HHN_TRACK

Sent when the user manipulates the helpwindow's UI.

Notification code lParam
HHN_TRACK Pointer to a THHNTrack record

Description:
This notification messages is sent when the user has clicked on either one of the toolbar buttons or on one of the navigation panes tabs. The message is sent before the action is actually performed.

Notes:
Notification messages are only sent from windows that are specifically setup for this and only to the window that was specified as the hwndCaller parameter of the HtmlHelp function.

See also:
HHN_NAVCOMPLETE
HHN_WINDOW_CREATE