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Updated wxPallete information.

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Added GetColourCount() implementation to Carbon (I wonder
    why it doesnt just use the generic implementation).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41405 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2006-09-24 10:27:12 +00:00
parent b9d880d638
commit df816ad92f
4 changed files with 38 additions and 20 deletions
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14
docs/latex/wx/palette.tex
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@@ -11,8 +11,18 @@
\section{\class{wxPalette}}\label{wxpalette}
A palette is a table that maps pixel values to RGB colours. It allows the colours
of a low-depth bitmap, for example, to be mapped to the available colours in a display.
A palette is a table that maps pixel values to RGB colours. It allows the
colours of a low-depth bitmap, for example, to be mapped to the available
colours in a display. The notion of palettes is becoming more and more
obsolete nowadays and only the MSW port is still using a native palette.
All other ports use generic code which is basically just an array of
colours.
It is likely that in the future the only use for palettes within wxWidgets
will be for representing colour indeces from images (such as GIF or PNG).
The image handlers for these formats have been modified to create a palette
if there is such information in the original image file (usually 256 or less
colour images). See \helpref{wxImage}{wximage} for more information.
%TODO: topic overview for wxPalette.
\wxheading{Derived from}