COM typedefs

[Claus77]

hi there,

i'm just programing a com-interface and within my .idl file i define
a struct, somehow like this:

typedef struc struk
{
int a;
long b;
}struk;

which is uses in a method:

test(struk a)
{
....
}


now my problem:
how can i call this function from vb-script without getting an error?
do i have to define the struct in another way as here shown?
in c++ its easy, because i can call the struct directly...

greetings,
claus

 

[Salt_Peter]

hi there,

i'm just programing a com-interface and within my .idl file i define
a struct, somehow like this:

typedef struc struk
{
int a;
long b;
}struk;

which is uses in a method:

test(struk a)
{
...
}


now my problem:
how can i call this function from vb-script without getting an error?
do i have to define the struct in another way as here shown?
in c++ its easy, because i can call the struct directly...

greetings,
claus

Who knows, except to say that C++ won't allow that either.
Structs don't exist. They are just blueprints, declarations.
A struct is not called nor is it an object - in any language. An
instance of a struct also can't be "called". An instance can be created
/ conceived by "invoking" the struct's constructor.
You can *call* a function and pass it an instance by value, pointer or
reference, assuming there is a corresponding blueprint somewhere for
that function (a declaration).

struct Whatever
{
int a;
Whatever() : a(99) { }
} instance;

void test( Whatever& ref )
{
std::cout << ref.a << std::endl;
}

int main()
{
test( instance );
}

/*
99
*/

 

[Phlip]

.idl file ....
how can i call this function from vb-script without getting an error? ....
in c++ its easy, because i can call the struct directly...

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