VkModified(3x)							VkModified(3x)

NAME    [Toc]    [Back]

     VkModified	- Base class for VkModifiedAttachment

INHERITS FROM    [Toc]    [Back]

     VkCallbackObject

HEADER FILE    [Toc]    [Back]

     #include <Vk/VkModified.h>

PUBLIC PROTOCOL	SUMMARY
   Constructor/Destructor
	   virtual void	~VkModified(void);
	   VkModified(Boolean blankIsValue = False);


   Configuration    [Toc]    [Back]
	   virtual void	fixPreviousValue(char* value,
					 Boolean setValueAlso =	True);


   Access Functions    [Toc]    [Back]
	   Boolean blankIsValue(void);
	   Boolean modified(void);
	   char* value(void);
	   Boolean latestDisplay(void);
	   char* previousValue(void);


   Control Functions    [Toc]    [Back]
	   virtual void	setModified(Boolean v);
	   virtual void	toggleDisplay(void);
	   virtual void	setValue(char* value);

CLASS DESCRIPTION    [Toc]    [Back]

	  VkModified is	the base class for VkModifiedAttachment.  Applications
	  will usually use VkModifiedAttachment, but find the methods
	  inherited from VkModified useful.

FUNCTION DESCRIPTIONS    [Toc]    [Back]

   VkModified()
	   VkModified(Boolean blankIsValue = False);
	   virtual void	~VkModified(void);


	  Creates a VkModified object which tracks previous and	current	text
	  values.  It tells when the previous value differs from the current
	  value, and can returns the selected value.



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VkModified(3x)							VkModified(3x)



	  The first argument defaults to False and indicates whether a blank
	  (empty string) is considered a valid previous	value when displaying
	  the folded corner.

   blankIsValue()
	   Boolean blankIsValue(void);


	  Indicates whether a blank is considered a valid previous value.

   modified()
	   Boolean modified(void);


	  Indicates whether the	previous value differs from the	current	value.

   setModified()
	   virtual void	setModified(Boolean v);


	  Forces a previous-value-modified state.

   latestDisplay()
	   Boolean latestDisplay(void);


	  Indicates if the displayed value is the current value	rather than
	  the previous value.

   toggleDisplay()
	   virtual void	toggleDisplay(void);


	  Switches the displayed value from the	current	value to the previous
	  value	and vice-versa.

   value()
	   char* value(void);


	  Returns the current value.

   previousValue()
	   char* previousValue(void);


	  Returns the previous value.

   setValue()
	   virtual void	setValue(char* value);





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VkModified(3x)							VkModified(3x)



	  Changes the current value.  This also	forces the display to the
	  current value.

   fixPreviousValue()
	   virtual void	fixPreviousValue(char* value,
					 Boolean setValueAlso =	True);


	  Forces the previous value to be a fixed string.  The second argument
	  defaults to True and indicates whether the current value should be
	  changed at the same time.

KNOWN DERIVED CLASSES    [Toc]    [Back]

     VkModifiedAttachment

KNOWN CLASSES THAT USE THIS CLASS    [Toc]    [Back]

     VkModified

SEE ALSO    [Toc]    [Back]

     VkModified,
     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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