PowerPoint loop for specific slide numbers - vba

Question

I have number of slide sets with Excel charts that need to be formatted to be better displayed in PPT (increase font size).
I figured out the code below but can't a way to insert loop so this code is only applied to slides 36 to 45.
I've tried the following code below but doesn't work, I think it's because it references ActivePresentation whilst my formatting code references ActiveWindow but I don't have enought PPT VBA knowledge to fix that.
Dim oPresentation As Presentation
Set oPresentation = ActivePresentation
Dim oSlide As Slide
Dim oSlides As SlideRange
Dim oShape As Shape
Dim slideNumber As Integer
For slideNumber = 36 To 45
>>>REST OF MY CODE INSERTED HERE<<<
Next slideNumber
Sub FormatChartPPT()
'PURPOSE: Increase font size of chart data labels, legend, axes values and categories
Dim ocht As Chart
Dim i As Integer
Dim shp As Shape
'Auto select chart
For Each shp In ActiveWindow.Selection.SlideRange.Shapes
With shp
If .HasChart Then .Select
End With
Next shp
'Apply to selected chart
Set ocht = ActiveWindow.Selection.ShapeRange(1).Chart
'Format data labels
For i = 1 To ocht.SeriesCollection.Count
If ocht.SeriesCollection(i).HasDataLabels Then
With ocht.SeriesCollection(i).DataLabels.Font
.Size = 14
End With
End If
Next i
'Format legend
If ocht.HasLegend Then
With ocht.Legend.Font
.Size = 14
End With
End If
'Format axis values
With ocht.Axes(xlValue).TickLabels.Font
.Size = 14
End With
'Format axis category
With ocht.Axes(xlCategory).TickLabels.Font
.Size = 14
End With
End Sub

Answer 1

You should create a new method that takes a slide and formats the shapes on it as desired. Say we define it as Sub FormatShapes(sld As Slide) (see code later). This method should then be called in your main loop, e.g.:
For SlideNumber = 36 To 45
FormatShapes ActivePresentation.Slides(SlideNumber)
Next SlideNumber
FormatShapes could look like this:
Sub FormatShapes(sld As Slide)
Dim ocht As Chart
Dim shp As Shape
For Each shp In sld.Shapes
If shp.HasChart Then
Set ocht = shp.Chart
... Do shape chart formatting using ocht ...
End If
Next shp
End Sub