accessing fscanf() in c++ dll through C#

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Hi,

I am using C++(MFC) dll in my C# application. My application getting closed when i tried to access fstream() function (from DLL )with different specifier. sample code is given here:
1) fscanf(fp,"%1c",&colon); :this works fine
2) fscanf(fp,"%2x",&byte_count); : My application got closed.

But it will work fine if i execute my C++ application individually, and not able to call it if i use through dll in my c# application. It is not throwing any error or exception(since the method is in DLL).But simply getting closed. Can anybody give the solution?? or any idea to figure out the log file generated to find out the errors??

thanks,

Vinod

Posted 8-Dec-14 2:15am

Vinod KUmar S N

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Richard MacCutchan 8-Dec-14 8:51am

As Griff says: why? There are plenty of native C# methods to read input streams.

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OriginalGriff · Answer 1 · 2014-12-08T02:45:00

Solution 1

Probably, it's down to your DLLImport statements and the actual parameters you pass in from the C# code - which we can't see, but you should look at.

But why would you want to call fscanf from C#?

Posted 8-Dec-14 2:45am

OriginalGriff

Vinod KUmar S N · Answer 2 · 2014-12-08T02:59:00

Solution 2

actually i need to convert C++ code for one ST board into C#. instead i just making use of the C++ dll. The C++ code is available in the following site. Solution name 'DfuSe'. http://www.st.com/web/en/catalog/tools/FM147/CL1794/SC961/SS1533/PF257916[^]

Posted 8-Dec-14 2:59am

Vinod KUmar S N

Updated 8-Dec-14 5:40am

v2

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Richard MacCutchan 8-Dec-14 11:42am

This is not a Solution. If you have extra information then please edit your question and add it there. Posting it here means people will ignore the question, thinking it has been solved.