HP Visualize J282 hp workstations - hp-ux 10.20 graphics administration guide - Page 56
CRX-48Z Device-Dependent Information, Supported Visuals, Supported Screen Options
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When this option is enabled, the X server does the following: • Specifies that the overlay visual has 256 entries. • Creates the default colormap with entry 255 pre-allocated to Transparent. A client calling XAllocNamedColor for entry Transparent in the default colormap will be returned entry 255. • For all other colormaps, returns all 256 entries as allocable, but issues a warning message: Warning: XCreateColormap is creating 256 entry cmaps in overlay visual. Though allocable, entry 255 is hard-coded to transparency. This warning is issued once per server execution. CRX-48Z Device-Dependent Information Supported Visuals The following visuals are supported: • Class PseudoColor Depth 8 Layer Image supports DBE and MBX hardware double-buffering • Class PseudoColor Depth 8 Layer Overlay supports DBE and MBX software double-buffering • Class DirectColor Depth 24 Layer Image - • supports DBE and MBX hardware double-buffering • Class TrueColor Depth 24 Layer Image - supports DBE and MBX hardware double-buffering Supported Screen Options The following Screen Options are supported: • CountTransparentInOverlayVisual • SwapBuffersOnVBlank • ImageTextViaBitMap • EnableIncludeInferiorsFix CRX-48Z Transparent Overlay Visuals The default number of colormap entries in the overlay visual for the CRX-48Z is 255. Entry 255 is excluded because its value is hard-coded to transparent (that is, show the image planes). This may have the following two consequences for X11 applications running in the overlay planes (the default visual): • Clients attempting to allocate 256 entries do not have their request granted. Page 56 Graphics Administration Guide for HP-UX 10.20