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The author:(作者)delvpublished in(发表于) 2014/1/6 9:08:29 Winform中在Form上截取消息的两种方法_[Asp.Net教程]
protected override void DefWndProc(ref Message m) { if ( m.Msg == 0x0201 ) { MessageBox.Show(m.Msg.ToString()); } else { base.DefWndProc (ref m); } }
还可以通过另一种办法,使用IMessageFilter 接口:
public class MessageFilter : IMessageFilter { public bool PreFilterMessage(ref Message m) { if (m.Msg == 0x0201) { MessageBox.Show("WM_LBUTTONDOWN is: " + m.Msg); return true; } return false; }
}
然后使用Application.AddMessageFilter方法,例如:
private static MessageFilter msgFliter = new MessageFilter();
在Main方法中注册消息筛选器:
Application.AddMessageFilter(msgFliter);
如果要取消注册,可以调用Application.RemoveMessageFilter方法
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