Retrieve the white balance mode from the camera.
camera_error_t camera_get_whitebalance_mode(camera_handle_t handle, camera_whitebalancemode_t *mode)
The handle returned by a call to the camera_open() function.
A pointer that is updated with the current auto white balance mode of the camera.
The white balance mode of the camera is returned in from the mode argument that you pass to this function.
CAMERA_OK when the function successfully completes, otherwise another camera_error_t value that provides the reason that the call failed.