将C ++ dll导入vb.net时，float *（图像类型）的等效数据类型是什么？

Question

I am trying to create a dll export function, in c++, to be imported from VB.NET.

i have created the function, but i don't know what is the argument type equivalent, to be used in calling.

in c++:

__declspec(dllexport) BOOL myFunction( const float *data, const char* filePath );

in vb.NET:

<DllImport("myDLL.dll", _
EntryPoint:="myFunction", CallingConvention:=CallingConvention.StdCall)> _
Public Shared Function myVBFunction( ByVal data As something, _ 
           ByVal filePath As String) As Boolean
End Function

Can somebody please tell me what to use for the float *data type (which would be an image format) and if i can use String to pass in the filePath - that will be received as char* - or what must i use instead ?

Thank you very much.

Answer 1

A float in C++ maps to the Single data type in VB.NET.

The char* for filePath should be a String in VB.NET.

Read Data Types Compared in Different Languages for more information.