Krugpelke

Can't create control using dedicated GPU when display is plugged into integrated GPU

10

GPU - Intel UHD Graphics 630 GLWpfControl - 4.0.0 - 4.3.2 Can't create GLWpfControl, `DXOpenDeviceNV` returns an empty `GLDeviceHandle`, `DXInterop.GetLastError` shows -1073283022 and `Marshal.GetLastWin32Error` shows 0, so not sure why...

This fixes a couple of things related to `DXGLContext` dispose: - A call to `DXCloseDeviceNV` with an empty `GLDeviceHandle` crashes with AccessViolationException. This checks if `GLDeviceHandle` isn't empty beforehand. -...