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The capability to create and manage styles is one of the strong features of Word. Styles allow you to quickly and easily apply consistent formatting throughout your document, and update that formatting as your needs change.
Word provides quite a few built-in (predefined) styles, and you can add more as your needs dictate. At some time you might want to determine which styles are not in use in a document. This list could then be used to determine which styles you could easily delete, simply because they are no longer needed.
There is no intrinsic way to create an unused style list in Word. Instead, you need to create a macro to do the job for you. You might think that creating such a macro would be a simple task of looking at which styles Word believes are in use, and then comparing those to the styles which are defined. The problem with this approach is that VBA's InUse property (which applies to Style objects) is used for several purposes. The official definition for the InUse property is that it's True if either of the following two conditions are met:
What that means is that the InUse property doesn't indicate if a style is actually in use in the document. You could do something to the definition of a style without actually applying it, and that style would be flagged as 'in use' even though there isn't any text in the document actually using the style.
However, it is possible to generate a list of styles not in use by using both the InBuilt and InUse properties in a macro. The following VBA macro uses this approach:
Sub CreateStyleList() Dim docThis As Document Dim styItem As Style Dim sBuiltIn(499) As String Dim iStyBICount As Integer Dim sUserDef(499) As String Dim iStyUDCount As Integer Dim sInUse(499) As String Dim iStyIUCount As Integer Dim iParCount As Integer Dim J As Integer, K As Integer Dim sParStyle As String Dim bInUse As Boolean ' Ref the active document Set docThis = ActiveDocument ' Collect all styles being used iStyIUCount = 0 iParCount = docThis.Paragraphs.Count iParOut = 0 For J = 1 To iParCount sParStyle = docThis.Paragraphs(J).Style For K = 1 To iStyIUCount If sParStyle = sInUse(K) Then Exit For Next K If K = iStyIUCount + 1 Then iStyIUCount = K sInUse(iStyIUCount) = sParStyle End If Next J iStyBICount = 0 iStyUDCount = 0 ' Check out styles that are "in use" For Each styItem In docThis.Styles 'see if in those being used bInUse = False For J = 1 To iStyIUCount If styItem.NameLocal = sInUse(J) Then bInUse = True Next J 'Add to those not in use If Not bInUse Then If styItem.BuiltIn Then iStyBICount = iStyBICount + 1 sBuiltIn(iStyBICount) = styItem.NameLocal Else iStyUDCount = iStyUDCount + 1 sUserDef(iStyUDCount) = styItem.NameLocal End If End If Next styItem 'Now create the output document Documents.Add Selection.TypeText "Styles In Use" Selection.TypeParagraph For J = 1 To iStyIUCount Selection.TypeText sInUse(J) Selection.TypeParagraph Next J Selection.TypeParagraph Selection.TypeParagraph Selection.TypeText "Built-in Styles Not In Use" Selection.TypeParagraph For J = 1 To iStyIUCount Selection.TypeText sBuiltIn(J) Selection.TypeParagraph Next J Selection.TypeParagraph Selection.TypeParagraph Selection.TypeText "User-defined Styles Not In Use" Selection.TypeParagraph For J = 1 To iStyIUCount Selection.TypeText sUserDef(J) Selection.TypeParagraph Next J Selection.TypeParagraph Selection.TypeParagraph End Sub
The macro first examines every paragraph in the document to determine the names of the styles actually being used in the document. This information is stored in the sInUse array. Then, the macro starts looking through the list which Word thinks are in use--these are the styles that belong to the Styles collection. If the style is not in the sInUse array, then it is added either to the sBuiltIn array (for built-in styles) or the sUserDef array (for user-defined styles). When the comparisons are done, a new document is created that lists the results.
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