如何向windows投递暂停关机消息

/constants needed, form level

 

private const System.Int32 WM_QUERYENDSESSION = 0x11;

 

private const System.Int32 WM_CANCELMODE = 0x1f;

//the sub to intercept the windows messages

protected override void WndProc(ref Message ex)

{

if (ex.Msg == WM_QUERYENDSESSION)

{

//cancel the message

Message MyMsg = new Message();

MyMsg.Msg = WM_CANCELMODE;

base.WndProc(MyMsg);

}

else

{

//send the message as normal

base.WndProc(ex);

}

}

 

 

---

小中中的學習筆記
//constants needed, form level

 

private const System.Int32 WM_QUERYENDSESSION = 0x11;

 

private const System.Int32 WM_CANCELMODE = 0x1f;

//the sub to intercept the windows messages

protected overridevoid WndProc(ref Message ex)

{

  if (ex.Msg == WM_QUERYENDSESSION)

  {

    //cancel the message

    Message MyMsg = new Message();

    MyMsg.Msg = WM_CANCELMODE;

    base.WndProc(ref MyMsg);

  }

  else

  {

    //send the message as normal

    base.WndProc(ref ex);

  }

}

vs2008要修改下就可以了

• 已标记为答案ybgjj2009 2010年8月3日 7:36
•  

• 回复
• 引用

 

全部回复

• 2010年8月2日 5:28ShuhaiMSFT

   
  

  0

  登录进行投票

  你可以使窗体类继承Control.WndProc，然后响应WM_QUERYENDSESSION事件，比如

  'constants needed, form level
  Private Const WM_QUERYENDSESSION As System.Int32 = &H11
  Private Const WM_CANCELMODE AsSystem.Int32 = &H1F

   

  'the sub to intercept the windows messages
  Protected Overrides Sub WndProc(ByRef ex As Message)
  If ex.Msg = WM_QUERYENDSESSION Then
  'cancel the message
  Dim MyMsg As New Message
  MyMsg.Msg = WM_CANCELMODE
  MyBase.WndProc(MyMsg)
  Else
  'send the message as normal
  MyBase.WndProc(ex)
  End If
  End Sub

  • 回复
  • 引用

   
• 2010年8月3日 1:13ybgjj2009

   
  

  0

  登录进行投票

  你可以使窗体类继承Control.WndProc，然后响应WM_QUERYENDSESSION事件，比如

   

  'constants needed, form level

   

  Private Const WM_QUERYENDSESSION As System.Int32 = &H11

  Private Const WM_CANCELMODE As System.Int32 = &H1F

   

  'the sub to intercept the windows messages

  Protected Overrides Sub WndProc(ByRef ex As Message)

  If ex.Msg = WM_QUERYENDSESSION Then

  'cancel the message

  Dim MyMsg As New Message

  MyMsg.Msg = WM_CANCELMODE

  MyBase.WndProc(MyMsg)

  Else

  'send the message as normal

  MyBase.WndProc(ex)

  End If

  End Sub

   

   

  
  vb的代码.........
  • 回复
  • 引用

   
• 2010年8月3日 3:22Albert Chang 張振中

   
  

  0

  登录进行投票

  //constants needed, form level
  private constSystem.Int32 WM_QUERYENDSESSION = 0x11;

   

  private const System.Int32 WM_CANCELMODE = 0x1f;
  //the sub to intercept the windows messages
  protected override void WndProc(ref Message ex)
  {
  if (ex.Msg == WM_QUERYENDSESSION)
  {
  //cancel the message
  Message MyMsg = new Message();
  MyMsg.Msg = WM_CANCELMODE;
  base.WndProc(MyMsg);
  }
  else
  {
  //send the message as normal
  base.WndProc(ex);
  }
  }

   

  ---

  小中中的學習筆記
  • 回复
  • 引用

   
• 2010年8月3日 7:35ybgjj2009

   
  

  0

  登录进行投票

  //constants needed, form level

   

  private const System.Int32 WM_QUERYENDSESSION = 0x11;

   

  private const System.Int32 WM_CANCELMODE = 0x1f;

  //the sub to intercept the windows messages

  protected override void WndProc(ref Message ex)

  {

  if (ex.Msg == WM_QUERYENDSESSION)

  {

  //cancel the message

  Message MyMsg = new Message();

  MyMsg.Msg = WM_CANCELMODE;

  base.WndProc(MyMsg);

  }

  else

  {

  //send the message as normal

  base.WndProc(ex);

  }

  }

   

   

  ---

  小中中的學習筆記

  
  //constants needed, form level

   

  private const System.Int32 WM_QUERYENDSESSION = 0x11;

   

  private const System.Int32 WM_CANCELMODE = 0x1f;

  //the sub to intercept the windows messages

  protected overridevoid WndProc(ref Message ex)

  {

    if (ex.Msg == WM_QUERYENDSESSION)

    {

      //cancel the message

      Message MyMsg = new Message();

      MyMsg.Msg = WM_CANCELMODE;

      base.WndProc(ref MyMsg);

    }

    else

    {

      //send the message as normal

      base.WndProc(ref ex);

    }

  }

  vs2008要修改下就可以了