VALIDDRIVE( )

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Returns true if the specified drive exists and can be read. Returns false if the specified drive does not exist or cannot be read.

Syntax

VALIDDRIVE(<drive expC>)

<drive expC>

The drive to be tested, which can be either:

A drive letter, optionally followed by a colon, or

The UNC name for a drive

Description

Use VALIDDRIVE( ) to determine if a specified drive exists and is ready before using CD, SET DEFAULT, SET DIRECTORY or SET PATH. VALIDDRIVE( ) is also useful if your program copies files to or from a drive, or includes drive letters in any file names.

VALIDDRIVE( ) can verify any drive specified, including drives created by partitioning a hard disk and mapped network drives. Checking for a floppy disk or network drive takes a few seconds, so you should display a message before you check.