LR通过VC++调用C#中的方法

前提：.net的DLL被包装成COM接口，提供dll文件外，还有tlb文件。

 

 

1、  注册.net的DLL

在Regasm所在目录下执行

Regasm c:/ Encryptcom.dll /tlb: c:/ Encryptcom.tlb

regasm.exe c:/ Encryptcom.dll /tlb /codebase

 

2、  VC++中用ClassWizaed导入.net的类文件

3、  包装类中方法，并用C格式返回

extern "C"

{

         //用DES算法加密，并转换成Base64码

         _declspec(dllexport) char* ng_encode(char* str,char* str2)

         {

                   char* ret;

                   strcat(str,str2);

                   CoInitialize(NULL);

                   IEncryptFacade foo;  

                   if(foo.CreateDispatch("EncryptCom.EncryptFacade")!=0)  

                   {

                            ret = foo.TripleDesEncryptToBase64(str);

                            foo.ReleaseDispatch();  

                   }

                   CoUninitialize();

 

                   return ret;

         }

         //从一个Base64串，通过转换再DES解码

         _declspec(dllexport) char* ng_deencode(char* str)

         {

                   char* ret;

                   CoInitialize(NULL);

                   IEncryptFacade foo;  

                   if(foo.CreateDispatch("EncryptCom.EncryptFacade")!=0)  

                   {

                            ret = foo.TripleDesDecryptFromBase64(str);

                            foo.ReleaseDispatch();  

                   }

                   CoUninitialize();

                   return ret;

         }

}

在LR脚本中即可使用ng_encode或ng_deencode函数。