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This article was originally created by Santeriv and has been reviewed by Forum Nokia.

ID	TSS000784	Creation date	November 16, 2007, updated October 30, 2008
Platform	S60 3rd Edition S60 3rd Edition, FP1 S60 3rd Edition, FP2	Devices
Category	Symbian C++	Subcategory	Navigation, Landmarks

Keywords (APIs, classes, methods, functions): TLmkItemIdDbCombiInfo

Overview

The TLmkItemIdDbCombiInfo class provides methods for getting the ID of a landmark or category and the database handle to which the selected landmark or category belongs.

Description

The client application executes methods to get the ID of a landmark and the database handle and then uses those for its internal purposes, such as for modifying the landmark attributes or for renaming the category. Note that the client takes the ownership of the returned database pointer and is responsible for deleting it.

Incorrect use of the Landmarks category selector dialog (CLmkCategorySelectorDlg) results in a memory leak whenever a category or categories are selected.

Solution

After selecting a category, the TLmkItemIdDbCombiInfo object contains a pointer to the landmarks database. The client is responsible for deleting this pointer once it is no longer needed.

 #include <clmkcategoryselectordlg.h>  // link against lmkcommonui.lib
 #include <tlmkitemiddbcombiinfo.h>
 
 CLmkCategorySelectorDlg* dlg = CLmkCategorySelectorDlg::NewL(EFalse);
 
 TLmkItemIdDbCombiInfo selectedItem;
 
 TInt ret = dlg->ExecuteLD(selectedItem);
 
 if( ret != 0 )
  {
  ...       
  // Store the pointer to CPosLandmarkDatabase and
  // remember to delete it in the destructor.
  // The database pointer is the same for all landmarks 
  // from the same database.
  ilDb = selectedItem.GetLmDb();
  }  

See the LocationLandmarksUIRefApp SDK example application for a demonstration on using CLmkCategorySelectorDlg.