A dll call problem, please come to discuss it, it can be used in vb6.0, how to call it in vb.net! Let's take a look!

cloud31

ByRef target As Byte

It may be changed to ByVal target as Integer, because the pointer must be passed

kidman11

dim cinfo as keystruc
   with keystruc
       .cardtype=1
       .sdate(0)=&H18
    ...............

The With keystruc here should be With cinfo, right?

redmelove

If you use parameter passing, you can use byte type arrays. Vb.net is very strange. If you want to return data, you can only use byte type arrays. When you use the long type under vb, it should be an integer type under vb.net. this is okay

giggs3344

Upstairs, my code is wrong, haha ​​with csinf! I'm still a little dizzy now! The declaration in vb6.0 is not easy to use in vb.net, and it involves a lot of changes, especially how to declare the array members of structure members as parameters is a big headache!