public void CreateBars(
    PdfViewerToolbarKind flags
)

Public Sub CreateBars(
    flags As PdfViewerToolbarKind
)

using DevExpress.XtraBars.Ribbon;
using DevExpress.XtraPdfViewer;

  public Form1()
  {
      InitializeComponent();

      //Create a bar manager:
      BarManager bar = new BarManager();

      //Assign it with a form:
      bar.Form = this;

      //Add the PDF Viewer to the collection
      //of controls on this form:
      this.Controls.Add(pdfViewer);
      pdfViewer.CreateBars(PdfViewerToolbarKind.Main);
  }

Imports DevExpress.XtraBars.Ribbon
Imports DevExpress.XtraPdfViewer

Public Sub New()
    InitializeComponent()

    ' Create a bar manager:
    Dim bar As BarManager = New BarManager()

    ' Assign it with a form:
    bar.Form = Me

      'Add the PDF Viewer to the collection
      'of controls on this form:
    Me.Controls.Add(pdfViewer)
    pdfViewer.CreateBars(PdfViewerToolbarKind.Main)
End Sub