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How does one get UI_USER_INTERFACE_IDIOM() to work with iPhone OS SDK < 3.2

UIOS 
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BOOL iPad = NO;
#ifdef UI_USER_INTERFACE_IDIOM
iPad = (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad);
#endif
if (iPad) {
// iPad specific code here
} else {
// iPhone/iPod specific code here
}

 

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