PPT: Sample VB Code to Retrieve the Title of a Graph

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Example 1

  Sub GetGraphTitle()

     ' Used for error trapping.
     On Error Resume Next

     ' Clear the error object.
     Err.Clear

     ' A reference to an object.
     Dim oGraph As Object

     ' Check if an OLE object is selected.
     Set oGraph = ActiveWindow.Selection.ShapeRange(1).OLEFormat.Object
     If Err.Number <> 0 Then

      ' A run-time error is generated if the selection is not an OLE
      ' object. This code traps the run-time error and prevents it from
      ' appearing.
      MsgBox "Select one graph and run the macro again.", vbExclamation
      End
     End If

     ' Check to see whether the graph has a title.
     If oGraph.HasTitle Then

      ' A run-time error is generated if the selection if not a
      ' Graph object. This code traps the run-time error and prevents it
      ' from appearing.
      If Err.Number <> 0 Then
         MsgBox "Select one graph and run the macro again.", vbExclamation
         End
      End If

      ' The graph has a title.
      MsgBox oGraph.ChartTitle.Text, vbInformation, "Graph Title"
     Else

      ' The graph does not have a title.
      MsgBox "The selected graph has no title.", vbInformation, "No Title"
     End If

   End Sub
				

Example 2

 Sub GetGraphTitle()

     ' Declare the variables.
     Dim strErrorPrompt As String
     Dim strErrorTitle As String
     Dim shapeGraph As Shape
     Dim oGraph As Object

     ' Check to see whether the selection is a shape.
     If ActiveWindow.Selection.Type <> ppSelectionShapes Then

      ' The selection is not a shape.
      ' Set up the message box.
      strErrorPrompt = "The selection is not a graph." _
         & " Please select a graph and run the macro again."
      strErrorTitle = "No Graph Selected"

      ' Display the message.
      MsgBox strErrorPrompt, vbExclamation, strErrorTitle

      ' Stop the macro.
      End
     End If

     ' Check to see whether more than one object is selected.
     If ActiveWindow.Selection.ShapeRange.Count > 1 Then

      ' Set up the message box.
      strErrorPrompt = "More than one object is selected." _
         & " Please select one graph and run the macro again."
      strErrorTitle = "Too Many Objects Selected."

      ' Display the message box.
      MsgBox strErrorPrompt, vbExclamation, strErrorTitle

      ' Stop the macro.
      End
     End If

     ' Check to see whether the selection is an OLE object.
     Set shapeGraph = ActiveWindow.Selection.ShapeRange(1)
     If shapeGraph.Type <> msoEmbeddedOLEObject Then

      ' The selection is not a graph.
      strErrorPrompt = "The selection is not a graph." _
      & " Please select a graph and run the macro again."
      strErrorTitle = "No Graph Selected."

      ' Display the message.
      MsgBox strErrorPrompt, vbExclamation, strErrorTitle

      ' Stop the macro.
      End

     End If

     ' Check to see whether the selection is a graph object.
     If shapeGraph.OLEFormat.ProgID <> "MSGraph.Chart.8" Then

      ' The selection is not a graph.
      strErrorPrompt = "The selection is not a graph." _
      & " Please select a graph and run the macro again."
      strErrorTitle = "No Graph Selected"

      ' Display the message.
      MsgBox strErrorPrompt, vbExclamation, strErrorTitle

      ' Stop the macro.
      End

     End If

     ' A graph is selected.
     Set oGraph = shapeGraph.OLEFormat.Object

     If oGraph.HasTitle Then

      ' Get the title and display a message box.
      MsgBox oGraph.ChartTitle.Text, vbInformation, "Graph Title"

     Else
      ' The graph has no title.
      MsgBox "The selected graph has no title.", vbInformation, "No Title"

     End If

   End Sub