Obtain a toolbar by specifying it's name.
[C#]
///<summary>Obtain a toolbar by specifying it's name.</summary>
///  
///<param name="application">An IApplication interface.</param>
///<param name="toolbarName">A System.String that is the name of the toolbar to return. Example: "esriArcMapUI.StandardToolBar"</param>
///   
///<returns>An ICommandBar interface.</returns>
///  
///<remarks>Refer to the EDN document http://edndoc.esri.com/arcobjects/9.1/default.asp?URL=/arcobjects/9.1/ArcGISDevHelp/TechnicalDocuments/Guids/ArcMapIds.htm for a listing of available CLSID's and ProgID's that can be used as the toolbarName parameter.</remarks>
public ESRI.ArcGIS.Framework.ICommandBar GetToolbarByName(ESRI.ArcGIS.Framework.IApplication application, System.String toolbarName)
{
  ESRI.ArcGIS.Framework.ICommandBars commandBars = application.Document.CommandBars;
  ESRI.ArcGIS.esriSystem.UID barID = new ESRI.ArcGIS.esriSystem.UIDClass();
  barID.Value = toolbarName; // Example: "esriArcMapUI.StandardToolBar"
  ESRI.ArcGIS.Framework.ICommandItem commandItem = commandBars.Find(barID, false, false);
  if (commandItem != null && commandItem.Type == ESRI.ArcGIS.Framework.esriCommandTypes.esriCmdTypeToolbar)
  {
    return (ESRI.ArcGIS.Framework.ICommandBar)commandItem;
  }
  else
    return null;
}
[Visual Basic .NET]
'''<summary>Obtain a toolbar by specifying it's name.</summary>
'''  
'''<param name="application">An IApplication interface.</param>
'''<param name="toolbarName">A System.String that is the name of the toolbar to return. Example: "esriArcMapUI.StandardToolBar"</param>
'''   
'''<returns>An ICommandBar interface.</returns>
'''  
'''<remarks>Refer to the EDN document http://edndoc.esri.com/arcobjects/9.1/default.asp?URL=/arcobjects/9.1/ArcGISDevHelp/TechnicalDocuments/Guids/ArcMapIds.htm for a listing of available CLSID's and ProgID's that can be used as the toolbarName parameter.</remarks>
Public Function GetToolbarByName(ByVal application As ESRI.ArcGIS.Framework.IApplication, ByVal toolbarName As System.String) As ESRI.ArcGIS.Framework.ICommandBar
  Dim commandBars As ESRI.ArcGIS.Framework.ICommandBars = application.Document.CommandBars
  Dim barID As ESRI.ArcGIS.esriSystem.UID = New ESRI.ArcGIS.esriSystem.UIDClass
  barID.Value = toolbarName ' Example: "esriArcMapUI.StandardToolBar"
  Dim commandItem As ESRI.ArcGIS.Framework.ICommandItem = commandBars.Find(barID, False, False)
  If Not (commandItem Is Nothing) AndAlso commandItem.Type = ESRI.ArcGIS.Framework.esriCommandTypes.esriCmdTypeToolbar Then
    Return CType(commandItem, ESRI.ArcGIS.Framework.ICommandBar)
  Else
    Return Nothing
  End If
End Function