public bool SetActiveState(int[] p_ArrHSrv, bool p_Activate, out int[] p_ArrErr)
{
p_ArrErr = null;
int l_Count = p_ArrHSrv.Length;
IntPtr l_PtrErr;
int l_HResult = m_IfItems.SetActiveState(l_Count, p_ArrHSrv, p_Activate, out l_PtrErr);
if (HResults.Failed(l_HResult))
{
Marshal.ThrowExceptionForHR(l_HResult);
}
p_ArrErr = new int[l_Count];
Marshal.Copy(l_PtrErr, p_ArrErr, 0, l_Count);
Marshal.FreeCoTaskMem(l_PtrErr);
return(l_HResult == HResults.S_OK);
}
public bool SetActiveState(bool active, params short[] items)
{
int count = items.Length;
int[] arrSvr = new int[count];
for (int i = 0; i < count; i++)
{
ITag item = GetItemByID(items[i]);
if (item != null)
{
arrSvr[i] = item.Address.Start;
}
}
IntPtr ptrErr;
if (HRESULTS.Succeeded(_itemMgt.SetActiveState(count, arrSvr, active, out ptrErr)))
{
Marshal.FreeCoTaskMem(ptrErr);
return(true);
}
return(false);
}
/// <summary>
/// Sets the active state for a set of items in a group.
/// </summary>
public void ActivateItems(bool active)
{
// count the number of items to activate.
List <GroupItem> itemsToActivate = new List <GroupItem>();
lock (Lock)
{
for (int ii = 0; ii < m_items.Count; ii++)
{
if (m_items[ii].ActiveChanged && m_items[ii].Active == active && m_items[ii].Created)
{
itemsToActivate.Add(m_items[ii]);
}
}
}
// check if nothing to do.
if (itemsToActivate.Count == 0)
{
return;
}
// build list of items to remove.
int count = itemsToActivate.Count;
int[] serverHandles = new int[count];
for (int ii = 0; ii < itemsToActivate.Count; ii++)
{
serverHandles[ii] = itemsToActivate[ii].ServerHandle;
}
// initialize output parameters.
IntPtr pErrors = IntPtr.Zero;
string methodName = "IOPCItemMgt.SetActiveState";
try
{
IOPCItemMgt server = BeginComCall <IOPCItemMgt>(methodName, true);
server.SetActiveState(
count,
serverHandles,
(active) ? 1 : 0,
out pErrors);
}
catch (Exception e)
{
ComUtils.TraceComError(e, methodName);
for (int ii = 0; ii < itemsToActivate.Count; ii++)
{
itemsToActivate[ii].ActiveChanged = false;
itemsToActivate[ii].ErrorId = Marshal.GetHRForException(e);
}
}
finally
{
EndComCall(methodName);
}
// free returned error array.
int[] errors = ComUtils.GetInt32s(ref pErrors, count, true);
// save error codes.
for (int ii = 0; ii < count; ii++)
{
itemsToActivate[ii].ActiveChanged = false;
itemsToActivate[ii].ErrorId = errors[ii];
}
/*
* Utils.Trace(
* "Group {0} ActivateItems({4}/{5}) {1}/{2}ms {3}%",
* m_clientHandle,
* m_samplingInterval,
* m_actualSamplingInterval,
* m_deadband,
* active,
* itemsToActivate.Count);
*/
}