Hi, all
Could any boday tell me why I failed to create instance here in the
following code ?
Codes sample
--------------------------------------------------------------------
void CInsertDataTest Dlg::OnBnClicke dButton1()
{
_ConnectionPtr pMyConnect=NULL ;
HRESULT hr=pMyConnect.C reateInstance(_ _uuidof(Connect ion));
if(FAILED(hr))r eturn ;
AfxMessageBox(_ T("Successful l connected!"), MB_OK)
}
--------------------------------------------------------------------
Thanks in advance!
Joseph
3  5791 
"Joseph Lu" <jo******@yahoo .comwrote in message
news:en******** ******@TK2MSFTN GP04.phx.gbl...
Could any boday tell me why I failed to create instance here in the
following code ?
...
--------------------------------------------------------------------
void CInsertDataTest Dlg::OnBnClicke dButton1()
{
_ConnectionPtr pMyConnect=NULL ;
HRESULT hr=pMyConnect.C reateInstance(_ _uuidof(Connect ion));
if(FAILED(hr))r eturn ;
AfxMessageBox(_ T("Successful l connected!"), MB_OK)
}
--------------------------------------------------------------------
Um, what is the value of hr?
Regards,
Will
the value of hr is : 0x800401f0 , my code is very simple, I used VC to
create a dialog based application and the create a new button on the dialog,
then I added a button click event to this app ,and I have listed the code as
my previous mail detailed .
"William DePalo [MVP VC++]" <wi***********@ mvps.orgдÈëÏûÏ ¢
news:%2******** ********@TK2MSF TNGP05.phx.gbl. ..
"Joseph Lu" <jo******@yahoo .comwrote in message
news:en******** ******@TK2MSFTN GP04.phx.gbl...
> Could any boday tell me why I failed to create instance here in the
following code ?
...
--------------------------------------------------------------------
void CInsertDataTest Dlg::OnBnClicke dButton1()
{
_ConnectionPtr pMyConnect=NULL ;
HRESULT hr=pMyConnect.C reateInstance(_ _uuidof(Connect ion));
if(FAILED(hr))r eturn ;
AfxMessageBox(_ T("Successful l connected!"), MB_OK)
}
--------------------------------------------------------------------
Um, what is the value of hr?
Regards,
Will
Well , I got it, I find I need to call AfxOleInit() before create instance!
"Joseph Lu" <jo******@yahoo .comдÈëÏûÏ¢
news:ux******** ******@TK2MSFTN GP03.phx.gbl...
the value of hr is : 0x800401f0 , my code is very simple, I used VC to
create a dialog based application and the create a new button on the
dialog, then I added a button click event to this app ,and I have listed
the code as my previous mail detailed .
"William DePalo [MVP VC++]" <wi***********@ mvps.orgдÈëÏûÏ ¢
news:%2******** ********@TK2MSF TNGP05.phx.gbl. ..
>"Joseph Lu" <jo******@yahoo .comwrote in message
news:en******* *******@TK2MSFT NGP04.phx.gbl.. .
>> Could any boday tell me why I failed to create instance here in the
following code ?
...
--------------------------------------------------------------------
void CInsertDataTest Dlg::OnBnClicke dButton1()
{
_ConnectionPtr pMyConnect=NULL ;
HRESULT hr=pMyConnect.C reateInstance(_ _uuidof(Connect ion));
if(FAILED(hr))r eturn ;
AfxMessageBox(_ T("Successful l connected!"), MB_OK)
}
--------------------------------------------------------------------
Um, what is the value of hr?
Regards,
Will
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