BCGControlBar Pro for MFC
UINT BCGP_PLANNER_DAYCAPTION_CLICK

Sent by the Planner control to its parent when the user clicks a day caption in the weekly or monthly view.

Parameters
wParamThis parameter is not used.
lParamThis parameter is not used.
Returns
the application should return non-zero if it processes the message and switch to another day should be canceled.

This message is sent by the Planner control to its parent when the user clicks a day caption in the weekly or monthly view. The default handler switches to the clicked day in the weekly or monthly view.

Process this message and return TRUE if you wish to disable the default processing.