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Method of VI.

Sets the lock state of a VI. If interactive is FALSE (default), you can use password to either unlock a password-protected VI or set the password of an unprotected VI. If interactive is TRUE, LabVIEW ignores password and displays a dialog box that prompts you to change the lock state.

This method is similar to the Unlocked (no password), Locked (no password), and Password-protected options on the Protection page of the VI Properties dialog box.

Parameters

Name	Description
Lock State	Valid values include Not Locked, Locked (No Password), and Password-protected. If Not Locked, users can see and edit the block diagram. If Locked (No Password), users can see but not edit a block diagram. If Password-protected, users cannot see or edit the block diagram without a password.
Interactive	Specifies whether to display a dialog box that prompts you to change the lock state. The default is FALSE.
Password	If lock state is Password-protected, password is the new password. If you are changing lock state from Password-protected, password is the old password. The default is an empty string.
Put in Cache	If Lock State is Password-protected, Put in Cache specifies whether to place the new password in the cache. The default is FALSE.

Remarks

The following table lists the characteristics of this method.

Available in Run-Time Engine and Real-Time Operating System	No
Settable when the VI is running	Yes
Loads the front panel into memory	No
Need to authenticate before use	No
Loads the block diagram into memory	No
Remote access disallowed	No
Must wait until user interface is idle	Yes
Available with control VIs	Yes
Available with global VIs	Yes
Available with strict type definitions	No
Available with polymorphic VIs	Yes