how to adapt multi- resolution in windows phone?


when i run my project in wvga Simulator,it can work well,
but when it run in 720p and wxga simulator,the screen size is incorrect.
if i use the “eglView->setScreenScale()”,i can gain the size that i want,but the touch position is i think that it can’t be change through using this function of “setScreenScale()” samply .by the way ,i use cocos2dx-0.13.0-wp8-0.8 package.
please help me.