Barco Nio 5MP, Системное руководство

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Software installation
46 System manual Nio 5MP
256 shades of gray. Therefore, applications are denied
the ability to dynamically change or allocate palette
entries. This prevents palette conflicts between applica-
tions, which can cause image color values to appear dis-
torted in the background application.
As shown in figure 23, each of the 256 entries in the pal-
ette has an RGB value of (i, i, i) where i is the index from
0 to 255.
Figure 23
If you are unsure whether or not your application
requires this “Static Gray Palette with NO System colors”
mode, contact your application provider.
Drawing mode
You can choose whether or not to enable DirectDraw.
Enable DirectDraw
This option allows the user to enable or disable Direct-
Draw. DirectDraw is a software interface that provides
direct access to display devices while maintaining com-
patibility with the Windows graphics device interface
(GDI). DirectDraw provides a device-independent way
for applications to gain access to the hardware features
of specific display devices. If you enable DirectDraw,
your application will have the choice of using DirectDraw
or GDI. If you disable DirectDraw, your application will
use GDI instead of DirectDraw. Please note that in any
case, your application can always use BarcoMed driver
functions (i.e. WinBarco) or other graphics extensions