Skip past navigation linksSecure Global Desktop Administration Guide > Applications, documents and hosts > Color quality (--quality)

Color quality (--quality)

Objects with this attribute

Object Manager

Attribute name Usage
Color Quality Choose a setting from the list.

Command line

Command optionUsage
--quality automatic|best|24|21|18|16|15|12|9|6 Specify a valid setting.

Description

The effective color depth displayed on client devices. Reducing color quality reduces bandwidth usage, but also reduces the number of colors which may be displayed.

Note If the Color Depth has been set to 8-bit, this attribute is not available. If the Color Depth has been set to 16-bit, only the 16-bit, 15-bit, 12-bit, 9-bit and 6-bit settings will be available.

The default setting best fixes the color depth at the most appropriate setting according to network conditions at the time the user starts the application. The color depth will not change while the session is running.

Specify automatic to allow the quality level to change at any time during the session depending on network conditions. This setting works within the following ranges:

The following table shows the effect on color quality of using a numeric quality setting:

Color quality setting Approximate color quality for
16-bit applications
Approximate color quality for
24-bit applications
24 - 100%
21 - 88%
18 - 75%
16 100% 67%
15 94% 63%
12 75% 50%
9 56% 38%
6 38% 25%

The physical color quality of the client device is not forced to match that of the X session. If a 24-bit color session is being displayed on an 8-bit client device, the client will dither the image locally so that the session can be displayed reasonably.

Examples

Skip past command syntax or program code--quality 12

Sets the color quality to 12-bit color. If the Color Depth has been set to 24-bit, this reduces color quality to approximately 50% on client devices.

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