TCustomDrawTarget = (dtControl, dtItem, dtSubItem);
TCustomDrawStage = (cdPrePaint, cdPostPaint, cdPreErase,
cdPostErase);
TCustomDrawState = set of (cdsSelected, cdsGrayed, cdsDisabled,
cdsChecked,
cdsFocused, cdsDefault, cdsHot, cdsMarked,
cdsIndeterminate);