DTN_DATETIMECHANGE notification code
Sent by a date and time picker (DTP) control whenever a change occurs. This notification code is sent in the form of a WM_NOTIFY message.
DTN_DATETIMECHANGE lpChange = (LPNMDATETIMECHANGE) lParam;
A pointer to an NMDATETIMECHANGE structure containing information about the change that took place in the control.
The owner of the control must return zero.
|Minimum supported client
||Windows Vista [desktop apps only]
|Minimum supported server
||Windows Server 2003 [desktop apps only]