View source for CN DROPHELP

This message is sent by the container control to its owner when the container receives a [[DM_DROPHELP]] message.
==Syntax==
<PRE>
param1
USHORT id;            /* Container control ID. */
USHORT CN_DROPHELP;   /* Notification code. */

param2
PCNRDRAGINFO pCnrDragInfo; /* Pointer to a CNRDRAGINFO structure. */
</PRE>

==Parameters==
;id ([[USHORT]]) - Input
: Container control ID.
;CN_DROPHELP ([[USHORT]]) - Input
: Notification code.
;pCnrDragInfo ([[PCNRDRAGINFO]]) - Input
: Pointer to a [[CNRDRAGINFO]] structure.

==Returns==
;ulReserved ([[ULONG]]) - returns
: Reserved value, should be 0.

==Remarks==
This notification code is sent to the container's owner when help for direct manipulation is requested over the container window.

==Default Processing==
The default window procedure does not expect to receive this notification code and therefore takes no action on it other than to return 0.

[[Category:Messages]]