请版主帮我看看程序如何修改

li343

一个编码器的数据采集程序，用VC调用VB编写的DLL出错。错误提示如下： Test.cpp C:\Documents and Settings\Owner.LENOVO-52CEDA01\桌面\Test.cpp(23) : error C2664: 'readGAM60Value' : cannot convert parameter 1 from 'char [9]' to 'unsigned short ** '         Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast Error executing cl.exe. VB编写的DLL见附件。 程序代码： #include <stdio.h> // This is the path for your DLL. // Make sure that you specify the exact path. #import "d:\project1.dll"  no_namespace void main() {        BSTR bstrDesc;        try        {             CoInitialize(NULL);             // Declare the Interface Pointer for your Visual Basic object. here,             // _Class1Ptr is the Smart pointer wrapper class representing the             // default interface of the Visual Basic object.             _Class1Ptr ptr;             // Create an instance of your Visual Basic object, here             // __uuidof(Class1) gets the CLSID of your Visual Basic object.             ptr.CreateInstance(__uuidof(Class1));             double jiaodu =ptr->readGAM60Value("2330300D");       }       catch(_com_error &e)       {            bstrDesc = e.Description();         }              CoUninitialize(); }

[ 本帖最后由 li343 于 2009-9-28 14:25 编辑 ]