www.pudn.com > Kingsoft-Hook.rar > Mousehook.cpp

// Mousehook.cpp : Defines the initialization routines for the DLL. 
// 
 
#include "stdafx.h" 
#include  
#include "Mousehook.h" 
#include "windows.h" 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
/*********************************/ 
#pragma data_seg("mydata") 
HWND glhPrevTarWnd=NULL; 
HWND glhDisplayWnd=NULL; 
HHOOK glhHook=NULL; 
HINSTANCE glhInstance=NULL; 
#pragma  data_seg() 
/************************************/ 
 
static AFX_EXTENSION_MODULE MousehookDLL = { NULL, NULL }; 
 
extern "C" int APIENTRY 
DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved) 
{ 
	// Remove this if you use lpReserved 
	UNREFERENCED_PARAMETER(lpReserved); 
 
	if (dwReason == DLL_PROCESS_ATTACH) 
	{ 
		TRACE0("MOUSEHOOK.DLL Initializing!\n"); 
		 
		// Extension DLL one-time initialization 
		if (!AfxInitExtensionModule(MousehookDLL, hInstance)) 
			return 0; 
 
		// Insert this DLL into the resource chain 
		// NOTE: If this Extension DLL is being implicitly linked to by 
		//  an MFC Regular DLL (such as an ActiveX Control) 
		//  instead of an MFC application, then you will want to 
		//  remove this line from DllMain and put it in a separate 
		//  function exported from this Extension DLL.  The Regular DLL 
		//  that uses this Extension DLL should then explicitly call that 
		//  function to initialize this Extension DLL.  Otherwise, 
		//  the CDynLinkLibrary object will not be attached to the 
		//  Regular DLL's resource chain, and serious problems will 
		//  result. 
 
		new CDynLinkLibrary(MousehookDLL); 
		glhInstance=hInstance; 
	} 
	else if (dwReason == DLL_PROCESS_DETACH) 
	{ 
		TRACE0("MOUSEHOOK.DLL Terminating!\n"); 
		// Terminate the library before destructors are called 
		AfxTermExtensionModule(MousehookDLL); 
	} 
	return 1;   // ok 
} 
 
Cmousehook::Cmousehook() 
{ 
} 
 
Cmousehook::~Cmousehook() 
{ 
	stophook(); 
} 
 
LRESULT WINAPI MouseProc(int nCode,WPARAM wparam,LPARAM lparam) 
{ 
	LPMOUSEHOOKSTRUCT pMouseHook=(MOUSEHOOKSTRUCT FAR*)lparam; 
	if(nCode>=0) 
	{ 
		HWND glhTargetWnd=pMouseHook->hwnd; 
		HWND ParentWnd=glhTargetWnd; 
		while (ParentWnd!=NULL) 
		{ 
			glhTargetWnd=ParentWnd; 
			ParentWnd=GetParent(glhTargetWnd); 
		} 
		if(glhTargetWnd!=glhPrevTarWnd) 
		{ 
			char szCaption[100]; 
			GetWindowText(glhTargetWnd,szCaption,100); 
			if(IsWindow(glhDisplayWnd)) 
				SendMessage(glhDisplayWnd,WM_SETTEXT,0,(LPARAM)(LPCTSTR)szCaption); 
			glhPrevTarWnd=glhTargetWnd; 
			 
		} 
	} 
	return CallNextHookEx(glhHook,nCode,wparam,lparam); 
 
} 
 
 
BOOL Cmousehook::starthook(HWND hWnd) 
{ 
	BOOL bResult=FALSE; 
	glhHook=SetWindowsHookEx(WH_MOUSE,MouseProc,glhInstance,0); 
	if (glhHook!=NULL) 
	{ 
		bResult=TRUE; 
	} 
	glhDisplayWnd=hWnd; 
	 
	return bResult; 
} 
 
BOOL Cmousehook::stophook() 
{ 
	BOOL bResult=FALSE; 
	if (glhHook) 
	{ 
		bResult=UnhookWindowsHookEx(glhHook); 
		if(bResult) 
		{ 
			glhPrevTarWnd=NULL; 
			glhDisplayWnd=NULL; 
			glhHook=NULL; 
		} 
	} 
	return bResult; 
}