#include "stdafx.h" #include <afxdllx.h> #include "mousehook.h" #pragma data_seg("mydata") HWND glhPrevTarWnd=NULL; HWND glhDisplayWnd=NULL; //上次鼠标所指的窗口句柄 HHOOK glhHook=NULL; //显示目标窗口标题编辑框的句柄 HINSTANCE glhInstance=NULL; //安装的鼠标勾子句柄 #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(); } BOOL Cmousehook::starthook(HWND hWnd) //安装钩子并设定接收显示窗口句柄 { BOOL bResult=FALSE; glhHook=SetWindowsHookEx(WH_MOUSE,MouseProc,glhInstance,0); if(glhHook!=NULL) bResult=TRUE; glhDisplayWnd=hWnd; //设置显示目标窗口标题编辑框的句柄 return bResult; } BOOL Cmousehook::stophook() //卸载钩子 { BOOL bResult=FALSE; if(glhHook) { bResult= UnhookWindowsHookEx(glhHook); if(bResult) { glhPrevTarWnd=NULL; glhDisplayWnd=NULL;//清变量 glhHook=NULL; } } return bResult; } 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; ParentWnd=GetParent(glhTargetWnd); //取应用程序主窗口句柄 } if(glhTargetWnd!=glhPrevTarWnd) { char szCaption[100]; GetWindowText(glhTargetWnd,szCaption,100); //取目标窗口标题 if(IsWindow(glhDisplayWnd)) SendMessage(glhDisplayWnd,WM_SETTEXT,0,(LPARAM)(LPCTSTR)szCaption); glhPrevTarWnd=glhTargetWnd; //保存目标窗口 } } return CallNextHookEx(glhHook,nCode,wparam,lparam); //继续传递消息 } 怎么还是出现这个问题呢？
#include <afxdllx.h>
#include "mousehook.h"
#pragma data_seg("mydata")
HWND glhPrevTarWnd=NULL;
HWND glhDisplayWnd=NULL; //上次鼠标所指的窗口句柄
HHOOK glhHook=NULL; //显示目标窗口标题编辑框的句柄
HINSTANCE glhInstance=NULL; //安装的鼠标勾子句柄
#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();
}
BOOL Cmousehook::starthook(HWND hWnd) //安装钩子并设定接收显示窗口句柄
{ BOOL bResult=FALSE;
glhHook=SetWindowsHookEx(WH_MOUSE,MouseProc,glhInstance,0);
if(glhHook!=NULL)
bResult=TRUE;
glhDisplayWnd=hWnd; //设置显示目标窗口标题编辑框的句柄
return bResult;
}
BOOL Cmousehook::stophook() //卸载钩子
{
BOOL bResult=FALSE;
if(glhHook)
{
bResult= UnhookWindowsHookEx(glhHook);
if(bResult)
{
glhPrevTarWnd=NULL;
glhDisplayWnd=NULL;//清变量
glhHook=NULL;
}
}
return bResult;
}
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;
ParentWnd=GetParent(glhTargetWnd);
//取应用程序主窗口句柄
}
if(glhTargetWnd!=glhPrevTarWnd)
{
char szCaption[100];
GetWindowText(glhTargetWnd,szCaption,100);
//取目标窗口标题
if(IsWindow(glhDisplayWnd))
SendMessage(glhDisplayWnd,WM_SETTEXT,0,(LPARAM)(LPCTSTR)szCaption);
glhPrevTarWnd=glhTargetWnd;
//保存目标窗口
}
}
return CallNextHookEx(glhHook,nCode,wparam,lparam);
//继续传递消息
}
怎么还是出现这个问题呢？