Specifies the type of function passed to set_icon_loader.
| icon_name |
an icon name as in the Icon field in a .desktop file for the icon to load. |
| size |
the desired icon size. |
| flags |
not defined to do anything yet. |
| data |
data passed to the function, set when the LoadIconFunction has been set for the Tasklist. |
|
it should return a <classname>GdkPixbuf</classname> of |