public static int Initialize(Ddeml.DdeCallback pfnCallback, int afCmd)
{
lock (_Table)
{
// Initialize a DDEML instance.
int instanceId = 0;
Ddeml.DdeInitialize(ref instanceId, pfnCallback, afCmd, 0);
if (instanceId != 0)
{
// Make sure this thread has an IMessageFilter on it.
LocalDataStoreSlot slot = Thread.GetNamedDataSlot(DataSlot);
if (Thread.GetData(slot) == null)
{
InstanceManager filter = new InstanceManager();
Application.AddMessageFilter(filter);
Thread.SetData(slot, filter);
}
// Add an entry to the table that maps the instance identifier to the current thread.
_Table.Add(instanceId, Ddeml.GetCurrentThreadId());
}
return instanceId;
}
}
