Actually, yes, I have read that as well as many other articles on the subject. Unfortunately it has little to do with the price of tea in china. This has only to do with getting the pixel data from an HDC (desktop is just a good starting point, in the end its a remote HDC that will be processed).
But, I did find that (finally) the Lazarus team has surfaced TBitmap.RawImage.Data (YEAH!) and this gives me direct access to the pixel data held within the HDC once I do a BitBlt to the surface. So, alls good now, just access that as though I were accessing Scanline.
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