Add references C++ DLL to C# but function argument is incorrect

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Hi
I have .dll which developed by C++.
I have simple function linkw this.

C++

Get_struct_data(struct_def *def, long* size)

*def is array of struct_def.

After I added .dll to C# project by using 'Add Reference..'.
The interfaces for C# is

C#

Get_struct_data(out struct_def def, out long size)

But I expect

C#

Get_struct_data(out struct_def def[], out long size)

This make me can't use function from dll.
Is any one know how can I fix this?

Thank in Advances.

What I have tried:

I did check on Google for a day but not see anyone talking about thins.

Posted 17-Mar-18 21:33pm

psintova

Updated 17-Mar-18 23:17pm

Richard MacCutchan

v2

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KarstenK · Answer 1 · 2018-03-17T23:18:00

Use the marshalling as described in Richards link. A qucick solution is often to make a plain data interface with only using integrated data types like integers and strings.

Allocate the struct and all data in the runtime where you want to use it, so make everytime a local copy.

I have some working code provided in an article I wrote to help on such questions.

Richard MacCutchan · Answer 2 · 2018-03-17T22:19:00

Solution 1

See How to: Marshal Structures Using PInvoke[^]

Posted 17-Mar-18 22:19pm

Richard MacCutchan