| Overload | Description |
|---|---|
| InvalidateSafely(Rectangle) | Invalidates the specified region of the viewer (adds it to the viewer's update region, which is the area that will be repainted at the next paint operation), and causes the viewer to be redrawn without blinking of image in the viewer. |
| InvalidateSafely() | Invalidates the entire surface of the viewer and causes the viewer to be redrawn without blinking of image in the viewer. |