hello
the following code will add the pictures found in the current directory to a ListBox , then by clicking on any item in the ListBox it will display that picture to a WebBrowser control in a Win32::GUI::AxWindow
the program works okay when we click on any item the first time, but it will not display any other picture in the second click or more.
i think the problem is in :
$OLEControl = $Control->GetOLE();
$OLEControl->Navigate("about:Blank"); # Clear control
which are in the ListBox_Click event
if we comment those lines and add it to a button_click event then every time we need to display a picture we must click that button first then click on an item in the ListBox.
whats the difference between adding it to a click event of ListBox or a Button click?? can some one show me the bugs in this code.
using webbrowsers are especially usefull in displaying correctly the animated Gifs.
thanks
use strict;
use warnings;
use Cwd;
use Win32::GUI qw(WS_VSCROLL WS_VISIBLE);
use Win32::OLE;
use Win32::GUI::AxWindow;
my $dir = getcwd;
our $OLEControl;
# main Window
my $Window = new Win32::GUI::Window (
    -title    => "Win32::GUI::AxWindow and Win32::OLE",
    -pos     => [0, 0],
    -size    => [620, 470],
    -name     => "Window",
) or die "new Window";
# Create AxWindow
our $Control = new Win32::GUI::AxWindow  (
               -parent  => $Window,
               -name    => "Control",
               -pos     => [150, 0],
               -size    => [400, 400],
               -control => "Shell.Explorer.2",
 ) or die "new Control";

my $PicList = $Window->AddListbox(
 -name   => "PicList",
 -top    => 0,
 -left   => 0,
 -width  => 125,
 -height => 110,
 -addstyle  => WS_VISIBLE | 3 | WS_VSCROLL,

);
#the button are for test only
$Window->AddButton(
-name => "display",
-align => "left",
-text => "Display",
-left => 0,
-top => 200,
-width => 100,
-height => 50,
);

opendir DH, $dir or die "Cannot open $dir: $!";
my @files = grep { ! -d } readdir DH;
closedir DH;
#choose only jpg or gif files
my @picFiles = grep /.+\.jpg|gif/,@files;
# work with @files
foreach my $item (@picFiles)
{ 
$PicList->Add($item);
}
#the following button just for test only
sub display_Click
{ $OLEControl = $Control->GetOLE();
 $OLEControl->Navigate("about:Blank");  # Clear control
}

#Show application window
$Window->Show();
#Enter event loop
Win32::GUI::Dialog();

#Hide windows on exit
$Window->Hide();
undef $Window;
exit(0);

sub PicList_Click {
   
    my $ListSelection = $PicList->SelectedItem();
    my $selectedPic = $PicList->GetString($ListSelection);
    my $picture = $dir . '/' . $selectedPic;

   # Get Ole object
   $OLEControl = $Control->GetOLE();
   $OLEControl->Navigate("about:Blank");  # Clear control

my $pic = "<html><body><img src='$picture' /></body></html>";
$OLEControl->{Document}->write($pic); # Write Html
return 0;

}

# Main window event handler

sub Window_Terminate {

  # Release all before destroy window
  undef $OLEControl;
  $Control->Release();

  return -1;
}
sub Window_Resize {

  if (defined $Window) {
    my($width, $height) = ($Window->GetClientRect)[2..3];
    $Control->Resize ($width, $height);
  }
}

__END__

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In reply to picture browser using WebBrowser by glassy

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