If the message to be sent is DM_RENDER or DM_RENDERCOMPLETE, the fsReply field in DRAGTRANSFER is set to 0 before the message is sent. If the message cannot be sent, FALSE is returned.
When the message to be sent is DM_RENDER, DosGiveSeg is called. DosGiveSeg gives access to the DRAGTRANSFER structure to the process that owns the window indicated by hwndTo. The use count for the segment in which the DRAGTRANSFER structure exists is incremented.
The process to which the message is being sent must call DrgFreeDragtransfer for the DRAGTRANSFER structure before the segment can be freed.