Re: VB Activex control with a window in a ATL project

Hi,

Thanks for the reply...I followed your other extensive posts about ATL
hosting with a window.(for activex control)
I was able to solve this problem..almost.

Just one more problem with receiving events from VB activex in the
ATL..

Trying to use DispEventAdvise SINK_ENTRY_INFO...any pointers?

Is this the right way to receive events in ATL from VB activex?
---------------------------------------------------------------------------------------------------------------------------

static _ATL_FUNC_INFO OnPBFrameInfo = {CC_STDCALL, VT_EMPTY, 3,
{VT_DATE, VT_I2, VT_I2}};
static _ATL_FUNC_INFO OnPBErrorInfo = {CC_STDCALL, VT_EMPTY, 2,
{VT_I2, VT_BSTR}};
static _ATL_FUNC_INFO OnPBCreateWInfo = {CC_STDCALL, VT_EMPTY,
VT_NULL};
static _ATL_FUNC_INFO OnPBStateInfo = {CC_STDCALL, VT_EMPTY, 1,
{VT_I2}};

class CPBEventSink : public IDispEventImpl<IDC_PBOBJ, CPBEventSink,
&::DIID__IGEvents>
{
public:

//CPBEventSink(CDVRUnitConnection* conn):m_pConn(conn){};
CPBEventSink()
{
}

BEGIN_SINK_MAP(CPBEventSink)
//Make sure the Event Handlers have __stdcall calling convention
SINK_ENTRY_INFO(IDC_PBOBJ, DIID__IGEvents, 0x1, pbFrameNotify,
&OnPBFrameInfo)
SINK_ENTRY_INFO(IDC_PBOBJ, DIID__IGEvents, 0x6, pbErrorNotify,
&OnPBErrorInfo)
SINK_ENTRY_INFO(IDC_PBOBJ, DIID__IGEvents, 0x4, pbCreateWindow,
&OnPBCreateWInfo)
SINK_ENTRY_INFO(IDC_PBOBJ, DIID__IGEvents, 0x14, pbStateChange,
&OnPBStateInfo)
END_SINK_MAP()

void __stdcall pbFrameNotify(DATE dateFrameTime,
       int nMotionPercentage,
       int nBuffering )
{
TCHAR buf[80];
wsprintf(buf, "FRAME PB Notification Event Received");
AtlTrace("\n%s",buf);
}

// Event Handler
void __stdcall pbErrorNotify(int nErrorCode,
       BSTR bstrError )
{
TCHAR buf[80];
wsprintf(buf, "ERROR PB Notification Event Received");
AtlTrace("\n%s",buf);
}

void __stdcall pbCreateWindow()
{
TCHAR buf[80];
wsprintf(buf, "ERROR PB Notification Event Received");
AtlTrace("\n%s",buf);
}

void __stdcall pbStateChange(int state)
{
TCHAR buf[80];
wsprintf(buf, "ERROR PB Notification Event Received");
AtlTrace("\n%s",buf);
}

};
-----------------------------------------------------------------------------------------------------------------------------------------------------------

and calling DispEventAdvise like this

m_PBSink=new CPBEventSink();
hr = m_PBSink->DispEventAdvise(pUnkCtrl, &(::DIID__IGEvents));
Where pUnkCtrl is the pointer to the unknown control..

here I receive hr as "0x80040200"

Thanks
Vijay