使用委托将数据从一个库传递到另一个库，再到应用程序

问：

CameraManager.dll 将静态链接到应用程序。有一个相机 dll（MyCam1.dll），它将根据选定的相机动态加载。

我想将图像传输到主应用程序。我不确定如何在CameraManager.dll中注册委托！我是否需要编写另一个委托来将图像从相机管理器.dll传输到应用程序？

lib1：相机管理器.dll

public Interface ICamera
{
 void InitCam();
 void CloseCam();
 void SetGain();
 void SetBrightness();
}

public class CameraCollection
{
   public void createCamInstance()
   {
        ICamera Camob = instance.InitCam();     
   }
   //load library dynamically.
   public void LoadCamera()
   {
       Assembly DLL = Assembly.LoadFrom(@"c:\MyCam*.dll");
       foreach (Type type in DLL.GetTypes())
       {
            if (type.FullName == "Mycam")
            {
                instance = Activator.CreateInstance(type); 
            }                                                   
       }
   }
}

/////////////////////////////////////////////////////////////

lib2： MyCam1.dll

public delegate void ImageGrabDone(byte[] data);

public class Mycam:ICamera{
     public event ImageGrabDone GrabEvent;

     void ICamera.InitCam()
     {
          //some initialization stuff
     }
     void ImageGrabbed()
     {
      // This function will be called automatically when camera gets triggered.    
      //from Here I want to pass Image/byte[] to CameraManager.dll and from CameraManager to 
      //host application.
     }
}