KaiserTom

I believe this to be a duplicate of issue #3301 Both seem to describe the same input issue upon a disconnect. Bluetooth controllers seem to be able to recover, however...

`SDL_GameControllerOpen` returns NULL upon an error. Is that handled anywhere? All I see is `if (gamepadHandle == IntPtr.Zero)` but `IntPtr.Zero` isn't NULL, it's 0. So it looks like if `SDL_GameControllerOpen`...

> `SDL_GameControllerOpen` returns a valid gamepadHandle, not null or 0. Usually, but not all the time. Unless I'm missing or misinterpreting something, per [documentation](https://wiki.libsdl.org/SDL2/SDL_GameControllerOpen). "Returns a gamecontroller identifier or NULL...