gtk/window_since_3_12.go
func (v *Window) IsMaximized() bool {
	c := C.gtk_window_is_maximized(v.native())
	return gobool(c)
}
func (v *Window) IsMaximized() bool {
	c := C.gtk_window_is_maximized(v.native())
	return gobool(c)
}
// IsMaximized is a wrapper around gtk_window_is_maximized().