本文实例讲述了C#编程实现自定义热键的方法。分享给大家供大家参考。具体实现方法如下：
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Drawing.Imaging; using System.IO; using System.Runtime.InteropServices; using System.Net; using System.Drawing.Drawing2D; namespace App { public partial class Form2 : Form { public Form2() { InitializeComponent(); //程序加载加载热键 this.Load += delegate { // 热键一:Control +光标左箭头 CustomSystemKeyBoard.RegisterHotKey(Handle, 100, 8, Keys.Left); // 热键一:Control +光标右箭头 CustomSystemKeyBoard.RegisterHotKey(Handle, 200, 2, Keys.Right); // 热键一:Control +光标上箭头 CustomSystemKeyBoard.RegisterHotKey(Handle, 300, 2, Keys.Up); // 热键一:Control +光标下箭头 CustomSystemKeyBoard.RegisterHotKey(Handle, 400, 2, Keys.Down); }; //在程序退出时取消热键的注册 this.FormClosing += delegate { CustomSystemKeyBoard.UnregisterHotKey(Handle, 100); CustomSystemKeyBoard.UnregisterHotKey(Handle, 200); CustomSystemKeyBoard.UnregisterHotKey(Handle, 300); CustomSystemKeyBoard.UnregisterHotKey(Handle, 400); }; } protected override void WndProc(ref Message m) { //如果m.Msg的值为0x0312那么表示用户按下了热键 const int WM_HOTKEY = 0x0312; switch (m.Msg) { case WM_HOTKEY: ProcessKey(m); break; } base.WndProc(ref m); } /// <summary> /// 按下热键的操作 /// </summary> /// <param name="m"></param> protected void ProcessKey(Message m) { //IntPtr用于表示指针或句柄的平台特定类型 string id = m.WParam.ToString(); MessageBox.Show(id); switch (id) { case "100": // break; case "200": break; case "300": break; case "400": break; } } } public class CustomSystemKeyBoard { /// <summary> /// 声明API函数 /// </summary> /// <param name="hWnd">Handle</param> /// <param name="id">热键id</param> /// <param name="fsModifiers">热键类型(KeyModifiers)</param> /// <param name="vk">键盘按键</param> /// <returns></returns> [System.Runtime.InteropServices.DllImport("user32.dll")] public static extern bool RegisterHotKey( IntPtr hWnd, int id, uint fsModifiers, Keys vk ); /// <summary> /// 声明API函数 /// </summary> /// <param name="hWnd"></param> /// <param name="id"></param> /// <returns></returns> [System.Runtime.InteropServices.DllImport("user32.dll")] public static extern bool UnregisterHotKey(IntPtr hWnd, int id); /// <summary> /// 定义一个KeyModifiers的枚举,以便出现组合键 /// </summary> public enum KeyModifiers { None = 0, Alt = 1, Control = 2, Shift = 3, Windows = 8 } } }
希望本文所述对大家的C#程序设计有所帮助。
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