How to return the address of a struct in a C dll

tttbag

Hi guys,

i am writing a C dll.
In the DLL there a struct defined and will be used in a funtion PP_Ini().

My question is how can i return the address of the struct used in the PP_Ini() to the Application which consums this DLL

Thanks

bag

since windoze .exe and dlls live in the same, virtual address space you can retunr that struct as usual...

// dll.c
struct blah;
..
struct blah *dll_function (void)
{
 ...
 return &blah;
}

// main.c
...
void main (void)
{
   struct blah *b = dll_function();  // get a pointer
   b->... = ...;   // access the struct
}

^^see the m$ online docs how to export functions from dlls, ect.

~fricky schrieb:

// dll.c
struct blah;
..
struct blah *dll_function (void)
{
 ...
 return &blah;
}

edit:

// dll.c
struct blah blah;

tttbag

Hi ~fricky,

thanks for your quick reply.
It really helps.

Another question. Do u know c#. How the dll.c looks like in a dll.cs file?
I mean implement the DLL in C#

also wanna get the struct address.

Thanks!!

bag

[quote="~fricky"]

~fricky schrieb:

// dll.c
struct blah blah;

tttbag schrieb:

Another question. Do u know c#. How the dll.c looks like in a dll.cs file?
I mean implement the DLL in C#

sorry, i know cs very little. but i know that c# is some kind of 'Java with pointers', so there's probably a good chance to do it 'the C way'.
better ask in the C# section.

Javaner

~fricky schrieb:

but i know that c# is some kind of 'Java with pointers'

LOL!

Awesome explanation!

was denn? das ist doch auch so.