We are creating a very huge extension for ArcMap and in the process, we have created a lot of new custom toolbars. These toolbars contains both buttons and custom controls. These custom controls can only be viewed in a horizontal orientation (they are drop-downs for the most part).
I was wondering if there is a flag I can set on my objets in one of the interface to tell ArcMap that these toolbar are only available for horizontal orientation (this mean that when the user is trying to place them on the screen, using the docking mechanism, ArcMap doesn't offert the docking in vertical orientation for example).
I'm using the IToolBarDef and have been searching the documentation for another interface but all I can find is an Orientation properties for the ToolbarControl which I can't use because I work with ArcObjects.