# 5. Header File

AFS Link outputs header file in addition to AFS file at the same time.

Header file contains file ID definitions for AFS file access that come from original file names so that they can be handled easily.

This header file can be used in your application as is.

## 5.1 Symbols

Execute the [Option] command from the [Tool] menu, and the [Option] dialog will open. In this dialog, the setting for symbols defined in the header file can be set up.

Configurable items are shown below:

Only Filename | Defines symbol by using original file name only.
Cut overlapping string | Defines symbol in full path format, any part of which is not used in other symbols.
Full Path | Defines symbol in full path format.

## 5.2 Index ID

(1) Changing Index ID

Index ID's for management in AFS file can be changed to any value.

Click the right mouse button on the target file, and enter any value in the [Index] dialog.

(2) Adding Prefix

Index ID in AFS file can have any prefix word.

The prefix word can be specified in the [AFS file creation] dialog.

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