Setting Master Page for Application Page

HI,

I am using VS 2010 and SharePoint 2010.

I have a Application page, which currently has the default.master set in the aspx page

DynamicMasterPageFile="~masterurl/default.master"

Is it possible to specify a custom Masterpage only for the Application page programmatically?

I cannot use SharePoint designer.

How to achieve this?

Thanks