/ 
Tk804.025_beta2
/ Tk::WinPhoto
Security Advisories (5)
CVE-2006-4484 (2008-10-01)

Buffer overflow in the LWZReadByte_ function in the GD extension in allows remote attackers to have an unknown impact via a GIF file with input_code_size greater than MAX_LWZ_BITS, which triggers an overflow when initializing the table array.

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-2003-0107 (2003-03-07)

Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or when long inputs are truncated using vsnprintf, allows attackers to cause a denial of service or possibly execute arbitrary code.

CVE-2007-4772 (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 context-dependent attackers to cause a denial of service (infinite loop) via a crafted regular expression.

CVE-2007-6067 (2008-01-09)

Algorithmic complexity vulnerability in 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 (memory consumption) via a crafted "complex" regular expression with doubly-nested states.

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>