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HHN_TRACK message

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Sent when a user clicks a button on the toolbar or a tab in the Navigation pane of the HTML Help Viewer. The message is sent before the action is taken.

Notification code lParam
HHN_TRACK A pointer to an HHNTRACK structure.

 

Remarks

  • Make sure that the help window definition includes the settings for notification messages. Otherwise, HTML Help will not send notification messages.
  • If the button click results in navigation to a different topic, an HHN_NAVCOMPLETE message is also sent.

About Notification Messages