Home Forums WPF controls Other WPF controls AvalonDock: 'Hwnd of zero is not valid' message when docking a window

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  • HanzieV
    Post count: 13
    #44626 |


    When setting the theme of the DockingManager to a theme other than GenericTheme, the error ‘Hwnd of zero is not valid’ gets thrown when trying to dock a window.

    Any help would be much appreciated !

    Best regards,

    Fawzi [Xceed]
    Post count: 722


    I was not able to reproduce the issue using AvalonDock themes with a DockingManager in v3.2. Which themes and which avalonDock version are you using? Under what version of Windows are you working? Could you send me a sample project which reproduces the issue so that I could have a closer look. You may send it to support@xceed.com

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