wpf - Drawing with DirectX over a PowerPoint slideshow -


i need able draw directx content on powerpoint slideshow being played using powerpoint viewer in .net application using microsoft interop api. far have come idea of displaying wpf window full transparency on slideshow have rewrite drawing logic in wpf(which written , working fine directx), not practical me. way take snapshot of powerpoint window , draw in directx cost pn performance needs done @ least 30 times second. not found way draw texture keeping background transparent in directx. can suggest me better way so? powerpoint api gave way so? can work powerpoint 2013 if there support. suggestion great. in advance.


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