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Tk-804.036
River stage three • 165 direct dependents • 175 total dependents
/ Tk::WinPhoto
Security Advisories (3)
CVE-2007-4769 (2008-01-09)

The regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (backend crash) via an out-of-bounds backref number.

CVE-2018-25032 (2022-03-25)

zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

CVE-2011-3045 (2012-03-22)

Integer signedness error in the png_inflate function in pngrutil.c in libpng before 1.4.10beta01, as used in Google Chrome before 17.0.963.83 and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PNG file, a different vulnerability than CVE-2011-3026.

NAME

Tk::WinPhoto - Load a Photo image from a window

SYNOPSIS

use Tk;
use Tk::WinPhoto;

my $image = $mw->Photo(-format => 'Window', -data => oct($mw->id));
$image->write($path_name, -format => 'BMP|PPM|XPM');

DESCRIPTION

This is an extension for Tk800.* which will load a Photo image from a snapshot of an X window specified by the -data option.

The window must exist and be visible. Because the code allows you to capture windows not owned by Tk it does not attempt to enforce this. If you are capturing one of Tk's windows then use $w->update.

If window is mapped, but obscured by other windows then what is captured is the rectangle the window would occupy. This can be considered a feature. For Tk-owned windows $w->raise can used to bring window forward.

Once the Photo is loaded it can be saved using $image->write(-format => ...) using any of formats which support writing.

AUTHOR

Nick Ing-Simmons <nick@ni-s.u-net.com>