另类键盘钩子 DLL自己安装钩子

#pragma data_seg ()
            static HHOOK g_hKeyboardHook = NULL;
            static HINSTANCE g_hInst        = NULL;
#pragma data_seg ()
#pragma comment (linker, "/section:Shared, rws")

BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, PVOID pvReserved) {
     switch(fdwReason){
       case DLL_PROCESS_ATTACH:
       g_hInst =      (HINSTANCE) hInstance; 
。。。。。

然后再用２个输出函数:一个安装钩子,一个卸载钩子

MY_API BOOL HookKey ()
{
       ....
       g_hKeyboardHook     = ::SetWindowsHookEx(WH_KEYBOARD, KeyboardProc,     g_hInst,     NULL);
       ....
}

CreateRemoteThread 去调用安装钩子的导出函数

 

LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
BOOL bKeyUp = lParam & (1 << 31);//防止，键盘按和弹起都执行一次
if (bKeyUp && wParam == VK_HOME && nCode == HC_ACTION) {
  
//////////////////////加入窗体////////////////////////////////////////////////////
  
   //AfxMessageBox("ok");

   if (myform == NULL) 
   {
    AFX_MANAGE_STATE(AfxGetStaticModuleState());
    CWnd *pCWnd = CWnd::GetForegroundWindow();
    myform = new CMyForm();
    myform->Create(IDD_MYFORM,pCWnd);
    myform->ShowWindow(SW_SHOW);
   }
   else
   {
    myform->ShowWindow(myform->IsWindowVisible() ? SW_HIDE : SW_SHOW);
   }


   //////////////////////////////////////////////////////////////////////////
}
return ::CallNextHookEx(g_hhook, nCode, wParam ,lParam);
}

extern "C" __declspec(dllexport) BOOL WINAPI InstallHook(HWND h)
{
if (g_hhook == NULL) {
   DWORD pmod;
   DWORD hThread = GetWindowThreadProcessId(h,&pmod);
   g_hhook = ::SetWindowsHookEx(WH_KEYBOARD, (HOOKPROC)KeyboardProc,theApp.m_hInstance,hThread);
   if (g_hhook != NULL)
    return TRUE;
}
return FALSE;
}

extern "C" __declspec(dllexport) BOOL WINAPI InstallHook(HWND h)
{
if (g_hhook == NULL) {
   DWORD pmod;
   DWORD hThread = GetWindowThreadProcessId(h,&pmod);
   g_hhook = ::SetWindowsHookEx(WH_KEYBOARD, (HOOKPROC)KeyboardProc,theApp.m_hInstance,hThread);
   if (g_hhook != NULL)
    return TRUE;
}
return FALSE;
}

 

 

 

 

 

 

转载于:https://www.cnblogs.com/rogee/archive/2011/02/01/1948720.html