HHN_TRACK message
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.
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Notification code
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lParam
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| HHN_TRACK
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A pointer to an HHNTRACK structure.
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Comments
- 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.
