下面來看一個VC++根據(jù)explorer.exe進程檢測用戶是否已登錄,希望例子能幫助到各位。

代碼如下

void CALLBACK timeCall(UINT timeid, UINT umsg, DWORD_PTR dwUser, DWORD dw1, DWORD_PTR dw2)

{

DWORD dwSessionId = WTSGetActiveConsoleSessionId(); //獲取控制臺的session

HANDLE hSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); //為創(chuàng)建環(huán)境快照

if (hSnap == INVALID_HANDLE_VALUE)

return;

//遍歷快照，通過快照的 procEntry.szExeFile 獲取應用程序名字,從而取得相應的PID

PROCESSENTRY32 procEntry;

procEntry.dwSize = sizeof(PROCESSENTRY32);

Process32First(hSnap, &procEntry);

DWORD dwExplorerPid = -1;

do

{

if (strcmp(procEntry.szExeFile, "explorer.exe") == 0)

{

DWORD dwExplorerSessId = 0;

if (ProcessIdToSessionId(procEntry.th32ProcessID, &dwExplorerSessId) && dwExplorerSessId == dwSessionId)

{

dwExplorerPid = procEntry.th32ProcessID;

break;

}

}

} while (Process32Next(hSnap, &procEntry));

LOG_INFO("檢測用戶是否已經(jīng)登錄 : %s", (dwExplorerPid == -1) ? "未登錄" : "已經(jīng)登錄");

if (dwExplorerPid != -1)

{

//已登錄

DoSomething();

}

}

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