Make Unmanaged Window as Form's parent

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Hi All,

My question is simple, but VERY important to me [sigh] .. as far as I know, one managed wnd can be parent of any unmanaged wnd... no vicevesa... I'm not an expert and I'd like to suggest that someone could post one example to do this...could be VERY useful to everybody :)

One unmanaged window ( C++ ) can be parent of one Managed ( C#.NET ) window ?? if this is possible... please share with me the answer...

Thanks in advance,
Best regards.

Posted 7-Jul-09 6:17am

richard072

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Eddy Vluggen · Answer 1 · 2009-07-07T06:39:00

richard072 wrote:
could be VERY useful to everybody

Whehe, good argument [laugh]

First, you add a using clause;

using System.Runtime.InteropServices;

Next, copy this code into your class;

[DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)]<br />static extern IntPtr FindWindowByCaption(IntPtr ZeroOnly, string lpWindowName);<br />[DllImport("user32.dll", EntryPoint = "SetParent", SetLastError = true)]<br />static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

Next, add this code to the place where you want to change the parent;

IntPtr window = FindWindowByCaption(IntPtr.Zero, "Calculator");<br />SetParent(window, this.Handle);

--edit--
I posted the reverse thing, but it's also possible from C++ using the same technique. A quick suggestion tho - why not make an ActiveX-control out of the C# window?

Enjoy :)