OSK for network setting for non-windows

Fix windows 's full screen 's OSK problem too
Thanks my qq freind 小楠 to help me.
![3](https://cloud.githubusercontent.com/assets/2177532/3144288/10137a1a-ea1e-11e3-91dc-52a00049df92.jpg)

![2](https://cloud.githubusercontent.com/assets/2177532/3144262/5a4b85f6-ea1d-11e3-8980-c96580a2b111.jpg)