Describes the image data representation used by a GtkImage. If you want to get the image from the widget, you can only get the currently stored representation. For example, if the get_storage_type() returns Gtk::IMAGE_PIXBUF, then you can call get_pixbuf() but not get_stock. For empty images, you can request any storage type (call any of the "get" functions), but they will all return null values.
Value | Symbolic name | Description | 
| 0 | Gtk::IMAGE_EMPTY | There is no image displayed by the widget. | 
| 1 | Gtk::IMAGE_PIXMAP | The widget contains a GdkPixmap. | 
| 2 | Gtk::IMAGE_IMAGE | The widget contains a GdkImage. | 
| 3 | Gtk::IMAGE_PIXBUF | The widget contains a GdkPixbuf. | 
| 4 | Gtk::IMAGE_STOCK | The widget contains a stock icon name | 
| 5 | Gtk::IMAGE_ICON_SET | The widget contains a GtkIconSet. | 
| 6 | Gtk::IMAGE_ANIMATION | The widget contains a GdkPixbufAnimation. | 
| 7 | Gtk::IMAGE_ICON_NAME |