You may have come across a situation where a Question box needs to be displayed to user and depending upon the response; a block of code needs to be executed.
Syntax:
Qstbox “[Message that needs to be displayed]” Using [L] Rep
Where REP is a local libelle
Example:
Consider an example where a dialog box “Do you want to proceed” is displayed to user. Upon clicking yes, a message box displaying YES is displayed.

Below is the Dialog box that is displayed :

Below is the response on hitting Yes :

Hope this helps.