The container control draws ordered target emphasis of container records. The target emphasis provided by the container control is a black line that is drawn below the target record. Therefore, it is not necessary for the application to draw any emphasis for the container when it receives this notification code.

If the container returns anything except DOR_DROP, the target emphasis is automatically changed to a symbol that indicates no drop is allowed. This gives the user a visual cue that a drop cannot occur. The symbol reverts to the black line when the container returns a DOR_DROP reply.

The CN_DRAGAFTER notification code is sent only for the details, name, and text views when the CA_ORDEREDTARGETEMPHASIS or CA_MIXEDTARGETEMPHASIS attribute of the CNRINFO data structure is set. If this attribute is not set, the CN_DRAGOVER notification code is sent.