gdkWindowSetIcon
Sets the icon of window as a pixmap or window. If using GTK+, investigate
gtkWindowSetDefaultIconList first, and then gtkWindowSetIconList
and gtkWindowSetIcon. If those don't meet your needs, look at
gdkWindowSetIconList. Only if all those are too high-level do you
want to fall back to gdkWindowSetIcon.
gdkWindowSetIcon(object, icon.window, pixmap, mask)
Derived by RGtkGen from GTK+ documentation
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.