Hi,

I am creating a screen capture gui using perl/TK. The script will capture a screen using imageMagick. I then display the captured image in my main window. I would like to delete the image and remove it from the display. I tried using destroy(), however I get the following error when I attempt to delete: 

 Tk::Error: Can't call method "destroy" without a package or object re
+ference at ./Capture4.pl line 80.
 Tk callback for .frame.pane.frame.frame.button
 Tk::__ANON__ at /usr/lib/perl5/Tk.pm line 250
 Tk::Button::butUp at /usr/lib/perl5/Tk/Button.pm line 175
 <ButtonRelease-1>
 (command bound to event)

[download]

I would like the window to redraw without the image. Perhaps there is a better way to do this? Any help would be appreciated. Oh! here is the code to the script 

#!/usr/bin/perl -w

use strict;
use Tk;
use Tk::WinPhoto;
use Tk::JPEG;
use Tk::Pane;

my $mw = MainWindow->new();
$mw->minsize(qw(670 510));
$mw->configure(-background=>'gray');
$mw->title("Screen Capture GUI"); 

my $img_count = 0;

my $but_capture = $mw->Button( -text => "Capture Screen", -command => 
+sub { \&Grab() } );
$but_capture -> place(-x=>10,-y=>5, -width=>650);

my $exit = $mw->Button( -text => "Exit", -command => sub { exit } );
$exit -> place(-x=>560,-y=>460, -width=>100);

my $frame2_1 = $mw->Scrolled(qw/Pane -scrollbars ose/);
$frame2_1 -> place(-x=>10,-y=>50, -width=>650, -height=>400 );



MainLoop();


sub Grab(){

######################################################################
+####
#Creating file handle and taking picture
my $tim = time();
my $fname = "/tmp/".$tim.".jpg";
print "$fname\n";
system("import -frame $fname");

#resize to display in window
my $fname2=$fname."sm.jpg";
system("convert -size 350X350 $fname -resize 350x350 $fname2");

######################################################################
+####
$img_count++;
my $mini;

#Frame packed in scrolling Pane
$mini = $frame2_1->Frame(-background=>'#3300ff')->pack(-anchor => 'w',
+ -fill =>"x");


#create new frame to hold new image contents

my $img_label = $mini->Label(-text=>"Image $img_count");
$img_label ->pack();

my $pic_location = $mini->Label(-text=>"Pathname:");
$pic_location ->pack(); 

my $pic_fname = $mini->Entry(-width=>50,-textvariable=>"$fname");
$pic_fname ->pack(); 

my $pic = $mini->Photo( -file =>"$fname2");
my $f =$mini->Label(-image => $pic);
$f ->pack();

my $but_delete = $mini ->Button( -text => "Delete Image", -command => 
+sub { \&Delete($mini) } );
$but_delete -> pack();

my $blank1 = $frame2_1->Label(-text=>"");
$blank1 ->pack();
}

sub Delete(){
my $fn =@_;
$fn ->destroy;
}

[download]

In reply to Issue destroying image using perl/TK by nikwasi

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