The DisplayManager tool has been updated with Select 4 to use the new interfaces for mode string processing and to allow control of the display drivers.

Display devices

The iconbar menu includes a submenu for selecting the desktop display device. On selecting the entry from the menu, the current display device will be shut down and the selected device enabled. The mode which was used last for that device will be selected as the current desktop mode. If no mode had been used for that device, the configured mode will be selected.

Mode strings

The mode strings used by the display manager are now processed by the OS_ScreenMode routines (see the OSScreenMode document for more details). This ensures that future extensions to mode selection will be available through the DisplayManager interface. Note that teletext mode selectors will not be usable within the desktop.

256 colour modes

In earlier versions of the Display Manager, the selection of a 256 colour mode from the menus would actually select a 64 colour mode (64 colours, with 4 different brightness levels). This is no longer the case. The selection of a 256 colour mode from the menu will now select a true 256 colour mode.

This documentation is copyright 3QD Developments Ltd 2013 and may not be reproduced or published in any form without the copyright holders permission. RISC OS is subject to continuous development and improvement as such all information is reproduced by 3QD Developments Ltd in good faith and is believed to be correct at the time of publication E&OE. 3QD Developments Ltd cannot accept any liability for any loss or damage arising from the use of any information provided as part of the RISC OS Documentation.

HTML document version 1.03 3rd November 2015