Error in the application.
-2005530516 (D3DERR_INVALIDCALL)
at Microsoft.DirectX.Direct3D.Texture.LockRectangleInternal(Int32 level, tagRECT* rect, LockFlags flags)
at Microsoft.DirectX.Direct3D.Texture.LockRectangleInternal(Int32 level, tagRECT* rect, LockFlags flags, Int32& pitch)
at...