[Lazarus] TBitmap.Canvas.Pixel

Marc Weustink marc.weustink at cuperus.nl
Thu May 7 17:32:20 CEST 2009

Felipe Monteiro de Carvalho wrote:
> Hello,
> In the past it was said that setting each pixel individually with
> TBitmap.Canvas.Pixel (for an offscreen bitmap) is slow, because the
> image data is stored by the windowing library, and you need a lot of
> calls to this library to set the pixels.
> After the TBitmap remodeling where is the image data stored? It seams
> to me that it is stored locally now, althought the code is quite
> complex, so I may be wrong. In this case, there would be no reason it
> being so much slower then TLazIntfImage, but it still is in my tests
> with Carbon! Any ideas what is the cause of slowness now? 

Maybe it is still not stored locally ? (I need to look at the code my 
self, I cant remember)


More information about the Lazarus mailing list