可被CONSOLE调用的ＤＬＬ(钩子)模型

最新推荐文章于 2025-04-22 15:38:43 发布

原创最新推荐文章于 2025-04-22 15:38:43 发布 · 825 阅读

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文章标签：

#dll #callback #thread #keyboard #null

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本文介绍了一个钩子DLL的实现方式，包括DLLMain函数中的不同操作情况处理，键盘钩子过程函数KeyboarProc的具体实现，以及如何安装和卸载钩子。强调了全局变量g_hInst在控制台程序中正确使用的重要性。

下面是钩子DLL的内容:

#include "stdafx.h"

#include "Hdll.h"
#include <stdio.h>

#pragma data_seg ("shared")
static HHOOK g_hHook=NULL;
#pragma data_seg ()

HINSTANCE g_hInst;
DWORD ProcessID = 0;
LRESULT CALLBACK KeyboarProc(int code, WPARAM wParam, LPARAM lParam);

BOOL APIENTRY DllMain( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
switch(ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
g_hInst = HINSTANCE(hModule); ＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊
break;
case DLL_PROCESS_DETACH:
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
}
return 1;
}

LRESULT CALLBACK KeyboarProc(int code, WPARAM wParam, LPARAM lParam)
{

MessageBox(NULL,"key pressed","",MB_OK);

return CallNextHookEx(g_hHook,code,wParam,lParam);
}
int InstallHOOK()
{
g_hHook=SetWindowsHookEx(WH_KEYBOARD,KeyboarProc,g_hInst,0);
if (g_hHook)
return TRUE;
else
return FALSE;
}

int UninstallHOOK()
{
if (UnhookWindowsHookEx(g_hHook)==0)
return FALSE;
else
return TRUE;
}