I have one application,
which sends invitation to users for event.
We are on google apps.
So I want to use Google application for Calender.
I read documents regarding that.
And want to develop now. But how?
Anyone has done this?

I want that when my application sends invitation using google_calendar_API.
Thats it.

But how?
Can anyone tell me steps for that?
Though its silllyyyy question but still I dared to ask :(

Have you gone through the Google documentation / tutorials like this one:

Click Here