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Configuring Display Settings with Windows NT | 31
Setting the driver option
The driver option DirectDraw is available on the DOME tab.
Click Disable DirectDraw on the DOME tab to turn off this
feature. Click again to turn on.
DirectDraw and multiheaded support
DirectDraw™ is an Application Program Interface (API) that
allows direct manipulation of the video display. DirectDraw
applications expect the screen to be represented as a single
element. If you are using multiple Md5/PCX screens, 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.
Microsoft is aware of this problem and plans to correct it in a
future release of Windows NT. Although DOME has tried to
provide whatever support possible within this limitation, DOME
cannot ensure DirectDraw compatibility with either multiple
screens or a screen size greater than 2048 x 2048 pixels.
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