How to get 24 bit RGB data ?

Subject: How to get 24 bit RGB data ?

Date: Thu, 13 Oct 2005 08:01:56 +0800 (CST)

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hi, everyone!

I have met a problem when I get 24 bit RGB data. In the hp SamplePM, I set the kPMRequestedPixelFormatKey as kPMRGB_24, the kPMRequiredBandHeightKey as 48*5, the kPMConverterResHorizontalKey as 600, the kPMConverterResVerticalKey as 600 in converterSetupTicket. I printed document in A4 paper.

When debugging, I get the print data from the method of TEnginePCL::PrintBand(). In the bandBuffer data, the first line data is 24 bit RGB and it is correct. But from the second line to the last line, the data is 32 bit (kPMXRGB_32 pixel format) RGB data.

Why the second line data is 32 bit RGB data ??

And does the second line data begin from "bandBuffer + bandWidth * 4" ? ( bandWidth = (pageWidth * 600) / 72)

Thanks a lot!

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Re: How to get 24 bit RGB data ?
- From: David Gelphman <email@hidden>