C#でフックを設定してマウスの移動を監視

4562 ワード

C#の大まかなコードは以下の通りです.
using System; 
using System.Windows.Forms; 
using System.Runtime.InteropServices; 
namespace WindowsApplication1
...{
public partial class Form1 : Form
...{
public Form1()
...{
InitializeComponent(); 
}
private void Form1_Load(object sender, EventArgs e)
...{
Win32Hook hook = new Win32Hook(); 
hook.onMouseChange += new EventHandler(hook_onMouseChange); 
hook.SetHook(); 
}
void hook_onMouseChange(object sender, EventArgs e)
...{
this.Text = Cursor.Position.ToString(); 
}
}
public class Win32Hook
...{
[DllImport("kernel32")]
public static extern int GetCurrentThreadId(); 
[DllImport("user32",CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern int SetWindowsHookEx(
HookType idHook,
HOOKPROC lpfn,
int hmod,
int dwThreadId); 
public enum HookType
...{
WH_GETMESSAGE = 3
}
public delegate int HOOKPROC(int nCode, int wParam, int lParam); 
public event System.EventHandler onMouseChange; 
public void SetHook()
...{
SetWindowsHookEx(HookType.WH_GETMESSAGE,
new HOOKPROC(this.MyKeyboardProc),
0,
GetCurrentThreadId()); 
}
public int MyKeyboardProc(int nCode, int wParam, int lParam)
...{
if (onMouseChange != null)
...{
onMouseChange(null, null); 
}
return 0; 
}
}
}