c# form捕获关机消息问题～～在线等急～～

Question

protected override void WndProc(ref System.Windows.Forms.Message m)      
          {              
              try          
              {              
                  switch(m.Msg)              
                  {                                         
                      case WM_QUERYENDSESSION:                          
                          m.Result = (IntPtr)WM_TRUE;                          
                          return;                          
                      //休眠事件处理                                          
                      case WM_POWERBROADCAST :                          
                       if (m.WParam == (IntPtr)PBT_APMQUERYSUSPEND)                          
                          {                              
                                                 
                          }                      
                          break;                      
                      default:                  
                          break;              
                  }                  
                  base.WndProc (ref m);              
              }                          
              catch(Exception e)          
              {                  
                  MessageBox.Show(e.Message);      
              }      
          } 

Answer 1

你这个问题问的已经不是问题了你可以让Form2获得消息后通知Form1不就ok了么

Answer 2

protected override void WndProc(ref   Message m)
        {
            switch (m.Msg)
            {
                case 0x0011:
                    MessageBox.Show("想要关机，先关闭本程序");
                    m.Result = (IntPtr)0;
                    break;
                default:
                    base.WndProc(ref m);
                    break;
            }
        }

Answer 3

如果是默认Form2，可以先在Form2得到关机消息再通知Form1的吧

Answer 4

关键问题是怎么通知Form1？不会啊，大哥们帮帮忙～～～～

Answer 5

老问题了。直接在窗体的Close事件中，判断e.CloseResion是否是ShutDown哪项即可。

Answer 6

Microsoft.Win32.SystemEvents.SessionEnded
或
Microsoft.Win32.SystemEvents.SessionEnding
事件

Answer 7

 //截获系统关机消息
        private bool isExitApp = false;
        private const int WM_QUERYENDSESSION = 0x0011;
        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
                case WM_QUERYENDSESSION:
                    isExitApp = true;
                    Application.Exit();
                    base.WndProc(ref m); 
                    break;
                default:
                    base.WndProc(ref m);
                    break;
            }        }将这段代码加到程序中，在系统关机时，程序先关闭，系统再关闭，够全了吧。