In order to continue supporting older controllers, we're trying to maintain our DirectInput8-based input handling system while building a D3D10 renderer. Unfortunately, once we've created a D3D10 device, the ConfigureDevices function returns an error "Class not registered". ConfigureDevices works fine with a D3D9 device on Vista, just not with D3D10. I'm passing in NULL for the LPDICONFIGUREDEVICESCALLBACK parameter, depending instead on the default behavior - could the reason this function is failing be related to the default behavior not working with D3D10?

Is this a known issue? Is there a workaround? I'd rather not implement our own LPDICONFIGUREDEVICESCALLBACK if we can get away with it.

Tim Preston