gtk/window.go
func (v *Window) SetIcon(icon *gdk.Pixbuf) {
	iconPtr := (*C.GdkPixbuf)(unsafe.Pointer(icon.Native()))
	C.gtk_window_set_icon(v.native(), iconPtr)
}
func (v *Window) SetIcon(icon *gdk.Pixbuf) {
	iconPtr := (*C.GdkPixbuf)(unsafe.Pointer(icon.Native()))
	C.gtk_window_set_icon(v.native(), iconPtr)
}
// SetIcon is a wrapper around gtk_window_set_icon().