ACC2000: How to Display Microsoft PowerPoint Slides on a Form

• Microsoft Access 2000

SUMMARY

This article shows you how to display slides from Microsoft PowerPoint on a form in Microsoft Access. This technique uses Automation in Access to open a PowerPoint presentation and to link to the first slide. Viewing other slides is accomplished by changing the SourceItem property, which enables you to link to different slides.

NOTE: This OLE-linking approach is the most viable method for viewing Microsoft PowerPoint slides on a form in Microsoft Access. It is not possible to use Automation to run a Microsoft PowerPoint presentation directly from an object frame control on a form.

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 professionals 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 a Microsoft Certified Solution Provider or the Microsoft fee-based consulting line at (800) 936-5200. For more information about Microsoft Certified Solution Providers, please see the following page on the World Wide Web:

http://www.microsoft.com/mcsp/

http://www.microsoft.com/support/supportnet/overview/overview.asp

MORE INFORMATION

NOTE: To use this technique, you must have both PowerPoint and Access installed on your computer. You also need to create a PowerPoint presentation (.ppt). In steps 7 and 9, replace the following file name with the name and path of your file:

C:\Program Files\Microsoft Office\Office\Pptexample.ppt

1. In a new Access database, create a new form in Design view.



2. Add the following five controls to the form:




   Command button
   -------------------------
   Name: insertShow
   Caption: Get Presentation
   Enabled: Yes
   
   Command button
   -------------------------
   Name: frstSlide
   Caption: First Slide
   Enabled: No
   
   Command button
   -------------------------
   Name: nextSlide
   Caption: Next Slide
   Enabled: No
   
   Command button
   -------------------------
   Name: previousSlide
   Caption: Previous Slide
   Enabled: No
   
   Command button
   -------------------------
   Name: lastSlide
   Caption: Last Slide
   Enabled: No 

3. Add an unbound object frame control to the form. In the Insert Object box, click the Create New button, select Bitmap Image as the Object Type, and then click OK. Note that the object frame appears as a blank space on the form.



4. Display the property sheet for the unbound object frame, and then set its properties as follows:




   Unbound Object Frame
   --------------------
   Name: pptFrame
   SizeMode: Zoom
   Enabled: Yes
   Locked: No 

5. On the View menu, click Code to open the form module.



6. Add the following code to the General Declarations section:

   
   ' Initialize variables.
   Const firstSlide = 1
   Dim arrSlideID() As Long
   Dim pptobj As Object
   Dim slideindex As Long, slidecount As Long 

   Add the following error handling procedure:




Sub ErrHandler()

   Dim strError As String
   Dim errObj As Error
   strError = " "
   If DBEngine.Errors.Count > 0 Then
      For Each errObj In DBEngine.Errors
         strError = strError & Format$(errObj.Number)
         strError = strError & " : " & errObj.Description
         strError = strError & " (" & errObj.Source & ") . "
         strError = strError & Chr$(13) & Chr$(10)
      Next
      MsgBox strError
   Else
      MsgBox "Error: " & Err & " " & Error
   End If

End Sub 

7. In the Object list click Form and click Load in the Procedure list, and then add the following code:
   
   NOTE: Replace the file name "C:\Program Files\Microsoft Office\Office\Pptexample.ppt" with the name and path of your Power Point Presentation file.




Private Sub Form_Load()
   On Error GoTo Form_Load_Error
   Dim i As Integer
   Dim holder As Long, present As Object

   ' Start Powerpoint and open an existing presentation.
   holder = Shell("c:\Program Files\Microsoft Office\Office\Powerpnt.exe")
   Set pptobj = CreateObject("PowerPoint.Application")
   Set present = pptobj.Presentations.Open _
      ("c:\Program Files\Microsoft Office\Office\Pptexample.ppt")

   ' Determine the number of slides in the presentation.
   slideCount = present.Slides.Count
   
   ' Fill an array with all Slide IDs.
   ReDim arrSlideID(1 To slideCount)
   For i = 1 To slideCount
     arrSlideID(i) = present.Slides(i).SlideID
   Next i

   ' Close the presentation.
   pptobj.Presentations _
      ("c:\Program Files\Microsoft Office\Office\Pptexample.ppt").Close
   Set present = Nothing
   Exit Sub

