HP HP-UX User Manual

Supported Screen Options 
 
The following screen options are supported: 
 

•  CountTransparentInOverlayVisual  

•  ImageTextViaBitMap  
•  EnableIncludeInferiorsFix  

•  DisableGlxVisuals  

 
HP VISUALIZE-FXE/5/10 devices have two visuals in the overlay planes, both depth-8 PseudoColor. 
The first (default) overlay visual has 256 entries per colormap and no transparency. The second overlay 
visual has 255 entries per colormap and supports transparency.  
 
To allow applications to determine which visuals are in the overlay planes, both overlay visuals are 
listed in the SERVER_OVERLAY_VISUALS property attached to the root window. The default overlay 
visual has a transparent type of "0" (None), while the transparent overlay visual has a transparent type of 
"1" (TransparentPixel). 
 
If you need an overlay colormap that supports transparency, create the colormap using the visual that 
has transparency in its SERVER_OVERLAY_VISUALS property. 

 
The HP VISUALIZE-FXE/5/10 products support the OpenGL extension to X (GLX). If HP OpenGL is 
installed on anHP VISUALIZE-FXE/5/10 system, then the GLX extension offers new entry points for 
obtaining more information about X visuals. As part of offering extended visual information, some extra 
X visuals appear in the X visual list. The extra visuals are simply duplicates of visuals that would 
normally appear in the X visual list. In case that the extra visuals cause problems with applications, a 
screen option can be used to disable them.  
 
To disable the GLX visuals, add the DisableGlxVisualsScreen Option to the X*screens file.For 
example: 
 

Screen /dev/crt/ 
         ScreenOption 
             DisableGlxVisuals 

Graphics Administration Guide for HP-UX 10.20 

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