Hi All,
I am writing a Virtual Printer driver.Which convert any office document file
to BMP. Now i want to generate JPEG instead of BMP.Can u please tell me is
it possible to generate JPEG format directly without converting from BMP
format. Eventhough I have convert BMP to JPEG file by using Microsoft
provided GDI + . Please guide how can I genertae JPEG direct ly like BMP to
improve its performance. Reply soon.
Thanks & Regards
Parveen
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JPEG compresses in 8 X 8 blocks, so you can turn banding on and handle an 8
row stripe at a time.
That said, may I point out that JPEG doesn’t handle either edges or bitonal
images very well, and most office documents are bitonal and have lots of
edges (think text with all those black-white edges on each letter). JPEG is
designed for pictures, not drawings, charts, or text.
If you want a compresses bitmap, I’d suggest either JBIG or Group 4 fax.
++PLS
-----Original Message-----
From: Parveen Tandon [mailto:xxxxx@dcmtech.co.in]
Sent: Wednesday, December 19, 2001 10:56 PM
To: NT Developers Interest List
Subject: [ntdev] Need Help
Hi All,
I am writing a Virtual Printer driver.Which convert any office document file
to BMP. Now i want to generate JPEG instead of BMP.Can u please tell me is
it possible to generate JPEG format directly without converting from BMP
format. Eventhough I have convert BMP to JPEG file by using Microsoft
provided GDI + . Please guide how can I genertae JPEG direct ly like BMP to
improve its performance. Reply soon.
Thanks & Regards
Parveen
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