
It is possible to set the priority of the palette of characters and
graphics by specifying "_PAL_COMP" in "index". In this case, specify
the palette priority in "color".
color Palette priority
---------------+-----------------------
CRT_PAL_COMP Composite (default)
CRT_PAL_CHAR Character over graphics
CRT_PAL_GRPH Graphics over character
"Composite" means that the intensity of each color of character and
one of graphic pixel are mixed. (logical OR). For example, in case
that
Character color R/G/B = 0x30/0x00/0x20
Graphic color R/G/B = 0x00/0x20/0x38
Composite color R/G/B = 0x30/0x20/0x38
is output on the screen.
The displayed colors on the screen are for each setting as follows.
Character Graphics
palette index palette index Dot color
---------------+---------------+---------------+----------------
Composite 0 0 Composite color
Not 0 0 Composite color
0 Not 0 Composite color
Not 0 Not 0 Composite color
---------------+---------------+---------------+----------------
Character 0 0 Graphic color
over Graphics Not 0 0 Character color
0 Not 0 Graphic color
Not 0 Not 0 Character color
---------------+---------------+---------------+----------------
Graphics 0 0 Character color
over Character Not 0 0 Character color
0 Not 0 Graphic color
Not 0 Not 0 Graphic color
This table indicates that the palette index 0 is the special part
for overlapping the character and the graphics. Allocate "Black"
to the palette 0 as same as initial value so far as there are no
exceptional reasons.
It is possible to specify "Normal" or "Reverse" display for the
monochrome LCD by specifying "_PAL_RVS" in "index". In this case,
specify "Normal"/"Reverse" in "color".
color Setting Display(Standard)
---------------+-----------------------+---------------------
CRT_PAL_RVS Reverse (default) Black char on white.
CRT_PAL_NML Normal White char on black.
This setting is effective to only monochrome LCD. It is impossible
to change the display condition of CRT or color LCD. This setting
is effective to only the C user screen. The other screens (such as
the CNC's screens) are not affected by this setting.