Barco Coronis 5MP Mammo User Manual download pdf (Page 68)

BarcoMed Driver Tab

grayed-out, and DirectDraw’s access to the hardware will be

automatically disabled regardless of whether this check box is checked.

DirectDraw is still usable through DirectDraw’s Hardware Emulation

Layer.

UserModifiable Color Palette

This option allows applications to modify the palette contents

dynamically. As indicated in figure 30, this mode reserves the first 10

and last 10 entries in the palette for the Windows operating system, but

applications can manipulate the middle 236 entries. This is the standard

palette mode as configured by Windows.

Figure 30

Static Gray Palette including standard system colors

This option sets the palette to be a static set of 256 gray values.

Therefore, applications are denied the ability to dynamically change or

allocate palette entries. This prevents palette conflicts between

applications, which can cause image color values to appear distorted in

the background application.

As shown in figure 31, the 20 standard system colors are converted

from RGB to gray values. The rest of the 236 entries from index 10 to

245 contain the missing gray values so that the palette has the full 256

gray values within it.

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Barco Coronis 5MP Mammo User Manual Page 68