[RussianCow]

My understanding is that most modern games use the OS capabilities for drawing their custom cursor to the screen instead of just hiding it and drawing their own with custom code. The reason for this is that you don't want the cursor to lag when the game experiences delays or when the framerate is poor. Off the top of my head, Crysis was an example of a game that did this wrong, as the cursor would get really choppy in game menus when the framerate was poor.