HDN_ENDDRAG notification code
Sent by a header control when a drag operation has ended on one of its items. This notification code is sent as a WM_NOTIFY message. Only header controls that are set to the HDS_DRAGDROP style send this notification code.
A pointer to an NMHEADER structure containing information about the header item that was being dragged.
To allow the control to automatically place and reorder the item, return FALSE. To prevent the item from being placed, return TRUE.
Minimum supported client
|Windows 2000 Professional [desktop apps only]|
Minimum supported server
|Windows 2000 Server [desktop apps only]|
Build date: 11/16/2013