I'm not sure what you mean by a "special reference"?
I should have said "blessed reference". Some new class, only used by Tk internally, which can be used to distinguish normal string data and strictly binary data.
Out of interest, how big are the sources for Perl/Tk?
As a *.tar.gz it's 6MB. *.tar.bz2 would safe 1MB.

In reply to Re^8: Tk:Photo -data with binary data? by eserte
in thread Tk:Photo -data with binary data? by BrowserUk

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