first COM server

[sapero]

Hello Community

Yesterday got Aurora and played 24h with. The first thought was "how" and "cool"
Here's a dll COM server demo with one usual method - SayHello

I don't know how to post all the code, so please download the whole sample
First - download the required object file to be able to compile dll's
Next step - create import library from advapi32.dll
as next - compile dll-server project from zip\ocx\ and register the dll using register.bat script
now compile second project in zip\test

I hope you are familiar with COM, and here are no bugs/leaks

[Ionic Wind Support Team]

   I knew it wouldn't be long before you dug your hands into Aurora COM.  Nice demo.

The layout of Aurora vtables was specifically designed so objects would work seamlessly with COM.

[Parker]

Hey, that's something I understand
Now that there's no assembly involved (well, the data statements I get) it's understandable and much more clear. I'm going to have to find some tutorials / articles on using COM now and start learning.

[sapero]

I agree, now the code is readable.
Comming soon ... flash player control, already 99% done in ibdev with trackbar

how to use void type for "ppv" or any other pointer ?

[Parker]

Do you mean a generic pointer type? It's called POINTER, same as in IBasic. "pointer x" - generic pointer, "int *x" - int pointer. You can also use casting to whatever type you want like IBasic's *<> operator, but using *() instead. For example, *(string)pText = "Hello"

[sapero]

Code Select Expand

QueryInterface(GUID *refiid, void *ppv),HRESULT
the 'void' word is colorized as standard variable type like pointer, using it sometimes works ok, or says invalid assigment.

in test server.src - change the ppv type to void - it compiles fine
but changign it in CUnknown .src and .inc - here is undefined typecast

Code Select Expand

CUnknown::QueryInterface(GUID *refiid, void *ppv),HRESULT
{
if IsEqualGUID(refiid, _IID_IUnknown)
or IsEqualGUID(refiid, IID_IAuroraTest1)
{
*(pointer)ppv = this; // only pointer works here
AddRef();
return S_OK;
}
*(int)ppv = NULL;
return E_NOINTERFACE;
}
I hope this "void" is supported by parser

[Ionic Wind Support Team]

void is a non type and it is supported. 

void *blah;

Is a pointer to an unknown type.  You must use a typecast to access it properly.  for your ppv the correct access is *(pointer)blah; 

It would be the same as

pointer blah;
*(pointer)blah;

----------------

void blah;

Is invalid, blah will have an address, but no size and no type.  I don' t have an error message for that one yet.

[Steven Picard]

Awesome!  Sapero is on the team!

[Zen]

Ha Ha. Ive seen your name spero on the forums but saw no posts from you. I should of took bets that the first thing you made would be COM related. A very nice example.

Welcome aboard.

Lewis