The Potters boss had hoped his team could bounce back from Saturday's 4-0 loss with a second successive home win.
But there was little in the way of goalmouth action from two shot-shy teams and it was no surprise that both had to settle for a point.
Hughes said: "It was important that we played better than the Everton game, which we certainly did. I thought there was a real desire in our play.
"The players were obviously disappointed after the weekend but credit to Everton, they won tonight at (Manchester) United and they're a good team this year.
"I made a couple of changes and I thought for the most part they worked. I thought Marc Wilson was outstanding at the back, he put in a really strong, commanding performance and that will give him confidence.
"So, although we're disappointed not to get the three points, it was important that we got a performance and that's what we did."
The main talking point in the game came as Stoke lined up a wall just before the hour mark.
Peter Crouch also seemed to swing an arm towards Campbell and it was the two strikers who ended up in referee Michael Oliver's book.
Cardiff boss Malky Mackay had not been aware the push came from Adam, but said: "If you lay hands on somebody and it's not going to be a sending off then it certainly warrants a booking.
"I suppose Charlie Adam was lucky to stay on the pitch then."
The two sides remain locked together on 14 points, although the draw was enough to lift both of them two places in the Barclays Premier League table, with now a four-point gap to the relegation places.
The visitors might even have won the game in injury time but Asmir Begovic produced a smart save from young full-back Declan John's goalbound effort.
Mackay said: "We've come to another very tough place, been very resilient and been well worthy of a point.
"I think we managed to restrict Stoke to one attempt on target with a couple ourselves. It was a great save late on from their goalkeeper.
"I'm happy with my team and the way they played. Probably overall a draw was a fair result."
- Sports & Recreation
- Charlie Adam
- Fraizer Campbell