User manual

BarcoMed Driver Tab

while in this mode. The Enable Dithering check box will be grayed-out,

and dithering will be automatically disabled regardless of whether this

check box is checked. This complies with the Windows standard

interface method. If you are unsure whether or not your application

requires this “Static Gray Palette with NO System colors” mode, contact

your application provider.

Drawing Modes

In the Drawing Mode section you can choose from the following

Drawing Modes. If any of the options in this section are grayed out, then

they are not available for the model controller with which you are

working.

Enable DirectDraw

This option allows the user to enable or disable DirectDraw. DirectDraw

is a software interface that provides direct access to display devices

while maintaining compatibility 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 (such as OpenGL). DirectDraw is enabled by

default.

Enable Dithering

This option allows the user to enable or disable dithering. Dithering is a

technique for increasing the perceived range of colors in an image at

the cost of spatial resolution. Adjacent pixels are assigned differing color

values; when viewed from a distance, these colors seem to blend into a

single intermediate color. The technique is similar to the half-toning

used in black-and-white publications to achieve shades of gray. Please