... XmPushButtonGadget - Online Linux Manual PageSection : library call
NAMEXmPushButtonGadget — The PushButtonGadget widget class .iX "XmPushButtonGadget" .iX "widget class" "PushButtonGadget"
SYNOPSIS#include <Xm/PushBG.h>
DESCRIPTIONPushButtonGadget issues commands within an application. It consists of a text label or pixmap surrounded by a border shadow. When PushButtonGadget is selected, the shadow changes to give the appearance that the PushButtonGadget has been pressed in. When PushButtonGadget is unselected, the shadow changes to give the appearance that the PushButtonGadget is out. The default behavior associated with a PushButtonGadget in a menu depends on the type of menu system in which it resides. By default, <Btn1> controls the behavior of the PushButtonGadget. In addition, <Btn3> controls the behavior of the PushButtonGadget if it resides in a PopupMenu system. The actual mouse button used is determined by its RowColumn parent. Thickness for a second shadow may be specified with the XmNshowAsDefault resource. If it has a nonzero value, the Label's XmNmarginLeft, XmNmarginRight, XmNmarginTop, and XmNmarginBottom resources may be modified to accommodate the second shadow. If an initial value is specified for XmNarmPixmap but not for XmNlabelPixmap, the XmNarmPixmap value is used for XmNlabelPixmap. PushButtonGadget uses the XmQTmenuSystem and XmQTspecifyRenderTable traits, and holds the XmQactivatable, XmQTmenuSavvy, and XmQTtakesDefault traits.
ClassesPushButtonGadget inherits behavior, resources, and traits from Object, RectObj, XmGadget and XmLabelGadget. The class pointer is xmPushButtonGadgetClass. The class name is XmPushButtonGadget.
New ResourcesThe 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). XmPushButtonGadget Resource Set NameClassTypeDefaultAccess XmNactivateCallbackXmCCallbackXtCallbackListNULLC XmNarmCallbackXmCCallbackXtCallbackListNULLC XmNarmColorXmCArmColorPixeldynamicCSG XmNarmPixmapXmCArmPixmapPixmapXmUNSPECIFIED_PIXMAPCSG XmNdefaultButtonShadowThicknessXmCdefaultButtonShadowThicknessDimensiondynamicCSG XmNdisarmCallbackXmCCallbackXtCallbackListNULLC XmNfillOnArmXmCFillOnArmBooleanTrueCSG XmNmultiClickXmCMultiClickunsigned chardynamicCSG XmNshowAsDefaultXmCShowAsDefaultDimension0CSG XmNactivateCallback Specifies the list of callbacks that is called when the PushButtonGadget is activated. It is activated when the user presses and releases the active mouse button while the pointer is inside the PushButtonGadget. Activating PushButtonGadget also disarms it. For this callback, the reason is XmCR_ACTIVATE. This callback uses the XmQTactivatable trait. XmNarmCallback Specifies the list of callbacks that is called when PushButtonGadget is armed. It is armed when the user presses the active mouse button while the pointer is inside the PushButtonGadget. For this callback, the reason is XmCR_ARM. XmNarmColor Specifies the color with which to fill the armed button. XmNfillOnArm must be set to True for this resource to have an effect. The default for a color display is a color between the background and the bottom shadow color. For a monochrome display, the default is set to the foreground color, and any text in the label appears in the background color when the button is armed. XmNarmPixmap Specifies the pixmap to be used as the button face if XmNlabeltype is XmPIXMAP or XmPIXMAP_AND_STRING and PushButtonGadget is armed. This resource is disabled when the PushButtonGadget is in a menu. XmNdefaultButtonShadowThickness This resource specifies the width of the default button indicator shadow. If this resource is 0 (zero), the width of the shadow comes from the value of the XmNshowAsDefault resource. If this resource is greater than zero, the XmNshowAsDefault resource is only used to specify whether this button is the default. The default value is the initial value of XmNshowAsDefault. XmNdisarmCallback Specifies the list of callbacks that is called when the PushButtonGadget is disarmed. PushButtonGadget is disarmed when the user presses and releases the active mouse button while the pointer is inside that gadget. For this callback, the reason is XmCR_DISARM. XmNfillOnArm Forces the PushButtonGadget to fill the background of the button with the color specified by XmNarmColor when the button is armed and when this resource is set to True. If it is False, only the top and bottom shadow colors are switched. When the PushButtonGadget is in a menu, this resource is ignored and assumed to be False. XmNmultiClick If a button click is followed by another button click within the time span specified by the display's multiclick time, and this resource is set to XmMULTICLICK_DISCARD, the second click is not processed. If this resource is set to XmMULTICLICK_KEEP, the event is processed and click_count is incremented in the callback structure. When the button is in a menu, the default is XmMULTICLICK_DISCARD; otherwise, for a button not in a menu, the default value is XmMULTICLICK_KEEP. XmNshowAsDefault If XmNdefaultButtonShadowThickness is greater than 0 (zero), a value greater than zero in this resource specifies to mark this button as the default button. If XmNdefaultButtonShadowThickness is 0, a value greater than 0 in this resource specifies to mark this button as the default button with the shadow thickness specified by this resource. The space between the shadow and the default shadow is equal to the sum of both shadows. The default value is 0. When the Display resource XmNdefaultButtonEmphasis has a value of XmEXTERNAL_HIGHLIGHT (the default), PushButton draws the location cursor outside of the outer shadow. When this resource has a value of XmINTERNAL_HIGHLIGHT, the highlight is drawn between the inner and outer shadows. When this value is not 0, the Label XmNmarginLeft, XmNmarginRight, XmNmarginTop, and XmNmarginBottom resources may be modified to accommodate the second shadow. This resource is disabled when the PushButton is in a menu.
