用這個類的方法start可以開始捕獲鍵盤和滑鼠的在全域性事件和相應的引數資訊，也就所謂的鉤子程式：
得到滑鼠的訊息的類：
using system;
using system.runtime.interopservices;
using system.reflection;
using system.threading;
using system.windows.forms;
namespace hookglobal
//宣告滑鼠鉤子的封送結構型別
[structlayout(layoutkind.sequential)]
public class mousehookstruct
//裝置鉤子的函式
[dllimport("user32.dll",charset=charset.auto, callingconvention=callingconvention.stdcall)]
public static extern int setwindowshookex(int idhook, hookproc lpfn, intptr hinstance, int threadid);
//卸下鉤子的函式
[dllimport("user32.dll",charset=charset.auto, callingconvention=callingconvention.stdcall)]
public static extern bool unhookwindowshookex(int idhook);
//下乙個鉤掛的函式
[dllimport("user32.dll",charset=charset.auto, callingconvention=callingconvention.stdcall)]
public static extern int callnexthookex(int idhook, int ncode, int32 wparam, intptr lparam);
public delegate int hookproc(int ncode, int32 wparam, intptr lparam);
///
/// 墨認的建構函式構造當前類的例項.
///
public mousehook()
//析構函式.
~mousehook()
public void start()}}
public void stop()
//如果卸下鉤子失敗
if (!(retmouse)) throw new exception("unhookwindowshookex failed.");
}private int mousehookproc(int ncode, int32 wparam, intptr lparam)
//從**函式中得到滑鼠的資訊
mousehookstruct mymousehookstruct = (mousehookstruct) marshal.ptrtostructure(lparam, typeof(mousehookstruct));
mouseeventargs e=new mouseeventargs(button, clickcount, mymousehookstruct.pt.x, mymousehookstruct.pt.y, 0 );
onmouseactivity(this, e);
}return callnexthookex(hmousehook, ncode, wparam, lparam); }}
}得到鍵盤訊息的類：
using system;
using system.runtime.interopservices;
using system.reflection;
using system.threading;
using system.windows.forms;
namespace hookglobal
//裝置鉤子的函式
[dllimport("user32.dll",charset=charset.auto, callingconvention=callingconvention.stdcall)]
public static extern int setwindowshookex(int idhook, hookproc lpfn, intptr hinstance, int threadid);
//卸下鉤子的函式
[dllimport("user32.dll",charset=charset.auto, callingconvention=callingconvention.stdcall)]
public static extern bool unhookwindowshookex(int idhook);
//下乙個鉤掛的函式
[dllimport("user32.dll",charset=charset.auto, callingconvention=callingconvention.stdcall)]
public static extern int callnexthookex(int idhook, int ncode, int32 wparam, intptr lparam);
[dllimport("user32")]
public static extern int toascii(int uvirtkey, int uscancode, byte lpbkeystate,byte lpwtranskey, int fustate);
[dllimport("user32")]
public static extern int getkeyboardstate(byte pbkeystate);
public delegate int hookproc(int ncode, int32 wparam, intptr lparam);
///
/// 墨認的建構函式構造當前類的例項並自動的執行起來.
///
public keybordhook()
//析構函式.
~keybordhook()
public void start()}}
public void stop()
//如果卸下鉤子失敗
if (!(retkeyboard)) throw new exception("unhookwindowshookex failed.");
}private int keyboardhookproc(int ncode, int32 wparam, intptr lparam)
//引發onkeypressevent
if ( onkeypressevent!=null && wparam ==wm_keydown )
}//引發onkeyupevent
if ( onkeyupevent!=null && ( wparam ==wm_keyup || wparam==wm_syskeyup ))
}return callnexthookex(hkeyboardhook, ncode, wparam, lparam); }}
}作者blog：http://blog.csdn.***/hbxtlhx/
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