IBM Power GXT800P, Инструкция по установке и эксплуатации

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Start the X server in the color planes and select one of the three graPHIGS
supported visuals for the root window:
Select the 8-bit visual:
xinit -- -x dbe -x abx -layer ð
Select the 24-bit DirectColor visual:
xinit -- -x dbe -x abx -layer ð -d 24 -cc DirectColor
Select the 24-bit TrueColor visual:
xinit -- -x dbe -x abx -layer ð -d 24 -cc TrueColor
This method requires no change to your application, but it does not give you the
best performance. Since the X server and graPHIGS are both running in the
color planes, graPHIGS will have to handle exposure events from manipulating
the X windows forcing more graPHIGS redraws.
If the application chooses to create its own window and it is not the top level
window, a Window Manager Install property must be added when creating the
window. This property allows a color map to be installed for the graPHIGS child
window in the overlays. This is created to support echoes.
Chapter 6. Software Application Considerations
6-3