Windows 获取进程ID

冷不防 2022-05-18 10:47 396阅读 0赞

DWORD GetProcessID(const char *ProcessName)
    {
        PROCESSENTRY32 pe32;
    
        pe32.dwSize = sizeof(PROCESSENTRY32);
    
        //获取进程快照
        HANDLE hProcessSnap = ::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
        if (hProcessSnap == INVALID_HANDLE_VALUE)
        {
            printf("CreateToolhelp32Snapshot 调用失败.\n");
            return -1;
        }
    
        //遍历进程快照，轮流显示每个进程的信息
        BOOL bMore = ::Process32First(hProcessSnap, &pe32);
        while (bMore)
        {
            printf("进程名称：%ls\n", pe32.szExeFile); //这里得到的应该是宽字符，用%ls,不然无法正常打印
            printf("进程ID：%u\n\n", pe32.th32ProcessID);
            if (lstrcmp(pe32.szExeFile, ProcessName) == 0)
            {
                break;
            }
    
            bMore = ::Process32Next(hProcessSnap, &pe32);
        }
    
        //不要忘记清除掉snapshot对象
        ::CloseHandle(hProcessSnap);
    
        return pe32.th32ProcessID;
    }
    
    int main()
    {
        DWORD ID;
        const char *name = "sscom32.exe";
    
        ID = GetProcessID(name);
    
        printf("GetProcessId %s %u\n", name, ID);
    
        while (1);
    
        return 0;
    }

**需要配置**  
![1][]  
**或者**

DWORD GetProcessID(LPCWSTR ProcessName)
    {
        PROCESSENTRY32 pe32;
    
        pe32.dwSize = sizeof(PROCESSENTRY32);
    
        //获取进程快照
        HANDLE hProcessSnap = ::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
        if (hProcessSnap == INVALID_HANDLE_VALUE)
        {
            printf("CreateToolhelp32Snapshot 调用失败.\n");
            return -1;
        }
    
        //遍历进程快照，轮流显示每个进程的信息
        BOOL bMore = ::Process32First(hProcessSnap, &pe32);
        while (bMore)
        {
            //printf("进程名称：%ls\n", pe32.szExeFile); //这里得到的应该是宽字符，用%ls,不然无法正常打印
            //printf("进程ID：%u\n\n", pe32.th32ProcessID);
            if (lstrcmp(pe32.szExeFile, ProcessName) == 0)
            {
                break;
            }
    
            bMore = ::Process32Next(hProcessSnap, &pe32);
        }
    
        //不要忘记清除掉snapshot对象
        ::CloseHandle(hProcessSnap);
    
        return pe32.th32ProcessID;
    }
    
    int main()
    {
        DWORD ID;
        LPCWSTR name = _T("sscom32.exe");
    
        ID = GetProcessID(name);
    
        printf("GetProcessId %ls %u\n", name, ID);
    
        while (1);
    
        return 0;
    }

[1]: /images/20220518/f512972a3f3b47be985b4b313a2f2f06.png