I notice in the Resource Editor that you can mark a button "Visible" or not. If you leave visible unchecked the dialog opens without showing the button. Is there a way now from the program to change the properties of the button to be visible? I see a CWnd::SetProperty that applies to buttons but it seems to only change ActiveX properties. I'd like to have the button not show up until the program gets to a point where it asks a question that would be answered by Yes and No buttons that became visible at that time.