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Robert G. Hoover
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 Posted: Wed Aug 25, 2004 1:19 pm Post subject: TJPEGImage, Assign, and CompressionQuality |
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Hello All,
If I create a TJPEGImage and Assign it data from a TBitmap, does the
CompressionQuality affect the Assign? Or, do I have to call Compress
afterward?
// create working image
TJPEGImage *MyJPG= new TJPEGImage();
// set compression level
MyJPG->CompressionQuality = CompressionTrackBar->Position;
// copy image data
MyJPG->Assign(MyBMP);
// compress data - is this neceassary?
MyJPG->Compress();
Thanks,
Rob
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Carlos
Guest
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| Posted: Fri Sep 03, 2004 10:06 pm Post subject: Re: TJPEGImage, Assign, and CompressionQuality |
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Hi,
as read in the vcl help it seems that you must call Compress() when
streaming but there is no need to do so when saving to file.
Regards,
Carlos.
Robert G. Hoover wrote:
| Quote: | Hello All,
If I create a TJPEGImage and Assign it data from a TBitmap, does the
CompressionQuality affect the Assign? Or, do I have to call Compress
afterward?
// create working image
TJPEGImage *MyJPG= new TJPEGImage();
// set compression level
MyJPG->CompressionQuality = CompressionTrackBar->Position;
// copy image data
MyJPG->Assign(MyBMP);
// compress data - is this neceassary?
MyJPG->Compress();
Thanks,
Rob
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