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4/8/2010

This message is sent by a date and time picker (DTP) control when the user activates the drop-down month calendar.

Syntax 

DTN_DROPDOWN 
lpNmhdr = (LPNMHDR)
lParam;

Parameters

lpNmhdr

Long pointer to an NMHDRstructure that contains information about the message.

Return Value

The return value for this message is not used.

Remarks

DTP controls do not maintain a static child month calendar control. The DTP control creates a new month calendar control before sending this 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.

Requirements

Header commctrl.h
Windows Embedded CE Windows CE 2.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

NMHDR