void WriteThumbnailToResourceFork(FSRef *ref, int destWidth, int destHeight)
{
OSStatus err;
PicHandle pict;
HFSUniStr255 fork;
SInt16 resf;
err = FSGetResourceForkName(&fork);
if (err == noErr)
{
err = FSCreateResourceFork(ref, fork.length, fork.unicode, 0);
if ((err == noErr) || (err == errFSForkExists))
{
err = FSOpenResourceFile(ref, fork.length, fork.unicode, fsWrPerm, &resf);
if (err == noErr)
{
pict = GetScreenAsPicHandle(IPPU.RenderedScreenWidth, IPPU.RenderedScreenHeight, destWidth, destHeight);
if (pict)
{
AddResource((Handle) pict, 'PICT', 128, "\p");
WriteResource((Handle) pict);
ReleaseResource((Handle) pict);
}
CloseResFile(resf);
}
static OSErr myFSCreateResFile(const char *path, OSType creator, OSType fileType, FSRef *outRef) {
int fd = open(path, O_CREAT | O_WRONLY, 0666);
if (fd == -1) {
perror("opening destination:");
return bdNamErr;
}
close(fd);
FSRef ref;
OSErr err = FSPathMakeRef((const UInt8*)path, &ref, NULL);
if (err != noErr)
return err;
HFSUniStr255 rname;
FSGetResourceForkName(&rname);
err = FSCreateResourceFork(&ref, rname.length, rname.unicode, 0);
if (err != noErr)
return err;
FInfo finfo;
err = FSGetFInfo(&ref, &finfo);
if (err != noErr)
return err;
finfo.fdCreator = creator;
finfo.fdType = fileType;
err = FSSetFInfo(&ref, &finfo);
if (err != noErr)
return err;
*outRef = ref;
return noErr;
}
