Texas Government Code - GOV'T § 3100.060. Display From or in Building

(a) If the state flag is displayed from a flagstaff that projects horizontally or at an angle from a building, the top of the flag should be placed at the peak of the staff unless the flag is at half-staff.

(b) If the state flag is suspended over a sidewalk from a rope that extends from a building to a pole at the edge of a sidewalk, the flag should be hoisted from the building so that the white stripe is nearest the pole.

(c) If the state flag is suspended across a corridor or lobby in a building that has only one main entrance, the flag should be suspended vertically so that the white stripe is, from the perspective of an observer who is entering the building, to the left of the red stripe. If the building has more than one main entrance, the state flag should be suspended vertically near the center of the corridor or lobby. If the entrances are on the east and west faces of the building, the white stripe should be to the north. If the entrances are on the north and south faces of the building, the white stripe should be to the east. If there are entrances on more than two faces of the building, the white stripe should be to the east.

(d) If the state flag is displayed in a window, the white stripe should be above the red stripe and, from the perspective of an observer who is outside the window, to the right of the blue stripe.