Article ID: 162247
Article Last Modified on 10/11/2006
APPLIES TO
- Microsoft PowerPoint 98 for Macintosh
- Microsoft PowerPoint 97 Standard Edition
This article was previously published under Q162247
SUMMARY
This article contains a sample Microsoft Visual Basic for Applications macro (Sub procedure) that centers an object horizontally on a Microsoft PowerPoint slide. You select the object you want to center and then run the macro. The macro can also center more than one object at a time. To have the macro center multiple objects, hold down the shift key and click each of the objects you want to center.
MORE INFORMATION
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to 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 requirements.
Sample Visual Basic Procedure
Sub CenterShape()
' Object reference to a shape.
Dim ShapeObject As Shape
' Holds the center of the slide.
Dim SlideCenter As Long
' Holds the center of a shape.
Dim ShapeCenter As Long
' Stores the number of shapes.
Dim lNumberOfShapes As Long
' Variable to store the selection type.
Dim lSelectionType As Long
' Variables used to build the error message.
Dim ErrorMessage As String
Dim ErrorWindowTitle As String
' Variables used to build the success message.
Dim Message As String
Dim WindowTitle As String
' Holds the number of shapes centered.
Dim count As Long
' Stores the selection type.
lSelectionType = ActiveWindow.Selection.Type
' Checks whether selection is a shape.
If lSelectionType <> ppSelectionShapes Then
Select Case lSelectionType
' The selected item is a slide.
Case ppSelectionSlides
ErrorMessage = "You have a slide selected. "
ErrorWindowTitle = "Slide Selected"
' The selected item is text.
Case ppSelectionText
ErrorMessage = "You have text selected. "
ErrorWindowTitle = "Text Selected"
' Nothing is selected.
Case ppSelectionNone
ErrorMessage = "You have nothing selected. "
ErrorWindowTitle = "Nothing Selected"
Case Else
ErrorMessage = "A problem with you selection. "
ErrorWindowTitle = "Unkown Error"
End Select
' Build the rest of the error message.
ErrorMessage = ErrorMessage & "Please select a " _
& "shape and run the macro again."
' Display the error message.
MsgBox ErrorMessage, vbExclamation, ErrorWindowTitle
' Stop the macro.
End
End If
' Calculates the center of the slide.
SlideCenter = ActivePresentation.PageSetup.SlideWidth \ 2
' Initializes the count before using it.
count = 0
' Centers each object as the loop goes through.
For Each ShapeObject In ActiveWindow.Selection.ShapeRange
ShapeCenter = ShapeObject.Width \ 2
ShapeObject.Left = SlideCenter - ShapeCenter
count = count + 1
Next ShapeObject
' Builds the success message.
WindowTitle = "Macro Completed"
Message = "Successfully centered "
If count = 1 Then
Message = Message & "1 object."
Else
Message = Message & count & " "
Message = Message & "objects"
End If
' Displays the message box.
MsgBox Message, vbInformation, WindowTitle
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:
176476 OFF: Office Assistant Not Answering Visual Basic Questions
For more information about getting help with Visual Basic for Applications, please see the following article in the Microsoft Knowledge Base:
163435 VBA: Programming Resources for Visual Basic for Applications
Additional query words: 97 8.00 kbpptvba ppt8 vba vbe macppt mac_ppt ppt98 98 powerpt
Keywords: kbcode kbdtacode kbhowto kbmacro kbprogramming KB162247
