如何在HTCAPTION上捕捉鼠標移動

Question

我有一個表單將其所有背景設置爲以下源代碼的HTCAPTION。

protected override void WndProc(ref Message m) 
    { 
     base.WndProc(ref m); 

     switch(m.Msg) 
     { 
      case Global.WM_NCHITTEST: 
       Point mouseCursor = PointToClient(Cursor.Position); 

       if (mouseCursor.X < borderSize && mouseCursor.Y < borderSize) 
        m.Result = (IntPtr)Global.HTTOPLEFT; 
       else if (mouseCursor.X < borderSize && mouseCursor.Y > Height - borderSize) 
        m.Result = (IntPtr)Global.HTBOTTOMLEFT; 
       else if (mouseCursor.X < borderSize) 
        m.Result = (IntPtr)Global.HTLEFT; 
       else if (mouseCursor.X > Width - borderSize && mouseCursor.Y < borderSize) 
        m.Result = (IntPtr)Global.HTTOPRIGHT; 
       else if (mouseCursor.X > Width - borderSize && mouseCursor.Y > Height - borderSize) 
        m.Result = (IntPtr)Global.HTBOTTOMRIGHT; 
       else if (mouseCursor.X > Width - borderSize) 
        m.Result = (IntPtr)Global.HTRIGHT; 
       else if (mouseCursor.Y < borderSize) 
        m.Result = (IntPtr)Global.HTTOP; 
       else if (mouseCursor.Y > Height - borderSize) 
        m.Result = (IntPtr)Global.HTBOTTOM; 
       else 
        m.Result = (IntPtr)Global.HTCAPTION; 
       break; 
     } 
    } 

問題是，當設置了HTCAPTION時，我無法觸發From.MouseMove事件。

private void FormMain_MouseMove(Object sender, MouseEventArgs e) 
    { 
     Point p = e.Location; 

     Console.WriteLine(p); 
    } 

如何捕捉MouseMove事件？

Answer 1

在VB.net它

MyBase.WndProc(m) 

所以，糾正我，如果我錯了，但在C＃我猜。

this.WndProc(m) 

？ 在你的if語句前加上。