Core(library call) Core(library call)

NAME

Core -- The Core widget class

SYNOPSIS

#include <Xm/Xm.h>

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 |
+------------------------------+-------------------------------+----------------+----------------------+--------+
|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
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 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).

Core(library call)