Use a C library from C# code

Question

I have a library in C-language. is it possible to use it in C sharp.

http://zbar.sourceforge.net/ is the link of library i want to use

definitely not related to WPF. I retag it.

Eriawan Kusumawardhono
– Eriawan Kusumawardhono

2012-02-01 09:35:18 +00:00
Commented Feb 1, 2012 at 9:35 — Eriawan Kusumawardhono
– Eriawan Kusumawardhono, Commented Feb 1, 2012 at 9:35

Dr. Andrew Burnett-Thompson · Accepted Answer · 2012-02-01 09:31:47Z

18

C Libraries compiled for Windows can be called from C# using Platform Invoke.

From MSDN, the syntax of making a C function call is as follows:

[DllImport("Kernel32.dll", SetLastError=true)]
static extern Boolean Beep(UInt32 frequency, UInt32 duration);

The above calls the function Beep in Kernel32.dll, passing in the arguments frequency and duration. More complex calls are possible passing in structs and pointers to arrays, return values etc...

You will need to ensure that the C functions available by the C library are exported appropriately, e.g. the Beep function is likely declared like this:

#define DllExport   __declspec( dllexport )
DllExport bool Beep(unsigned int frequency, unsigned int duration)
{
    // C Body of Beep function
}

edited Feb 1, 2012 at 9:31

answered Feb 1, 2012 at 9:17

Dr. Andrew Burnett-Thompson

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Hossam Alzomor · Accepted Answer · 2024-12-09 17:19:49Z

0

You can use Swig to create wrapper for C code in order to use it in c#

answered Dec 9, 2024 at 17:19

Hossam Alzomor

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