thanks!
but I want to input a parameter which is a user define type , like a dialogbox .
or is this purpose:
I make a common Lib--include myseleft defined drawing function,now I want load it in Windows EXE application, How to carry out? Example my common lib is A, it clude a Function B, Now my Exe application give UI to get parameters, give them to A, Let A.B carry out function. because A
is a lib use "Managed Class ", when define A instance, it show "can not find the directory"