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October 2005
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2005.10.25 06:53 "Re: How can I insert IFD at custom index?", by Eugene Shebeko
> > I need to insert IFD at a custom index. > > > > I see only function that insert IFD at the end of file. > > Maybe it's possible some hack solution do do this? > > You can write IFD either at the end of file (using usual method) or at > the any position using the TIFFCheckpointDirectory() function. The IFD > structure will be dumped out immediately whenever the > TIFFCheckpointDirectory() will be called. See the attached sample code, > it will create the TIFF file with the IFD in the middle of image (you > can confirm that with binary viewer, just search for the DateTime tag > contents). Sorry, it my bad English ;). I really don't care where in the file my IFD will be located. But i need to insert IFD at custom index. For example I have file with 6 IFD, and I need to insert new IFD at the index 3. old file 0 1 2 3 <--- need to insert at this index 4 5 6 updated file 0 (0) 1 (1) 2 (2) 3 (new directory) 4 (3) 5 (4) 6 (5) 7 (6)