Re: fast drawing in delphi

Maarten Wiltink wrote:
> "Paul Dunn" <paul.dunn4@xxxxxxxxxxxx> wrote in message
> news:SwUpf.48676$uR.25445@xxxxxxxxxxxxxxxxxxxxxxx
> [...]
>> DirectX isn't an "image package" solution. The DirectDraw component
>> (or Direct3D as it is now) ...
>
> Isn't there a "Direct2D"? That being what the OP needs...

Around the time of DirectX 8, M$ decided to deprecate the 2D aspect and no
longer support DirectDraw (your "Direct2D" interface). It is still
supported, but as you say is likely less than optimal now. As the next
version of windows will be strictly 3D acceleration only (seen the demo of
the new windows UI? I'm moving to linux when XP is dead!) I can't see that
DirectDraw will be accelerated above GDI level at all in future.

ISTR that any DirectDraw surfaces used now will use the old DirectX 5
architecture, and not take advantage of any new on-board acceleration your
graphics card has to offer. However, as a method of gaining a pointer
directly to video memory, it's still invaluable if you're willing to do all
your graphics coding by pushing pixels around and not tending to rely on
Borland's intolerably slow TBitmap.Canvas or TBitmap.Scanlines methods.

D.


.

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