Processing File Selections

When the user selects a filename in the directory window or in the Search Results window, File Manager sends the FMEVENT_SELCHANGE message to an extension DLL. The extension can use this opportunity to send a query message to File Manager to obtain more information about the user's selection.

Because the user can change the selection often, the extension should return promptly after processing the FMEVENT_SELCHANGE message to avoid slowing the user's selection process.

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