func setActionImage(action *walk.Action, image interface{}) (err error) {
var img walk.Image
switch image := image.(type) {
case nil:
return nil
case *walk.Bitmap:
img = image
case string:
if img, err = imageFromFile(image); err != nil {
return
}
}
if bmp, ok := img.(*walk.Bitmap); ok {
return action.SetImage(bmp)
}
return errors.New("invalid type for Image")
}
