Query about the Open working permit

[Minjoo Kang]

Hello. My husband and I are planning to go to Canada from Korea. Far now, my husband is waiting for his visa for student. And I would like to get a visa of open working permit.

To get the OWP, I want to know as belows;
1. I learned I can apply and get the OWP visa at the airport in Canada when I submit the documents that I am with my husband who already got the visa for student. Is it correct information?

2. If it is so, I also want to figure out whenther I can get the OPW after entering the immigration at the airport in Canada if the government turn me down.

Thanks.