高手进来帮忙,急救,C#2.0中是不是不能使用键盘钩子了
如题,发些代码,麻烦大家帮我看看是不是哪里有错:
class keyhook
{
public keyhook()
{
this.statrhook();
}
public event KeyEventHandler KeyUp;
public win32API.API.HookProc keyHook;
public int hkeyhook = 0;
private const int WH_KEYBOARD_LL = 13;
private int WH_KEYBOARD = 2;
public void statrhook()
{
if (this.hkeyhook == 0)
{
this.keyHook = new win32API.API.HookProc(this.KeyboardHookProc);
this.hkeyhook = win32API.API.SetWindowsHookEx(WH_KEYBOARD_LL,
this.keyHook,
Marshal.GetHINSTANCE(
Assembly.GetExecutingAssembly().GetModules()[0]),
0);
MessageBox.Show(this.hkeyhook.ToString(), "钩子 ");
}
//if (this.hkeyhook == 0)
//{
// this.sotphook();
//}
//int errorCode = Marshal.GetLastWin32Error();
//MessageBox.Show(errorCode.ToString(), "钩子 ");
}
public void sotphook()
{
bool retKeyboard;
if (this.hkeyhook != 0)
{
retKeyboard =win32API.API.UnhookWindowsHookEx(this.hkeyhook);
this.hkeyhook = 0;
}
}
private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
if (nCode > = 0 && this.KeyUp != null)
{
MessageBox.Show( "ok ", " ");
win32API.API.KeyboardHookStruct key=(win32API.API.KeyboardHookStruct)Marshal.PtrToStructure(lParam,typeof(win32API.API.KeyboardHookStruct));
if (KeyUp != null && (wParam ==win32API.API.WM_KEYUP || wParam ==win32API.API.WM_SYSKEYUP))
{
Keys keydata = (Keys)key.vkCode;
KeyEventArgs e = new KeyEventArgs(keydata);
this.KeyUp(this, e);
}
}
return win32API.API.CallNextHookEx(this.hkeyhook,nCode, wParam, lParam);
}
}
[解决办法]
完全可以写钩子，调用window API 函数
如果要用全局钩子，编译时要选非托管的。
[解决办法]
我也曾写过键盘鼠标钩子程序，参考
http://blog.csdn.net/wzuomin/archive/2007/06/18/1656315.aspx
