Article View: borland.public.cppbuilder.database.ado
Article #5248Recordsetptr problems with COM
From: Geert Van Laethem
Date: Tue, 26 Jun 2001 13:52
Date: Tue, 26 Jun 2001 13:52
34 lines
1721 bytes
1721 bytes
Hi,
I want to pass from my COM-server to my client a Recordsetptr in my type library i define it and the implementation look something like this.
STDMETHODIMP TCustomerImpl::GetData(_RecordsetPtr* Dataset)
{
m_DataModule->adsCustomer->Active = TRUE;
_di__Recordset lTest;
lTest = m_DataModule->adsCustomer->Recordset;
lTest->QueryInterface(__uuidof(_di__Recordset), (void**) &Dataset);
return S_OK;
}
It compiles but there is no data in the RecordsetPtr when i do the queryinterface.
On the client i wrote something like that :
void __fastcall TForm1::Button1Click(TObject *Sender)
{
TCOMICustomer lCustomer;
OleCheck(CoCustomer::Create(lCustomer));
_RecordsetPtr* test;
OleCheck(lCustomer.GetData(test));
ShowMessage(IntToStr((*test)->RecordCount));
}
On the showmessage it gives me an access violation.
Can somebody help me with that problem?
TIA
Geert Van Laethem
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