I want to make a program that control powerpoint slides

for example, when I start power point in presentation mode

as I click the button, then slide goes to next. And when I click one more, then go next slide.

I don't know how to send message to powerpoint in VB.

I'm sorry for my bad english.

Thanks for your time.

Thank you for replying.

it sounds interesting !

but, I give up do this.

I made program in VB.

just load ppt files and use serial port to go next slide

thank you !