True if MapForce is displayed on the screen (though it might be covered by other applications or be iconized).
False if MapForce is hidden. The default value for MapForce when automatically started due to a request from the automation server Application is false. In all other cases, the property is initialized to true.
An application instance that is visible is said to be controlled by the user (and possibly by clients connected via the automation interface). It will only shut down due to an explicit user request. To shut down an application instance, set its visibility to false and clear all references to this instance within your program. The application instance will shut down automatically when no further COM clients are holding references to it.
Visible : Boolean
The application object is no longer valid.
Invalid address for the return parameter was specified.