The following table lists HLC library functions that enable HLC applications to use the screen display in a manner consistent with ABL display standards.

Table 1. Functions that interact with ABL displays
Function Description
proscopn( ) Restores a UNIX terminal to its I/O mode before OpenEdge was run
proclear( ) Clears the display
prosccls( ) Sets a UNIX terminal to raw mode
promsgd( ) Displays a message on the display (in any I/O mode)