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Core(3X)
OSF/Motif
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
XmNaccelerators
Class: XmCAccelerators
Default: dynamic
Type: XtAccelerators
Access: CSG
XmNancestorSensitive
Class: XmCSensitive
Default: dynamic
Type: Boolean
Access: G
XmNbackground
Class: XmCBackground
Default: dynamic
Type: Pixel
Access: CSG
XmNbackgroundPixmap
Class: XmCPixmap
Default: XmUNSPECIFIED_PIXMAP
Type: Pixmap
Access: CSG
XmNborderColor
Class: XmCBorderColor
Default: XtDefaultForeground
Type: Pixel
Access: CSG
XmNborderPixmap
Class: XmCPixmap
Default: XmUNSPECIFIED_PIXMAP
Type: Pixmap
Access: CSG
XmNborderWidth
Class: XmCBorderWidth
Default: 1
Type: Dimension
Access: CSG
XmNcolormap
Class: XmCColormap
Default: dynamic
Type: Colormap
Access: CG
XmNdepth
Class: XmCDepth
Default: dynamic
Type: int
Access: CG
XmNdestroyCallback
Class: XmCCallback
Default: NULL
Type: XtCallbackList
Access: C
XmNheight
Class: XmCHeight
Default: dynamic
Type: Dimension
Access: CSG
XmNinitialResourcesPersistent
Class: XmCInitialResourcesPersistent
Default: True
Type: Boolean
Access: C
XmNmappedWhenManaged
Class: XmCMappedWhenManaged
Default: True
Type: Boolean
Access: CSG
XmNscreen
Class: XmCScreen
Default: dynamic
Type: Screen *
Access: CG
XmNsensitive
Class: XmCSensitive
Default: True
Type: Boolean
Access: CSG
XmNtranslations
Class: XmCTranslations
Default: dynamic
Type: XtTranslations
Access: CSG
XmNwidth
Class: XmCWidth
Default: dynamic
Type: Dimension
Access: CSG
XmNx
Class: XmCPosition
Default: 0
Type: Position
Access: CSG
XmNy
Class: XmCPosition
Default: 0
Type: Position
Access: 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.
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 below). 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-hand 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-hand 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 zero
means that no border shows.
XmNcolormap
Specifies the colormap that is used for conversions to the type Pixel
for this widget instance. When 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 set to True it maps the widget (makes it visible) as soon as it is
both realized and managed. If 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.
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.
SEE ALSO
Object(3X), RectObj(3X)
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