XmGadget(3X)
XmGadget --The Gadget widget class
As shipped in IRIX 6.5.19. Unchanged since IRIX 6.5.
NAME XmGadget --The Gadget widget class SYNOPSIS #include <Xm/Xm.h> VERSION This page documents version 1.2 of the Motif library. DESCRIPTION Gadget is a widget class used as a supporting superclass for other gadget classes. It handles shadow-border drawing and highlighting, traversal ac- tivation and deactivation, and various callback lists needed by gadgets. The color and pixmap resources defined by XmManager are directly used by gadgets. If XtSetValues is used to change one of the resources for a man- ager widget, all of the gadget children within the manager also change. Classes Gadget inherits behavior and resources from Object and RectObj classes. The class pointer is xmGadgetClass. The class name is XmGadget. New Resources The following table defines a set of widget resources used by the program- mer 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 re- maining letters (in either lowercase or uppercase, but include any under- scores 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). XmGadget Resource Set Name Class Type Default Access ------------------------------------------------------------------------------------ XmNbottomShadowColor XmCBottomShadowColor Pixel dynamic G XmNhelpCallback XmCCallback XtCallbackList NULL C XmNhighlightColor XmCHighlightColor Pixel dynamic G XmNhighlightOnEnter XmCHighlightOnEnter Boolean False CSG XmNhighlightThickness XmCHighlightThickness Dimension 2 CSG XmNnavigationType XmCNavigationType XmNavigationType XmNONE CSG XmNshadowThickness XmCShadowThickness Dimension 2 CSG XmNtopShadowColor XmCTopShadowColor Pixel dynamic G XmNtraversalOn XmCTraversalOn Boolean True CSG XmNunitType XmCUnitType unsigned char dynamic CSG XmNuserData XmCUserData XtPointer NULL CSG XmNbottomShadowColor Contains the color to use to draw the bottom and right sides of the border shadow. XmNhelpCallback Specifies the list of callbacks that is called when the help key sequence is pressed. The reason sent by the callback is XmCR_HELP. XmNhighlightColor Contains the color of the highlighting rectangle. XmNhighlightOnEnter Specifies if the highlighting rectangle is drawn when the cursor moves into the widget. If the shell's focus policy is XmEX- PLICIT, this resource is ignored, and the widget is highlighted when it has the focus. If the shell's focus policy is XmPOINTER and if this resource is True, the highlighting rectangle is drawn when the the cursor moves into the widget. If the shell's focus policy is XmPOINTER and if this resource is False, the highlight- ing rectangle is not drawn when the the cursor moves into the widget. The default is False. XmNhighlightThickness Specifies the thickness of the highlighting rectangle. XmNnavigationType Determines whether the widget is a tab group. * XmNONE indicates that the widget is not a tab group. * XmTAB_GROUP indicates that the widget is a tab group, unless another widget in the hierarchy has an XmNnavigationType of XmEXCLUSIVE_TAB_GROUP. * XmSTICKY_TAB_GROUP indicates that the widget is a tab group, even if another widget in the hierarchy has an XmNnaviga- tionType of XmEXCLUSIVE_TAB_GROUP. * XmEXCLUSIVE_TAB_GROUP indicates that the widget is a tab group and that widgets in the hierarchy whose XmNnavigation- Type is XmTAB_GROUP are not tab groups. When a parent widget has an XmNnavigationType of XmEXCLU- SIVE_TAB_GROUP, traversal of non-tab-group widgets within the group is based on the order of those widgets in their parent's XmNchildren list. When any widget in a hierarchy has an XmNnavigationType of XmEXCLUSIVE_TAB_GROUP, traversal of tab groups in the hier- archy proceeds to widgets in the order in which their XmN- navigationType resources were specified as XmEXCLU- SIVE_TAB_GROUP or XmSTICKY_TAB_GROUP, whether by creating the widgets with that value, by calling XtSetValues, or by calling XmAddTabGroup. XmNshadowThickness Specifies the size of the drawn border shadow. XmNtopShadowColor Contains the color to use to draw the top and left sides of the border shadow. XmNtraversalOn Specifies traversal activation for this gadget. XmNunitType Provides the basic support for resolution independence. It de- fines the type of units a widget uses with sizing and positioning resources. If the widget's parent is a subclass of XmManager and if the XmNunitType resource is not explicitly set, it defaults to the unit type of the parent widget. If the widget's parent is not a subclass of XmManager, the resource has a default unit type of XmPIXELS. XmNunitType can have the following values: * XmPIXELS-all values provided to the widget are treated as normal pixel values. * Xm100TH_MILLIMETERS-all values provided to the widget are treated as 1/100 millimeter. * Xm1000TH_INCHES-all values provided to the widget are treated as 1/1000 inch. * Xm100TH_POINTS-all values provided to the widget are treated as 1/100 point. A point is a unit used in text processing applications and is defined as 1/72 inch. * Xm100TH_FONT_UNITS-all values provided to the widget are treated as 1/100 of a font unit. A font unit has horizontal and vertical components. These are the values of the Xm- Screen resources XmNhorizontalFontUnit and XmNverticalFontU- nit. XmNuserData Allows the application to attach any necessary specific data to the gadget. This is an internally unused resource. Inherited Resources Gadget inherits the following resources from the named superclass. For a complete description of each resource, refer to the man page for that su- perclass. RectObj Resource Set Name Class Type Default Access --------------------------------------------------------------------- XmNancestorSensitive XmCSensitive Boolean dynamic G XmNborderWidth XmCBorderWidth Dimension 0 CSG XmNheight XmCHeight Dimension dynamic CSG XmNsensitive XmCSensitive Boolean True CSG XmNwidth XmCWidth Dimension dynamic CSG XmNx XmCPosition Position 0 CSG XmNy XmCPosition Position 0 CSG Object Resource Set Name Class Type Default Access --------------------------------------------------------------------- XmNdestroyCallback XmCCallback XtCallbackList NULL C Callback Information A pointer to the following structure is passed to each callback: typedef struct { int reason; XEvent * event; } XmAnyCallbackStruct; reason Indicates why the callback was invoked. For this callback, reason is set to XmCR_HELP. event Points to the XEvent that triggered the callback. Behavior Gadgets cannot have translations associated with them. Because of this, a Gadget's behavior is determined by the Manager widget into which the Gadget is placed. If focus is on a Gadget, events are passed to the Gadget by its Manager. RELATED INFORMATION Object(3X), RectObj(3X), XmManager(3X), and XmScreen(3X). XmGadget(3X)