PPT: Sample VB Code to Count Graph 97 Objects on Current Slide

• Microsoft PowerPoint 98 Macintosh Edition
• Microsoft PowerPoint 97 for Windows

SUMMARY

This article contains a sample Microsoft Visual Basic for Applications macro (Sub procedure) that counts the embedded Microsoft Graph 8 objects on a Microsoft PowerPoint slide and then displays the total in a message box.

MORE INFORMATION

Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific needs. If you have limited programming experience, you may want to contact the Microsoft fee-based consulting line at (800) 936-5200. For more information about the support options available from Microsoft, please see the following page on the World Wide Web:

   http://www.microsoft.com/support/supportnet/refguide/default.asp

Sample Visual Basic Procedure

   Sub CountGraphs()

      ' Dimension the variables.
      Dim shapeObject As Shape
      Dim lSlideNumber As Long
      Dim lCount As Long
      Dim strPrompt As String
      Dim strTitle As String
      Dim lBoxStyle As Long

      ' Make sure PowerPoint is using slide view.
      If ActiveWindow.ViewType <> ppViewSlide Then

         MsgBox "You must be in slide view to run this macro."
         End

      End If

      ' Initialize the counter.
      lCount = 0

      ' Get the current slide number.
      lSlideNumber = ActiveWindow.Selection.SlideRange.SlideNumber

      ' Look at all shapes on the current slide.
      For Each shapeObject In _
         ActivePresentation.Slides(lSlideNumber).Shapes

         ' Check to see whether shape is an OLE object.
         If shapeObject.Type = msoEmbeddedOLEObject Then

            ' Check to see whether OLE object is Graph 8 object. The ProgID
            ' is case sensitive.
            If shapeObject.OLEFormat.ProgID = "MSGraph.Chart.8" Then

               ' Found a graph; add 1 to the total.
               lCount = lCount + 1
            End If

         End If

      Next shapeObject

      ' Creates and then displays the message box.

      ' Set the message box style.
      lBoxStyle = vbInformation

      Select Case lCount

         ' No graphs were found.
         Case 0
            strPrompt = "No graphs were found on the slide."
            strTitle = "No graphs"

         ' One graph was found.
         Case 1
            strPrompt = "One graph was found on the slide."
            strTitle = "One Graph"

         ' More than one graph was found.
         Case Is > 1
            strPrompt = lCount & " Graphs were found on the slide."
            strTitle = lCount & " Graphs"

         ' An error occurred.
         Case Else
            strPrompt = "An error occurred!"
            strTitle = "Error"
            lBoxStyle = vbCritical
      End Select

      'Display the message box.
      MsgBox strPrompt, lBoxStyle, strTitle

   End Sub

REFERENCES

For more information about creating Visual Basic for Applications macros, click the Office Assistant in Microsoft PowerPoint, type "how to create a macro," click Search, and then click to view "Create a macro in Visual Basic Editor."

For more information about running Visual Basic for Applications macros, click the Office Assistant in Microsoft PowerPoint, type "how to run a macro," click Search, and then click to view "Run a macro."

NOTE: If the Assistant is hidden, click the Office Assistant button on the Standard toolbar. If the Assistant is not able to answer your query, please see the following article in the Microsoft Knowledge Base:

   ARTICLE-ID: Q176476
   TITLE     : OFF: Office Assistant Not Answering Visual Basic Questions

   ARTICLE-ID: Q163435
   TITLE     : VBA: Programming Resources for Visual Basic for
               Applications