public bool TestDevice()
{
bool result = false;
SharpDX.Result hr = SharpDX.Result.Fail;
if (device != null)
{
hr = device.TestCooperativeLevel();
}
result = (texture2D11 != null && !texture2D11.IsDisposed) && hr.Success && (surface?.NativePointer != IntPtr.Zero);
return(result);
}