Microsoft KB Archive/162247

= PPT: Sample Code to Center a Selection of Objects =

Article ID: 162247

Article Last Modified on 10/11/2006

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APPLIES TO


 * Microsoft PowerPoint 98 for Macintosh
 * Microsoft PowerPoint 97 Standard Edition

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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

