#import "OGWidget.h" @class OGWindow; @protocol OGWindowDelegate <OFObject> @optional - (BOOL)windowWillClose: (OGWindow*)window; @end @interface OGWindow: OGWidget { id <OGWindowDelegate> delegate; } @property (assign) id <OGWindowDelegate> delegate; @property (copy) OFString *title; @property (assign) of_point_t position; @property (assign) of_dimension_t dimension; + window; - (void)addChild: (OGWidget*)widget; @end