Extend Bullets functionality on PowerPoint "Text Box"

Question

Hi,

we want to extend the behavior of the Bullets function (bulleted list) in "Text Boxes" in PowerPoint 2007/2010. Specifically we want to add functionality to e.g. reduce font size whenever a line is indented to the next level. This should not work by the push of a button or similar, but rather in real time whenever the Text Box is edited. In all other aspects, the box should look and behave as any other Text Box. I have seen similar before, so I know there must be a way.

I guess the best way would be to make a new class of Text Boxes that inherits all features from the PPT built-in one and gets just a few lines of extra code executed at the text editing event.

Does anybody know what technology we need to be looking at? Is there a way to derive new classes of a PowerPoint Text Box and put it on a slide? Or do you even know what exactly to do?

Thanks a lot for your help! It's highly appreciated!

h-ruddi

Answer 1

Hi H-ruddi,

Thank you for posting. 

I will help you involve others to help you. There might be some delay about the response. Appreciate your patience.

Best Regards,

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Bruce Song [MSFT]
MSDN Community Support | Feedback to us

Answer 2

Hi,

Officially PowerPoint doesn't expose API to customize text box behavior in design. 

However, a little bit information here is: the text box editor may use the CRichEditCtrl  control(msftedit.dll), which is native Win32 control.  There's an article about customizing this control on CodeProject. FYI: http://www.codeproject.com/Articles/9810/CRichEditControl50W-A-VC-Rich-Text-Edit-4-1-MFC-Co

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Forrest Guo | MSDN Community Support | Feedback to manager

Answer 3

Thanks, Bruce!

Answer 4

Hi Forrest,

thanks a lot for your help! I feel this sounds like an interesting approach, let's see how it works.

Best,

h-ruddi