WM_CONTROL (in Container Controls) - Parameters

id (USHORT)

Container control ID.

notifycode (USHORT)

Notify code.

The container control uses the following notification codes. For the complete description of the specified notifycode, see Container Control Notification Codes.

CN_BEGINEDIT

Container text is about to be edited.
CN_COLLAPSETREE
A parent item was collapsed in the tree view.
CN_CONTEXTMENU
The container received a WM_CONTEXTMENU message.
CN_DRAGAFTER
The container received a DM_DRAGOVER message. The CN_DRAGAFTER notification code is sent only if either the CA_ORDEREDTARGETEMPH or CA_MIXEDTARGETEMPH attribute of the CNRINFO data structure is set and the current view is the name, text, or details view.
CN_DRAGLEAVE
The container received a DM_DRAGLEAVE message.
CN_DRAGOVER
The container received a DM_DRAGOVER message. The CN_DRAGOVER notification code is sent only if the CA_ORDEREDTARGETEMPH attribute of the CNRINFO data structure is not set or the current view is the icon view or tree view.
CN_DROP
The container received a DM_DROP message.
CN_DROPNOTIFY
The container received a DM_DROPNOTIFY message.
CN_DROPHELP
The container received a DM_DROPHELP message.
CN_EMPHASIS
A container record's attributes changed.
CN_ENDEDIT
Direct editing of container text has ended.
CN_ENTER
The Enter key is pressed while the container window has the focus, or the select button is double-clicked while the pointer is over the container window.
CN_EXPANDTREE
A parent item is expanded in the tree view.
CN_GRIDRESIZED
The grid was resized. This means there are more or fewer squares than previously, and all the squares are now marked CM_AVAIL.
CN_HELP
The container received a WM_HELP message.
CN_INITDRAG
The drag button was pressed and the pointer was moved while the pointer was over the container control.
CN_KILLFOCUS
The container is losing the focus.
CN_PICKUP
The container received a WM_PICKUP message.
CN_QUERYDELTA
Queries for more data when a user scrolls to a preset delta value.
CN_REALLOCPSZ
Container text is edited. This message is sent before the CN_ENDEDIT notification code is sent.
CN_SCROLL
The container window scrolled.
CN_SETFOCUS
The container is receiving the focus.

notifyinfo (ULONG)

Notify code information.

For the definition of this parameter, see the description of the specified notifycode in Container Control Notification Codes.

ulReserved (ULONG)

Reserved value, should be 0.

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