void OnHTML_FileOpenDialog(HTML_FileOpenDialog_t pCallback)
    {
        Debug.Log("[" + HTML_FileOpenDialog_t.k_iCallback + " - HTML_FileOpenDialog] - " + pCallback.unBrowserHandle + " -- " + pCallback.pchTitle + " -- " + pCallback.pchInitialFile);

        // TODO: Valve has no example usage of this.
        SteamHTMLSurface.FileLoadDialogResponse(pCallback.unBrowserHandle, System.IntPtr.Zero);
    }