Microsoft always feels free to change undocumented APIs whenever they feel like it. I do need to emphasize that this code is not something you want to commit to in a product. I can't read much of the Russian in his blog post, but his C++ code was pretty accurate. I've written some C# code based on the reverse-engineering work done by NickoTin. Unfortunately, this is not nearly enough to accomplish anything useful. IVirtualDesktopManager::MoveWindowToDesktop allows you to move a window to a specific virtual desktop. IVirtualDesktopManager::GetWindowDesktopId allows you to retrieve the ID of a virtual desktop, based on a window that is already assigned to that desktop. Programmatic access to the virtual desktop feature is very limited, as Microsoft has only exposed the IVirtualDesktopManager COM interface. It includes the API to detect on which desktop the Window is shown and it can switch and move a Windows the a Desktop.

If ((hr = manager.MoveWindowToDesktop(TopLevelWindow, CurrentDesktop)) != 0) Public void MoveWindowToDesktop(IntPtr TopLevelWindow, Guid CurrentDesktop) If ((hr = manager.GetWindowDesktopId(TopLevelWindow, out result)) != 0) Public Guid GetWindowDesktopId(IntPtr TopLevelWindow) If ((hr = manager.IsWindowOnCurrentVirtualDesktop(TopLevelWindow, out result)) != 0) Public bool IsWindowOnCurrentVirtualDesktop(IntPtr TopLevelWindow)

Private CVirtualDesktopManager cmanager = null Manager = (IVirtualDesktopManager)cmanager The Windows SDK Support Team Blog posted a C# demo to switch Desktops via IVirtualDesktopManager:

Close all virtual desktops windows 10