... for visualizing what i meant with having the imagedata in a dbmopned hash, I have rewritten the example.

First a script for creating the hash...
#!/usr/bin/perl

use GD;
use Tk;
use Tk::JPEG;
use MIME::Base64;

dbmopen %myhash, "myhash", 0666;
my $im = GD::Image->new('image.jpg');
my $img = encode_base64($im->jpeg());
$myhash{image} = $img;
dbmclose %myhash;

[download]


... and the a script for showing the image - using the imagedata in the hash: 

#!/usr/bin/perl

use Tk;
use Tk::JPEG;

dbmopen %myhash, "myhash", 0666;
my $main = MainWindow->new();
my $image = $main->Photo("button", -data => $myhash{image}, -format =>
+ 'jpeg');
my $label= $main->Label(-image => "button");
$label->grid(-in => $main);
dbmclose %myhash;

MainLoop;

[download]


One of the great things is the compression:
My image.jpg is 14.9 Kb.
When compressed it is 13.4 Kb.
When compressing the hash containing the imagedata - it's only 7.7 Kb.

That's cool.

Søren Schimkat

In reply to Re: Re: Re: TK::Photo -file -data by schimkat
in thread TK::Photo -file -data by schimkat

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