Inherited ResourcesPushButtonGadget inherits behavior and resources from the superclasses described in the following tables. For a complete description of each resource, refer to the reference page for that superclass. XmLabelGadget Resource Set NameClassTypeDefaultAccess XmNacceleratorXmCAcceleratorStringNULLCSG XmNacceleratorTextXmCAcceleratorTextXmStringNULLCSG XmNalignmentXmCAlignmentunsigned chardynamicCSG XmNfontListXmCFontListXmFontListdynamicCSG XmNlabelInsensitivePixmapXmCLabelInsensitivePixmapPixmapXmUNSPECIFIED_PIXMAPCSG XmNlabelPixmapXmCLabelPixmapPixmapdynamicCSG XmNlabelStringXmCXmStringXmStringdynamicCSG XmNlabelTypeXmCLabelTypeunsigned charXmSTRINGCSG XmNmarginBottomXmCMarginBottomDimensiondynamicCSG XmNmarginHeightXmCMarginHeightDimension2CSG XmNmarginLeftXmCMarginLeftDimensiondynamicCSG XmNmarginRightXmCMarginRightDimensiondynamicCSG XmNmarginTopXmCMarginTopDimensiondynamicCSG XmNmarginWidthXmCMarginWidthDimension2CSG XmNmnemonicXmCMnemonicKeySymNULLCSG XmNpixmapPlacementXmCPixmapPlacementunsigned intXmPIXMAP_LEFTCSG XmNpixmapTextPaddingXmCSpaceDimension2CSG XmNmnemonicCharSetXmCMnemonicCharSetStringdynamicCSG XmNrecomputeSizeXmCRecomputeSizeBooleanTrueCSG XmNrenderTableXmCRenderTableXmRenderTabledynamicCSG XmNstringDirectionXmCStringDirectionXmStringDirectiondynamicCSG XmGadget Resource Set NameClassTypeDefaultAccess XmNbackgroundXmCBackgroundPixeldynamicCSG XmNbackgroundPixmapXmCPixmapPixmapXmUNSPECIFIED_PIXMAPCSG XmNbottomShadowColorXmCBottomShadowColorPixeldynamicCSG XmNbottomShadowPixmapXmCBottomShadowPixmapPixmapdynamicCSG XmNhelpCallbackXmCCallbackXtCallbackListNULLC XmNforegroundXmCForegroundPixeldynamicCSG XmNhighlightColorXmCHighlightColorPixeldynamicCSG XmNhighlightOnEnterXmCHighlightOnEnterBooleanFalseCSG XmNhighlightPixmapXmCHighlightPixmapPixmapdynamicCSG XmNhighlightThicknessXmCHighlightThicknessDimension2CSG XmNlayoutDirectionXmNCLayoutDirectionXmDirectiondynamicCG XmNnavigationTypeXmCNavigationTypeXmNavigationTypeXmNONECSG XmNshadowThicknessXmCShadowThicknessDimension2CSG XmNtopShadowColorXmCTopShadowColorPixeldynamicCSG XmNtopShadowPixmapXmCTopShadowPixmapPixmapdynamicCSG XmNtraversalOnXmCTraversalOnBooleanTrueCSG XmNunitTypeXmCUnitTypeunsigned chardynamicCSG XmNuserDataXmCUserDataXtPointerNULLCSG RectObj Resource Set NameClassTypeDefaultAccess XmNancestorSensitiveXmCSensitiveBooleandynamicG XmNborderWidthXmCBorderWidthDimension0N/A XmNheightXmCHeightDimensiondynamicCSG XmNsensitiveXmCSensitiveBooleanTrueCSG XmNwidthXmCWidthDimensiondynamicCSG XmNxXmCPositionPosition0CSG XmNyXmCPositionPosition0CSG Object Resource Set NameClassTypeDefaultAccess XmNdestroyCallbackXmCCallbackXtCallbackListNULLC
Callback InformationA pointer to the following structure is passed to each callback: typedef struct
{
int reason;
XEvent * event;
int click_count;
} XmPushButtonCallbackStruct;reason Indicates why the callback was invoked. event Points to the XEvent that triggered the callback. click_count Valid only when the reason is XmCR_ACTIVATE. It contains the number of clicks in the last multiclick sequence if the XmNmultiClick resource is set to XmMULTICLICK_KEEP; otherwise it contains 1. The activate callback is invoked for each click if XmNmultiClick is set to XmMULTICLICK_KEEP.
