There are several beginner's bugs in this code:
1) You need to check the result of the open call:
open (TEMP, "template.png") or die "Can't open template: $!";
2) You need to call binmode() on the filehandle, not the result of the
open call:
open (GEN,">>test.png") or die "Can't open out file: $!";
binmode(GEN);
3) You must not place method or function calls in quotes:
print GEN $graph->png;
4) You must close your files and check the result code:
close GEN or die "Can't close GEN file: $!";
close TEMP or die "Can't close TEMP file: $!";
Lincoln
[EMAIL PROTECTED] writes:
>
> Placed At : BOM
>
>
> Durga Prasad@SATYAM
> 11/07/2001 07:00 PM
>
> Hi all,
> Iam generating a graph from data queried from a database.
> I created a template with the background, Axes and units of measurement etc., so
> that i need not do it everytime i want to generate this graph.
> Also, i hope to put it up on the intranet so that everybody can do the same and
> watch the graph.
> Iam using GD.pm for this purpose.
> How ever, when i try to read the template with the code:
> ###Code Follows
> open (TEMP, "template.png");
> $graph=GD::Image->newFromPng(\*TEMP);
> close TEMP;
> $graph->string(gdLargeFont,40,40,"manipulated",$black);
> binmode open(GEN, ">>test.png");
> print GEN ("$graph->png");
> exit;
> ###End Code
> This code generates a file with the name test.png but it is visible on any
> browser.
> Unlikely too, for this file is about 32 bytes while the Template file is
> 3000Bytes in size.
> I guess iam not able to read the image right.
> Can some body guide me in this issue?
> Any pointers will be appreciated.
> Regards,
> Durga Prasad
>
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