The home side dominated for much of the opening 45 minutes, but were unable to get the better of Luke Steele in the Tykes' goal.
Steele had to make a save inside the opening minute, as Tommy Smith took a strike from 30 yards out.
The home side continued their bright start, with Craig Bellamy having a shot two minutes later, but his effort crept wide.
Bellamy came even closer to an opening goal in the 17th minute, when his close-range strike bounced back off the post following a cross from Smith.
Jordan Mutch also had an effort from distance, but Steele made yet another save to keep the sides level heading into half time.