Attach window to external process

Question

I'm writing an application in C# which needs to attach one of its own windows to a window owned by another process. I tried using the SetParent function from the windows api, but it doesn't seem to work. Is there any way to do this?

    [DllImport("user32.dll", SetLastError = true)]
    private static extern int SetParent(int hWndChild, int hWndNewParent);

    private void AttachWindow(int newParent) {
    SetParent(this.Handle, newParent);
     }

score 2 · Accepted Answer · edited May 23 '17 at 12:11

2

Firstly, your P/Invoke declaration is wrong. Handles are represented by IntPtr, not Int32:

[DllImport("user32.dll", SetLastError = true)]
private static extern int SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

Now maybe you should avoid "attaching" a window to another process. See this SO thread.

edited May 23 '17 at 12:11

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answered Feb 05 '12 at 13:05

ken2k

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Attach window to external process

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