如何用C#作全局（也就是系统）键盘钩子？谢谢 ( (

[CNet]

关键是全局的，
还有做全局热键，比如Ctrl+Alt+某个键值。

[yarshray]

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_KEYBOARD = 2
}

public delegate int HOOKPROC(int nCode, int wParam, int lParam);

public void SetHook()
{
// set the keyboard hook
SetWindowsHookEx(HookType.WH_KEYBOARD,
new HOOKPROC(this.MyKeyboardProc),
0,
GetCurrentThreadId());
}

public int MyKeyboardProc(int nCode, int wParam, int lParam)
{
//在这里放置你的处理代码 return 0;
}
}
使用方法
可以在Form的构造函数里放入
Win32Hook hook = new Win32Hook();
hook.SetHook();

[CNet]

yarshray(saga jion) :
错了，您写的不是全局键盘钩子而是localhook！

[yarshray]

你说的是捕获系统热键吗?

[yarshray]

http://www.vbcity.com/forums/topic.asp?tid=5733
vb.net的
SetWindowsHookEx、UnhookWindowsHookEx

[zag]

学习学习

[yarshray]

http://expert.csdn.net/Expert/topic/1135/1135992.xml?temp=.1188776

[hillwell]

在这里声明一下，希望楼主不要介意 yarshray(saga jion)兄在很多帖子中
发言---很有热心---我所说赞扬的高手只举了班兄为例子，其实我对包括尼在内的诸位高手都是满怀敬意的。

[ouyang76cn]

to:hillwell(天子门生)

贴主问的是怎样做钩子!!!!!

[CNet]

不明白hillwell(天子门生)说的是什么意思？

[ys19811110]

转的：

Global Hook Is Not Supported in .NET Framework

You cannot implement global hooks in Microsoft .NET Framework. To install a global hook, a hook must have a native dynamic-link library (DLL) export to inject itself in another process that requires a valid, consistent function to call into. This requires a DLL export, which .NET Framework does not support. Managed code has no concept of a consistent value for a function pointer because these function pointers are proxies that are built dynamically.

[yarshray]

Win2K、NT下屏蔽Ctrl+Alt+Del的响应

这是一个系统级的调用,从普通的用户态根本没办法
所以必须使用登陆

http://www.csdn.net/magazine/download.shtm

详细解说!