GetDiskFreeSpaceA function

Retrieves information about the specified disk, including the amount of free space on the disk.

Syntax

BOOL GetDiskFreeSpaceA(
  LPCSTR  lpRootPathName,
  LPDWORD lpSectorsPerCluster,
  LPDWORD lpBytesPerSector,
  LPDWORD lpNumberOfFreeClusters,
  LPDWORD lpTotalNumberOfClusters
);

Parameters

lpRootPathName

The root directory of the disk for which information is to be returned. If this parameter is NULL, the function uses the root of the current disk. If this parameter is a UNC name, it must include a trailing backslash (for example, "\MyServer\MyShare"). Furthermore, a drive specification must have a trailing backslash (for example, "C:"). The calling application must have FILE_LIST_DIRECTORY access rights for this directory.

lpSectorsPerCluster

A pointer to a variable that receives the number of sectors per cluster.

lpBytesPerSector

A pointer to a variable that receives the number of bytes per sector.

lpNumberOfFreeClusters

A pointer to a variable that receives the total number of free clusters on the disk that are available to the user who is associated with the calling thread.

If per-user disk quotas are in use, this value may be less than the total number of free clusters on the disk.

lpTotalNumberOfClusters

A pointer to a variable that receives the total number of clusters on the disk that are available to the user who is associated with the calling thread.

If per-user disk quotas are in use, this value may be less than the total number of clusters on the disk.

Return Value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

The GetDiskFreeSpaceEx function lets you avoid some of the arithmetic that is required by the GetDiskFreeSpace function.

Symbolic link behavior—If the path points to a symbolic link, the operation is performed on the target.

Requirements

   
Windows version Windows XP [desktop apps | UWP apps] Windows Server 2003 [desktop apps | UWP apps]
Target Platform Windows
Header fileapi.h (include Windows.h)
Library Kernel32.lib
DLL Kernel32.dll

See Also

Disk Management Functions

GetDiskFreeSpaceEx

GetDriveType