正在阅读：VC实现的MSN Messager钩子程序VC实现的MSN Messager钩子程序

//包含DLL函数导出的头文件
#include "MSNHook.h"

//隐式导入

#pragma comment(lib,"MSNHook.lib")

//声明导入函数

__declspec(dllimport) BOOL WINAPI SetMsnHook(DWORD dwThreadId);
__declspec(dllimport) void WINAPI GetText(int &x,int &y,char ** ptext);
__declspec(dllimport) HWND WINAPI GetMyHwnd();//安装MSN钩子函数


void CTestMSNHookDlg::OnBnClickedOk()
{

//通过SPY++可以看到MSN聊天对话框窗口类是IMWindowClass，通过这个得到该窗口句柄
CWnd *pMsnWin = FindWindow(TEXT("IMWindowClass"),NULL);
if(pMsnWin == NULL) return ;

//通过窗口句柄得到对应的线程的ID
SetMsnHook(GetWindowThreadProcessId(pMsnWin->GetSafeHwnd(),NULL));
MSG msg;
GetMessage(&msg,NULL,0,0);
SetTimer(101,100,NULL);

}

void CTestMSNHookDlg::OnTimer(UINT_PTR nIDEvent)
{

//刷新消息
char * pText = NULL;
int x = 0,y = 0;
GetText(x,y,&pText);
if(x ==0 && y ==0) return ;
m_Edit.Format("%d:%d:%s",x,y,pText);
//m_Edit = pText;
UpdateData(FALSE);

HWND hWnd = GetMyHwnd();
CWnd * pWnd = CWnd::FromHandle(hWnd);
pWnd->GetWindowText(m_Edit);
CDialog::OnTimer(nIDEvent);
}

void CTestMSNHookDlg::OnBnClickedButton1()
{

//关闭
KillTimer(101);
SetMsnHook(0);
OnCancel();
}