/// <summary> Returns collection of detailed connection manager items </summary>
public ConnectionDetailCollection GetConnectionDetailItems(bool refresh)
{
bool newCollection = m_connectionDetailColllection == null;
if (newCollection || refresh)
{
// jsm - Do this only on first-time initialization
if (newCollection)
{
m_connectionDetailColllection = new ConnectionDetailCollection();
m_statusChangeWnd = new StatusNotificationPump(m_connectionDetailColllection);
SafeNativeMethods.ConnMgrRegisterForStatusChangeNotification(true, m_statusChangeWnd.Hwnd);
}
// jsm - Bug 363 - We're not refreshing
if (newCollection || refresh)
{
int cb = 0;
uint ret = 0;
try
{
ret = SafeNativeMethods.ConnMgrQueryDetailedStatus(IntPtr.Zero, ref cb);
}
catch (MissingMethodException)
{
throw new PlatformNotSupportedException("Detailed connection status is not supported on this platform");
}
if (ret != SafeNativeMethods.INSUFFICIENT_BUFFER)
{
throw new System.ComponentModel.Win32Exception();
}
IntPtr pStat = Marshal.AllocHGlobal(cb);
try
{
ret = SafeNativeMethods.ConnMgrQueryDetailedStatus(pStat, ref cb);
if (ret == 0)
{
IntPtr pObj = pStat;
while (pObj != IntPtr.Zero)
{
CONNMGR_CONNECTION_DETAILED_STATUS stat = (CONNMGR_CONNECTION_DETAILED_STATUS)Marshal.PtrToStructure(pObj, typeof(CONNMGR_CONNECTION_DETAILED_STATUS));
m_connectionDetailColllection.Add(new ConnectionDetail(stat));
pObj = stat.pNext;
}
}
else
{
throw new System.ComponentModel.Win32Exception();
}
}
finally
{
Marshal.FreeHGlobal(pStat);
}
}
}
return(m_connectionDetailColllection);
}
public StatusNotificationPump(ConnectionDetailCollection detailsCollection)
{
m_detailsCollection = detailsCollection;
m_statusChangedMsg = RegisterWindowMessage(CONNMGR_STATUS_CHANGE_NOTIFICATION_MSG);
}