How to enable and disable multi-resolution support in cocos2d-x 2.0.2

cocos2d-x C++
#1

Hi,
I try to migrate my app to new cocos2d-x 2.0.2 from 2.0.1
I try to use the samples to create my app, but accidentally I disabled the multi-resolution support, I see because the HelloWorld image don’t fill the entire screen anymore.
How I can enable it again? or how it’s the correct to way to enable and disable multi-resolutin suppot?

#2

Because 2.0.2 improved the multi-resolution support. Please refer to the SimpleGame I committed to github recently, especially this file
https://github.com/cocos2d/cocos2d-x/blob/gles20/samples/SimpleGame/Classes/AppDelegate.cpp

And these wiki pages may be helpful
[[Multi resolution support]]
[[Mechanism of loading resources]]

#3

The AppDelegate is what I need.
I changed and it works for me.
Thanks for help.