C / C++ / MFC

LiYS wrote:

reside in "Setup" folder

With_problem wrote:

"unhandled execption in text.exe :0xC0000005": access violation"

With_problem wrote:

yesterday you help me out to solve my dll problem

With_problem wrote:

i am getting this error while inserting data through dll to sqlserver

With_problem wrote:

......if you want i can copy paste that code agin to help me..pls

typedef int (CALLBACK* Set_Quote_DB)(unsigned short**,short*,unsigned short**,unsigned short**,unsigned short**,short*);

void CArielProjectVer2Dlg::OnPriceChangeArielapictrl1(LPCTSTR SessionId, LPCTSTR RequestId, short MarketNo, LPCTSTR Market,LPCTSTR Bid, short BidDirection, LPCTSTR Ask, short AskDirection, LPCTSTR High, LPCTSTR Low, short MarketState, LPCTSTR Timestamp) 
{
	// TODO: Add your control notification handler code here
	HINSTANCE hInstance=LoadLibrary("WartzODLCOM.dll");
	Set_Quote_DB SetQuote;
	SetQuote = (Set_Quote_DB)GetProcAddress(hInstance,"setQuoteToDb");
	
	SessID=SessionId;
	CurrentRequestId=RequestId;
	
	CString marketstate,marketno,bid_d,ask_d;

   	marketno.Format("%d",MarketNo);
	bid_d.Format("%c",BidDirection);
	ask_d.Format("%c",AskDirection);
	marketstate.Format("%d",MarketState);

    
	m_MainEdit=m_MainEdit + "<Price Change> + SessionId + "\t" + RequestId +"\t"+ a ; 
	m_MainEdit=m_MainEdit + "\t"+ Market + Bid  + b + Ask +c +"\t "+ High + "\t";
	m_MainEdit=m_MainEdit + Low + "\t" + d + "   "+ "\t" + Timestamp + "\r\n"; 

	UpdateData(FALSE);
	iLineCount=m_EditCtrl.GetLineCount();
	m_EditCtrl.LineScroll(iLineCount);


	USES_CONVERSION;
	BSTR bsTimeStamp = A2BSTR(Timestamp);
	BSTR bsMarket =  A2BSTR(Market);
	BSTR bsBid = A2BSTR(Bid);
	BSTR bsAsk = A2BSTR(Ask);
                
        // debugging error when calling this function...of dll....access violation
	HRESULT hResult = SetQuote(&bsTimeStamp,&MarketNo,&bsMarket,&bsAsk,&bsBid,&MarketState);
	if(FAILED(hResult))
	{
		AfxMessageBox(_T("Error  inserting record"));
		return;
	}
	else
	{
		MessageBox(_T("data entered" ));
	}
	
   	SysFreeString(bsTimeStamp);
	SysFreeString(bsMarket);
	SysFreeString(bsBid);
	SysFreeString(bsAsk);

	FreeLibrary( hInstance );

  }

With_problem wrote:

HINSTANCE hInstance=LoadLibrary("WartzODLCOM.dll"); Set_Quote_DB SetQuote; SetQuote = (Set_Quote_DB)GetProcAddress(hInstance,"setQuoteToDb");

INSTANCE hInstance=LoadLibrary("WartzODLCOM.dll");	
if (hInstance == NULL)
{
   // dont go further
   return;
}
Set_Quote_DB SetQuote;	
SetQuote = (Set_Quote_DB)GetProcAddress(hInstance,"setQuoteToDb");
if (SetQuote == NULL)
{
   // dont go further
   return;
}

With_problem wrote:

now it is ok no error but now it has stoped displaing anything in edit box...and also not inserting the data...any clue

With_problem wrote:

project->setting->link->C:\ActiveXdll\WartzODLCOM.lib