CTRL()

Class

Expressions and Type Conversion

Purpose

Function to return the numeric value of a control character

Syntax

CTRL(<expC>)

See Also

@...GET, @...MENU, INKEY(), LASTKEY(), NEXTKEY(), READKEY(), SET KEY

Description

The CTRL() function returns the numeric value of the specified control character. This function is extremely useful, when used in conjunction with the LASTKEY(), NEXTKEY() or READKEY() functions, for creating terminal independent programs.

Example

if readkey()=ctrl('g')
    set message to "Operation canceled."
endif

Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer