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Asked: 2026-06-05T02:05:12+00:00

These codes will set the windows calculator into a windows form application. But the

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These codes will set the windows calculator into a windows form application. But the question is how to use the NativeMethods.SetParent in the third line. Does it have special namespace?

 System.Diagnostics.Process p = System.Diagnostics.Process.Start("calc.exe");
p.WaitForInputIdle();
NativeMethods.SetParent(p.MainWindowHandle, this.Handle);

Please help me to use NativeMethods in the third line.

Any help will be appreciated

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1 Answer

  1. Editorial Team

    I presume you are trying to “embed” the calculator within a WinForm? If so check out the following pinvoke method:

        [DllImport("user32.dll")]
    internal static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

    http://www.pinvoke.net/default.aspx/user32.setparent

    To embed the calculator window into a WinForm (or another control such as a Panel), just pass the Control.Handle as the second parameter.

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