Question

是否有可能检测到Application.Exit被调用或是否有win32函数来了解窗口何时关闭程序，因为关闭或任何事情。没有表格。

Answer 1

有关WM_QUERYENDSESSION和WM_ENDSESSION消息的MSDN文档，请参阅; WM_ENDSESSION消息的参数将告诉您应用程序是正常退出还是Windows正在关闭。您可以通过覆盖表单中的WndProc方法来处理这些消息，如：

public partial class MainForm : Form
{
    private const int WM_ENDSESSION = 0x0016;
    private const uint ENDSESSION_CLOSEAPP = 0x1;
    private const uint ENDSESSION_CRITICAL = 0x40000000;
    private const uint ENDSESSION_LOGOFF = 0x80000000;
    protected override void WndProc(ref Message m)
    {
        if (m.Msg == WM_ENDSESSION)
        {
            var sessionEnding = m.WParam.ToInt32() != 0;

            if ((m.LParam.ToInt64() & ENDSESSION_CLOSEAPP) == ENDSESSION_CLOSEAPP)
            {
                // App closing
            }
            if ((m.LParam.ToInt64() & ENDSESSION_CRITICAL) == ENDSESSION_CRITICAL)
            {
                // Critical error
            }
            if ((m.LParam.ToInt64() & ENDSESSION_LOGOFF) == ENDSESSION_LOGOFF)
            {
                // User logging off
            }

            m.Result = IntPtr.Zero;
        }
        else
        {
            base.WndProc(ref m);
        }
    }
}

Answer 2

这个怎么样？

     AppDomain.CurrentDomain.ProcessExit += CurrentDomain_ProcessExit;

然后

  /// <summary>
  /// Method called when the process is exiting.
  /// </summary>
  private static void CurrentDomain_ProcessExit(object sender, EventArgs e)
  {
     // do something
  }

C＃Windows程序退出请求（检测Application.Exit）无表格

2 个答案: