Kbase 16627: Code for PAGE-UP and PAGE-DOWN in an EDITOR widget
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
5/10/1998 |
|
Code for PAGE-UP and PAGE-DOWN in an EDITOR widget
Programmers can code their own page-up and page-down behavior in an
editor widget using the 4GL as follows:
ON PAGE-UP OF editor-1 IN FRAME frame-a DO:
ASSIGN editor-1:CURSOR-LINE = editor-1:CURSOR-LINE -
editor-1:INNER-LINES NO-ERROR.
END.
ON PAGE-DOWN OF editor-1 IN FRAME frame-a DO:
ASSIGN editor-1:CURSOR-LINE = editor-1:CURSOR-LINE +
editor-1:INNER-LINES NO-ERROR.
END.
The NO-ERROR is necessary to suppress error messages when the user
attempts to page past the top or bottom of the editor contents.
Progress Software Technical Support Note # 16627