This function allows you to set the state of processing certain events.
Returns 0 on success or -1 if the event couldn't be pushed.
If 'state' is set to SDL_IGNORE, that event will be automatically dropped from the event queue and will not be filtered.
If 'state' is set to SDL_ENABLE, that event will be processed normally.
If 'state' is set to SDL_QUERY, SDL_EventState will return the current processing state of the specified event type.
A list of event type's can be found in the Sdl.SDL_Event section.
Sdl Class | Tao.Sdl Namespace | Sdl.SDL_Event