filters.cs

opennetcf2.0实作,详细说明请参数文件内说明

//==========================================================================================
//
//		OpenNETCF.Samples.ApplicationExCSharp.Filters
//		Copyright (c) 2003, OpenNETCF.org
//
//		This library is free software; you can redistribute it and/or modify it under 
//		the terms of the OpenNETCF.org Shared Source License.
//
//		This library is distributed in the hope that it will be useful, but 
//		WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
//		FITNESS FOR A PARTICULAR PURPOSE. See the OpenNETCF.org Shared Source License 
//		for more details.
//
//		You should have received a copy of the OpenNETCF.org Shared Source License 
//		along with this library; if not, email [e-mail] to request a copy.
//
//		If you wish to contact the OpenNETCF Advisory Board to discuss licensing, please 
//		email [e-mail].
//
//		For general enquiries, email [e-mail] or visit our website at:
//		http://www.opennetcf.org
//
//==========================================================================================
using System;
using OpenNETCF.Windows.Forms;
using Microsoft.WindowsCE.Forms;

namespace OpenNETCF.Samples.ApplicationExCSharp
{
	class MouseFilter : IMessageFilter
	{
		#region IMessageFilter Members

		public bool PreFilterMessage(ref Message m)
		{
			switch((WinMsg)m.Msg)
			{
				case WinMsg.WM_LBUTTONDBLCLK:
					System.Windows.Forms.MessageBox.Show("Double Click!");
					break;
			}
			return false;
		}

		#endregion

	}

	class KeyFilter : IMessageFilter
	{
		#region IMessageFilter Members

		public bool PreFilterMessage(ref Message m)
		{
			int key = m.WParam.ToInt32();

			switch((WinMsg)m.Msg)
			{
				case WinMsg.WM_CHAR:
					switch(key)
					{
						case 48:
						case 49:
						case 50:
						case 51:
						case 52:
						case 53:
						case 54:
						case 55:
						case 56:
						case 57:

							// filter out any numbers pressed
							return true;
					}
					break;
			}
			return false;
		}

		#endregion
	}
}