quickfix-developers

[Quickfix-developers] trade client dialog access violation error

[mhassan <has...@gm...>]

i am developing a fix based GUI client in VS6, its a dialog 

when i got the success message in Application::onLogon(), i am trying to
update a label in the dialog but it gives error "Unhandled Exception
(MFC42D.DLL) 0xC0000005: access violation".


here is the piece of code i am trying in onLogon

     HWND hw=hWnd;
     CWnd* pWnd = CWnd::FromHandle(hWnd);
     
     LSEClientDlg* pDlg = (LSEClientDlg*) pWnd;
     ThreadFunction = LSEClientDlg::DlgFunction;
     ThreadFunction((LPVOID)pDlg, "Connected");

i am calling a static function of dialog and in the dialog method

void LSEClientDlg::DlgFunction(
LPVOID pObj, CString str)
{
    LSEClientDlg* pDlg = (LSEClientDlg*) pObj;
    pDlg->ud(str);

}


void LSEClientDlg::ud(CString msg)
{
        this->m_connection_status = msg ;
       UpdateData(FALSE);
            
}


the line 

this->m_connection_status = msg ;

 is getting the access violation error.

Any help very much appreciated.

thanks
m. hassan

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Re: [Quickfix-developers] trade client dialog access violation error

[mhassan <has...@gm...>]

I am still waiting for the answer to the below question. did any body come
across of "Unhadled Exception" error while developing a GUI based client in
vc++


thanks



mhassan wrote:
> 
> i am developing a fix based GUI client in VS6, its a dialog 
> 
> when i got the success message in Application::onLogon(), i am trying to
> update a label in the dialog but it gives error "Unhandled Exception
> (MFC42D.DLL) 0xC0000005: access violation".
> 
> 
> here is the piece of code i am trying in onLogon
> 
>      HWND hw=hWnd;
>      CWnd* pWnd = CWnd::FromHandle(hWnd);
>      
>      LSEClientDlg* pDlg = (LSEClientDlg*) pWnd;
>      ThreadFunction = LSEClientDlg::DlgFunction;
>      ThreadFunction((LPVOID)pDlg, "Connected");
> 
> i am calling a static function of dialog and in the dialog method
> 
> void LSEClientDlg::DlgFunction(
> LPVOID pObj, CString str)
> {
>     LSEClientDlg* pDlg = (LSEClientDlg*) pObj;
>     pDlg->ud(str);
> 
> }
> 
> 
> void LSEClientDlg::ud(CString msg)
> {
>         this->m_connection_status = msg ;
>        UpdateData(FALSE);
>             
> }
> 
> 
> the line 
> 
> this->m_connection_status = msg ;
> 
>  is getting the access violation error.
> 
> Any help very much appreciated.
> 
> thanks
> m. hassan
> 
> 

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