×
Namespaces

Variants
Actions
Revision as of 12:10, 27 June 2008 by kiran10182 (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

How to create Label

From Nokia Developer Wiki
Jump to: navigation, search

Following code snippet shows how to create Label control in Symbian C++.

Step 1: LabelTestAppView.h

  • Open your LabelTestAppView.h file.
  • Inlcude entries for required header files.
#include <eiklabel.h>
  • Add required functions which will be needed for control.
TInt CountComponentControls() const;
CCoeControl* ComponentControl(TInt aIndex) const;
void SetText(const TDesC& aText); // To change text(user-inputted)
  • Declare object of Label:
private: // data
// ..
CEikLabel* iLabel;

Step 2: LabelTestAppView.cpp

  • Open your "LabelTestAppView.cpp" file.
  • Now in the ContructL() function of your LabelTestAppView.cpp file:
void CLabelTestAppView::ConstructL( const TRect& aRect )
{
// Create a window for this application view
CreateWindowL();
 
_LIT(KTextHelloWorld, "hello world");
iLabel = new (ELeave) CEikLabel;
iLabel->SetContainerWindowL( *this );
iLabel->SetTextL(KTextHelloWorld);
 
// Set the windows size
SetRect( aRect );
 
// Activate the window, which makes it ready to be drawn
ActivateL();
}
 
CLabelTestAppView::~CLabelTestAppView()
{
delete iLabel;
}
 
void CLabelTestAppView::SizeChanged()
{
iLabel->SetExtent( TPoint(0,0), TSize(Rect().Width()/2, Rect().Height()/2));
}
 
TInt CLabelTestAppView::CountComponentControls() const
{
return 1;
}
 
CCoeControl* CLabelTestAppView::ComponentControl(TInt aIndex) const
{
switch ( aIndex )
{
case 0:
return iLabel;
default:
return NULL;
}
}
 
//Call this function to change value of Label
void CLabelTestAppView::SetText(const TDesC& aText)
{
iLabel->SetTextL(aText);
}

Note: Do not forget to add an entry for eikcoctl.lib in your .mmp file.


64 page views in the last 30 days.

Was this page helpful?

Your feedback about this content is important. Let us know what you think.

 

Thank you!

We appreciate your feedback.

×