To set the IMapFrame::Border, you have to provide an IBorder. You can set the properties of the IBorder using the ISymbolBorder. Take a look at someexamples of how to do that.
To set the IMapFrame::Border, you have to provide an IBorder. You can set the properties of the IBorder using the ISymbolBorder. Take a look at someexamples of how to do that.
To set the IMapFrame::Border, you have to provide an IBorder. You can set the properties of the IBorder using the ISymbolBorder. Take a look at someexamples of how to do that.