Article_src.zip_GetDiskFreeSpaceEx

// HardDiskManager.cpp: implementation of the CHardDiskManager class. // ////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "HardDiskManager.h" ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// CHardDiskManager::CHardDiskManager() { // bytes available to caller m_uliFreeBytesAvailable.QuadPart = 0L; // bytes on disk m_uliTotalNumberOfBytes.QuadPart = 0L; // free bytes on disk m_uliTotalNumberOfFreeBytes.QuadPart = 0L; } CHardDiskManager::~CHardDiskManager() { } bool CHardDiskManager::CheckFreeSpace(LPCTSTR lpDirectoryName) { if( !GetDiskFreeSpaceEx( lpDirectoryName, // directory name &m_uliFreeBytesAvailable, // bytes available to caller &m_uliTotalNumberOfBytes, // bytes on disk &m_uliTotalNumberOfFreeBytes) ) // free bytes on disk return false; return true; } DWORD64 CHardDiskManager::GetFreeBytesAvailable(void) { return m_uliFreeBytesAvailable.QuadPart; } DWORD64 CHardDiskManager::GetTotalNumberOfBytes(void) { return m_uliTotalNumberOfBytes.QuadPart; } DWORD64 CHardDiskManager::GetTotalNumberOfFreeBytes(void) { return m_uliTotalNumberOfFreeBytes.QuadPart; } double CHardDiskManager::GetFreeGBytesAvailable(void) { return (double)( (signed __int64)(m_uliFreeBytesAvailable.QuadPart)/1.0e9 ); } double CHardDiskManager::GetTotalNumberOfGBytes(void) { return (double)( (signed __int64)(m_uliTotalNumberOfBytes.QuadPart)/1.0e9 ); } double CHardDiskManager::GetTotalNumberOfFreeGBytes(void) { return (double)( (signed __int64)(m_uliTotalNumberOfFreeBytes.QuadPart)/1.0e9 ); }