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Tk800.024
/ pod/pTk/SetClass.pod
Security Advisories (4)
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-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_SetClass, Tk_Class - set or retrieve a window's class

SYNOPSIS

#include <tk.h>

Tk_SetClass(tkwin, class)

Tk_Uid Tk_Class(tkwin)

ARGUMENTS

Tk_Window tkwin (in)

Token for window.

char *class (in)

New class name for window.

DESCRIPTION

Tk_SetClass is called to associate a class with a particular window. The class string identifies the type of the window; all windows with the same general class of behavior (button, menu, etc.) should have the same class. By convention all class names start with a capital letter, and there exists a Tcl command with the same name as each class (except all in lower-case) which can be used to create and manipulate windows of that class. A window's class string is initialized to NULL when the window is created.

For main windows, Tk automatically propagates the name and class to the WM_CLASS property used by window managers. This happens either when a main window is actually created (e.g. in Tk_MakeWindowExist), or when Tk_SetClass is called, whichever occurs later. If a main window has not been assigned a class then Tk will not set the WM_CLASS property for the window.

Tk_Class is a macro that returns the current value of tkwin's class. The value is returned as a Tk_Uid, which may be used just like a string pointer but also has the properties of a unique identifier (see the the documentation for Tk_GetUid for details). If tkwin has not yet been given a class, then Tk_Class will return NULL.

KEYWORDS

class, unique identifier, window, window manager