I have an idl file and it compiles successfully when compiled with jidl.exe.When it is compiled with idlcpp.exe it gives an MIDL2025: syntax error: expecting a type specification near "in".

the idl file is

interface auditserv 
    void storeLoginInformation(in string infmn1,in string infmn2);


Edited by mike_2000_17: Fixed formatting

9 Years
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Last Post by jencas

It seems that your compiler is unable to determine the proper type for your function argument,

What does "in" mean in your function by the way?

Is it already a defined type?


I think it doesn't know what string is, and I don't think you can pass string objects as parameters to COM functions. Change string to char* and see if that fixes the problem.

>>What does "in" mean in your function by the way?
In COM programming there are in parameters, meaning input and out parameters, meaning output. They are used only in MDL files, not actual header or *.cpp files.


string is a well known type for IDL. The in and out specifiers help the C++ conversion tool to decide whether the variable may be const or not.

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