MFC-仅最小化MDI主窗口

Question

I have main MDI window and have custom CWnd derived window which I create dynamically run-time. I want to keep that window on the screen even when main MDI window is minimized but I dont want to have top-most window. I have tried use WS_EX_CONTROLPARENT | WS_EX_APPWINDOW WS_EX_CONTROLPARENT | WS_EX_APPWINDOW styles, set parent to NULL and set owner to GetDesktopWindow() but nothing works.

Any ideas how I should do that?

Answer 1

When window is minimized, it takes down with it all of its child and owned windows.

This code creates a regular (not topmost) window which is not hidden when the main frame is minimized:

    HWND hWnd = ::CreateWindow(L"button", L"test", WS_CAPTION|WS_VISIBLE, 
                               100, 100, 200, 200, GetDesktopWindow(), 0, 0, 0);