Getting Volume Information
Windows provides several functions that applications can use to obtain
information about the file system.
The
GetVolumeInformation function retrieves information about the file system on a given volume. This
information includes the volume name, volume serial number, file system name,
file system flags, maximum length of a filename, and so on. The
SetVolumeLabel function sets the label of a file system volume.
The
GetSystemDirectory and
GetWindowsDirectory functions retrieve the paths to the Windows system directory and the Windows
directory, respectively.
The
GetDiskFreeSpace function retrieves organizational information about a volume, including the
number of bytes per sector, the number of sectors per cluster, the number of
free clusters, and the total number of clusters.
The
GetDriveType function indicates whether the volume referenced by the specified drive
letter is a removable, fixed, CD-ROM, RAM, or network drive.
The
GetLogicalDrives function identifies the volumes present. The
GetLogicalDriveStrings function retrieves a null-terminated string for each volume present. Use
these strings whenever a root directory is required.
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