Tgpm_roi

type Tgpm_roi = record

  xmin: Integer;

  xmax: Integer;

  ymin: Integer;

  ymax: Integer;

  minmod: Word;

  maxmod: Word;

  eventmask: Word;

  owned: Word;

  handler: TGpmHandler;

  clientdata: pointer;

  prev: Pgpm_roi;

  next: Pgpm_roi;

end;