如何检测区分外部 wm_close 与 form.close() 内部触发

发布于 2024-11-27 12:14:56 字数 716 浏览 0 评论 0原文

这是一个 C# 应用程序，作为通知图标位于托盘中，并执行其操作，直到有人右键单击它并选择关闭（菜单选项），或者它从外部应用程序或操作系统（例如在重新启动期间）获取 wm_close。

protected override void WndProc(ref Message m)
{
   case  Win32.WmClose:
  //recvd message to shutdown
   Program.Log.InfoFormat("Shutdown received at {0}", DateTime.Now);
   CleanUp();
   this.Close(); //this is the main form
   break;

   //other case statements here
}

//somewhere else on menu exit of notify icon
 private void toolStripMenuItemExit_Click(object sender, EventArgs e)
 {
        Program.Log.InfoFormat("Manual EXIT at {0}", DateTime.Now);
        CleanUp();
        this.Close(); //this is the main form
 }

this.close() 触发另一个 WM_CLOSE，使应用程序陷入混乱。处理这种情况的正确方法是什么？谢谢

原文

This is a C# app that sits in the tray as a notifyicon and does its stuff until someone right clicks it and selects close (menu option) or it gets a wm_close from an external app or by the operating system say during a reboot.

protected override void WndProc(ref Message m)
{
   case  Win32.WmClose:
  //recvd message to shutdown
   Program.Log.InfoFormat("Shutdown received at {0}", DateTime.Now);
   CleanUp();
   this.Close(); //this is the main form
   break;

   //other case statements here
}

//somewhere else on menu exit of notify icon
 private void toolStripMenuItemExit_Click(object sender, EventArgs e)
 {
        Program.Log.InfoFormat("Manual EXIT at {0}", DateTime.Now);
        CleanUp();
        this.Close(); //this is the main form
 }

The this.close() triggers another WM_CLOSE sending the app in a tailspin. What is the correct way to handle this situation ? thank you

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若水般的淡然安静女子 2024-12-04 12:14:56

处理表单 Closing 事件。每当您想退出时，只需调用 Close();，并使任何其他操作依赖于关闭事件内的关闭，而不是在 WndProc 和 toolStripMenuItemExit_Click 处处理它，所以：

private void OnFormCloseing(object sender, FormClosingEventArgs e)
{
    string reason = string.Empty;
    switch (e.CloseReason)
    {
        case CloseReason.UserClosing:
            reason = "Manual EXIT";
            break;

        case CloseReason.WindowsShutDown:
            reason = "Shutdown received";
            break;
    }
    Program.Log.InfoFormat(reason + " at {0}", DateTime.Now);
    CleanUp();
}

private void toolStripMenuItemExit_Click(object sender, EventArgs e)
{
    this.Close(); //this is the main form
}

CloseReason 的更多成员此处。

Handle form Closing event. and whenever you want to exit just call Close();, and make any other operation rely on closing inside the closing event instead of handling it at WndProc and toolStripMenuItemExit_Click, so:

private void OnFormCloseing(object sender, FormClosingEventArgs e)
{
    string reason = string.Empty;
    switch (e.CloseReason)
    {
        case CloseReason.UserClosing:
            reason = "Manual EXIT";
            break;

        case CloseReason.WindowsShutDown:
            reason = "Shutdown received";
            break;
    }
    Program.Log.InfoFormat(reason + " at {0}", DateTime.Now);
    CleanUp();
}

private void toolStripMenuItemExit_Click(object sender, EventArgs e)
{
    this.Close(); //this is the main form
}

More members of CloseReason here.

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