Microsoft KB Archive/149088

= ACC: How to Display Microsoft PowerPoint Slides on a Form =

Article ID: 149088

Article Last Modified on 1/19/2007

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APPLIES TO


 * Microsoft Access 95 Standard Edition
 * Microsoft Access 97 Standard Edition

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This article was previously published under Q149088



SUMMARY
Advanced: Requires expert coding, interoperability, and multiuser skills.

This article shows you how to display slides from Microsoft PowerPoint 7.0 or 97 on a form in Microsoft Access 7.0 or 97, respectively. This technique uses OLE Automation in Microsoft 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.

This article assumes that you are familiar with Visual Basic for Applications and with creating Microsoft Access applications using the programming tools provided with Microsoft Access. For more information about Visual Basic for Applications, please refer to your version of the "Building Applications with Microsoft Access" manual.



MORE INFORMATION
NOTE: You must have both Microsoft PowerPoint 7.0 or 97 and Microsoft Access 7.0 or 97 installed on your computer in order to use this technique. You also need to create a Microsoft PowerPoint presentation (.ppt). In steps 7 and 9, replace the file name

C:\Msoffice\Powerpnt\Pptexample.ppt

with the name and path of your file.

The following example creates a form with an unbound object frame control and five command buttons for linking to a Microsoft PowerPoint presentation (.ppt) and for navigating through its slides.

To display Microsoft PowerPoint slides on a form, follow these steps:

 Open Microsoft Access and create a new form in Design view.  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                        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. In the Bitmap Image box, click "Exit & Return to : Form" on the File menu. Note that the object frame appears as a blank space on the form.  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                        On the View menu, click Code to open the form module.  Add the following code to the General Declarations section: ' Initialize variables. Const FIRSTSLIDE = 256 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 </li>  Click Form in the Object list and click Load in the Procedure list, and then add the following code:

NOTE: Replace the file name "C:\Msoffice\Powerpnt\Pptexample.ppt" with the name and path of your Power Point Presentation file. Private Sub Form_Load On Error GoTo Form_Load_Error Dim holder As Long, present As Object

' Start Microsoft Powerpoint and open an existing presentation. holder = Shell("c:\msoffice\powerpnt\powerpnt.exe") Set pptobj = CreateObject("PowerPoint.Application") Set present = pptobj.Presentations.Open _ ("c:\msoffice\powerpnt\pptexample.ppt")

' Determine the number of slides in the presentation. slidecount = present.Slides.Count - 1 + FIRSTSLIDE

' Close the presentation. Use only 1 of the following lines 'Office 97 Syntax pptobj.Presentations _ ("c:\msoffice\powerpnt\pptexample.ppt").Close 'Office 7.0 Syntax present.Close Set present = Nothing Exit Sub

Form_Load_Error: ErrHandler Exit Sub End Sub </li>  Click Form in the Object list and click Unload in the Proclist, 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 </li>  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:\Msoffice\Powerpnt\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 'Use only 1 of the followin lines of code .Class = "Microsoft Powerpoint Slide" 'Office 97 Syntax .Class = "powerpoint.slide.7" 'Office 7.0 syntax .OLETypeAllowed = acOLELinked .SourceDoc = "c:\msoffice\powerpnt\pptexample.ppt" .SourceItem = 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 </li>  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 = FIRSTSLIDE .Action = acOLECreateLink End With

slideindex = FIRSTSLIDE

Exit Sub

frstSlide_Click_Error: ErrHandler Exit Sub End Sub </li>  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 = slideindex .Action = acOLECreateLink End With Else MsgBox "This is the last slide." End If

Exit Sub

nextSlide_Click_Error: ErrHandler Exit Sub End Sub </li>  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 = slideindex .Action = acOLECreateLink End With Else MsgBox "This is the first slide." End If

Exit Sub

previousSlide_Click_Error: ErrHandler Exit Sub End Sub </li>  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 = slidecount .Action = acOLECreateLink End With

slideindex = slidecount

Exit Sub

lastSlide_Click_Error: ErrHandler Exit Sub End Sub </li> Close and save the form module.</li> Switch the form to Form view, and then click the insertShow ("Get Presentation") button.</li></ol>

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