Data instances are Shared between C++ processes

In this paper, the example of C++ process to share data between the implementation of the method to share for your reference. The specific implementation method is as follows:

int main(int argc, char *argv[])  

{  

    //RecursiveDelete("C:\20_128\");  

    //SelfRun("runModel");  

    //Memory sharing between processes & NBSP; < br / >
    LPCTSTR lpName= "hello";  

    LPCTSTR lpContent = "123456";  

    HANDLE hMap = ::OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, lpName);  

    if (NULL == hMap) //Failure to open & NBSP; < br / >
    {  

        //Create & have spent < br / >
        hMap = ::CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_EXECUTE_READWRITE, 0, strlen(lpContent), lpName);  

        if (hMap == NULL)  

        {  

            return -1;  

        }  

        //Write & have spent < br / >
        LPVOID lpBase = ::MapViewOfFile(hMap, FILE_MAP_ALL_ACCESS, 0, 0, 0);  

        strcpy((char*)lpBase, lpContent);  

        printf("write %sn", lpContent);  

    }  

    else  

    {  

        //Open successfully just read & NBSP; < br / >
        LPVOID lpBase = ::MapViewOfFile(hMap, FILE_MAP_ALL_ACCESS, 0, 0, 0);  

        if (lpBase == NULL)  

        {  

            return -1;  

        }  

        printf("read %sn",(char*)lpBase);  

    }  

      

    getchar();  

    return 0;  

}

Hope that the article described in the C++ programming to help you.