Returns the keys of all the items in the given column.
SapGui.bdh
SapGuiTreeGetColumnCol( in  sControlId  : string,
                        in  sColumnName : string,
                        out nIterator   : number ) : boolean; 
               	 | Parameter | Description | 
|---|---|
| sControlId | The control’s unique id. | 
| sColumnName | The column to be queried for keys. | 
| nIterator | This parameter will be assigned the collection iterator. | 
transaction TMain
 var
    sConnID   : string;
    i         : number;
    nIterator : number;
    nType     : number;
    nObject   : number;
    bRet      : boolean;
    sStr1, sStr2 : string;
 begin
    // Connecting to SAP
    sConnID := SapGuiOpenConnection(" /SAP_CODEPAGE=1100 /FULLMENU 10.5.2.198 0 /3");
    SapGuiSetActiveConnection(sConnID);
    SapGuiSetActiveSession("ses[0]");
          
    // SAP
    SapGuiSetActiveWindow("wnd[0]", "SAP", SAPGUI_MATCH_Exact);
    SapGuiWindowAction(SAPGUI_WND_MAXIMIZE);
          
    // Logon to SAP System
    SapGuiIgnoreError(SAPENGINE_STATUSBAR_CHANGED, SEVERITY_SUCCESS);
    ThinkTime(2.8);
    SapGuiLogon("ddic", "minisap", "000", "");
        
    // Copyright
    ThinkTime(2.1);
    SapGuiSetActiveWindow("wnd[1]", "Copyright", SAPGUI_MATCH_Exact);
    SapGuiPressButton("tbar[0]/btn[0]");
          
    // SAP Easy Access
    ThinkTime(9.9);
    SapGuiSetActiveWindow("wnd[0]", "SAP Easy Access",SAPGUI_MATCH_Exact);
    SapGuiTreeGetColumnCol("tree[0]", "col1", nIterator);
    while (SapGuiIteratorHasMore(nIterator)) do
      SapGuiIteratorFetchNext(nIterator);
      SapGuiIteratorGetValue(nIterator, sValue, nType);
      Print(string(nType) + " " + sValue);
    end;
    SapGuiIteratorRelease(nIterator);
  end TMain;