XmTab-1.1(1) XmTab-1.1(1)
NAME
XmTab -The Tab widget class
SYNOPSIS
#include <Tab.h>
DESCRIPTION
Tab is a container widget which shows the tabs at the top of it and
shows the Tab widgets (it's children) accoring to the Tab.
Following are some important considerations in using Tab:
o There is no effect when using XtSetValues to change the XmNx and
XmNy resources of a child, because the Tab itself decides the XmNx
and XmNy resources of a child.
o The children of Tab get managed/unmanaged automatically while tabs
get selected/unselected. The user shouldn't manage/unmanage its
children explicitly.
o TabWidget always shows only the managed children. Unmanaging a
child causes removal corresponding tab at the top.
o If XmNresizeChildren is TRUE (default), XmTab resizes all it's
children to same size. In such a case, the children behaves like
the children of XmForm all XmNleftAttachment, XmNrightAttachment,
XmNtopAttachment, XmNbottomAttachment set to XmATTACH_FORM.
Classes
Tab inherits behavoir and resources from Core, Composite, Constraint
and XmManager classes.
The class pointer is xmTabWidgetClass.
The class name is XmTab.
New Resources
The following table defines s 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.
c s s s lfCW l. XmTab Resource Set Name Class Type Default
XmNmarginWidth XmRMarginWidth Dimension 3
XmNmarginHeight XmRMarginHeight Dimension 3
XmNresizeChildren XmRResizeChildren Boolean TRUE
- 1 - Formatted: March 22, 2026
XmTab-1.1(1) XmTab-1.1(1)
XmNtabFontList XmRTabFontList XmFontList NULL
XmNvalueChangedCallback XmRCallback XtPointer NULL
XmNmarginWidth
Specify the margin width at the left and right of the window.
XmNmarginHeight
Specify the margin height at the top and bottom of the window.
XmNresizeChildren
Specify whether resizing of the children should be done. TRUE makes
all children same size.
XmNtabFontList
Specify the font list of the tab label.
XmNvalueChangedCallback
This callback is called after selecting a tab. It passes a pointer of
an instance of XmTabCallbackStruct where
typedef struct {
int reason;
XEvent *event;
Widget tab_child;
XmString tab_label;
}XmTabCallbackStruct;
tab_child is the current child of the XmTab selected and tab_label is
corresponding tab label.
Constraint Resources
Tab defines the following constraint resources for its children:
c s s s lfCW l. XmTab Constraint Resource Set
Name Class Type Default
XmNtabLabel XmRTabLabel XmString NULL
XmNtabLabel
The string to be shown as tab-label. If XmNtabLabel is NULL (default),
Tab shows the name of the child as tab label.
RELATED INFORMATION
Core, Composite, Constraint, XmManager.
- 2 - Formatted: March 22, 2026
XmTab-1.1(1) XmTab-1.1(1)
Author: Pralay Dakua (pkanti@hotmail.com)
- 3 - Formatted: March 22, 2026
