internal static extern ErrorCode gp_camera_get_about(HandleRef camera, out CameraText about, HandleRef context);
internal static extern ErrorCode gp_camera_get_summary(HandleRef camera, out CameraText summary, HandleRef context);
internal static extern ErrorCode gp_camera_get_manual(HandleRef camera, out CameraText manual, HandleRef context);
internal static extern ErrorCode gp_camera_get_about (HandleRef camera, out CameraText about, HandleRef context);
internal static extern ErrorCode gp_camera_get_summary (HandleRef camera, out CameraText summary, HandleRef context);
internal static extern ErrorCode gp_camera_get_manual (HandleRef camera, out CameraText manual, HandleRef context);