called on them from a file on disk. Warns on failure if err is NULL. Since 2.2
location of icon file
TRUE if setting the icon succeeded.
GException on failure.
See Implementation
Sets an icon to be used as fallback for windows that haven't had gtk_window_set_icon_list() called on them from a file on disk. Warns on failure if err is NULL. Since 2.2