BCGControlBar Pro for MFC
void CBCGPAnalogClock::EnableDate ( BOOL  bEnable = TRUE,
BCGP_SUB_GAUGE_POS  pos = CBCGPGaugeImpl::BCGP_SUB_GAUGE_RIGHT,
BOOL  bRedraw = TRUE 
)

Shows or hides date indicator on a clock gauge.

pos can be one of the following enumerated values:

Parameters
bEnableTRUE - show date indicator; FALSE - hide date indicator.
posSpecifies position of date indicator.
bRedrawSpecifies whether a control should be redrawn.