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PaintDesktop

Scheduled Pinned Locked Moved C / C++ / MFC
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  • D Offline
    D Offline
    daavena
    wrote on last edited by
    #1

    Hello, I want to obtain desktop background, so I would like to use PaintDesktop(hdc) function; SDK says: The PaintDesktop function fills the clipping region in the specified device context with the desktop pattern or wallpaper HRGN hReg = CreateRectRgn(0,0,10,10); HDC hdcD = GetWindowDC(GetDesktopWindow()); hdc = CreateCompatibleDC(hdcD); SelectObject(hdc,hReg); bResult = PaintDesktop(hdc); But PaintDesktop function always returns false. What am I doning wrong? Could you give me a hint. Thank you.

    CPalliniC 1 Reply Last reply
    0
    • D daavena

      Hello, I want to obtain desktop background, so I would like to use PaintDesktop(hdc) function; SDK says: The PaintDesktop function fills the clipping region in the specified device context with the desktop pattern or wallpaper HRGN hReg = CreateRectRgn(0,0,10,10); HDC hdcD = GetWindowDC(GetDesktopWindow()); hdc = CreateCompatibleDC(hdcD); SelectObject(hdc,hReg); bResult = PaintDesktop(hdc); But PaintDesktop function always returns false. What am I doning wrong? Could you give me a hint. Thank you.

      CPalliniC Offline
      CPalliniC Offline
      CPallini
      wrote on last edited by
      #2

      Why don't you call GetLastError on PaintDesktop failure? :)

      If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
      This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
      [My articles]

      In testa che avete, signor di Ceprano?

      L 1 Reply Last reply
      0
      • CPalliniC CPallini

        Why don't you call GetLastError on PaintDesktop failure? :)

        If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
        This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
        [My articles]

        L Offline
        L Offline
        Lost User
        wrote on last edited by
        #3

        or if you're lazy, add @err,hr to your watch window :)

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