Program line counter

#include <tchar.h>#include <windows.h>#include <strsafe.h>#include <conio.h>const int ReadFileScanningCR(const TCHAR * const fileName){	int lineCount = 0;	HANDLE fileHandle = CreateFile(		fileName,		FILE_ALL_ACCESS,		0,		0,		OPEN_EXISTING,		0,		0);	if(fileHandle == INVALID_HANDLE_VALUE) return 0;	const int MY_READ_BUFFER_SIZE = 32;	char fileBuffer[MY_READ_BUFFER_SIZE];	DWORD actualReadBytes = 0;	while(ReadFile(fileHandle, fileBuffer, MY_READ_BUFFER_SIZE, &actualReadBytes, 0))	{		for(DWORD nextChar = 0; nextChar < actualReadBytes; nextChar++)		{			if(fileBuffer[nextChar] == 13) lineCount++;		};		if(actualReadBytes < MY_READ_BUFFER_SIZE) break;	};	CloseHandle(fileHandle);	return lineCount;};const int ScanFiles(const TCHAR * const filePath, const TCHAR * const fileExtensionToSearch){	int lineCount = 0;	TCHAR completeFilePath[MAX_PATH];	StringCbCopy(completeFilePath, MAX_PATH * sizeof(TCHAR), filePath);	StringCbCat(completeFilePath, MAX_PATH * sizeof(TCHAR), _T("\\*.*"));	WIN32_FIND_DATA FindFileData;	HANDLE findHandle = FindFirstFile(		completeFilePath,		&FindFileData);	while(findHandle != INVALID_HANDLE_VALUE)	{		StringCbCopy(completeFilePath, MAX_PATH * sizeof(TCHAR), filePath);		StringCbCat(completeFilePath, MAX_PATH * sizeof(TCHAR), _T("\\"));		StringCbCat(completeFilePath, MAX_PATH * sizeof(TCHAR), FindFileData.cFileName);		if(FindFileData.dwFileAttributes == FILE_ATTRIBUTE_DIRECTORY)		{			if(FindFileData.cFileName[0] != _T('.')) // do not process "." and ".."			{				lineCount += ScanFiles(completeFilePath, fileExtensionToSearch);			};		}		else		{			// confirm extension matches			bool fileMatchesExtension = true;			size_t extLen = _tcslen(fileExtensionToSearch);			size_t fileNameLen = _tcslen(FindFileData.cFileName);			while(extLen > 0 && fileNameLen > 1)			{				extLen--;				fileNameLen--;				if(FindFileData.cFileName[fileNameLen] != fileExtensionToSearch[extLen])				{					fileMatchesExtension = false;					break;				};			};			if(fileMatchesExtension)			{				// basically extension must be is ".something", otherwise situations where				// extensionless files such as "myfilecpp" will be scanned.				if(FindFileData.cFileName[fileNameLen-1] == '.') 				{					_tcprintf(_T("Scanning File: %s\n"), completeFilePath);					lineCount += ReadFileScanningCR(completeFilePath);				};			};		};		if(FindNextFile(findHandle, &FindFileData) == 0) break;	};	FindClose(findHandle);	return lineCount;};int _tmain(int paramCount, TCHAR ** paramStrings){	if(paramCount != 2)	{		_tcprintf(_T("Please specify one parameter only, the source path\n"));		return 0;	};	int lineCount_h = ScanFiles(paramStrings[1], _T("h"));	int lineCount_cpp = ScanFiles(paramStrings[1], _T("cpp"));	_tcprintf(_T("\nTotal \"*.h\" lines: %d\n"), lineCount_h);	_tcprintf(_T("\nTotal \"*.cpp\" lines: %d\n"), lineCount_cpp);	_tcprintf(_T("\nTotal overall lines: %d\n"), lineCount_h + lineCount_cpp);	_tcprintf(_T("\npress any key to continue...\n"));	getch();	return 0;};