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Hello,

How can I get the main window of a process using C#?

Thanks.
Posted
Updated 19-Feb-11 13:47pm
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Sergey Alexandrovich Kryukov 19-Feb-11 20:37pm    
It doesn't look like a healthy or safe programming idea. May I as you why?

You start with the Process class to get the Process instance you're looking for. Then you can use it's MainWindowHandle property to get the handle to the apps startup form.
 
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Sergey Alexandrovich Kryukov 19-Feb-11 19:33pm    
My 5. That said, processed does not "have" Forms.
--SA
[Adding to Dave's answer.]


You cannot use the handle returned from Process.MainWindowHandle with methods like Form.FromHandle because the handle is not already associated with a Control object in your application. Any interaction with that window will have to be through P/Invoking APIs like SetWindowText.
 
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