Image Text Via Bitmap; Obsolete Environment Variables; Special Device Files - HP b2600 Administration Manual

Examples of Relevant Graphics Device:
Integrated Color Graphics, Color Graphics cards, Internal Color Graphics
X*screens File Screen Option To Use:
3BitCenterColor

Image Text Via BitMap

When using the Xlib XDrawImageString() call to draw text, a visual effect may be seen where text
appears to flicker as the background and foreground are drawn in distinct graphics operations. This
option is available to eliminate the flicker effect but at the expense of reduced text performance. The
option will make the X server first draw text to an off-screen pixmap prior to displaying it to the screen.
X*screens File Screen Option To Use:
ImageTextViaBitMap
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Note: Using this option will reduce text performance.
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The ImageTextViaBitMap screen option is supported on all graphics devices supported on the HP
9000/700 machines, except the following:
PersonalVRX, TurboVRX
Freedom Series™ Graphics (S3150, S3250 and S3400)

Obsolete Environment Variables

These HP-UX 9.x environment variables are no longer supported:
HP_SUPPRESS_TRUECOLOR_VISUAL
HP_COLORMAP_MANAGEMENT_SCHEME
WMSHMSPC
MBX_SWAP_BUFFERS_ON_VBLANK
CRX24_COUNT_TRANSPARENT_IN_OVERLAY_VISUAL

Special Device Files

Special device files are used to communicate between the computer and peripheral devices. The X
server requires the use of a special device file for each graphics card present in the system. On HP-UX
10.x systems, five special graphics device files are automatically created. The first or primary graphics
card, also known as the "console", uses the "/dev/crt" or "/dev/crt0" device file. The others are called
"crt1", "crt2", and "crt3" and also reside in "/dev". Those systems containing multiple graphics devices
on a single card (Dual Color Graphics and Dual CRX, for example) need to have special device files
manually created for them.
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Graphics Administration Guide for HP-UX 10.20