SDL_PROP_GAMEPAD_CAP_RUMBLE_BOOLEAN

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C) nothrow @nogc
enum SDL_PROP_GAMEPAD_CAP_RUMBLE_BOOLEAN = SDL_PROP_JOYSTICK_CAP_RUMBLE_BOOLEAN;

Meta