Password protect Clarion 6.3 App

I am trying to create a login screen for a clarion ABC Templated app and have a problem creating the code to check the user entered password to the stored password and allowing entry into the application.

I have created the screen and placed a hidden table from my User file. The user files consists of username and userpassword.

I havea declaired a local userpasswordinput and the created a fomular to compare the userpassword to the local uperpassword input.

What is the best way to get the user access to the application if the password he enters is correct and close the program if the password is wrong.

Thanks in advance Charlie