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IMethodReturnMessage Interface

Defines the method call return message interface.

Namespace:  System.Runtime.Remoting.Messaging
Assembly:  mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)]
public interface IMethodReturnMessage : IMethodMessage, 
	IMessage

A method call return message represents the response to a method call on an object at the end of the message sink. An IMethodReturnMessage is generated as a result of a method called on a remote object, and is used to return the results of the method call back to the caller.

The following example code shows a custom proxy that overrides RealProxy.Invoke in order to write the return message information to the console.

[PermissionSet(SecurityAction.Demand, Name="FullTrust")]
public class MyProxy : RealProxy
{
   String stringUri;
   MarshalByRefObject myMarshalByRefObject;

   public MyProxy(Type myType): base(myType)
   {
      myMarshalByRefObject = (MarshalByRefObject)Activator.CreateInstance(myType);
      ObjRef myObject = RemotingServices.Marshal(myMarshalByRefObject);
      stringUri = myObject.URI;
   }

   public override IMessage Invoke(IMessage myMessage)
   {
      IMethodCallMessage myCallMessage = (IMethodCallMessage)myMessage;

      IMethodReturnMessage myIMethodReturnMessage =
         RemotingServices.ExecuteMessage(myMarshalByRefObject, myCallMessage);

      Console.WriteLine("Method name : " + myIMethodReturnMessage.MethodName);
      Console.WriteLine("The return value is : " + myIMethodReturnMessage.ReturnValue);

      // Get number of 'ref' and 'out' parameters. 
      int myArgOutCount = myIMethodReturnMessage.OutArgCount;
      Console.WriteLine("The number of 'ref', 'out' parameters are : " +
         myIMethodReturnMessage.OutArgCount);
      // Gets name and values of 'ref' and 'out' parameters. 
      for(int i = 0; i < myArgOutCount; i++)
      {
         Console.WriteLine("Name of argument {0} is '{1}'.",
            i, myIMethodReturnMessage.GetOutArgName(i));
         Console.WriteLine("Value of argument {0} is '{1}'.",
            i, myIMethodReturnMessage.GetOutArg(i));
      }
      Console.WriteLine();
      object[] myObjectArray = myIMethodReturnMessage.OutArgs; 
      for(int i = 0; i < myObjectArray.Length; i++)
         Console.WriteLine("Value of argument {0} is '{1}' in OutArgs",
            i, myObjectArray[i]);
      return myIMethodReturnMessage;
   }
}
public __gc class MyProxy : public RealProxy 
{
	String* stringUri;
	MarshalByRefObject* myMarshalByRefObject;

public:
	MyProxy(Type* myType) : RealProxy(myType) 
	{
		myMarshalByRefObject = dynamic_cast<MarshalByRefObject*>(Activator::CreateInstance(myType));
		ObjRef* myObject = RemotingServices::Marshal(myMarshalByRefObject);
		stringUri = myObject->URI;
	}

public:
	IMessage* Invoke(IMessage* myMessage) 
	{
		IMethodCallMessage* myCallMessage = dynamic_cast<IMethodCallMessage*>(myMessage);

		IMethodReturnMessage* myIMethodReturnMessage =
			RemotingServices::ExecuteMessage(myMarshalByRefObject, myCallMessage);

		Console::WriteLine(S"Method name : {0}", myIMethodReturnMessage->MethodName);
		Console::WriteLine(S"The return value is : {0}", myIMethodReturnMessage->ReturnValue);

		// Get number of 'ref' and 'out' parameters.
		int myArgOutCount = myIMethodReturnMessage->OutArgCount;
		Console::WriteLine(S"The number of 'ref', 'out' parameters are : {0}", __box(myIMethodReturnMessage->OutArgCount));
		// Gets name and values of 'ref' and 'out' parameters.
		for (int i = 0; i < myArgOutCount; i++) {
			Console::WriteLine(S"Name of argument {0} is ' {1}'.",
				__box(i), myIMethodReturnMessage->GetOutArgName(i));
			Console::WriteLine(S"Value of argument {0} is ' {1}'.",
				__box(i), myIMethodReturnMessage->GetOutArg(i));
		}
		Console::WriteLine();
		Object* myObjectArray[] = myIMethodReturnMessage->OutArgs; 
		for (int i = 0; i < myObjectArray->Length; i++)
			Console::WriteLine(S"Value of argument {0} is ' {1}' in OutArgs",
			__box(i), myObjectArray[i]);
		return myIMethodReturnMessage;
	}
};

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

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