Archived:Setting an image for a softkey using Symbian C++

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Article Metadata

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Tested with

Devices(s): Nokia N96, Nokia N78

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Compatibility

Platform(s): S60 3rd Edition, FP2

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Article

Created: User:Technical writer 1 (04 Apr 2008)

Last edited: hamishwillee (14 Jun 2012)

Description

The Command Button Array (CBA) is located at the bottom of the screen in S60 devices (in portrait mode). The following code snippet demonstrates how to set an image for the left and right softkeys.

#include <eikbtgpc.h>
#include <eikcba.h>     // link against avkon.lib, eikcoctl.lib
 
void SetCbaImage( CEikButtonGroupContainer* aBtGrC, 
             CEikImage& aImage, 
             TBool aLSK )
{
   TInt cmdPos = aLSK ? 0 : 2;
   TInt cmdId = aBtGrC->ButtonGroup()->CommandId( cmdPos );
   CEikCbaButton* button = 
     (CEikCbaButton*)aBtGrC->ControlOrNull( cmdId );
   if( button )
     {
     button->SetImage(aImage);
     aBtGrC->SetRect( aBtGrC->Rect() );
     aBtGrC->DrawNow();
     }
}

Using SetCbaImage():

_LIT(KCBAImageMBMFilename, "c:\\data\\images\\testimage.mbm");
TFileName mbmFile(KCBAImageMBMFilename);
 
cba = CEikButtonGroupContainer::Current();
if(cba)
{
   image = new (ELeave) CEikImage;
   CleanupStack::PushL( image );
   image->CreatePictureFromFileL( mbmFile, EMbmEnumLSKImage );
   image->SetBrushStyle(CGraphicsContext::ESolidBrush);
   CleanupStack::Pop( image ); 
 
   // Set image for LSK (ETrue as 3rd parameter)
   // Transfers ownership of image - do not delete yourself
   SetCbaImage( cba, *image, ETrue );
   image->DrawNow();
}