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I have successfully called EXIFTOOL from a batch file, but now I need to call it from a C++ MFC dialog (which needs to pass the results to another program). I have used "CreateProcess" to call EXIFTOOL, which appears to have worked, but I can't figure out how to retrieve the metadata output I requested in the comandline. I know it's possible to do it with Perl and using C++ in Cygwin, but I can't find any info for calling it in native Windows C++. Any tips would be appreciated.

DocDJ
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The author of exiftool has a C++ Interface for ExifTool. This uses exiftool's -stay_open option which keeps exiftool running in the background.

Exiftool is not a program you want to call once for every file. The startup time is it's biggest performance hit and calling it once/file can significantly increase processing time. See Exiftool Common Mistake #3.

StarGeek
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  • My problem is that (as stated) I am NOT running on Cygwin. My application is using MFC dialogs in native windows. EXIFTOOL runs fine from Windows batch. The stay_open option will be useful once I find out how to capture the EXIFTOOL output. – DocDJ Jan 31 '23 at 11:04