<div>
I found a solution on the dotnet247 forum.<br />
After I create the .Net control, I call SetParent Win32 using:<br />
<br />
\\\<br />
[DllImport(&quot;USER32.DLL&quot;)]<br />
private static extern IntPtr SetParent(<br />
IntPtr hWndChild, // handle to window<br />
IntPtr hWndNewParent // new parent window<br />
);<br />
///<br />
<br />
That work.<br />
<br />
If you know anything nicier, I'll still award the points.<br />

</div>


I found a solution on the dotnet247 forum.
After I create the .Net control, I call SetParent Win32 using:

\\\
[DllImport("USER32.DLL")]
private static extern IntPtr SetParent(
IntPtr hWndChild, // handle to window
IntPtr hWndNewParent // new parent window
);
///

That work.

If you know anything nicier, I'll still award the points.


<div>
I don't even think there is another way to do that, although I could be wrong. Might just ask to get your points refunded in the community TA :)
</div>


I don't even think there is another way to do that, although I could be wrong. Might just ask to get your points refunded in the community TA :)

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<div class="content wysiwyg-content">
I'm writing an Office Add-in in C#.<br />
Using Automation, I get the Handle of the main window of the application in which the Add-in is running (in my case, PowerPoint).<br />
I can then navigate the Child windows, hook into message loops and can create additional Windows using the NativeWindow class<br />
<br />
But<br />
<br />
I would like to be able to create a .NET control and position it into the application. The problem is that I have non-.NET handles and when I try to call Control.FromHandle(handle)<wbr />, it returns null. Then I can't assign a parent to my .NET control so it's not displayed.<br />
<br />
So How do I assign a .NET control to a non-.NET parent window ?<br />
<br />
Thanks<br />
<br />
Marc
</div>
</div>


I'm writing an Office Add-in in C#.
Using Automation, I get the Handle of the main window of the application in which the Add-in is running (in my case, PowerPoint).
I can then navigate the Child windows, hook into message loops and can create additional Windows using the NativeWindow class

But

I would like to be able to create a .NET control and position it into the application. The problem is that I have non-.NET handles and when I try to call Control.FromHandle(handle), it returns null. Then I can't assign a parent to my .NET control so it's not displayed.

So How do I assign a .NET control to a non-.NET parent window ?

Thanks

Marc

How to insert a .NET control into a non-.NET NativeWindow ?

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.