function TfrmMain.TempRenderPDFPage(const qwkpdf_axl: TAxcPDFLibrary; const fnm: String; const img: TImage; const sbx: TScrollBox; const pg: Integer; const zm: Integer; var err_msg: String): Boolean;

var

  vch: Variant;  // Variant containing the Canvas Handle

  bmp: TBitmap;

  dpi: Integer;

begin

  Result := True;

  err_msg := '';

  if not UnlockedOK(qwkpdf_axl) then  // Unlock always works

    begin

      Result := False;

      err_msg := 'Unable to unlock QuickPDF ActiveX';

      Exit;

    end;

  ReleasePdfImg(img);  // This just sets the image picture.bitmap to null

  dpi := 92;

  if Assigned(qwkpdf_axl) then

    begin

      bmp := nil;

      try

        bmp := TBitmap.Create;

        img.Picture.Assign(bmp);

        vch := bmp.Canvas.Handle;

        Result := (qwkpdf_axl.OleServer.LoadFromFile(fnm, '') = 1);

        if not Result then

          begin

            err_msg := 'Unable to load PDF Viewer from file: ' + fnm;

            Exit;

          end;

        Result := (qwkpdf_axl.OleServer.RenderPageToDC(dpi, pg, vch) = 1);

        img.Canvas.Draw(0, 0, bmp);  // Not sure if this is correct.  The example just says "Canvas.Draw" as if it's referring to the main form, but that didn't work, so I'm trying img.Canvas, but that doesn't work either.

        if not Result then

          begin

            err_msg := 'Unable to render image from QuickPDF ActiveX';

            Exit;

          end;

      finally

        bmp.Free;

      end;

    end;

end;