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copied!<p>This <a href="http://msdn.microsoft.com/en-us/library/aa365261(VS.85).aspx" rel="nofollow noreferrer">article</a> should help. Basically, you create one or more notification object such as:</p> <pre> HANDLE dwChangeHandles[2]; dwChangeHandles[0] = FindFirstChangeNotification( lpDir, // directory to watch FALSE, // do not watch subtree FILE_NOTIFY_CHANGE_FILE_NAME); // watch file name changes if (dwChangeHandles[0] == INVALID_HANDLE_VALUE) { printf("\n ERROR: FindFirstChangeNotification function failed.\n"); ExitProcess(GetLastError()); } // Watch the subtree for directory creation and deletion. dwChangeHandles[1] = FindFirstChangeNotification( lpDrive, // directory to watch TRUE, // watch the subtree FILE_NOTIFY_CHANGE_DIR_NAME); // watch dir name changes if (dwChangeHandles[1] == INVALID_HANDLE_VALUE) { printf("\n ERROR: FindFirstChangeNotification function failed.\n"); ExitProcess(GetLastError()); } </pre> <p>and then you wait for a notification:</p> <pre> while (TRUE) { // Wait for notification. printf("\nWaiting for notification...\n"); DWORD dwWaitStatus = WaitForMultipleObjects(2, dwChangeHandles, FALSE, INFINITE); switch (dwWaitStatus) { case WAIT_OBJECT_0: // A file was created, renamed, or deleted in the directory. // Restart the notification. if ( FindNextChangeNotification(dwChangeHandles[0]) == FALSE ) { printf("\n ERROR: FindNextChangeNotification function failed.\n"); ExitProcess(GetLastError()); } break; case WAIT_OBJECT_0 + 1: // Restart the notification. if (FindNextChangeNotification(dwChangeHandles[1]) == FALSE ) { printf("\n ERROR: FindNextChangeNotification function failed.\n"); ExitProcess(GetLastError()); } break; case WAIT_TIMEOUT: // A time-out occurred. This would happen if some value other // than INFINITE is used in the Wait call and no changes occur. // In a single-threaded environment, you might not want an // INFINITE wait. printf("\nNo changes in the time-out period.\n"); break; default: printf("\n ERROR: Unhandled dwWaitStatus.\n"); ExitProcess(GetLastError()); break; } } } </pre>

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