hook

#include "keyhook.h"

HWND glhPrevTarWnd=NULL; // 窗口句柄
HWND glhHook=NULL; // 鼠标钩子句柄
HINSTANCE glhInstance=NULL; // DLL实例句柄

//****************************安装hook****************************//
DTLINK void StartHook(HWND hWnd)
{
 glhHook=(HWND)SetWindowsHookEx(WH_MOUSE,MouseProc,glhInstance,0);
}

 

DTLINK LRESULT WINAPI MouseProc(int nCode,WPARAM wParam,LPARAM lParam)
{
 LPMOUSEHOOKSTRUCT pMouseHook=(MOUSEHOOKSTRUCT FAR *) lParam;
 if(nCode>=0)
 {
  HWND glhTargetWnd=pMouseHook->hwnd;
  //取目标窗口句柄
  HWND ParentWnd=glhTargetWnd;
  while(ParentWnd !=NULL)
  {
   glhTargetWnd=ParentWnd;
   //取应用程序主窗口句柄
   ParentWnd=GetParent(glhTargetWnd);
  }
  if(glhTargetWnd!=glhPrevTarWnd)
  {
   char szCaption[100];
   //取目标窗口标题
   GetWindowText(glhTargetWnd,szCaption,100);
   
   WritePrivateProfileString("标题","AA",szCaption,".//标题.ini");
  }
 }
 //继续传递消息
 return CallNextHookEx((HHOOK)glhHook,nCode,wParam,lParam);
}

//　　最后，调用UnhookWindowsHookEx()函数完成对钩子的卸载：

DTLINK void StopHook()
{
 
 UnhookWindowsHookEx((HHOOK)glhHook);
}