c - lazarus
lazarus / 1-Linux

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nico88desmo · 2007-04-01 13:26

Hello!

This is my problem:
I'd like to call a function/procedure written in pascal from a C
source.
I know C has got a directive called EXTERN used to call external
function.

Can I do the same thing even if the external function is written with
pascal?

Thank to All!

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nico88desmo · 2007-04-02 13:09

I do it!  :mrgreen:

So, i write the code; it may be usefull for somebody;

C source. In the definition of functions you must write:
EXTERN void function_name (void);

Pascal unit source. Under interface section you must write the
declaration of the function/procedure:
procedure procedure_name; cdecl; export;

and then the definition of it:
procedure procedure_name; cdecl; export;
begin
   ...
end;