Table of Contents
Advertisement
28 | Installing the Board and Driver
The static gray palette does not provide gray-mapped Windows
colors for the first and last 10 palette entries. Because the frame-
buffer assumes the Windows palette is in use, applications that
draw directly to the framebuffer display incorrectly. For exam-
ple, icons and button bitmaps may display in black and white.
Setting monitor preferences
In the Monitor Preferences field of the DOME tab, select the box
next to Pedestal. Then click Apply or OK.
For more information, refer to the documentation for your
monitor.
Setting driver options
The Disable DirectDraw driver option has specific conditions
that might affect your display. Be sure to read the following
sections before you choose this option.
To disable DirectDraw
In the Driver Options field of the DOME tab, select the box next
to Disable DirectDraw. Then click Apply or OK.
DirectDraw and multiheaded support
DirectDraw is an API that allows direct manipulation of the video
display. DirectDraw applications expect the screen to be repre-
sented as a single element. If you are using multiple Md4/PCV
screens, then more than one screen represents the desktop.
With multiple displays representing the desktop, DirectDraw
applications cannot access the entire desktop and may not
work properly.
DirectDraw limited screen size
Under the Windows NT 4.0 operating system, Build 1381,
DirectDraw supports screen sizes only up to 2048 x 2048 pixels.
DirectDraw applications may not function properly with bigger
screen sizes.
Advertisement
Table of Contents
