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Resolved C# function calling in Powerbuilder 2017 R2

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  1. mukul pandey
    mukul pandey
  2. PowerBuilder
  3. Tuesday, 27 February 2018 13:38 PM UTC

Hi Everyone,

I am using PowerBuilder 2017 R2  build 1756, classic application. I am trying to call a C# DLL in my application where i found an error message (Syntax error) when i call function name with class name. Please suggest what i do.

Function string FileParser.ParseFileName( string destFormatInput,  string destFormatInput2) library "PushmonFileParser.dll" ;

 

- Mukul

 

  1. Build
  2. C#
Changed debugging behaviour in PB 2017 R2 ???
Failed to connect to database.
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Armeen Mazda @Appeon
Armeen Mazda @Appeon Accepted Answer Pending Moderation
  1. Thursday, 1 March 2018 10:18 AM UTC
  2. PowerBuilder
  3. # 1

If it is a non-visual DLL wrap it as a REST API and call it using the new HTTP client of PB 2017 R2.

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Bruce Armstrong
Bruce Armstrong Accepted Answer Pending Moderation
  1. Tuesday, 27 February 2018 15:53 PM UTC
  2. PowerBuilder
  3. # 2

PowerBuilder calls C++ via RPCFUNC using __STDCALL, which doesn't allow class names, only function names.

https://docs.microsoft.com/en-us/cpp/cpp/stdcall

You can't call C# using using RPCFUNC.  You would either need to use a conditional code block and use it as a .Net assembly or expose it through a COM Callable Wrapper and call it via COM.

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