Core(Xm) 6 January 1993 Core(Xm) Name Core - the Core widget class Syntax #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 pro- grammer 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 XtAcceleratorsdynamic CSG XmNancestorSensitiveXmCSensitive Boolean dynamic G XmNbackground XmCBackground Pixel dynamic CSG XmNbackgroundPixmap XmCPixmap Pixmap XmUNSPEC- CSG IFIED_PIXMAP XmNborderColor XmCBorderColor Pixel XtDefaultForegroundCSG XmNborderPixmap XmCPixmap Pixmap XmUNSPEC- CSG IFIED_PIXMAP XmNborderWidth XmCBorderWidth Dimension 1 CSG XmNcolormap XmCColormap Colormap dynamic CG XmNdepth XmCDepth int dynamic CG XmNdestroyCallback XmCCallback XtCallbackListNULL C XmNheight XmCHeight Dimension dynamic CSG XmNinitialResources-XmCInitialResources-Boolean True C Persistent Persistent XmNmappedWhenManagedXmCMappedWhen- Boolean True CSG Managed XmNscreen XmCScreen Screen * dynamic CG XmNsensitive XmCSensitive Boolean True CSG XmNtranslations XmCTranslations XtTranslationsdynamic 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. XmNancestorSensitive Specifies whether the immediate parent of the widget receives input events. Use the function XtSetSensitive to change the argu- ment to preserve data integrity (see XmNsensitive below). For shells, the default is copied from the parent's XmNancestorSensi- tive 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 gen- erated 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 refer- enced 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 deallo- cated should specify a value of False. The default is True, implying an assumption that the widget will not be destroyed dur- ing 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(Xm) and RectObj(Xm).