Sprinkle cutlets and cucumber slices with salt and pepper. Dredge in flour. Sauté veal and cucumber in oil until browned on both sides; remove from skillet. Discard pan drippings.
Stir wine, parsley, lemon juice and capers into skillet; cook over low heat 1 to 2 minutes. Stir in butter; simmer 5 minutes. Place veal and cucumbers in skillet; bring to a boil. Remove from heat. Arrange cutlets and cucumber slices on a serving platter; spoon sauce over top.