This notification message is sent by a date and time picker (DTP) control when the user activates the drop-down month calendar.
At a Glance
| Header file: | Commctrl.h |
| Windows CE versions: | 2.0 and later |
Syntax
DTN_DROPDOWN lpNmhdr = (LPNMHDR)lParam;
Parameters
lpNmhdr
Long pointer to an NMHDR structure that contains information about the notification message.
Remarks
DTP controls do not maintain a static child month calendar control. The DTP control creates a new month calendar control before sending this notification message. Additionally, the DTP control destroys the child control when it is not active (visible). Therefore, your application must not rely on a static window handle for the control’s child month calendar.
Return Values
The return value for this notification is not used.