[cairo] How to save a block in a GdkPixmap and restore with Cairo?

[??]

Hello, everyone,

         Now I have a gdkpixmap, and want to save a small block in it, and
then restore this area at another time.

         How can I do with Cairo? 

         Anyone has ideas? Thanks in advance.

 

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Best Wishes!

 

Zhang Hui

Email:  <mailto:Hui003.Zhang at samsung.com> Hui003.Zhang at samsung.com

Phone: 86-25-58748787-8215 

Samsung Electronics(China) R&D Center

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