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Installing the Md4/PCX Board and Driver in a PC
31
Static gray palette
The static gray palette provides 256 shades of gray in a
linear static palette. This palette does not reserve the first
and last 10 palette entries for icons and other standard
Windows graphics, which frees the entire grayscale ramp
for applications.
The static gray palette does not provide gray-mapped
Windows colors for the first 10 and last 10 palette entries.
Because the framebuffer assumes the Windows palette is
in use, applications that draw directly to the framebuffer
display incorrectly. For example, icons and button bitmaps
may display in black and white.
Calibration with static gray palette
To run DOME calibration with the static gray palette,
you need either Luminance Calibration System 1.5 or later,
or Calibration TQA™ 2.0 or later.
Nonlinear static gray palette
The nonlinear static gray palette sets the first 10 and last 10
palette entries to gray-mapped Windows colors. The mid-
dle 236 entries are ramped in ascending order, excluding
the first 10 and last 10 palette entries. Windows applica-
tions that use the first 10 and last 10 palette entries as
Windows colors display correctly on the screen.
Although the nonlinear static gray palette provides correct
colors for applications using the Windows palette, colors
display incorrectly if the application assumes that a static
palette is always ramped.
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