Thread: Folder monitor - check Games product files for changes in the installed directory

Code:

#include "stdafx.h"
#include <windows.h>

int main()
{
	LPCTSTR szMonDirPath = TEXT("C:\\temp"); 

	HANDLE hDir = CreateFile( szMonDirPath,		// pointer to the file path 
		FILE_LIST_DIRECTORY,					// access (read/write) mode
		FILE_SHARE_READ|FILE_SHARE_WRITE,		// share mode
		NULL,									// security descriptor
		OPEN_EXISTING,							// how to create
		FILE_FLAG_BACKUP_SEMANTICS,				// FILE_FLAG_OVERLAPPED // file attributes
		NULL									// file with attributes to copy
		);

	FILE_NOTIFY_INFORMATION Buffer[1024] = {0}; //The larger the value, the larger lenght filename can be logged

	DWORD BytesReturned;

	printf("This is FolderMon application :- \nCurrently Monitoring %S => \n\n", szMonDirPath);

	char szFilename[MAX_PATH] = {0};			//var used to get the filename to print
	char szTempFilename[MAX_PATH] = {0};		//var used to get the filename to print

	int iCnt=1, iLen=0, iTempLen=0, iTrack=0, iFilenameEndLen=0;
	char *pdest = NULL;

	while (true) {

		int ret = ReadDirectoryChangesW(
			hDir,				// handle to directory
			&Buffer,			// read results buffer
			sizeof(Buffer),     // length of buffer
			TRUE,				// monitoring option
			// filter conditions
			FILE_NOTIFY_CHANGE_SECURITY|
			FILE_NOTIFY_CHANGE_SIZE|		// in file or subdir
			FILE_NOTIFY_CHANGE_ATTRIBUTES|
			FILE_NOTIFY_CHANGE_DIR_NAME|	// creating, deleting a directory or sub
			FILE_NOTIFY_CHANGE_FILE_NAME,	// renaming,creating,deleting a file
			&BytesReturned,					// bytes returned
			NULL,							// overlapped buffer
			NULL							// completion routine
			);

		if(!ret)
		{
			printf("\nFailed function ReadDirectoryChangesW()");
			continue;
		}

		if(MAX_PATH == wcstombs(szFilename, Buffer->FileName, MAX_PATH))
		{
			printf("\nFailed function wcstombs()");

			if(!memset(Buffer, 0x00, sizeof(Buffer)))
			{
				printf("\nFailed function memset()");
			}			

			continue;
		}

		iLen=0, iTempLen=0, iTrack=0, iFilenameEndLen=0;
		pdest = NULL;

		if(iCnt>1)
		{	
			iLen = strlen(szFilename);
			iTempLen = strlen(szTempFilename);
			if(iLen > iTempLen)
			{
				pdest = strstr(szFilename, szTempFilename);
				iTrack = 1;
			}
			else
			{
				pdest = strstr( szTempFilename, szFilename);
				iTrack = 2;
			}

			if(pdest)
			{
				switch(iTrack)
				{
				case 1:
					szFilename[iTempLen] = '\0';
					break;

				case 2:
					szFilename[iLen] = '\0';
					break;
				}
			}
		}

		if(!memcmp(szTempFilename, szFilename, strlen(szFilename)))
		{
			if(!memset(Buffer, 0x00, sizeof(Buffer)))
			{
				printf("\nFailed function memset()");
			}

			continue;
		}
		
		if(memcpy(szTempFilename, szFilename, MAX_PATH) == NULL)
		{
			printf("\nFailed memcpy()");
		}

		DWORD dwAction = Buffer[0].Action;

		if(!memset(Buffer, 0x00, sizeof(Buffer)))
		{
			printf("\nFailed function memset()");
			continue;
		}
		
		switch(dwAction)
		{
		case FILE_ACTION_ADDED: 
			//printf("\nfile added : %s", szFilename);
			printf("\t%s", szFilename);
			break; 

		case FILE_ACTION_REMOVED: 
			printf("file removed : %s\n", szFilename);
			break; 

		case FILE_ACTION_MODIFIED:
			//printf("\nfile added : %s", szFilename);
			printf("\t%s", szFilename);
			break; 

		case FILE_ACTION_RENAMED_OLD_NAME: 
			printf("file rename - oldname : %s", szFilename);
			break;

		default:
			printf("No file operation event matched");
			break;
		}

		iCnt++;

		memset(szFilename, 0x00, MAX_PATH);

	}//while

	CloseHandle( hDir );

	return 0;
}