What is the difference between OnInitialUpdate and OnUpdate?

Answers were Sorted based on User's Feedback



What is the difference between OnInitialUpdate and OnUpdate?..

Answer / adil mir ajk uni mzd

OnInitialUpdate( ) is a virtual view function Called by the
framework after the view is first attached to the document,
but before the view is initially displayed. The default
implementation of this function calls the OnUpdate member
function
OnUpdate() is called by the framework when the doc has been
modified.It is actually called by UpdateAllViews() to
reflect changes in all the views associated with the doc.

Is This Answer Correct ?    3 Yes 0 No

What is the difference between OnInitialUpdate and OnUpdate?..

Answer / satheeshkedarisetti

Both are uses for to update the view. OnInitialUpdate()
updates the view while initialization, this function called
by framework while initialization. but default
implemenation calls OnUpdate function. if the window is
resizable or it has scroll bars, use OnUpdate() to change
the scroll limits and document changes.

Is This Answer Correct ?    2 Yes 0 No

What is the difference between OnInitialUpdate and OnUpdate?..

Answer / krishna akkulu

Both update the view, But

OnInitialUpdate, called when the view is first created
OnUpdate, called when the document updates its views

Is This Answer Correct ?    3 Yes 1 No

What is the difference between OnInitialUpdate and OnUpdate?..

Answer / priyanka

OnInitialUpdate() is called after a view is first attached
to the doc and before it gets displayed.We can override it
to put some initializations containing info abt the doc.It
calls OnUpdate().
OnUpdate() is called by the framework when the doc has been
modified.It is actually called by UpdateAllViews() to
reflect changes in all the views associated with the doc.

Is This Answer Correct ?    1 Yes 0 No

What is the difference between OnInitialUpdate and OnUpdate?..

Answer / jianhua wang

OnInitialUpdate( ) is a virtual view function Called by the
framework after the view is first attached to the document,
but before the view is initially displayed. The default
implementation of this function calls the OnUpdate member
function
OnUpdate( ) is a virtual view function Called by the
framework after the view's document has been modified; this
function is called by CDocument::UpdateAllViews and allows
the view to update its display to reflect those modifications.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More MFC Interview Questions

Explain in sort What is CTargetObject?

2 Answers  


1)why we cant create more than one instance of the class Derived from CWinApp

5 Answers   Alstom,


What is the command routing in MFC framework?

3 Answers  


what is the size of a process

2 Answers   E Logic, IBM,


What is LPCTSTR? What does LP denote it?

4 Answers  






What is the base class for MFC Framework ?

4 Answers  


What is the difference between Extension DLL and Regular DLL?

6 Answers   GE,


What is the difference between Synchronous sockets and asynchronous sockets?

2 Answers  


Explain about MDI and CMultiDocTemplate ?

2 Answers  


What is the size of class

18 Answers   Aircom,


Tell me the different controls in MFC ?

5 Answers  


How can we create thread in MFC framework?

3 Answers  


Categories