public void Dispose()
{
foreach (IGroup grp in _groups)
{
grp.Dispose();
}
_groups.Clear();
Ddeml.DdeDisconnect(hconvCurrent);
}
public unsafe bool Connect()
{
IntPtr hConv, hszService, hszTopic;
if (dwDDEInst != 0)
{
Ddeml.DdeUninitialize(dwDDEInst);
dwDDEInst = 0;
}
if (hconvCurrent != IntPtr.Zero)
{
Ddeml.DdeDisconnect(hconvCurrent);
hconvCurrent = IntPtr.Zero;
}
;
//如果是第一次，则什么也不做
Ddeml.DdeInitialize(ref dwDDEInst, _Callback, 0x3f000, 0);
// Connect to the server
hszTopic = Ddeml.DdeCreateStringHandle(dwDDEInst, _topic, Ddeml.CP_WINANSI);
hszService = Ddeml.DdeCreateStringHandle(dwDDEInst, _server, Ddeml.CP_WINANSI);
CONVCONTEXT cc = new CONVCONTEXT();
cc.cb = sizeof(CONVCONTEXT);
hConv = Ddeml.DdeConnect(dwDDEInst, hszService, hszTopic, ref cc);
//int DdeErrcode = Win32.DdeGetLastError(dwDDEInst);
Ddeml.DdeFreeStringHandle(dwDDEInst, hszTopic);
Ddeml.DdeFreeStringHandle(dwDDEInst, hszService);
if (hConv != IntPtr.Zero)
{
if (hconvCurrent != IntPtr.Zero)
{
Ddeml.DdeDisconnect(hconvCurrent);
}
hconvCurrent = hConv;
_connected = true;
return(true);
}
else
{
_connected = false;
return(false);
}
}
public void Disconnect()
{
if (IsDisposed)
{
throw new ObjectDisposedException(this.GetType().ToString());
}
if (!IsRegistered)
{
throw new InvalidOperationException("NotRegisteredMessage");
}
// Terminate all conversations.
foreach (IntPtr hConv in _ConversationTable)
{
Ddeml.DdeDisconnect(hConv);
}
// clear the hConv table.
_ConversationTable.Clear();
}
public void Disconnect(IntPtr hConv)
{
if (IsDisposed)
{
throw new ObjectDisposedException(this.GetType().ToString());
}
if (!IsRegistered)
{
throw new InvalidOperationException("NotRegisteredMessage");
}
if (_ConversationTable.Contains(hConv))
{
// Terminate the hConv.
Ddeml.DdeDisconnect(hConv);
// Remove the Conversation from the hConv table.
_ConversationTable.Remove(hConv);
}
}
