Windows Forms Control.CreateControl() equivalent in WPF

Question

normally I use UserControls from WinForms and can then have them created with the CreateControl() method and displayed in another application. But now I wanted to try this with WPF. But there I can't find a way to create the UserControl and then get the corresponding handle.

I tried it with

HwndSource hwndSource = PresentationSource.FromVisual(Control) as HwndSource;  

if (hwndSource != null)  
{  
    handle = hwndSource.Handle;  
} 

but i got no handle.

Then there is this possibility, which theoretically works, but only for Windows

IntPtr handle = new WindowInteropHelper(myWindow).EnsureHandle();

Normal Usage with WinForms Controls on a Sample:

MyCoolControl control = new MyCoolControl();
control.CreateControl();

SendHandleToSomethingElse(control.Handle.ToInt32());

and now i need this for WPF:D

Answer 1

Unlike a Windows Forms control, a WPF control doesn't have its own HWND handle.

In WPF only the top-level window has a handle and the controls are rendered as content inside this HWND.

Please refer to the docs for more information about how WPF uses HWNDs.