BIOS Video and DirectX for Apple II Emulator

["Bryan Parkoff" <BParkoff@satx.rr.com>]

    You may be surprised that exact color does not look the same.  For
example, BIOS Video shows 16 out of 256 colors on 320x200 resolution that it
only uses 13h on INT 10h.  DirectX 7-9 shows 16 out of 16,777,216 colors on
either 320x200 resolution and 640x480 resolution.  Blue color is little
bright in BIOS Video than DirectX.  Please explain why.
    Try to compare XGS-DOS and XGS-Win32.  You will notice that the colors
are not the same.  XGS-DOS is the exact same as real Apple IIgs.  The
problem is that XGS-Win32 makes exact color little darker.  You use 16-bit
color that will show little dark blue color, but you use 24-bit color that
will show darker blue color than 16-bit color.  You can notice why it is the
difference between 16-bit and 24-bit colors.
    Do you have idea how to improve color-looking that should match the SAME
color between 16-bit and 24-bit?  Or..should we change RGB function to
match?  I always complain about the color problem, but XGS-DOS is much
better.  Is it true that 16,777,216 is the maximum for colors?  I have heard
that it may be billion color than 16.7 million color.
    Is there a way that we can program Apple II Emulator to match real Apple
IIgs color?  Or...should we add RGB scale/scroll in this emulator that it
allows the users to modify RGB scale/scroll that will cause the color to
change.  Please adsvise....

--
Yours Truly,

Bryan Parkoff
BParkoff@satx.rr.com