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Subj : Re: How to read a pixel from a DIB?
To   : borland.public.cpp.borlandcpp
From : Sebastian Ledesma
Date : Wed Oct 20 2004 01:03 pm


" Bruce Salzman" <bruce@nospam.org> escribió en el mensaje
news:41767a08$1@newsgroups.borland.com...
>
> "Sebastian Ledesma" <labo_no_sp@m_solidyne1.com> wrote in message
> news:41766038@newsgroups.borland.com...
> > Hi:
> >
> > Context: BC502+Win32+OWL
> >
> > There is a easy/official way to read a pixel from a TDib object? I
> > want to
> > know the RGB of that pixel
> > in order to adjust the color of a control above that Dib.
> >
>
> Select it into a TDC and use GetPixel()?
>
> Regards,
> Bruce
>
Bruce:

That's the way I will use, only lazzines before coding. I have to convert
X,Y coordinates into a linear coordinate (hey that's so hard!!! :-) ), also
what about for non 24 bits bitmaps. In 16 bits bitmaps I will have RGB in 5
bits, in 8 bits I will have a palette index, and in 4 bits (old 16 colored
bitmaps) something similar.

Saludos
Sebastian

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