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