c# Wndproc的使用方法

c# Wndproc的使用方法

?

1 2 3 4 5 6 7 8 9 10 11 12

protected override void WndProc( ref Message m) {      const int WM_SYSCOMMAND = 0x0112;      const int SC_CLOSE = 0xF060;      if (m.Msg == WM_SYSCOMMAND && ( int ) m.WParam == SC_CLOSE)      {          // 屏蔽传入的消息事件          this .WindowState = FormWindowState.Minimized;          return ;       }      base .WndProc( ref m); }

　　

?

1 2 3 4 5 6 7 8 9 10 11 12 13

protected override void WndProc( ref    Message m)          {              const int WM_SYSCOMMAND = 0x0112;              const int SC_CLOSE = 0xF060;              const int SC_MINIMIZE = 0xF020;              if (m.Msg == WM_SYSCOMMAND && (( int )m.WParam == SC_MINIMIZE || ( int )m.WParam == SC_CLOSE))              {                  //最小化到系统栏                 this .Hide();                  return ;              }              base .WndProc( ref    m);          }

重写 WndProc函数来同时实现无标题栏的窗体移动和禁止双击窗体最大化

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

protected override void WndProc( ref Message m)           {               const int WM_NCHITTEST = 0x84;               const int HTCLIENT = 0x01;               const int HTCAPTION = 0x02;               const int WM_SYSCOMMAND = 0x112;               const int SC_MAXMIZE = 0xF030;               const int WM_NCLBUTTONDBLCLK = 0xA3;               switch (m.Msg)               {                   case 0x4e:                   case 0xd:                   case 0xe:                   case 0x14:                       base .WndProc( ref m);                       break ;                   case WM_NCHITTEST: //鼠标点任意位置后可以拖动窗体                                             this .DefWndProc( ref m);                       if (m.Result.ToInt32() == HTCLIENT)                       {                           m.Result = new IntPtr(HTCAPTION);                           return ;                       }                       break ;                   case WM_NCLBUTTONDBLCLK: //禁止双击最大化                       Console.WriteLine( this .WindowState);                                                 return ;                                              break ;                     default :                                             base .WndProc( ref m);                       break ;               }           }

 

　　

 

好文要顶 关注我 收藏该文

拼博之路
关注 - 0
粉丝 - 6

+加关注

0

0

« 上一篇： NET异常 在 getsockopt 或 setsockopt 调用中指定的一个未知的、无效的或不受支持的选项或层次。
» 下一篇： Access使用参数化UPDATE数据时，数据无法更新的问题

posted on 2014-08-13 11:50 拼博之路 阅读( 7747) 评论( 0) 编辑 收藏