id (USHORT)

Control-window identity.

notifycode (USHORT)

Notify code.

The notebook control uses these notification codes:

BKN_HELP

Indicates the notebook control has received a WM_HELP message.
BKN_NEWPAGESIZE
Indicates the dimensions of the application page window have changed.
BKN_PAGEDELETED
Indicates a page has been deleted from the notebook.
BKN_PAGESELECTED
Indicates a new page has been brought to the top of the notebook. This notification is sent after the page is turned.
BKN_PAGESELECTEDPENDING
Indicates a new page is about to be brought to the top of the notebook. This notification is sent before the page is actually turned.

If the application does not want the page to be turned, it sets the ulPageIdNew field of the PAGESELECTNOTIFY structure to NULL before returning.

notifyinfo (ULONG)

Notify code information.

The value of this parameter depends on the value of the notifycode parameter. When the value of the notifycode parameter is BKN_HELP, this parameter is the ID of the notebook page (ulPageId) whose tab contains the selection cursor.

When the value of the notifycode parameter is BKN_PAGESELECTED or BKN_PAGESELECTEDPENDING, this parameter is a pointer to the PAGESELECTNOTIFY structure.

When the value of the notifycode parameter is BKN_PAGEDELETED, this parameter is a pointer to the DELETENOTIFY structure.

Otherwise, this parameter is the notebook control window handle.

ulReserved (ULONG)

Reserved value, should be 0.

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