Hi,
I have a dll writen in visual c.
Its function parameters are structs (records)
I made equal records in delphi by changing this way
C
struct{
int a
double b
unsignd char c
}
to
delphi
record=
a:smallint;
b:double;
c:byte
end;
The size are same
But I think sending parameter in pascal are c are different.And i have not source of dll to add PASCAL keyword for function
Reversing parameter order will solve my problem or not?

: Hi,
: I have a dll writen in visual c.
: Its function parameters are structs (records)
: I made equal records in delphi by changing this way
: C
: struct{
: int a
: double b
: unsignd char c
: }
: to
: delphi
: record=
: a:smallint;
: b:double;
: c:byte
: end;
: The size are same
: But I think sending parameter in pascal are c are different.And i have not source of dll to add PASCAL keyword for function
: Reversing parameter order will solve my problem or not?
:
I don't think that for a record it matters much, because the record type declaration specifies the order in which the fields are listed in the memory. I suggest you just try to call the exported procedure from a small test project and see if the results are, what you expect them to be. In case of an error, try the reverse order.

: Hi,
: I have a dll writen in visual c.
: Its function parameters are structs (records)
: I made equal records in delphi by changing this way
: C
: struct{
: int a
: double b
: unsignd char c
: }
: to
: delphi
: record=
: a:smallint;
: b:double;
: c:byte
: end;
: The size are same
: But I think sending parameter in pascal are c are different.And i have not source of dll to add PASCAL keyword for function
: Reversing parameter order will solve my problem or not?
:


Hi, You can try to add "stdcall" or "cdecl" keywords to function decleration in delph. For example :

procedure SomeFunction (a, b : somerecord) ; stdcall (or cdecl);

: : Hi,
: : I have a dll writen in visual c.
: : Its function parameters are structs (records)
: : I made equal records in delphi by changing this way
: : C
: : struct{
: : int a
: : double b
: : unsignd char c
: : }
: : to
: : delphi
: : record=
: : a:smallint;
: : b:double;
: : c:byte
: : end;
: : The size are same
: : But I think sending parameter in pascal are c are different.And i have not source of dll to add PASCAL keyword for function
: : Reversing parameter order will solve my problem or not?
: :
:
:
: Hi, You can try to add "stdcall" or "cdecl" keywords to function decleration in delph. For example :
:
: procedure SomeFunction (a, b : somerecord) ; stdcall (or cdecl);
:
:
:
Thanks i will try