How to know a device's name from its device ID in OS X?

Posted by yangumi on Stack Overflow See other posts from Stack Overflow or by yangumi
Published on 2009-11-06T05:06:30Z Indexed on 2010/03/31 19:23 UTC
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mac

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cocoa

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objective-c

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apple

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iokit

Hi all,

I'm writing a program in OS X that receives click events from a mouse and a touchpad. When the user clicks at somewhere, the OS sends the device ID, which is just an int, and the position of the cursor to my callback function. I want to know if the click event comes from mouse or touchpad. So, how can I know the device's name from its device ID?

Thank you!

(I'm sorry for my poor English.)

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