gtk/color_chooser.go
func (v *ColorChooser) SetUseAlpha(use_alpha bool) {
	C.gtk_color_chooser_set_use_alpha(v.native(), gbool(use_alpha))
}
func (v *ColorChooser) SetUseAlpha(use_alpha bool) {
	C.gtk_color_chooser_set_use_alpha(v.native(), gbool(use_alpha))
}
// SetUseAlpha() is a wrapper around gtk_color_chooser_set_use_alpha().