How do I do this ? [modified]
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Imagine.. in the ATL implementation, we have a collection or an array, ie :
int num[5]; num[0]=100;..... [5]=500;Now in my client, (i.e VB) , I need to access them like, (Imagine collection is the property which points to the array I've mentioned above}msgbox (MyComp.Collection[0]) (and like this too..) MyComp.Collection(0).length --> this should pop "3"It should popup 100. :confused: -- modified at 11:24 Monday 10th July, 2006 -
Imagine.. in the ATL implementation, we have a collection or an array, ie :
int num[5]; num[0]=100;..... [5]=500;Now in my client, (i.e VB) , I need to access them like, (Imagine collection is the property which points to the array I've mentioned above}msgbox (MyComp.Collection[0]) (and like this too..) MyComp.Collection(0).length --> this should pop "3"It should popup 100. :confused: -- modified at 11:24 Monday 10th July, 2006 -
Imagine.. in the ATL implementation, we have a collection or an array, ie :
int num[5]; num[0]=100;..... [5]=500;Now in my client, (i.e VB) , I need to access them like, (Imagine collection is the property which points to the array I've mentioned above}msgbox (MyComp.Collection[0]) (and like this too..) MyComp.Collection(0).length --> this should pop "3"It should popup 100. :confused: -- modified at 11:24 Monday 10th July, 2006Hi, you have variuos options in this case, you can try and use some kind of collection enumeration based on the variant safearrays to try to please com clients like VB, or you can use the raw and simply way of having a property that inputs an index and returns the value in the array. Something like: idl: HRESULT get_CollectionItemName([in]long Index,[out,retval]BSTR* pVal); ClassName.cpp STDMETHODIMP ClassName::get_CollectionItemName(long Index,BSTR* pVal) { lookup vector or container using index copy item or item member on return value *pVal return S_OK; } This method is fairly simple of implement, you don't need to get very involved in com specific code, and you can use simple datatypes and the kind of array of your choice.