xgetclasshint(3x11) [ultrix man page]

XSetClassHint(3X11)													       XSetClassHint(3X11)

Name
       XSetClassHint, XGetClassHint - set or get class hint

Syntax
       XSetClassHint(display, w, class_hints)
	     Display *display;
	     Window w;
	     XClassHint *class_hints;

       Status XGetClassHint(display, w, class_hints_return)
	     Display *display;
	     Window w;
	     XClassHint *class_hints_return;

Arguments
       class_hints
		 Specifies a pointer to a structure that is to be used.

       class_hints_return
		 Returns the structure.

       display	 Specifies the connection to the X server.

       w	 Specifies the window.

Description
       The function sets the class hint for the specified window.

       can generate and errors.

       The function returns the class of the specified window.	To free res_name and res_class when finished with the strings, use

       can generate a error.

Property
       WM_CLASS

Diagnostics
       The server failed to allocate the requested resource or server memory.

       A value for a Window argument does not name a defined Window.

See Also
       XSetCommand(3X11),  XSetIconName(3X11),	XSetIconSizeHints(3X11), XSetNormalHints(3X11), XSetSizeHints(3X11), XSetStandardProperties(3X11),
       XSetTransientForHint(3X11), XSetWMHints(3X11), XSetZoomHints(3X11), XStoreName(3X11)
       Guide to the Xlib Library

															       XSetClassHint(3X11)

XAllocClassHint(3X11)						  XLIB FUNCTIONS					     XAllocClassHint(3X11)

NAME

       XAllocClassHint, XSetClassHint, XGetClassHint, XClassHint - allocate class hints structure and set or read a window's WM_CLASS property

SYNTAX

       XClassHint *XAllocClassHint()

       XSetClassHint(display, w, class_hints)
	     Display *display;
	     Window w;
	     XClassHint *class_hints;

       Status XGetClassHint(display, w, class_hints_return)
	     Display *display;
	     Window w;
	     XClassHint *class_hints_return;

ARGUMENTS

       display	 Specifies the connection to the X server.

       class_hints
		 Specifies the XClassHint structure that is to be used.

       class_hints_return
		 Returns the XClassHint structure.

       w	 Specifies the window.

DESCRIPTION

       The XAllocClassHint function allocates and returns a pointer to a XClassHint structure.	Note that the pointer fields in the XClassHint
       structure are initially set to NULL.  If insufficient memory is available, XAllocClassHint returns NULL.  To free the memory allocated to
       this structure, use XFree.

       The XSetClassHint function sets the class hint for the specified window.  If the strings are not in the Host Portable Character Encoding,
       the result is implementation-dependent.

       XSetClassHint can generate BadAlloc and BadWindow errors.

       The XGetClassHint function returns the class hint of the specified window to the members of the supplied structure.  If the data returned
       by the server is in the Latin Portable Character Encoding, then the returned strings are in the Host Portable Character Encoding.  Other-
       wise, the result is implementation-dependent.  It returns a nonzero status on success; otherwise, it returns a zero status.  To free
       res_name and res_class when finished with the strings, use XFree on each individually.

       XGetClassHint can generate a BadWindow error.

PROPERTIES

       WM_CLASS  Set by application programs to allow window and session managers to obtain the application's resources from the resource data-
		 base.

STRUCTURES

       The XClassHint structure contains:

       typedef struct {
	    char *res_name;
	    char *res_class;
       } XClassHint;

       The res_name member contains the application name, and the res_class member contains the application class.  Note that the name set in this
       property may differ from the name set as WM_NAME.  That is, WM_NAME specifies what should be displayed in the title bar and, therefore, can
       contain temporal information (for example, the name of a file currently in an editor's buffer).	On the other hand, the name specified as
       part of WM_CLASS is the formal name of the application that should be used when retrieving the application's resources from the resource
       database.

DIAGNOSTICS

       BadAlloc  The server failed to allocate the requested resource or server memory.

       BadWindow A value for a Window argument does not name a defined Window.

SEE ALSO

       XAllocIconSize(3X11), XAllocSizeHints(3X11), XAllocWMHints(3X11), XFree(3X11), XSetCommand(3X11), XSetTransientForHint(3X11), XSetTextProp-
       erty(3X11), XSetWMClientMachine(3X11), XSetWMColormapWindows(3X11), XSetWMIconName(3X11), XSetWMName(3X11), XSetWMProperties(3X11), XSetWM-
       Protocols(3X11), XStringListToTextProperty(3X11)
       Xlib - C Language X Interface

X Version 11							    Release 6.6 					     XAllocClassHint(3X11)