constant problem with GD's newFromGif


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constant problem with GD's newFromGif

by maard (Pilgrim)

on Sep 01, 2005 at 10:52 UTC ( [id://488346]=perlquestion: print w/replies, xml )

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maard has asked for the wisdom of the Perl Monks concerning the following question:

This code:

 open F, TMP_GIF_FNAME;
 my $im = GD::Image->newFromGif( F );
 close F;
[download]

dies with this message: Can't use an undefined value as a symbol reference at /usr/local/lib/perl5/site_perl/5.8.6/i386-freebsd/GD/Image.pm line 193.

In GD/Image.pm:

sub newFromGif {
    croak("Usage: newFromGif(class,filehandle,[truecolor])") unless @_
+>=2;
    my($class) = shift;
    my($f)     = shift;
    my $fh = $class->_make_filehandle($f);
    binmode($fh);                  # <-- line 193
    $class->_newFromGif($fh,@_);
}
[download]

Versions:
GD: 2.27
gd: 2.0.33

What am I doing wrong?

Comment on constant problem with GD's newFromGif Select or Download Code

Replies are listed 'Best First'.
Re: constant problem with GD's newFromGif by Roger (Parson) on Sep 01, 2005 at 11:01 UTC
Try `my $im = GD::Image->newFromGif( \*F );` Hang on, did you check whether your open succeeded or not? Do this instead: `open F, TMP_GIF_FNAME or die "Can not open image: $!";` [download]	[reply] [d/l] [select]
Re^2: constant problem with GD's newFromGif by maard (Pilgrim) on Sep 01, 2005 at 11:52 UTC
open F, TMP_GIF_FNAME or die "Can not open image: $!"; You're right, that was the reason (I overlooked it, because the code became too heavy instead of several lines, written several days ago, because I coudn't create image from GIF data, only from file).	[reply]

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