C#编程实现自定义热键的方法

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。