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VkPrefOption(3x)					      VkPrefOption(3x)

NAME
     VkPrefOption - Option menu preference field

INHERITS FROM
     VkPrefItem : VkComponent : VkCallbackObject

HEADER FILE
     #include <Vk/VkPrefItem.h>

PUBLIC PROTOCOL SUMMARY
   Constructor/Destructor
	   VkPrefOption(const char* name, int numEntries);
	   virtual void ~VkPrefOption(void);

   Setting and Getting Values
	   void setValue(int index);
	   int getValue(void);

   Access Functions
	   int getSize(void);
	   void setSize(int numEntries);
	   void setLabel(int index,char* label);
	   char* getLabel(int index);
	   Widget getButton(int index);

CLASS DESCRIPTION
	  VkPrefOption is an option menu preference object.  Option menus
	  consist of a collection of individual Motif buttons, and keep track
	  of the last button selected by the user.  See VkPrefItem for more
	  generic information about preference objects.

FUNCTION DESCRIPTIONS
   VkPrefOption()
	   VkPrefOption(const char* name, int numEntries);
	   virtual void ~VkPrefOption(void);

	  Creates a Motif XmOptionMenu widget as its base, using the name
	  "optionMenu".	 This name is hardcoded for the effective use of color
	  schemes.  A label widget is created using the name suffixed by
	  "Label".  The number of entries in the option menu is specified by
	  the second argument.	The individual buttons are created using the
	  name suffixed by "Button" suffixed by the zero-based button number.

   setValue()

									Page 1

VkPrefOption(3x)					      VkPrefOption(3x)

	   void setValue(int index);

	  Changes the option object's current and real value.  The value is
	  the zero-based button index of the selected button.

   getValue()
	   int getValue(void);

	  Copies the option object's current value to the real value, and
	  returns it.

   getSize()
	   int getSize(void);

	  Returns the current number of buttons in the option menu.

   setSize()
	   void setSize(int numEntries);

	  Change the number of buttons in the option menu.

   setLabel()
	   void setLabel(int index, char* label);

	  Changes the label of a particular button in the option menu.	The
	  string will be looked up first as a resource and if that fails, used
	  verbatim.

   getLabel()
	   char* getLabel(int index);

	  Retrieves the label of a particular button in the option menu.

   getButton()
	   Widget getButton(int index);

	  Returns the Motif XmPushButton widget associated with a particular
	  button in the option menu.

INHERITED MEMBER FUNCTIONS
   Inherited from VkPrefItem
	  VkPrefItem(), ~VkPrefItem(), activate(), deleteChildren(),
	  labelHeight(), baseHeight(), setLabelHeight(), setBaseHeight(),
	  activateCallback(), installDestroyHandlers(), labelWidget(),
	  buildLabel(), getHeight(), setHeight(), _labelWidget, _baseName,

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VkPrefOption(3x)					      VkPrefOption(3x)

	  _labelName, _activated, _homogeneous,

   Inherited from VkComponent
	  installDestroyHandler(), removeDestroyHandler(), widgetDestroyed(),
	  setDefaultResources(), getResources(), manage(), unmanage(),
	  baseWidget(), okToQuit(), _name, _baseWidget, _w, deleteCallback

   Inherited from VkCallbackObject
	  callCallbacks(), addCallback(), removeCallback(),
	  removeAllCallbacks()

SEE ALSO
     VkPrefItem, VkComponent
     ViewKit Programmer's Guide
     The X Window System, DEC Press, Bob Sheifler and Jim Gettys
     The X Window System Toolkit, DEC Press, Paul Asente and Ralph Swick
     The OSF/Motif Programmers Reference, Prentice Hall, OSF

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