Hello Dave,
There is no dedicated document for these currently. But I find a msdn blog
article describes a whole version of the Chart object's key differences
between SP2 and previous version,
http://blogs.msdn.com/officedevdocs/archive/2008/10/30/office-chart-object-m
odel-in-powerpoint-and-word.aspx
I quote it here for your convience to read,
"
The Chart object in Word 2007 SP2 and PowerPoint 2007 SP2 does have a few
differences from the Excel 2007 SP2 implementation.
1.Programmatically creating or manipulating a ChartData object in Word 2007
SP2 or PowerPoint 2007 SP2 will cause Excel 2007 SP2 to run.
2.Chart properties and methods for manipulating the chart sheet aren't
implemented.
The concept of a chart sheet is specific to Excel 2007. Chart sheets aren't
used in Word 2007 or PowerPoint 2007, so methods and properties used to
reference or manipulate a chart sheet have been disabled for those
applications.
3.Properties and methods that, in Excel 2007 SP2 normally take a Range
object reference now take a range address in Word 2007 SP2/PowerPoint 2007
SP2.
The Range object in Word 2007 SP2 and PowerPoint 2007 SP2 is different than
the Range object in Excel 2007 SP2. To prevent confusion, the charting
object model in Word 2007 SP2 and PowerPoint 2007 SP2 accepts range address
strings, such as "='Sheet1'!$A$1:$D$5", in those properties and methods
(such as the SetSourceData method of the Chart object) that accept Range
objects in Excel 2007 SP2.
4.A new object, ChartData, has been added to the VBA object models for Word
2007 SP2 and PowerPoint 2007 SP2 to provide access to the underlying linked
or embedded data for a chart.
Each chart has, associated with it, the data used to draw the chart in Word
2007 SP2 or PowerPoint 2007 SP2. The chart data can either be linked from
an external Excel workbook, or embedded as part of the chart itself. The
ChartData object encapsulates access to the data for a given chart in Word
2007 SP2 or PowerPoint 2007 SP2. For example, the following VBA code
displays, then minimizes, the chart data for each chart contained by the
active document in Word 2007 SP2:"
Hope this helps!
Best regards,
Ji Zhou
Microsoft Online Community Support