1-7-10

Variables and Folders

Assigning Values and Other Data to a System Variable

As its name suggests, a system variable is a variable that is created and used by the system (page 1-7-5). Some system variables allow you to assign values and other data to them, while some system variables do not. For more information about which variables allow you to control their contents, see the “System Variable Table” on page α-7-1.

Locking a Variable or Folder

Locking a variable or folder protects against inadvertently deleting it or changing its contents. You can unlock a locked variable or folder to re-enable deletion and data assignment.

•Locking a variable disables the following operations on it: delete, overwrite, rename, and move (to another folder).

•Locking a folder makes it impossible to delete or rename the folder.

Tip

•In terms of ClassPad variables, “lock” is completely different from “protect”. For more information about “protect”, see “Variable Data Types” on page 1-7-3.

You can lock and unlock a variable or folder using either the Variable Manager or commands.

u To lock or unlock a variable or folder using the Variable Manager

In the Variable Manager, select the folder or variable you want to lock or unlock and then tap [Edit] - [Lock] or [Edit] - [Unlock]. For more information, see “1-8 Using the Variable Manager”.

u To lock or unlock a variable or folder using commands

In the Main application or in a program, execute one of the commands described below.

To do this:

Use this command syntax:

Lock a variable

Lock <variable name>

Unlock a variable

Unlock <variable name>

Lock a folder

LockFolder <folder name>

Unlock a folder

UnlockFolder <folder name>

For information about commands, see “12-6 Program Command Reference”.

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