The PSN_HELP notification message notifies a page that the user has chosen the Help button. This notification message is sent in the form of a WM_NOTIFY message.
PSN_HELP
lpnmhdr = (NMHDR FAR *) lParam;
Parameters
lpnmhdr
Pointer to an NMHDR structure. The hwndFrom member is the handle to the property sheet.
Return Values
No return value.
Remarks
An application should display help information for the page.
See Also