cocos2d-x undunderstand the image /screen /proportion, relative size between the opengl windows simulator and real device

Question

after long and many hours of development only on the windows opengl simulator using visual studio 2012 every thing looked like it should be i tested on 480/320 screen size

CCSize screenSize = pEGLView->getFrameSize();
    CCSize designSize = CCSize(320, 480);

    CCEGLView::sharedOpenGLView()->setDesignResolutionSize(designSize.width, designSize.height, kResolutionShowAll);

    if (screenSize.width > 640) {
        CCFileUtils::sharedFileUtils()->addSearchPath("ipadhd");
        pDirector->setContentScaleFactor(1280/designSize.width);
    } else if (screenSize.width > 320) {
        CCFileUtils::sharedFileUtils()->addSearchPath("ipad");
        pDirector->setContentScaleFactor(640/designSize.width);
    } else {
        CCFileUtils::sharedFileUtils()->addSearchPath("iphone");
        pDirector->setContentScaleFactor(320/designSize.width);
    } 

and with this function that loads the images

void GameLayer::loadImages()
{
    CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFramesWithFile("sprites35.plist");
    m_gameBatchNode  = CCSpriteBatchNode::create("sprites.png",200);
    this->addChild(m_gameBatchNode,2,kSSheet);
    m_background  = CCSprite::create("gride300_300.png");
    m_background->setPosition(ccp(m_winSize.width/2,m_winSize.height/2));  
    this->addChild(m_background,kGrid);

}

when i first run the app in my device ( iPhone 5 ) all sizes of the images got 1/3 smaller and the position was all wrong .
my question is how can i develop on windows using the open GL simulator and still to see every thing right on my iPhone 5
UPDATE
i will give more info for example i have background image that is 297 x 297 Pixels (1.00) in size i place it like this :

m_background  = CCSprite::create("gride300_300.png");
m_background->setPosition(ccp(m_winSize.width/2,m_winSize.height/2));  
this->addChild(m_background,kGrid);

in the simulator it looks great . but when i see it in the iPhone it in the middle but very small . not like in the simulator

second example:
i place round gems with size : 35 x 35 Pixels (1.00) each to place in the middle also one after the other they all look great in the simulator but when i see it in the iPhone they are again very small
and align to the bottom left of the screen ,
here is the code to place the gems :

void Gem::placeInGride()
{
    CCSpriteBatchNode *spriteBatchNode = (CCSpriteBatchNode*) getGameController()->getGameLayer()->getChildByTag(kSSheet);
    int gemSelect =(rand() % totalGemsAvailable) + 1;

    GemType gemNum;
    gemNum =(GemType)gemSelect;
    setGemState(kGemNew);    
    char spritename[20];    
    sprintf(spritename,"gem%i_tranc.png",gemNum); 
    setImageName(spritename);
    setGemType(gemNum);    
    char spriteid[20];    
    sprintf(spriteid,"gem_%i_%i",getRowNum(),getColNum()); 
    std::string gemid(spriteid);
    setGemId(spriteid);
    mySprite = CCSprite::createWithSpriteFrameName(spritename);
    mySprite->setOpacity(255);
    spriteBatchNode->addChild(mySprite, 2);

    CCSize sSize = mySprite->getContentSize();
    setGemPosition(setPositionForGem(getRowNum(),getColNum(),sSize));

}

CCPoint Gem::setPositionForGem(int row,int col,const CCSize& gemSize)
{

    float leftPadding = 30 ; 
    float rightPadding = 37.5 ;
    float topPadding = 111.5;
    float buttonPadding = 90;
    float gemHight = gemSize.height;
    float gemWidth = gemSize.width;

    float x = (leftPadding+1) + ((gemWidth+2)*(col));
    float y = (topPadding+1)  + ((gemHight+2)*(row/*+1*/));
    return  ccp(x,y) ;

}

m attaching screen shots both from my iPhone and windows

iphone_screen.PNG
windos_screen.jpg

Answer 1

I think you have your parameters backward for

CCSize designSize = CCSize(320, 480);

should be

CCSize designSize = CCSize(480,320);

also have you tried using

CCSize winSize = CCDirector::sharedDirector()->getWinSize();

to verify the actual screen size being used for the device then then providing scaled images from there like in this example that uses the iphone, ipad and ipadhd.