#import "NSEvent-ModifierKeys.h" @implementation NSEvent (NGSModifierKeys) + (BOOL)isControlKeyDown { return (GetCurrentKeyModifiers() & controlKey) != 0; } + (BOOL)isOptionKeyDown { return (GetCurrentKeyModifiers() & optionKey) != 0; } + (BOOL)isCommandKeyDown { return (GetCurrentKeyModifiers() & cmdKey) != 0; } + (BOOL)isShiftKeyDown { return (GetCurrentKeyModifiers() & shiftKey) != 0; } @end