/// <include file='doc\AxHost.uex' path='docs/doc[@for="AxHost.AxContainer.EnumObjects"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
int UnsafeNativeMethods.IOleContainer.EnumObjects(int grfFlags, out UnsafeNativeMethods.IEnumUnknown ppenum) {
Debug.WriteLineIf(AxHTraceSwitch.TraceVerbose, "in EnumObjects");
ppenum = null;
if ((grfFlags & 1) != 0) { // 1 == OLECONTF_EMBEDDINGS
Debug.Assert(parent != null, "gotta have it...");
ArrayList list = new ArrayList();
ListAxControls(list, true);
if (list.Count > 0) {
Object[] temp = new Object[list.Count];
list.CopyTo(temp, 0);
ppenum = new EnumUnknown(temp);
return NativeMethods.S_OK;
}
}
ppenum = new EnumUnknown(null);
return NativeMethods.S_OK;
}
///<summary>
/// IOPCServer::CreateGroupEnumerator - Creates various enumerators for the groups provided by the Server.
///</summary>
public void CreateGroupEnumerator(OpcRcw.Da.OPCENUMSCOPE dwScope, ref Guid riid, out object ppUnk)
{
lock (m_lock)
{
try
{
switch (dwScope)
{
case OPCENUMSCOPE.OPC_ENUM_PUBLIC:
case OPCENUMSCOPE.OPC_ENUM_PUBLIC_CONNECTIONS:
{
if (riid == typeof(OpcRcw.Comn.IEnumString).GUID)
{
ppUnk = new EnumString(null);
return;
}
if (riid == typeof(OpcRcw.Comn.IEnumUnknown).GUID)
{
ppUnk = new EnumUnknown(null);
return;
}
throw ComUtils.CreateComException("E_NOINTERFACE", ResultIds.E_NOINTERFACE);
}
}
if (riid == typeof(IEnumUnknown).GUID)
{
ppUnk = new EnumUnknown(m_groups);
return;
}
if (riid == typeof(OpcRcw.Comn.IEnumString).GUID)
{
ArrayList names = new ArrayList(m_groups.Count);
foreach (string name in m_groups.Keys)
{
names.Add(name);
}
ppUnk = new EnumString(names);
return;
}
throw ComUtils.CreateComException("E_NOINTERFACE", ResultIds.E_NOINTERFACE);
}
catch (Exception e)
{
throw ComUtils.CreateComException(e);
}
}
}
void UnsafeNativeMethods.IEnumUnknown.Clone(out UnsafeNativeMethods.IEnumUnknown ppenum) {
ppenum = new EnumUnknown(arr, loc);
}
HRESULT Ole32.IEnumUnknown.Clone(out Ole32.IEnumUnknown ppenum)
{
ppenum = new EnumUnknown(arr, loc);
return(HRESULT.S_OK);
}
