Core — The Core widget class "Core" "widget
class" "Core"
#include <Xm/Xm.h>
Core is the Xt Intrinsic base class for windowed widgets. The
Object and
RectObj classes provide support for windowless widgets.
All widgets are built from
Core.
The class pointer is
widgetClass.
The class name is
Core.
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.
There are no translations for Core.
Object(3) and
RectObj(3).