#include "mainwindow.h" #include <QApplication> #include <windows.h> #include <wtsapi32.h> #pragma comment(lib, "Wtsapi32.lib") int main(int argc, char *argv[]) { QApplication a(argc, argv); HANDLE hToken = NULL; DWORD dwSessionId = WTSGetActiveConsoleSessionId(); if (!WTSQueryUserToken(dwSessionId, &hToken)) { QMessageBox::warning(nullptr, QStringLiteral("错误"), QStringLiteral("获取用户令牌失败！")); return -1; } HANDLE mutex = ::CreateMutex(Q_NULLPTR, true, (LPCWSTR)qApp->applicationName().toStdWString().c_str()); if (GetLastError() == ERROR_ALREADY_EXISTS) { QMessageBox warningBox(QMessageBox::Warning, QStringLiteral("警告"), QStringLiteral("程序[文本数据同步服务端]只能运行一个！")); warningBox.setButtonText(QMessageBox::Ok, QStringLiteral("确定")); warningBox.setStandardButtons(QMessageBox::Ok); warningBox.exec(); ::CloseHandle(mutex); return 0; } else { ::ReleaseMutex(mutex); } STARTUPINFO si; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); si.lpDesktop = (LPWSTR)L"winsta0\\default"; PROCESS_INFORMATION pi; ZeroMemory(&pi, sizeof(pi)); if (!CreateProcessAsUser(hToken, NULL, (LPWSTR)qApp->applicationFilePath().toStdWString().data(), NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi)) { QMessageBox::warning(nullptr, QStringLiteral("错误"), QStringLiteral("创建进程失败！")); CloseHandle(hToken); return -1; } CloseHandle(hToken); MainWindow w; w.show(); return a.exec(); } 以上QT C++代码会报出以下错误： D:\QtProject\DataServer\main.cpp:-1: error: undefined reference to `WTSQueryUserToken@8' collect2.exe:-1: error: error: ld returned 1 exit status 请修复后给我完整代码

请注意，代码中使用了Wtsapi32库，需要在.pro文件中添加LIBS += -lWtsapi32。

以下是修复后的完整代码：

#include "mainwindow.h"
#include <QApplication>
#include <windows.h>
#include <wtsapi32.h>
#include <QMessageBox>

#pragma comment(lib, "Wtsapi32.lib")

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    HANDLE hToken = NULL;
    DWORD dwSessionId = WTSGetActiveConsoleSessionId();
    if (!WTSQueryUserToken(dwSessionId, &hToken)) {
        QMessageBox::warning(nullptr, QStringLiteral("错误"), QStringLiteral("获取用户令牌失败！"));
        return -1;
    }

    HANDLE mutex = ::CreateMutex(Q_NULLPTR, true, (LPCWSTR)qApp->applicationName().toStdWString().c_str());
    if (GetLastError() == ERROR_ALREADY_EXISTS) {
        QMessageBox warningBox(QMessageBox::Warning, QStringLiteral("警告"), QStringLiteral("程序[文本数据同步服务端]只能运行一个！"));
        warningBox.setButtonText(QMessageBox::Ok, QStringLiteral("确定"));
        warningBox.setStandardButtons(QMessageBox::Ok);
        warningBox.exec();
        ::CloseHandle(mutex);
        return 0;
    }
    else {
        ::ReleaseMutex(mutex);
    }

    STARTUPINFO si;
    ZeroMemory(&si, sizeof(si));
    si.cb = sizeof(si);
    si.lpDesktop = (LPWSTR)L"winsta0\\default";

    PROCESS_INFORMATION pi;
    ZeroMemory(&pi, sizeof(pi));

    if (!CreateProcessAsUser(hToken, NULL, (LPWSTR)qApp->applicationFilePath().toStdWString().data(), NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi)) {
        QMessageBox::warning(nullptr, QStringLiteral("错误"), QStringLiteral("创建进程失败！"));
        CloseHandle(hToken);
        return -1;
    }

    CloseHandle(hToken);

    MainWindow w;
    w.show();

    return a.exec();
}