PyCWnd.BringWindowToTop
BringWindowToTop()
Brings the window to the top of a stack of overlapping windows.
Comments
This method activates pop-up, top-level, and MDI child windows. The BringWindowToTop member function should be used to uncover any window that is partially or completely obscured by any overlapping windows.Calling this method is similar to calling the PyCWnd::SetWindowPos method to change a window's position in the Z order. The BringWindowToTop method does not change the window style to make it a top-level window of the desktop.
MFC References