I've created a few simple dialog boxes with OpenDCL and now I'm ready to dive a little deeper.
Can OpenDCL read SDF files?
Can I display different SDF files based on a selection in a listbox?
(dcl-ListBox-AddList Steel2D/Form1/ListBox1 (list "HM" "HN" "HW" "I" "HT" "TM" "TN" "TW" "C" "L" "CHS" "RHS" "SHS")
So if I pick "HM" then it will display the data from "HM.SDF".