xmobjectatpoint(3) [hpux man page]

XmObjectAtPoint(library call)											     XmObjectAtPoint(library call)

NAME

       XmObjectAtPoint -- A toolkit function that determines which child intersects or comes closest to a specified point

SYNOPSIS

       #include <Xm/Xm.h>
       Widget XmObjectAtPoint(
       Widget widget,
       Position x,
       Position y);

DESCRIPTION

       XmObjectAtPoint	searches  the  child list of the specified manager widget and returns the child most closely associated with the specified
       x,y coordinate pair.

       For the typical Motif manager widget, XmObjectAtPoint uses the following rules to determine the returned object:

	  o  If one child intersects x,y, XmObjectAtPoint returns the widget ID of that child.

	  o  If more than one child intersects x,y, XmObjectAtPoint returns the widget ID of the visible child.

	  o  If no child intersects x,y, XmObjectAtPoint returns NULL.

       The preceding rules are only general. In fact, each manager widget is free to define "most closely associated" as it desires.  For example,
       if no child intersects x,y, a manager might return the child closest to x,y.

       widget	 Specifies a manager widget.

       x	 Specifies  the x-coordinate about which you are seeking child information. The x-coordinate must be specified in pixels, relative
		 to the left side of manager.

       y	 Specifies the y-coordinate about which you are seeking child information. The y-coordinate must be specified in pixels,  relative
		 to the top side of manager.

RETURN

       Returns the child of manager most closely associated with x,y.  If none of its children are sufficiently associated with x,y, returns NULL.

RELATED

       XmManager(3).

														     XmObjectAtPoint(library call)

XtNameToWidget(3)						   XT FUNCTIONS 						 XtNameToWidget(3)

NAME

       XtNameToWidget, XtWindowToWidget - translating strings to widgets or widgets to windows

SYNTAX

       Widget XtNameToWidget(Widget reference, String names);

       Widget XtWindowToWidget(Display *display, Window window);

ARGUMENTS

       display	 Specifies the display on which the window is defined.

       names	 Specifies the fully qualified name of the desired widget.

       reference Specifies the widget from which the search is to start.

       window	 Specify the window for which you want the widget.

DESCRIPTION

       The XtNameToWidget function looks for a widget whose name is the first component in the specified names and that is a pop-up child of ref-
       erence (or a normal child if reference is a subclass of compositeWidgetClass).  It then uses that widget as the new reference and repeats
       the search after deleting the first component from the specified names.	If it cannot find the specified widget, XtNameToWidget returns
       NULL.

       Note that the names argument contains the name of a widget with respect to the specified reference widget and can contain more than one
       widget name (separated by periods) for widgets that are not direct children of the specified reference widget.

       If more than one child of the reference widget matches the name, XtNameToWidget can return any of the children.	The Intrinsics do not
       require that all children of a widget have unique names.  If the specified names contain more than one component and if more than one child
       matches the first component, XtNameToWidget can return NULL if the single branch that it follows does not contain the named widget.  That
       is, XtNameToWidget does not back up and follow other matching branches of the widget tree.

       The XtWindowToWidget function translates the specified window and display pointer into the appropriate widget instance.

SEE ALSO

       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11							    libXt 1.1.4 						 XtNameToWidget(3)