Renders all dynamic layers in the specified MgMap to a dynamic overlay image with a transparent background. The center, scale, size, and layers to be rendered are defined by the specified map instance. The format parameter must be set to an image format that supports transparency.
- Parameters:
-
| map | Input map object containing current state of map. |
| selection | Input map feature selection. Specifies the selected features on the map |
| format | Input image format. Defines the format of the resulting image |
| bKeepSelection | Input true if you want to keep the selection |
- Returns:
- A byte reader containing the rendered image
1.8.0 
