DeleteDir

InstallShield 2018 » InstallScript Language Reference

The DeleteDir function deletes a subdirectory. Depending on the value you use in the parameter nFlag, you can delete a subdirectory only if it is empty, delete a subdirectory even if it contains files, or delete an entire root directory. Set nFlag with extreme caution.

Note • Note the following restrictions:

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You cannot use DeleteDir to delete the current directory.

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You cannot delete files on a network system where you lack the appropriate rights.

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DeleteDir cannot delete read-only, hidden, or system files.

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If DeleteDir encounters a read-only file, the function can fail after having deleted only some of the files in the subdirectory.

Syntax

DeleteDir( szDir, nFlag );

Parameters

DeleteDir Parameters

Parameter

Description

szDir

Specifies the fully qualified name of the directory to delete.

nFlag

Specifies deletion options. Pass one of the following predefined constants in this parameter:

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ALLCONTENTS—Deletes the directory in szDir, including all subdirectories and files beneath it. The directory you are deleting must be a subdirectory and cannot be a root directory of the drive.

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ONLYDIR—Deletes the directory in szDir only if it is empty. Otherwise, the function fails.

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ROOT—Deletes the directory in szDir even if it is the root directory. If szDir is a root directory, DeleteDir will delete everything on the disk.

Return Values

DeleteDir Return Values
Return Value	Description
0	Indicates that the function successfully deleted the subdirectory.
< 0	Indicates that the function was unable to delete the subdirectory.

DeleteDir

InstallShield 2018 Help Library

September 2018