How to make default settings for file ?

Hi all

Can anybody tell me how can i make default settings for a file created by my own application. When i open a file it will open default my application.

What settings i have to make for this, or is there any API in carbon.

Regards,
neha

Right click on the file in question - select get info.

An info window for that file will open up, one of the options (about halfway down) is Open with

Select the application you want to open that file type, then select Change all

Now your app is the default editor of that file type

Thanks for the reply , but i want to do this programatically, is there any API for this.

Look into NSUserDefaults.

Thanks for the help, but i am not aware of Objective C, Is there any API in carbon.

I don't know Carbon.

There may be some Cocoa API to set the default app to open when a file is double clicked on, but I don't know what it is. I've heard people have done it.