BehaviorXmPushButtonGadget includes behavior from XmGadget. XmPushButtonGadget includes menu traversal behavior from XmLabelGadget. Additional behavior for XmPushButtonGadget is described in the following list. <Btn2Down>: Drags the contents of a PushButtonGadget label, identified when <Btn2> is pressed. This action is undefined for PushButtonGadgets used in a menu system. <Btn1Down>: This action arms the PushButtonGadget. In a menu, this action unposts any menus posted by the PushButtonGadget's parent menu, disables keyboard traversal for the menu, and enables mouse traversal for the menu. It draws the shadow in the armed state. Unless the button is already armed, it calls the XmNarmCallback callbacks. If the button is not in a menu, this action draws the shadow in the armed state. If XmNfillOnArm is set to True, it fills the button with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, the XmNarmPixmap is used for the button face. It calls the XmNarmCallback callbacks. <Btn1>(2+): If XmNmultiClick is XmMULTICLICK_DISCARD, this action does nothing. If XmNmultiClick is XmMULTICLICK_KEEP, this action draws the shadow in the armed state. If the button is not in a menu and if XmNfillOnArm is set to True, it fills the button with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, the XmNarmPixmap is used for the button face. This action calls the XmNarmCallback callbacks. <Btn1Up>: In a menu, this action unposts all menus in the menu hierarchy and activates the PushButtonGadget. It calls the XmNactivateCallback callbacks and then the XmNdisarmCallback callbacks. If the PushButtonGadget is not in a menu, this action draws the shadow in the unarmed state. If XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, the XmNlabelPixmap is used for the button face. If the pointer is still within the button, this action calls the callbacks for XmNactivateCallback and XmNdisarmCallback. <Btn1Up>(2+): If XmNmultiClick is XmMULTICLICK_DISCARD, this action does nothing. If XmNmultiClick is XmMULTICLICK_KEEP, this action increments click_count in the callback structure and draws the shadow in the unarmed state. If the button is not in a menu and if XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, XmNlabelPixmap is used for the button face. If the pointer is within the PushButtonGadget, this action calls the callbacks for XmNactivateCallback and XmNdisarmCallback. <Key><osfActivate>: In a menu, this action unposts all menus in the menu hierarchy, unless the button is already armed, and calls the XmNarmCallback callbacks, the XmNactivateCallback and the XmNdisarmCallback callbacks. Outside a menu, KActivate has no effect. For PushButtonGadgets outside of a menu, if the parent is a manager, this action passes the event to the parent. <Key><osfSelect>: In a menu, this action unposts all menus in the menu hierarchy, unless the button is already armed, and calls the XmNarmCallback callbacks. This acton calls the XmNactivateCallback and XmNdisarmCallback callbacks. Outside a menu, this action draws the shadow in the armed state and, if XmNfillOnArm is set to True, fills the button with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, XmNarmPixmap is used for the button face. This action calls the XmNarmCallback callbacks. Outside a menu, this action also arranges for the following to happen, either immediately or at a later time: the shadow is drawn in the unarmed state and, if XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, the XmNlabelPixmap is used for the button face. The XmNactivateCallback and XmNdisarmCallback callbacks are called. <Key><osfHelp>: In a Pulldown or Popup MenuPane, unposts all menus in the menu hierarchy and restores keyboard focus to the widget that had the focus before the menu system was entered. This action calls the callbacks for XmNhelpCallback if any exist. If there are no help callbacks for this widget, this action calls the help callbacks for the nearest ancestor that has them. <Key><osfCancel>: In a toplevel Pulldown MenuPane from a MenuBar, unposts the menu, disarms the MenuBar CascadeButton and the MenuBar, and restores keyboard focus to the widget that had the focus before the MenuBar was entered. In other Pulldown MenuPanes, unposts the menu. In a Popup MenuPane, unposts the menu and restores keyboard focus to the widget from which the menu was posted. For a PushButtonGadget outside of a menu, if the parent is a manger, this action passes the event to the parent. <Enter>: In a menu, if keyboard traversal is enabled, this action does nothing. Otherwise, it draws the shadow in the armed state and calls the XmNarmCallback callbacks. If the PushButtonGadget is not in a menu and the cursor leaves and then reenters the PushButtonGadget while the button is pressed, this action draws the shadow in the armed state. If XmNfillOnArm is set to True, it also fills the button with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, the XmNarmPixmap is used for the button face. <Leave>: In a menu, if keyboard traversal is enabled, this action does nothing. Otherwise, it draws the shadow in the unarmed state and calls the XmNdisarmCallback callbacks. If the PushButtonGadget is not in a menu and the cursor leaves the PushButtonGadget while the button is pressed, this action draws the shadow in the unarmed state. If XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, the XmNlabelPixmap is used for the button face.
Virtual BindingsThe bindings for virtual keys are vendor specific. For information about bindings for virtual buttons and keys, see VirtualBindings(3).
RELATEDObject(3), RectObj(3), XmCreatePushButtonGadget(3), XmGadget(3), XmLabelGadget(3), XmRowColumn(3), XmVaCreatePushButtonGadget(3), and XmVaCreateManagedPushButtonGadget(3). 0
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