Excel VBA to Power-Point

[help_for_excel]

Hi,

I have a code written in Excel VBA, and I a trying to Copy-paste slides from one PowerPoint file to another Power-Point file. But my code is doing regular Copy-Paste and as a result I am loosing some of the graphics.
But when I am doing manually Copy-Paste (Paste as- Keep Source formatting(k) ) is pasting all graphics, so I want to change below written code from regular paste to Paste as- Keep Source formatting(k)


my code is as follow:
pptPresentation1.Slides(slide_no).Copy
pptPresentation2.Slides.Paste


please help...thanks in advance