Re: Working with bitmaps

This is a clue but it is not an answer.

On some code that I am no longer using, it seemed that black was 
equivalent to -$1000000 under Linux if a color was accessed through 
TBitmap.ScanLine but was equivalent to 0 under Windows.  However, if 
you look at the definition of clBlack, it is 0 for both Windows and 
Linux so something strange was going on.  

I am no longer using this code because I ran into too many problems 
with it.  It worked on my system but not on some other peoples 
systems.

On 11 Feb 2003 at 12:05, Alberto Narduzzi wrote:


> still migrating that project from Delphi to Kylix.
> 
> Now I'm facing some differences between the way Delphi (win?) and 
> Kylix 
> (Linux?) deal with BitBlt.
> 
> I had to change a color in the bitmap and then show it with a 
> AND/OR/XOR 
> masking. Well, this is no more working under Kylix, provided I 
> already 
> checked the parameters, for the header of BitBlt has changed under 
> Kylix.
> 
> Any clue?
> 
> TIA
> Batman
> 
> 
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