Checks a key in the license file of the system.
- Type: Integer The number of the key you want to check.
The license file turns on or off different system capabilities. Use this function to check a key in the file for the current user. If the user has no access rights to the object, a message is displayed and the process is terminated.
If you omit this function, the user will have the ability to continue regardless of whether the appropriate license file is open.