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Hi,

I have a class derived from CExtNCW < CFrameWnd >.
I would like to enable/disable the custom painting features of CExtNCW at runtime.

Is it a correct way to set m_bNcFrameImpl_IsEnabled to true or false ?

Thank you

David

Yes, that is correct. But after changing m_bNcFrameImpl_IsEnabled, you should re-compute the window’s non-client area. You can use CExtNcFrameImpl::NcFrameImpl_RecalcNcFrame() for that or the following code:

HWND hWnd = . . .
      ::SetWindowPos(
            hWnd, NULL, 0, 0, 0, 0,
            SWP_FRAMECHANGED
                  |SWP_NOACTIVATE
                  |SWP_NOZORDER
                  |SWP_NOOWNERZORDER
                  |SWP_NOMOVE
                  |SWP_NOSIZE
            );