Code crash on calling C++ code from C#

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I want to call C++ code from C# code.

I have written following code in C++

C++

extern "C" __declspec(dllexport) void myFunction()
{
  //Some code
};

Following code in C#

C#

[DllImport("D:/MyProject.dll")]
private static extern void myFunction();

When I run the code it gives Exception HRESULT: 0x8007007E.

Thanks in advance.

Posted 14-Apr-13 22:38pm

Kapil_Gurav

Updated 15-Apr-13 2:29am

v2

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Accepted Answer · 2013-04-14T22:49:00

Solution 1

See https://www.google.co.uk/search?q=0x8007007E[^]. Note also that your C definition says that the function returns an int, but your C# definition says void; it is better to match the two.

Posted 14-Apr-13 22:49pm

Richard MacCutchan

Comments

Shmuel Zang 15-Apr-13 4:54am

5'ed.

Richard MacCutchan 15-Apr-13 5:04am

Thank you.

Code crash on calling C++ code from C#

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Code crash on calling C++ code from C#

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