【原创】WIFI手机实现的PPT翻页器（2）——手机端(C#实现)
接上文，WIFI手机实现PPT翻页器，手机端程序的开发及流程如下：
1、使用VS2008创建智能设备项目，.NET FrameWork选择3.5版本；
2、编程语言使用C#；
3、手机上的客户端程序在检查IP地址和端口合法性后，启用翻页按钮和相关菜单；
4、程序根据用户通过菜单选择的命令向手机上的服务端程序发送指令；
5、手机上必须安装.NET Compact FrameWork 3.5才能运行改程序。
6、对于HTC Touch2 T3333型号的手机，支持通过音量控制键翻页。
关键技术：
1.C# Windows Mobile编程
2.C# Socket编程
3.C# 调用Win32API对键盘进行Hook
4.C# 正则表达式使用
相关文件WirelessPresenter.cs代码如下：
?Download download.txt
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using System.Linq; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Text.RegularExpressions; using System.Net; using System.Net.Sockets; using System.Runtime.InteropServices; namespace Wireless_Presenter { public partial class WirelessPresenter_WM : Form { private bool pptInited = false; // 准备好了,可以翻页 private bool inputValidate = false; // 文本框内字符校验通过 public WirelessPresenter_WM() { InitializeComponent(); } // 退出 private void mnuExit_Click(object sender, EventArgs e) { if (0 != this.hHookKey) { this.HookStop(); // 停止Hook } this.Close(); } // 参数环境准备 private void mnuStart_Click(object sender, EventArgs e) { inputValidate = checkInput(); // 检查IP地址和端口的合法性 if (inputValidate) { pptInited = sendCommand("TEST"); // 测试连接可用性 if (pptInited) { PrepareParameters(); // 准备参数 this.HookStart(); // 启动Hook } } else { MessageBox.Show("请检查参数格式:)"); } } // IP地址和端口的合法性检查 private bool checkInput() { Regex regexIPAddress = new Regex(@"^\d+\.\d+\.\d+\.\d+$"); Regex regexPort = new Regex(@"^\d+$"); if (regexIPAddress.IsMatch(txtServerIP.Text) && regexPort.IsMatch(txtServerPort.Text)) { return true; } else { return false; } } private void mnuReset_Click(object sender, EventArgs e) { resetParameters(); // 重置程序参数 } // 准备参数，可以操作PPT了 private void PrepareParameters() { txtServerIP.Enabled = false; txtServerPort.Enabled = false; btnPageDown.Enabled = true; btnPageUp.Enabled = true; mnuHome.Enabled = true; mnuEnd.Enabled = true; mnuBlack.Enabled = true; mnuWhite.Enabled = true; mnuQuit.Enabled = true; //pptInited = false; } // 重置程序参数 private void resetParameters() { txtServerIP.Enabled = true; txtServerPort.Enabled = true; btnPageDown.Enabled = false; btnPageUp.Enabled = false; mnuHome.Enabled = false; mnuEnd.Enabled = false; mnuBlack.Enabled = false; mnuWhite.Enabled = false; mnuQuit.Enabled = false; pptInited = false; if (0 != this.hHookKey) { this.HookStop(); // 停止Hook } } // PPT前一页 private void btnPageUp_Click(object sender, EventArgs e) { sendCommand("UP"); //sendCommand("GET /\r\n\r\n"); } // PPT后一页 private void btnPageDown_Click(object sender, EventArgs e) { sendCommand("DOWN"); } // 切换到幻灯片首页 private void mnuHome_Click(object sender, EventArgs e) { sendCommand("HOME"); } // 切换到幻灯片尾页 private void mnuEnd_Click(object sender, EventArgs e) { sendCommand("END"); } // 黑屏切换 private void mnuBlack_Click(object sender, EventArgs e) { sendCommand("BLACK"); } // 白屏切换 private void mnuWhite_Click(object sender, EventArgs e) { sendCommand("WHITE"); } // 退出放映 private void mnuQuit_Click(object sender, EventArgs e) { sendCommand("QUIT"); } // 显示帮助 private void mnuHelp_Click(object sender, EventArgs e) { ShowHelp(); } // 帮助信息 private void ShowHelp() { StringBuilder strHelp = new StringBuilder(); strHelp.Append("WIFI手机PPT翻译器\n"); strHelp.Append("For Windows Mobile 6.5\n"); strHelp.Append(".NET CF 3.5\n\n"); strHelp.Append("Version:1.0\n"); strHelp.Append("Author:i@isclab.org\n"); strHelp.Append("Site:http://i.isclab.org\n"); strHelp.Append("Date:2010-02-23"); MessageBox.Show(strHelp.ToString(), "Wireless