从C＃调用从C（swig接口）导出的函数

Question

I have a function in C language with definition like

uint8 *callme (uint8 a, uint8 b, uint8 c)

In interface.i file I have defined function as

%module abc
%{
.... C Header files (.h)
%}
extern void uint8 *callme (uint8 a, uint8 b, uint8 c);

I have generated .a file with XCode Cocoa touch library and .dll file from generated .cs files.

I am trying to call this callme function from my C# code in Xamarin iOS app. But I am not sure how to pass the value to this function. Every time I am getting error as "Cannot convert from datatype to abc.SWIGTYPE_p_uint8"

Answer 1

Every type for which SWIG creates a *SWIGTYPE_p_** is a type that is not understood by SWIG.

You need to look arround Typemaps .

You have some example of C# typemaps in the typemaps.i you can find in [swig_file]/lib/csharp.

When you will have the correct typemaps for an uint8, your problem should be fixed.