From PerlXS http://perldoc.perl.org/perlxstut.html Look for "More about XSUB arguments" - shows how to pass by reference, you should be able to apply this is Inline C since it utilizes XS.

In reply to Re: Passing GD::Image object to Inline C by Anonymous Monk
in thread Passing GD::Image object to Inline C by josiah47

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