Reference Manual - 1.0.0
IDirectFB   EnumInputDevices

Enumerate all existing input devices.

EnumInputDevices (
  IDirectFB   * thiz,
  DFBInputDeviceCallback   callback,
  void   * callbackdata
);

Calls the given callback for all available input devices. The callback is passed the device id that can be used to retrieve an interface on a specific device using IDirectFB::GetInputDevice().