2/11/2023 0 Comments Activex microsoft excel 2011![]() ![]() See IOleInPlaceObjectWindowless::GetDropTarget for more information on drag and drop.Ī control can be an in-place active object that can be embedded in a containing client. See Events in COM and Connectable Objects for more information on how connectable objects work.Ĭontrols can support being dragged and dropped within a container with help from their container. For example, an outgoing interface can trigger an action in the client, can notify the client of some change in the control, or can request permission from the client before the control takes some action. ![]() See The Component Object Model for more information on COM, licensing, and self-registration.Ĭontrols can support outgoing interfaces through connectable objects so that the control can communicate with its client. Controls can support licensing through IClassFactory2 and self-registration. As summarized below, each of these core technologies plays a role in controls.Ī control is essentially a COM object that exposes the IUnknown interface, through which clients can obtain pointers to its other interfaces. ![]() ActiveX controls technology rests on a foundation consisting of COM, connectable objects, compound documents, property pages, OLE automation, object persistence, and system-provided font and picture objects. ![]()
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