DOWNLOAD.CPP

// =========================================================================== 
// File: DOWNLOAD.Cpp 
// Defines the class behaviour for CBindStatusCallback.  
 
 
#include "stdafx.h" 
#include "Mainfrm.h" 
#include "download.h" 
#include "winnls.h" 
// #include "Util.H" 
 
// =========================================================================== 
//                     CBindStatusCallback Implementation 
// =========================================================================== 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::CBindStatusCallback 
// --------------------------------------------------------------------------- 
CBindStatusCallback::CBindStatusCallback(CMainFrame * pMDIframewnd) 
{ 
    m_pbinding = NULL; 
    m_pstm = NULL; 
    m_cRef = 1; 
    m_cbOld = 0; 
m_pMDIframwnd=pMDIframewnd; 
}  // CBindStatusCallback 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::~CBindStatusCallback 
// --------------------------------------------------------------------------- 
CBindStatusCallback::~CBindStatusCallback() 
{ 
    if (m_pstm) 
        m_pstm->Release(); 
    if (m_pbinding) 
        m_pbinding->Release(); 
}  // ~CBindStatusCallback 
 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::QueryInterface 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
CBindStatusCallback::QueryInterface(REFIID riid, void** ppv) 
{  
    *ppv = NULL; 
     
    if (riid==IID_IUnknown || riid==IID_IBindStatusCallback) 
        { 
        *ppv = this; 
        AddRef(); 
        return S_OK; 
        } 
    return E_NOINTERFACE; 
}  // CBindStatusCallback::QueryInterface 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::OnStartBinding 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
CBindStatusCallback::OnStartBinding(DWORD grfBSCOption, IBinding* pbinding) 
{ 
m_pMDIframwnd->MyShowPane("Starting to Download File "); 
return(NOERROR); 
}  // CBindStatusCallback::OnStartBinding 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::GetPriority 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
CBindStatusCallback::GetPriority(LONG* pnPriority)  
{ 
 return(NOERROR); 
}  // CBindStatusCallback::GetPriority 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::OnLowResource 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
CBindStatusCallback::OnLowResource(DWORD dwReserved) 
{ 
  return(NOERROR); 
}  // CBindStatusCallback::OnLowResource 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::OnStopBinding 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
CBindStatusCallback::OnStopBinding(HRESULT hrStatus, LPCWSTR pszError)  
{ 
if (hrStatus) 
m_pMDIframwnd->MyShowPane("File download Failed."); 
else 
m_pMDIframwnd->MyShowPane("File Downloaded"); 
return(NOERROR); 
}  // CBindStatusCallback::OnStopBinding 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::GetBindInfo 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
CBindStatusCallback::GetBindInfo(DWORD* pgrfBINDF, BINDINFO* pbindInfo) 
{ 
 return (NOERROR); 
}  // CBindStatusCallback::GetBindInfo 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::OnDataAvailable 
// This function is called whenever data starts arriving. When the file download is 
// complete then the BSCF_LASTDATANOTIFICATION comes and you can get the local cached 
// File Name. 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
 CBindStatusCallback::OnDataAvailable 
 ( 
 DWORD grfBSCF,  
 DWORD dwSize,  
 FORMATETC* pfmtetc,  
 STGMEDIUM* pstgmed 
 )  
 { 
  return(NOERROR); 
 }  // CBindStatusCallback::OnDataAvailable 
 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::OnObjectAvailable 
// --------------------------------------------------------------------------- 
 STDMETHODIMP 
CBindStatusCallback::OnObjectAvailable(REFIID riid, IUnknown* punk)  
{ 
 return(NOERROR); 
}  // CBindStatusCallback::OnObjectAvailable 
 
// --------------------------------------------------------------------------- 
// %%Function: CBindStatusCallback::OnProgress 
// --------------------------------------------------------------------------- 
STDMETHODIMP  
CBindStatusCallback::OnProgress 
(  
     ULONG ulProgress, 
     ULONG ulProgressMax, 
     ULONG ulStatusCode, 
     LPCWSTR pwzStatusText 
)  
{ 
    char    msg[100]; 
    wsprintf(msg,"Downloaded : %d bytes of %d ", ulProgress, (ulProgress>ulProgressMax)?ulProgress:ulProgressMax); 
m_pMDIframwnd->MyShowPane(msg); 
 
 return(NOERROR); 
}// CBindStatusCallback::OnProgress