DIREXISTS: Difference between revisions
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(Created page with "{{DISPLAYTITLE:_DIREXISTS}} The _DIREXISTS function determines if a designated file path or folder exists and returns true (-1) or false (0). {{PageSyntax}} : {{Parameter|dirExists%}} = _DIREXISTS({{Parameter|filepath$}}) {{PageDescription}} * The {{Parameter|filepath$}} parameter can be a literal or variable string path value. * The function returns -1 when a path or folder exists and 0 when it does not. * The function reads the system information...") |
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* The function will use the appropriate Operating System path separators. [[_OS$]] can determine the operating system. | * The function will use the appropriate Operating System path separators. [[_OS$]] can determine the operating system. | ||
* '''This function does not guarantee that a path can be accessed, only that it exists.''' | * '''This function does not guarantee that a path can be accessed, only that it exists.''' | ||
* '''NOTE: Checking if a folder exists in a CD drive may cause the tray to open automatically to request a disk when empty.''' To find drives in Windows, use this API Library: [ | * '''NOTE: Checking if a folder exists in a CD drive may cause the tray to open automatically to request a disk when empty.''' To find drives in Windows, use this API Library: [[Windows Libraries#Disk Drives|Disk Drives]] | ||
Revision as of 22:54, 21 April 2022
The _DIREXISTS function determines if a designated file path or folder exists and returns true (-1) or false (0).
Syntax
- dirExists% = _DIREXISTS(filepath$)
Description
- The filepath$ parameter can be a literal or variable string path value.
- The function returns -1 when a path or folder exists and 0 when it does not.
- The function reads the system information directly without using a SHELL procedure.
- The function will use the appropriate Operating System path separators. _OS$ can determine the operating system.
- This function does not guarantee that a path can be accessed, only that it exists.
- NOTE: Checking if a folder exists in a CD drive may cause the tray to open automatically to request a disk when empty. To find drives in Windows, use this API Library: Disk Drives
Examples
Example: Checks if a folder exists before proceeding.
IF _DIREXISTS("internal\temp") THEN PRINT "Folder found." END IF |
See also