public static HResult GetEnableData(this IMFContentEnabler contentEnabler, out byte[] data)
{
if (contentEnabler == null)
{
throw new ArgumentNullException("contentEnabler");
}
IntPtr dataPtr;
int dataLength;
HResult hr = contentEnabler.GetEnableData(out dataPtr, out dataLength);
if (hr.Succeeded())
{
try
{
data = new byte[dataLength];
Marshal.Copy(dataPtr, data, 0, dataLength);
}
finally
{
Marshal.FreeCoTaskMem(dataPtr);
}
}
else
{
data = null;
}
return(hr);
}
///////////////////////////////////////////////////////////////////////
// Name: DoNonSilentEnable
// Description: Performs non-silent enable.
/////////////////////////////////////////////////////////////////////////
private void DoNonSilentEnable()
{
// Trust status for the URL.
MFURLTrustStatus trustStatus = MFURLTrustStatus.Untrusted;
HResult hr;
string sURL; // Enable URL
int cchURL = 0; // Size of enable URL in characters.
IntPtr pPostData; // Buffer to hold HTTP POST data.
int cbPostDataSize = 0; // Size of buffer, in bytes.
// Get the enable URL. This is where we get the enable data for non-silent enabling.
hr = m_pEnabler.GetEnableURL(out sURL, out cchURL, out trustStatus);
MFError.ThrowExceptionForHR(hr);
Debug.WriteLine(string.Format("Content enabler: URL = {0}", sURL));
LogTrustStatus(trustStatus);
if (trustStatus != MFURLTrustStatus.Trusted)
{
throw new COMException("The enabler URL is not trusted. Failing.", (int)HResult.E_FAIL);
}
// Start the thread that monitors the non-silent enable action.
hr = m_pEnabler.MonitorEnable();
MFError.ThrowExceptionForHR(hr);
// Get the HTTP POST data
hr = m_pEnabler.GetEnableData(out pPostData, out cbPostDataSize);
MFError.ThrowExceptionForHR(hr);
try
{
WebHelper m_webHelper = new WebHelper();
// Open the URL and send the HTTP POST data.
m_webHelper.OpenURLWithData(sURL, pPostData, cbPostDataSize, m_hwnd);
}
finally
{
Marshal.FreeCoTaskMem(pPostData);
}
}
