Browse Prior Art Database

Invisible Pushbuttons

IP.com Disclosure Number: IPCOM000114268D
Original Publication Date: 1994-Dec-01
Included in the Prior Art Database: 2005-Mar-28
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Harding, SS: AUTHOR [+2]

Abstract

A technique is disclosed that permits bit map images displayed in Presentation Manager* (PM) windows to be overlayed with invisible rectangular regions that behave like push-buttons. As they are invisible, the bit map image is not obscured by them. These regions effectively partition a bit map image into smaller images each of which behaves like a push-button.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Invisible Pushbuttons

      A technique is disclosed that permits bit map images displayed
in Presentation Manager* (PM) windows to be overlayed with invisible
rectangular regions that behave like push-buttons.  As they are
invisible, the bit map image is not obscured by them.  These regions
effectively partition a bit map image into smaller images each of
which behaves like a push-button.

      Invisible push-buttons can be implemented by using the
owner-draw feature of the standard PM push-button control.
Invisibility of such push-buttons is then achieved by simply ignoring
the owner draw control messages.

      A push-button drawn in this manner will function normally when
pressed, even though it cannot be seen by the user.  As the button
does
not paint itself, the underlying bit map image is not obscured.  The
designer of the window can lay out the bit map image with appropriate
visual cues for the user and then place invisible push-buttons over
the bit map as needed to achieve the desired user interface.
  *  Trademark of IBM Corp.