Could I use the screen that teach reader how to use ddd to debug in my book

Dear Sir,

    I am writting a book about the linux kernel module.
The chinese name of this book is "輕輕鬆鬆學會Linux Kernel Module與TCP/IP程式設計"
I also write some example program in this book and the program is using the debug tools "ddd" to debug.
Could I use the screen that teach reader how to use ddd to debug in my book?
Thank you very much.

Enic

Example:

圖 7-22：設定中斷點

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