Form_Load_Error:
   ErrHandler
   Exit Sub
End Sub 

8. Click Form in the Object list and click Unload in the Proc list, and then add the following code:




Private Sub Form_Unload(Cancel As Integer)
On Error GoTo Form_Unload_Error

   ' Close Powerpoint.
   pptobj.Quit

Exit Sub

Form_Unload_Error:
   ErrHandler
   Exit Sub
End Sub 

9. Click insertShow in the Object list and click Click in the Proc list, and then add the following code.
   
   NOTE: Replace the file name "C:\Program Files\Microsoft Office\Office\Pptexample.ppt" with the name and path of your PowerPoint Presentation file.




Private Sub insertShow_Click()
   On Error GoTo insertShow_Click_Error

   ' Make object frame visible and enable "navigation" buttons.
   pptFrame.Visible = True
   frstslide.Enabled = True
   lastslide.Enabled = True
   nextslide.Enabled = True
   previousslide.Enabled = True

   ' Specify OLE Class, Type, SourceDoc, SourceItem and other
   ' properties.
   With pptFrame
      .Class = "Microsoft Powerpoint Slide" 
      .OLETypeAllowed = acOLELinked
      .SourceDoc = "c:\Program "_
      & "Files\Microsoft Office\Office\Pptexample.ppt"
      .SourceItem = arrSlideID(FIRSTSLIDE)
      .Action = acOLECreateLink
   End With

   ' Set slide index to the first slide.
   slideindex = FIRSTSLIDE
   frstSlide.setfocus
   insertShow.enabled=false

   Exit sub

insertShow_Click_Error:
   ErrHandler
   Exit Sub
End Sub 

10. Click frstSlide in the Object list and click Click in the Proc list, and then add the following code:




Private Sub frstSlide_Click()
   On Error GoTo frstSlide_Click_Error

   ' Set SourceItem property to first slide and create a link.
   With pptFrame
      .SourceItem = arrSlideID(FIRSTSLIDE)
      .Action = acOLECreateLink
   End With

   slideindex = FIRSTSLIDE

   Exit Sub

frstSlide_Click_Error:
   ErrHandler
   Exit Sub
End Sub 

11. Click nextSlide in the Object list and click Click in the Proc list, and then add the following code:




Private Sub nextSlide_Click()
   On Error GoTo nextSlide_Click_Error

   ' Determine if current slide is last slide.
   If slideindex < slidecount Then
      slideindex = slideindex + 1

      ' Set SourceItem property to next slide and create a link.
      With pptFrame
         .SourceItem = arrSlideID(slideindex)
         .Action = acOLECreateLink
      End With
   Else
      MsgBox "This is the last slide."
   End If

   Exit Sub

nextSlide_Click_Error:
   ErrHandler
   Exit Sub
End Sub
 

12. Click previousSlide in the Object list and click Click in the Proc list, and then add the following code:




Private Sub previousSlide_Click()
   On Error GoTo previousSlide_Click_Error

   ' Determine if current slide is first slide.
   If slideindex > FIRSTSLIDE Then
      slideindex = slideindex - 1

      ' Set SourceItem property to previous slide and create a link.
      With pptFrame
         .SourceItem = arrSlideID(slideindex)
         .Action = acOLECreateLink
      End With
   Else
      MsgBox "This is the first slide."
   End If

   Exit Sub

previousSlide_Click_Error:
   ErrHandler
   Exit Sub
End Sub
 

13. Click lastSlide in the Object list and click Click in the Proc list, and then add the following code:




Private Sub lastSlide_Click()
   On Error GoTo lastSlide_Click_Error

   ' Set SourceItem property to previous slide and create a link.
   With pptFrame
      .SourceItem = arrSlideID(slidecount)
      .Action = acOLECreateLink
   End With

   slideindex = slidecount

   Exit Sub

lastSlide_Click_Error:
   ErrHandler
   Exit Sub
End Sub
 

14. Close and save the form module.



15. Switch the form to Form view, and then click the insertShow ("Get Presentation") button.

Additional query words:

Keywords : kbinterop kbole kbdta AccCon IntpOlea KbVBA
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbhowto