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Check if layer is visible.
[Visual Basic .NET] Public Function IsLayerVisible ( _ ByVal Layer As ILayer _ ) As Boolean
[C#] public bool IsLayerVisible ( ILayer Layer );
[C++]
HRESULT IsLayerVisible(
ILayer* Layer
);
[C++] Parameters Layer [in]
Layer is a parameter of type ILayer*
This method determines if a layer is actually visible in a map. It does this by checking to see if the layer is not drawn due to scale ranges and also by validating whether or not the layer is in a composite layer or group layer that is not visible.