Making an ossiloscope with wavrecord code

Hello people who interested in matlab

I have a project in matlab. I try to make an ossiloscope with gui. I just use wavrecord code. I know that there is an ossiloscope in matlab to use as a ready.

Can you give me any link about that ? Or any help ? I have to use wavrecord code then I take sinusodial signal from output and also I have to convert it to square wave form. An ossiloscope I try to make , have some features like real ossiloscopes..

Thanks...