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Table of Contents
4. Standard Units
4.24. DOS - MSDOS support unit
4.24.2. DOS Unit Procedures and Functions
4.24.2.2. DiskFreeKB
4.24.2.2. DiskFreeKB
Targets: MS-DOS, OS/2, Win32
Dos Unit, WinDos Unit
Returns the number of free Kilobytes on a specified disk drive.
Declaration:
function DiskFreeKB(Drive: Byte): Longint;
Remarks:
Drive is the drive to check where A = 1, B = 2, and so on.
If Drive is zero then the current drive is used.
DiskFree is useful in determining whether there is enough disk
space for disk output. A message can be displayed if there is not enough
disk space available.
Example:
uses
Dos;
begin
if (DiskFreeKB(0) < 100) and
IsFixed(0) then
begin
WriteLn('Insufficient Disk Space');
Halt(1);
end;
...
end.
See also:
DiskFree
DiskSize
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