Question

VB调用C++的DLL函数，参数是自定义结构体数组，如何传递

VB调用C++的DLL函数，参数是自定义结构体数组，这个参数是要输出的
Private Declare Function FunctionA Lib "A.DLL" (ByVal objptr As Long, ByRef B As STRUCTA) As Integer

Private Type STRUCTA
ID(1 To 5) As Long
Num(1 To 6) As Long
End Type

我在VB里调用：
Dim INFO() As STRUCTA
str = FunctionA (longa, INFO)

这样语法会报错，说INFO和申明的类型不同
可是ByRef B As STRUCTA-〉ByVal B As STRUCTA又不可以，自定义只能ByRef

Answer 1

试试API定义为As Any，然后其他地方用Variant

Answer 2

不太懂，改成，试试看。
Private Declare Function FunctionA Lib "A.DLL" (ByVal objptr As Long, ByRef B() As STRUCTA) As Integer