How to use the unregistered ScrRecX

Usually you need to register an ActiveX component before using it, by using this command: regsvr32 ScrRecX.dll

Sometimes, however you want to use the unregistered ActiveX (for example, in the portable version of your application).

Visual C++ Example

HRESULT CreateComObject(HMODULE hLib, REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
  PDLLGETCLASSOBJECT pGCO = (PDLLGETCLASSOBJECT)::GetProcAddress(hLib, "DllGetClassObject");
    if( pGCO == NULL )
        return E_POINTER;

  CComPtr<IClassFactory> pFactory;
    HRESULT hr = pGCO(rclsid, IID_IClassFactory, (void**)&pFactory);
  if ( FAILED(hr) )
    return hr;

  hr = pFactory->CreateInstance(NULL, riid, ppv);
  if ( FAILED(hr) )
    return hr;

  return S_OK;
}

...

#import "ScrRecX.dll" no_namespace named_guids raw_interfaces_only

...

CComPtr< IFMScrRec >  pRec;

hLib = LoadLibrary(_T("ScrRecX.dll"));
if ( !hLib )
{
  // Process error
}

HRESULT hr = CreateComObject(hLib, CLSID_FMScrRec, IID_IFMScrRec, (void**)pRec);
if ( FAILED(hr) )
{
  // Process error
}

...

Events

If you use the unregistered ScrRecX object, events never fire. In this case you need to set a windos handle WindowHandle property to receive windows messages instead of events:

VideoRecorder.put_WindowHandle((OLE_HANDLE)HandleToLong(hWnd));

In this case a specified window will receive the following messages:

#define WM_RECORDING_COMPLETE  (WM_APP + 300)
#define WM_RECORDING_ERROR     (WM_APP + 310)
#define WM_ENCODING_COMPLETE   (WM_APP + 320)
#define WM_ENCODING_ERROR      (WM_APP + 330)
#define WM_ENCODING_PROGRESS   (WM_APP + 340)

See Also:

RecordingComplete event
RecordingError event
EncodingComplete event
EncodingError event
EncodingProgress event