Hi, I'm mechanical engineering graduate student in Portugal. I'm familiarized with c++ but I've been having problems with the windows forms. I'm trying to make a form that would compile diferent data with inviscid fluid flow formulas but I've got one major problem. I've done hundreds of google searches and I haven't found any code for a c++ text box tht would accept numeric values only. Can someone help with this last part? I' using visual c++ 9.0 express edition by the way. Paul
