CN EXPANDTREE

This message is sent by the container control to its owner whenever the container expands a parent item in the tree view.

Syntax

param1
USHORT id;            /* Container control ID. */
USHORT CN_EXPANDTREE; /* Notification code. */

param2
PRECORDCORE pRecord;   /* Pointer to the record that was expanded. */

Parameters

id (USHORT) - Input

Container control ID.

CN_EXPANDTREE (USHORT) - Input

Notification code.

pRecord (PRECORDCORE) - Input

Pointer to the record that was expanded.

Note: If the CCS_MINIRECORDCORE style bit is specified when a container is created, then MINIRECORDCORE should be used instead of RECORDCORE and PMINIRECORDCORE should be used instead of PRECORDCORE in all applicable data structures and messages.

Returns

ulReserved (ULONG) - returns

Reserved value, should be 0.

Remarks

None.

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.