QT 實時監視文件夾

// 監控文件夾
void UpdateService::Monitor()
{
    QString sPluginsPath  = QString("%1/new").arg(QApplication::applicationDirPath());
    m_pluginWatcher = new QFileSystemWatcher();
    m_pluginWatcher->addPath(sPluginsPath);    // 添加監視文件的路徑
    connect(m_pluginWatcher, SIGNAL(directoryChanged(QString)), this,SLOT(TriggerDirectoryChanged(const QString &)));
}

void UpdateService::TriggerDirectoryChanged(const QString &strpath)
{
  //strpath為監視文件路徑  
}

需要添加頭文件

#include <QFileSystemWatcher>