HOWTO: Manipulate Windows Files and Folders from AVR code.

The information in this article applies to:

• ASNA Visual RPG, All Versions
• Windows
• ActiveX

SUMMARY:

Microsoft provides an ActiveX component called "Scripting Runtime Support". With it you can use the MS scripting runtime support to create, copy, delete, files and folders.

MORE INFORMATION:

Where to find it:

Searching MSDN for "scripting runtime", you will find the following information at http://msdn.microsoft.com/library/officedev/odeopg/deconthemicrosoftscriptingruntimeobjectlibrary.htm:

The Microsoft Scripting Runtime Object Library:

When you install various Microsoft applications, one of the object libraries installed on your system is the Microsoft Scripting Runtime object library. This object library contains objects that are useful from either VBA or script, so it's provided as a separate library.

The objects in the Scripting Runtime library provide easy access to the file system, and make reading and writing to a text file much simpler than it is in previous versions.

• Documentation:

This page has the Library's Reference. Use the 'FileSystemObject' as your starting point. http://msdn.microsoft.com/scripting/vbscript/doc/VBSFSOTOC.htm

• Errors:

For a description of the errors returned by *Err.Number (you'll have to take only the last 2 bytes from the error, to do this create a DS with a long and a short starting at offset 0 of the DS, store the *Err.Number on the long and use the short) please see: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/vtorierrors.asp

• Examples:

ASNA has provided a simple example for referencing and using this component starting with AVR Release 3.1 Version 9.490. Look for it in "\Program Files\ASNA\Examples\AVR31\Using_ActiveX\Folder-File Manipulation".

TIP: To find out which application installed scrrun.dll (MS Scripting Runtime ActiveX), you can use this link below to determine the file version and application:

• HOWTO: Determining which Microsoft Software installed a specific version of a DLL

Other ASNA KB Articles:

• HOWTO: Using Object Browser to obtain more Information on Third Party Controls

Keywords: folder, example, FileSystemObject, file, manipulate, develop, delete, rename, directory