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How can I prevent Form closing by Ctrl-F4
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 Hi,

I am using TabbedMDIManager and I don't  want to close tab when User press Ctrl-F4. In older version(6.3), that is OK but later version(7.1) is not.

I have tried to find property in order to prevent close tab but I can't found. Could anyone show me how to do? By overrides or set propert?

Thanks 

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  • 44743
    Verified Answer
    posted

    I believe there are two ways to get around this:

    1. You can override ProcessDialogKey on your mdi child Form and if Ctrl+F4 is pressed, return True.

    2. You can set ControlBox on the mdi child Form to False. This prevents Ctrl+F4 functionality.

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