C++Qt开机自启动

方法一：注册表

#include <QtCore/QCoreApplication>
#include <QtCore/QSettings>
#include <QtCore/QDebug>
#include <QtCore/QProcess>

int main(int argc, char *argv[])
{
	QCoreApplication app(argc, argv);

    // 获取当前程序的路径
    QString appPath = QCoreApplication::applicationFilePath();
	appPath.replace("/", "\\");
	appPath = "\"" + appPath + "\"";
    // 设置开机自启动
    QSettings settings("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run", QSettings::NativeFormat);
    settings.setValue("MyApp", QVariant(appPath));

    // 查看是否设置成功
    qDebug() << "Is auto start enabled?" << settings.contains("MyApp");

    // 取消开机自启动
    settings.remove("MyApp");

    // 查看是否取消成功
    qDebug() << "Is auto start disabled?" << !settings.contains("MyApp");
}

设置的启动项路径字符串需包含双引号 “ ” ，否则无效、开机无法自启动！！！

方法二：快捷方式到自启动目录

//获取当前windows登录的用户名
std::string GetWindowsUserName()
{
  const int MAX_LEN = 100;
  char szBuffer[MAX_LEN];
  DWORD len = MAX_LEN;
  if (GetUserName(szBuffer, &len))
    return szBuffer;
  else
    return "";
}

int main(int argc, char *argv[])
{
  std::string str = GetWindowsUserName();
  //自启动目录
  QString shortcutFilePath = "C:/Users/" + QString::fromStdString(str) + "/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Startup/" + "ZH500.lnk";
  //exe文件目录
  QString appPath = QCoreApplication::applicationFilePath();
  QFile fApp(appPath);
  fApp.link(shortcutFilePath);	//生成快捷方式
}

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