求大神帮忙看下这样写的钩子是不是有问题

LRESULT CALLBACK ShellHookProc(int nCode,WPARAM wParam,LPARAM lParam)

{

	if (nCode>=0)// Windows Created

	{

		HWND hLastWins =FindWindow("#32770","询问");

		HWND hLastWinss = FindWindowEx(hLastWins, 0,

			"Static", NULL);

		char title[200];

		GetWindowText(hLastWinss, title, 200);

		char *t=title;

		char *pattern="小于成本";

		char *patter="小于最低销售价";

		char *isMatch1= strstr(t,pattern);

		char *isMatch2= strstr(t,patter); 

		if(hLastWinss!=NULL)

		{

			if (isMatch1!=NULL||isMatch2!=NULL)

			{

				HWND hLastWin = FindWindowEx(hLastWins, 0,

					"Button", "是(&Y)");	

				EnableWindow(hLastWin, false);

			}			

		}



		/*EnumWindows(EnumWindowsProc,0); */ 

	}



	return CallNextHookEx(g_hHookShell,nCode,wParam,lParam);

}



BOOL CQJHook1::SetHook()

{



	g_hHookShell = SetWindowsHookEx(WH_CALLWNDPROC, ShellHookProc,glhInstance,0);



	return g_hHookShell ? TRUE : FALSE;



}



BOOL CQJHook1::DestroyHook()

{

	if (g_hHookShell == NULL)

	{

		return FALSE;

	}



	UnhookWindowsHookEx(g_hHookShell);

	return TRUE;

}

CQJHook1::CQJHook1() //类构造函数 

{ 

} 



CQJHook1::~CQJHook1()

{

	DestroyHook();

}