[[lazarus] Pixels storage for TBitmap]

[Michal Bukovjan]

You could add a public byte/word property of TBitmap, say DepthConversion, and
let the component/application decide whichever it needs :

0 .. for default color depth (of the file),
1-32 for specific color depth (your second case)
$FF  for screen color depth

This may also be an enumerated type, whatever.

Michal Bukovjan

P Jean dit Bailleul <jdb at abacom.com> wrote:
> While reading the BMP file, i can translate them to the following color
> depth :
> 1) use the color depth of the BMP file
> 2) a standard (say 32 bits) whatever the color depth of the BMP and of the
> screen
> 3) use the color depth of the screen
> 
> NB : Delphi use the resolution of the screen. I think they did so because
> under windows, if you use the color depth of the screen it work quicker
> than any other color depth (M$ says so in the API description).
> using the color depth of the screen seem to me a bad choice because if you
> want to edit a BMP without displying it, you should be able to work with at
> least the BMP resolution.
> 
> Which solution do think i should use?
> P Jean dit Bailleul (jdb at abacom.com)
> 
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