INPUTERR
Synopsis
INPUTERR [message [, ...] ]
Arguments
| message | Optional — A string literal to write to the terminal screen. Can be an expression or variable that resolves to a literal value. If omitted, a blank line is written. |
Description
The INPUTERR statement performs several operations affecting the user terminal.
-
It advances the terminal cursor to the last line of the current page. For further information on page lines refer to the SYSTEM function and the ASSIGN statement
-
It writes the optional message to the terminal screen at the new cursor location. If you specify multiple comma-separated message arguments, they are displayed with tab spacing, similar to the PRINT or CRT command. You can also concatenate multiple message arguments, using the colon (:) concatenation operator.
-
It deletes (clears) any user input data stored in the type-ahead buffer. This affects the INPUTIF statement, which receives user input from the type-ahead buffer.
The message is cleared by the next INPUT @(col,row) statement.
Emulation
Caché and UniVerse clear user input data stored in the type-ahead buffer. All other emulations do not perform this action.
