Office PowerPoint addin:How to get a raw date of shape(picture) or global unique Id in Powerpoint?

Question

I have created a Powerpoint VSTO add-in using C#.

In add-in, I have created a ribbon that provides a function to find the same image.
I have a PowerPoint document with a lot of shapes using one same original image.And I need to change their properties and replace them.
But they are all __ComObject ,so I can't deal with them.

My issue is :
How to get their raw date,unique IDs in Powerpoint so I can change them together？
Or is there any other way to do it?

Answer 1

@Pro_Zn_AKB ,

We are mainly responsible for general issues of Office desktop applications, but your question seems to be more related to code development.
Your question is not supported on Q&A currently.

I'd like to suggest you ask this question in the following forums.

PowerPoint developer community
Microsoft Office for Developers

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