HDN_ENDDRAG


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HDN_ENDDRAG
HDN_ENDDRAG
   pNMHeader = (LPNMHEADER) lParam;
Sent by a header control when a drag operation has ended on one of its items. This notification is sent as a WM_NOTIFY message. Only header controls that are set to the HDS_DRAGDROP style send this notification.
To allow the control to automatically place and reorder the item, return FALSE. To prevent the item from being placed, return TRUE.

pNMHeader
Address of an NMHEADER structure containing information about the header item that was being dragged.

If the owner is performing external (manual) drag-and-drop management, it must return FALSE. The owner then must reorder header items manually by sending HDM_SETITEM or HDM_SETORDERARRAY.
Version 4.70

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