.NET Framework 4.6 and 4.5
Gets the window handle for the HwndSource. The window handle is packaged as part of a HandleRef structure.
public HandleRef CreateHandleRef()
You can use the handle that is obtained from CreateHandleRef to reference the HwndSource from Win32 code. Use the handle for operations such as message handling and window behavior.
To get just the handle, use Handle.
Supported in: 4.6, 4.5, 4, 3.5, 3.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1