JPEG to PICT

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Rick Tschudin - 29 Aug 2003 16:48 GMT

I have the code written ...to import PICT files, to alter the images and to
save them as PICT resources. Now I want to know how to open a JPEG file and
turn it into a PICT file.

Rick T.

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David Phillip Oster - 29 Aug 2003 17:38 GMT

> I have the code written ...to import PICT files, to alter the images and to
> save them as PICT resources. Now I want to know how to open a JPEG file and
> turn it into a PICT file.

PicHandle ph = NULL;

ImageFileToPicHandle(&fs, &ph);, where ImageFileToPicHandle is as below.

Add the Quicktime library to your project.

#include <ImageCompression.h>

OSStatus ImageFileToPicHandle(const FSSpec *fsp, PicHandle *outPHp){
GraphicsImportComponent gi = NULL;
OSStatus stat = noErr;

if(noErr == stat){ stat = GetGraphicsImporterForFile(fsp, &gi); }
if(noErr == stat){ stat = GraphicsImportGetAsPicture(gi, outPHp); }
if(NULL != gi){ CloseComponent(gi); }
return stat;
}

To save it as a PICT _File_, use:
GraphicsImportExportImageFile();

It uses the output filetype to figure out how to re-encode the image.

The symbolic constants like kQTFileTypeJPEG are in
#include <QuicktimeComponents.h>

This will work with PNGs, GIFs, PICTs, JPEGs, BMPs, TIFFs: any of the
long list of file types that QuicktimeGraphicImporters handle.

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Mac Forum / Programming / CodeWarrior / August 2003

JPEG to PICT