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：
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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。