CLEAR TYPEAHEAD

Topic group Related topics

Clears the typeahead buffer, where keystrokes are stored while dBASE Plus is busy.

Syntax

CLEAR TYPEAHEAD

Description

If you have not issued a SET TYPEAHEAD TO 0 command, the keyboard typeahead buffer stores keystrokes the user enters while dBASE Plus is busy processing other data. When the processing is complete and keyboard input is enabled again, dBASE Plus processes and deletes the values in the buffer in the order they were entered until the buffer is empty. Use CLEAR TYPEAHEAD to discard any keystrokes that may have been entered during processing, to ensure that the keyboard data currently being processed comes directly from the keyboard.

For example, if you want to be able to fill in multiple screens quickly, one after the other, you would not issue CLEAR TYPEAHEAD during processing. This would let you continue typing data while data from one screen was being saved and the next (blank) one being displayed. The data you entered during processing would be entered onto the new screen when it appeared. On the other hand, if you want to make sure that no data is entered until the next screen is displayed, issue CLEAR TYPEAHEAD after displaying the blank screen and before beginning data entry.