Presenter"); } // 创建Socket发送翻页指令 private bool sendCommand(string txtCommand) { IPAddress address = IPAddress.Parse(txtServerIP.Text); int port = Convert.ToInt32(txtServerPort.Text); IPEndPoint myIPEndPoit = new IPEndPoint(address, port); Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); try { s.Connect(myIPEndPoit); if (s.Connected) { byte[] buffer = Encoding.ASCII.GetBytes(txtCommand); s.Send(buffer, buffer.Length, 0); //byte[] buffer_read = new byte[100] ; //s.Receive(buffer_read); //MessageBox.Show(Encoding.UTF8.GetString(buffer_read,0,buffer_read.Length).ToString()); s.Close(); return true; } else { MessageBox.Show("连接PC端失败！\n请确认网络连接参数！"); return false; } } catch { MessageBox.Show("Socket初始化失败！\n请确认网络连接参数"); return false; } } public delegate int HookKeyProc(int code, IntPtr wParam, IntPtr lParam); private HookKeyProc hookKeyDeleg; private int hHookKey = 1; private int key_VOLUMEDOWN = 0; // 音量增加键被按下的次数 private int key_T_VOLUMEUP = 0; // 音量降低键被按下的次数 #region public methods //安装钩子 public void HookStart() { if (hHookKey != 0) { // 如果已经安装则卸载 this.HookStop(); } hookKeyDeleg = new HookKeyProc(HookKeyProcedure); hHookKey = SetWindowsHookEx(WH_KEYBOARD_LL, hookKeyDeleg, GetModuleHandle(null), 0); if (hHookKey == 0) { throw new SystemException("Failed acquiring of the hook."); } } //拆除钩子 public void HookStop() { UnhookWindowsHookEx(hHookKey); } #endregion #region protected and private methods private int HookKeyProcedure(int code, IntPtr wParam, IntPtr lParam) { KBDLLHOOKSTRUCT hookStruct = (KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(KBDLLHOOKSTRUCT)); if (code < 0) return CallNextHookEx(hookKeyDeleg, code, wParam, lParam); if (hookStruct.vkCode == 0x5B) { //如果捕捉到VK_LWIN按键 //......处理...... return -1; //返回-1表示已经处理了，不再往下传递 } if (hookStruct.vkCode == 0x26) { //如果捕捉到VK_LEFT按键 //......处理...... return -1; } if (hookStruct.vkCode == 0x26) { //如果捕捉到VK_LEFT按键 //......处理...... return -1; } // 117和118 是HTC Touch2 T3333系统中获取到的按键数值，其他系统可能稍作调整 if (hookStruct.vkCode == 0x75) { // VOLUMEUP if (1 == (this.key_T_VOLUMEUP++ % 2) && pptInited) { this.sendCommand("UP"); } return -1; } if (hookStruct.vkCode == 0x76) { //V UP if (1 == (this.key_VOLUMEDOWN++ % 2) && pptInited) { this.sendCommand("DOWN"); } return -1; } //如果你想知道该键的值 //MessageBox.Show(hookStruct.vkCode.ToString()); return -1; //测试发现会死机 //int iCall = CallNextHookEx(hookKeyDeleg, code, wParam, lParam); // 没处理的键的消息往下传递 //return iCall; } #endregion #region P/Invoke declarations [DllImport("coredll.dll")] private static extern int SetWindowsHookEx(int type, HookKeyProc HookKeyProc, IntPtr hInstance, int m); //private static extern int SetWindowsHookEx(int type, HookMouseProc HookMouseProc, IntPtr hInstance, int m); [DllImport("coredll.dll")] private static extern IntPtr GetModuleHandle(string mod); [DllImport("coredll.dll")] private static extern int CallNextHookEx( HookKeyProc hhk, int nCode, IntPtr wParam, IntPtr lParam ); [DllImport("coredll.dll")] private static extern int GetCurrentThreadId(); [DllImport("coredll.dll", SetLastError = true)] private static extern int UnhookWindowsHookEx(int idHook); private struct KBDLLHOOKSTRUCT { public int vkCode; public int scanCode; public int flags; public int time; public IntPtr dwExtraInfo; } const int WH_KEYBOARD_LL = 20; public class KeyBoardInfo { public int vkCode; public int scanCode; public int flags; public int time; } #endregion } } |
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【原创】WIFI手机实现的PPT翻页器（1b）——PC端(Python实现)