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how do i get a tool tip on a IVideoWindow video capture preview overlay?

Last Modified: 2013-11-20
So I have a MFC CDialog with a video preview of a webcam running in it.  There's a static window in the dialog that I use to parent the IVideoWindow to, via put_Owner.  The dialog has tips enabled via EnableToolTips() using a CToolTipCtrl member in the dialog.  Other static elements in the dialog have tips correctly via AddTool.  So the problem is, using AddTool for the static window that's the parent of IVideoWindow doesn't help, because IVideoWindow ends up being on top of it.  I found some code that supposedly let me get the HWND of the IVideoWindow, but that failed to find the pin.  Anyone figured out how to get a tip on the video preview overlay?
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