sdlxGetJoystickSensorData function joystick

List<double> sdlxGetJoystickSensorData(Pointer<SdlJoystick> joystick, int type, int numValues)

Get the current state of a joystick sensor.

The number of values and interpretation of the data is sensor dependent. See the remarks in SDL_SensorType for details for each type of sensor.

\param joystick the joystick to query. \param type the type of sensor to query. \param data a pointer filled with the current sensor state. \param num_values the number of values to write to data. \returns true on success or false on failure; call SDL_GetError() for more information.

\threadsafety It is safe to call this function from any thread.

\since This function is available since SDL 3.6.0.

extern SDL_DECLSPEC bool SDLCALL SDL_GetJoystickSensorData(SDL_Joystick *joystick, SDL_SensorType type, float *data, int num_values)

See also:

• SDL_GetJoystickSensorData - SDL3 Wiki

Implementation

List<double> sdlxGetJoystickSensorData(
  Pointer<SdlJoystick> joystick,
  int type,
  int numValues,
) {
  final data = <double>[];
  final dataPointer = ffi.calloc<Float>(numValues);
  final bl = sdlGetJoystickSensorData(joystick, type, dataPointer, numValues);
  if (bl) {
    for (var i = 0; i < numValues; i++) {
      data.add(dataPointer[i]);
    }
  }
  dataPointer.callocFree();
  return data;
}