multimap实例 -- 添加、遍历数据

#pragma warning(disable:4786)
#include <map>
using namespace std ;

typedef HANDLE (WINAPI *_OPENTHREAD)(DWORD, BOOL, DWORD);//动态调用Dll

multimap<DWORD, HANDLE> m_ProcessThread;//定义multimap

//挂起进程
void CXTDlg::OnProcessSuspend() 
{
    //获取当前选中进程（ListCtrl）
    POSITION pos = m_ctrlProcessList.GetFirstSelectedItemPosition();
    int nIndex = m_ctrlProcessList.GetNextSelectedItem(pos);

    //读取进程ID
    DWORD dwProcessID = 0;
    char szTmp[MAX_PATH] = {0};
    m_ctrlProcessList.GetItemText(nIndex, 1, szTmp, MAX_PATH);
    dwProcessID = strtoul(szTmp, NULL, 10);

    //获取指定进程的线程快照
    HANDLE hThreadSnap = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, dwProcessID); 
    if (hThreadSnap == INVALID_HANDLE_VALUE) 
    {
        return; 
    }
    
    //遍历线程
    THREADENTRY32 te32 = {0};
    te32.dwSize = sizeof(THREADENTRY32); 
    if (Thread32First(hThreadSnap, &te32)) 
    { 
        do 
        { 
            if (te32.th32OwnerProcessID == dwProcessID)
            {
                //挂起线程
                HMODULE hDll = LoadLibrary("Kernel32.dll");
                _OPENTHREAD OpenThread = (_OPENTHREAD)GetProcAddress(hDll, "OpenThread");
                HANDLE hThread = OpenThread(THREAD_ALL_ACCESS, FALSE, te32.th32ThreadID);
                SuspendThread(hThread);

                //存储线程句柄
                m_ProcessThread.insert(multimap<DWORD, HANDLE>::value_type(dwProcessID, hThread));
            }
        } 
        while (Thread32Next(hThreadSnap, &te32)); 
    } 
    else 
    {
        return;;
    }
    
    //释放快照资源
    CloseHandle (hThreadSnap); 
}


//恢复进程
void CXTDlg::OnProcessResume() 
{
    //获取当前选中进程
    POSITION pos = m_ctrlProcessList.GetFirstSelectedItemPosition();
    int nIndex = m_ctrlProcessList.GetNextSelectedItem(pos);

    //读取进程ID
    DWORD dwProcessID = 0;
    char szTmp[MAX_PATH] = {0};
    m_ctrlProcessList.GetItemText(nIndex, 1, szTmp, MAX_PATH);
    dwProcessID = strtoul(szTmp, NULL, 10);

    //遍历multimap，获取线程句柄
    typedef multimap<DWORD, HANDLE>::iterator multiMapItor;
    pair<multiMapItor,multiMapItor> doubleIter = m_ProcessThread.equal_range(dwProcessID);
    while(doubleIter.first != doubleIter.second)
    {
        if (doubleIter.first->second)
        {
            //恢复线程
            ResumeThread(doubleIter.first->second);
            //释放线程资源
            CloseHandle(doubleIter.first->second);
            doubleIter.first->second = NULL;
        }
        ++doubleIter.first;
    }    
}