On Sat, 17 Aug 2002, T&C Winquist wrote:
> I'm using ImageMagick version 5.4.9 (I installed PerlMagick WITH
> ImageMagick), ActiveState ActivePerl version 5.6 on Win2k Adv Server running
> IIS 5.0. I'm trying to display an image using PerlMagick directly to a web
> browser (without saving the image to a file first).
>
> The strange thing is that the perl script prints out the header and image
> just fine from a COMMAND PROMPT. However, calling the script from a web
> browser gives me the error "Exception 425: An error has occurred writing to
> file (-)" It WILL let me save the image to a file (from the web), it just
> won't let me 'pipe' the image straight to the browser. It's almost like
> it's a permissions issue. I have given 'Everyone' full rights to the
> directory where I opened the image from and where I'm calling the script
> from, but that didn't help either. Like I said, it works from a command
> prompt, but not from the web. I thought that maybe IIS has a problem
> finding the ImageMagick DLL's. However, the only problem with the script is
> the fact that it doesn't like writing the file to 'gif:-'. Very strange! I
> don't know what to do. Anyone else have this problem using ImageMagick on
> Win2k and had been able to find the fix??
>
>
> Here is my Perl script:
>
> #!c:\perl -w
>
> use Image::Magick;
> use FileHandle;
>
> my $filename = "z:/web/x.gif";
> my $image = Image::Magick->new();
> $image->Read($filename );
> $image->Crop(geometry=>"400x400+500+400");
> autoflush STDOUT 1;
> print ("Content-type: image/gif\r\n\r\n");
>
> $last_error = $image->Write('gif:-');
> if($last_error){print ($last_error);}
>
> undef $image;
>
> 1;
>
> exit;
>
> I've been told by other sources that there is nothing wrong with the script.
>
Does the version of ImageMagic you are using support gif format?
Lot's of current, free software does not due to the Unisys patient
claims on the gif format (actually the LZW compression used as
standard for gifs). Many people are using png instead of gif.
**** [EMAIL PROTECTED] <Carl Jolley>
**** All opinions are my own and not necessarily those of my employer ****
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