远程过程调用的返回值 [英] Return value from Remote procedure call

问题描述

大家好

谁能告诉我如何使用rpc将服务器的值或结果返回给客户端.

预先感谢.

Hi all

can any one tell me how i can return value or result from server back to client by using rpc.

thanks in advance.

推荐答案

对不起，我的错误

我正在将Windows XP Professional与Visual Studio 2010 Professional一起使用
我正在使用vc ++开发应用程序.

这是我使用的IDL文件

sorry my mistake

i am using windows XP professional with visual studio 2010 professional
i am using vc++ for developing application.

this is IDL file i use

// File Example1.idl
[
   // A unique identifier that distinguishes this interface from other interfaces.
   uuid(00000001-EAF3-4A7A-A0F2-BCE4C30DA77E),

   // This is version 1.0 of this interface.
   version(1.0)
]
interface Example1 // The interface is named Example1
{
   // A function that takes a zero-terminated string.
   void Output(
      [in, string] const char* szOutput);

   void Output2([out,retval] char *ptrx);

}

我无法在ptrx中获得返回值，有任何建议吗?

i can not obtain return value in ptrx , any suggestion ?

问题已解决

这是具有更改的新IDL

problem solved

here is new IDL with changes

void Output(
      [in, string] unsigned char* szOutput,[out,retval,size_is(100)] unsigned char *ptrx);

   void get_file(
        [in,out] long *total , [in,out] long *pack , [out,retval,size_is(5000)] unsigned char* data );

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