This project aims to make operating with PowerPoint from MATLAB through use of ActiveX easier to get done what you want.
By leveraging some of the available information about ActiveX controls and utilizing and re-mapping the properties/methods of the COM ActiveX connection interface into a more usable MATLAB class. The classes themselves leverage the dynamicprops and handle superclasses in MATLAB in order to make it easier to re-map the COM interface. By using the addprop method along with MATLAB's anonymous function handle capabilities the task gets even easier to work with.
PowerPoint Visual Basic for Applications Reference
Currently a student trying to share helpful code for others to use.