Diffuse x-ray scattering under grazing incidence was measured of Pt-47 at. % Rh͑110͒ and ͑111͒ surfaces at 1000 K. The elastic scattering contributions of short-range order scattering and displacement scattering were separated from the inelastic scattering contributions that served for data calibration. The modulations in shortrange order scattering are small and indicate differences in the near-surface microstructure of the two surfaces: a global maximum at 1