RISC OS Open
Safeguarding the past, present and future of RISC OS for everyone
ROOL
Home | News | Downloads | Bugs | Bounties | Forum | Documents | Photos | Contact us
Account

AutoScroll Status Flags

WindowManager
» SWI Calls
» Wimp_AutoScroll
» AutoScroll Status Flags

AutoScroll Status Flags

Bits Meaning when set
0 Horizontal scrolling enabled
1 Vertical scrolling enabled
2 Scroll Requests enabled
7 Clear
8 Autoscrolling has commenced – this bit is set after a pause is completed, and remains set until the pointer enters the centre zone
9 Pointer is outside the window’s visible area
10 Pointer is within one or two pause zones
11 Pointer is within the centre zone
12 Pointer is left of the centre zone
13 Pointer is below the centre zone
14 Pointer is right of the centre zone
15 Pointer is above the centre zone
16 There is work area to the left of the visible area (always clear if bit 0 is clear)
17 There is work area below the visible area (always clear if bit 1 is clear)
18 There is work area to the right of the visible area (always clear if bit 0 is clear)
19 There is work area above the visible area (always clear if bit 1 is clear)
All other bits must be ignored

Notes

This block is used in conjunction with Wimp_AutoScroll and inform you of the status of the AutoScroll currently in progress.

If bits 0 and 1 are clear AutoScrolling is switched off.

See also

  • AutoScroll Block
  • AutoScroll Entry Flags
  • Scroll_Requests
  • Wimp_AutoScroll
Revised on December 9, 2013 14:37:14 by Jeffrey Lee (213) (91.84.11.161)
Edit | Back in time (2 revisions) | See changes | History | Views: Print | Source | Linked from: Wimp_AutoScroll, AutoScroll Block, AutoScroll Entry Flags

Search the Wiki

Social

Follow us on and

ROOL Store

Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.

Donate! Why?

Help ROOL make things happen – please consider donating!

RISC OS IPR

RISC OS is an Open Source operating system owned by RISC OS Developments Ltd and licensed primarily under the Apache 2.0 license.

Navigation

  • Home Page
  • All Pages
  • Recently Revised
  • Authors
  • Feeds
Site design © RISC OS Open Limited 2018 except where indicated
The RISC OS Open Instiki theme is based on Insitki's default layout

Valid XHTML 1.0  |  Valid CSS

Instiki 0.19.1(MML+)
This site runs on Rails

Hosted by Arachsys