Controlling Program Flow

Introduction to SCL Program Flow

You can control the flow of execution of your SCL application by

using any of several programming constructs such as DO loops and IF/THEN-ELSE statements
branching to labeled sections with the LINK statement
branching to PROGRAM, FRAME, MENU, CBT, or HELP entries with the GOTO statement
branching to another SCL entry with CALL DISPLAY
executing a method that is stored in a separate SCL entry with CALL METHOD
executing an object method by using dot notation
sending a method to an object with CALL SEND
sending a method to a FRAME entry control with CALL NOTIFY
specifying how labeled sections are executed, when and where submit blocks are executed, and whether execution halts when errors are encountered in dot notation with the CONTROL statement
creating a program halt handler to control how run-time errors are processed.

For more information about controlling the flow of execution in applications that use frames, refer to SAS Guide to Applications Development.