Core(library call) UNIX System V Core(library call)
NAME
Core - The Core widget class
SYNOPSIS
#include <Xm/Xm.h>
VERSION
This page documents Motif 2.1.
DESCRIPTION
Core is the Xt Intrinsic base class for windowed widgets.
The Object and RectObj classes provide support for
windowless widgets.
Classes
All widgets are built from Core.
The class pointer is widgetClass.
The class name is Core.
New Resources
The following table defines a set of widget resources used
by the programmer to specify data. The programmer can also
set the resource values for the inherited classes to set
attributes for this widget. To reference a resource by name
or by class in a .Xdefaults file, remove the XmN or XmC
prefix and use the remaining letters. To specify one of the
defined values for a resource in a .Xdefaults file, remove
the Xm prefix and use the remaining letters (in either
lowercase or uppercase, but include any underscores between
words). The codes in the access column indicate if the
given resource can be set at creation time (C), set by using
XtSetValues (S), retrieved by using XtGetValues (G), or is
not applicable (N/A).
Core Resource Set
Name Class Type Default Access
XmNaccelerators XmCAccelerators XtAccelerators dynamic CSG
XmNancestorSensitive XmCSensitive Boolean dynamic G
XmNbackground XmCBackground Pixel dynamic CSG
XmNbackgroundPixmap XmCPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNborderColor XmCBorderColor Pixel XtDefaultForeground CSG
XmNborderPixmap XmCPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNborderWidth XmCBorderWidth Dimension 1 CSG
XmNcolormap XmCColormap Colormap dynamic CG
XmNdepth XmCDepth int dynamic CG
XmNdestroyCallback XmCCallback XtCallbackList NULL C
XmNheight XmCHeight Dimension dynamic CSG
XmNinitialResourcesPersistent XmCInitialResourcesPersistent Boolean True C
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Core(library call) UNIX System V Core(library call)
XmNmappedWhenManaged XmCMappedWhenManaged Boolean True CSG
XmNscreen XmCScreen Screen * dynamic CG
XmNsensitive XmCSensitive Boolean True CSG
XmNtranslations XmCTranslations XtTranslations dynamic CSG
XmNwidth XmCWidth Dimension dynamic CSG
XmNx XmCPosition Position 0 CSG
XmNy XmCPosition Position 0 CSG
XmNaccelerators
Specifies a translation table that is bound with
its actions in the context of a particular widget.
The accelerator table can then be installed on
some destination widget. Note that the default
accelerators for any widget will always be
installed, no matter whether this resource is
specified or not.
XmNancestorSensitive
Specifies whether the immediate parent of the
widget receives input events. Use the function
XtSetSensitive to change the argument to preserve
data integrity (see XmNsensitive). For shells,
the default is copied from the parent's
XmNancestorSensitive resource if there is a
parent; otherwise, it is True. For other widgets,
the default is the bitwise AND of the parent's
XmNsensitive and XmNancestorSensitive resources.
XmNbackground
Specifies the background color for the widget.
XmNbackgroundPixmap
Specifies a pixmap for tiling the background. The
first tile is placed at the upper left corner of
the widget's window.
XmNborderColor
Specifies the color of the border in a pixel
value.
XmNborderPixmap
Specifies a pixmap to be used for tiling the
border. The first tile is placed at the upper left
corner of the border.
XmNborderWidth
Specifies the width of the border that surrounds
the widget's window on all four sides. The width
is specified in pixels. A width of 0 (zero) means
that no border shows. Note that you should use
resources like XmNshadowThickness and
XmNhighlightThickness instead of XmNborderWidth to
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Core(library call) UNIX System V Core(library call)
specify border widths.
XmNcolormap
Specifies the colormap that is used for
conversions to the type Pixel for this widget
instance. When this resource is changed,
previously generated pixel values are not
affected, but newly generated values are in the
new colormap. For shells without parents, the
default is the default colormap of the widget's
screen. Otherwise, the default is copied from the
parent.
XmNdepth Specifies the number of bits that can be used for
each pixel in the widget's window. Applications
should not change or set the value of this
resource as it is set by the Xt Intrinsics when
the widget is created. For shells without
parents, the default is the default depth of the
widget's screen. Otherwise, the default is copied
from the parent.
XmNdestroyCallback
Specifies a list of callbacks that is called when
the widget is destroyed.
XmNheight Specifies the inside height (excluding the border)
of the widget's window.
XmNinitialResourcesPersistent
Specifies whether or not resources are reference
counted. If the value is True when the widget is
created, the resources referenced by the widget
are not reference counted, regardless of how the
resource type converter is registered. An
application that expects to destroy the widget and
wants to have resources deallocated should specify
a value of False. The default is True, implying
an assumption that the widget will not be
destroyed during the life of the application.
XmNmappedWhenManaged
If this resource is set to True, it maps the
widget (makes it visible) as soon as it is both
realized and managed. If this resource is set to
False, the client is responsible for mapping and
unmapping the widget. If the value is changed from
True to False after the widget has been realized
and managed, the widget is unmapped.
XmNscreen Specifies the screen on which a widget instance
resides. It is read only. When the Toolkit is
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Core(library call) UNIX System V Core(library call)
initialized, the top-level widget obtains its
default value from the default screen of the
display. Otherwise, the default is copied from
the parent.
XmNsensitive
Determines whether a widget receives input events.
If a widget is sensitive, the Xt Intrinsics' Event
Manager dispatches to the widget all keyboard,
mouse button, motion, window enter/leave, and
focus events. Insensitive widgets do not receive
these events. Use the function XtSetSensitive to
change the sensitivity argument. Using
XtSetSensitive ensures that if a parent widget has
XmNsensitive set to False, the ancestor-sensitive
flag of all its children is appropriately set.
XmNtranslations
Points to a translations list. A translations list
is a list of events and actions that are to be
performed when the events occur. Note that the
default translations for any widget will always be
installed, no matter whether this resource is
specified or not.
XmNwidth Specifies the inside width (excluding the border)
of the widget's window.
XmNx Specifies the x-coordinate of the upper left
outside corner of the widget's window. The value
is relative to the upper left inside corner of the
parent window.
XmNy Specifies the y-coordinate of the upper left
outside corner of the widget's window. The value
is relative to the upper left inside corner of the
parent window.
Translations
There are no translations for Core.
RELATED
Object(3) and RectObj(3).
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