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Moving scrollbar thumb on CEikScrollBarFrame

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|id=CS000885
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|platform=S60 3rd Edition, FP1
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|devices=Nokia N95 8GB
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|category=Symbian C++
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|subcategory=UI
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|creationdate=April 7, 2008
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|keywords=CEikScrollBarFrame, TAknDoubleSpanScrollBarModel, TAknDoubleSpanScrollBarModel::SetFocusPosition(), CEikScrollBarFrame::SetVFocusPosToThumbPos()
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==Overview==
 
==Overview==
  
This snippet demonstrates how to move the scrollbar thumb to a certain position. This is useful, for example, after an external scroll (such as a scroll caused by program code).
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This snippet demonstrates how to move the scrollbar thumb to a certain position. This is useful, for example, after an external scroll (such as a scroll caused by program code).
  
 
This snippet can be self-signed.
 
This snippet can be self-signed.
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<code>
 
<code>
LIBRARY eikcoctl.lib
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LIBRARY eikcoctl.lib
 
</code>
 
</code>
  
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==Source file==
 
==Source file==
  
The following code updates the scrollbar model and moves the vertical scrollbar thumb to a position specified by the model. The code could be written in <tt>CMyContainer::OfferKeyEventL()</tt>, for example.
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The following code updates the scrollbar model and moves the vertical scrollbar thumb to a position specified by the model. The code could be written in {{Icode|CMyContainer::OfferKeyEventL()}}, for example.
  
 
<code cpp>
 
<code cpp>
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* [[CS000869 - Custom control: Scrollbars]]
 
* [[CS000869 - Custom control: Scrollbars]]
  
[[Category:Symbian C++]][[Category:Code Examples]][[Category:UI]][[Category:Code Snippet]]
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[[Category:Symbian C++]][[Category:Code Snippet]][[Category:UI]][[Category:Code Snippet]]

Revision as of 08:37, 17 April 2012

Article Metadata
Tested with
Devices(s): Nokia N95 8GB
Compatibility
Platform(s): S60 3rd Edition, FP1
S60 3rd Edition FP1
Article
Keywords: CEikScrollBarFrame, TAknDoubleSpanScrollBarModel, TAknDoubleSpanScrollBarModel::SetFocusPosition(), CEikScrollBarFrame::SetVFocusPosToThumbPos()
Created: tapiolaitinen (01 Apr 2008)
Last edited: hamishwillee (17 Apr 2012)

Contents

Overview

This snippet demonstrates how to move the scrollbar thumb to a certain position. This is useful, for example, after an external scroll (such as a scroll caused by program code).

This snippet can be self-signed.

MMP file

The following libraries are required:

LIBRARY eikcoctl.lib

Header file

#include <eiksbfrm.h>  // CEikScrollBarFrame
#include <eikscrlb.h> // TAknDoubleSpanScrollBarModel
CEikScrollBarFrame* iScrollBarFrame;
TAknDoubleSpanScrollBarModel iVModel;

Source file

The following code updates the scrollbar model and moves the vertical scrollbar thumb to a position specified by the model. The code could be written in CMyContainer::OfferKeyEventL(), for example.

// Update the model. Naturally, number 10 would be calculated, not specified
// as a magic number constant.
iVModel.SetFocusPosition(10);
// Move the scrollbar thumb to model position
iScrollBarFrame->SetVFocusPosToThumbPos(iVModel.FocusPosition());

Postconditions

The thumb of the vertical scrollbar moves to the position specified by the scrollbar model.

See also

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