/// <include file='..\..\doc\MessageQueueEnumerator.uex' path='docs/doc[@for="MessageQueueEnumerator.MoveNext"]/*' />
/// <devdoc>
/// <para>
/// Advances the enumerator to the next queue of the enumeration, if one
/// is currently available.</para>
/// </devdoc>
public bool MoveNext()
{
MQPROPVARIANTS[] array = new MQPROPVARIANTS[2];
int propertyCount;
string currentItem;
byte[] currentGuid = new byte[16];
string machineName = null;
if (this.criteria != null && this.criteria.FilterMachine)
{
if (this.criteria.MachineName.CompareTo(".") == 0)
{
machineName = MessageQueue.ComputerName + "\\";
}
else
{
machineName = this.criteria.MachineName + "\\";
}
}
do
{
propertyCount = 2;
int status;
status = SafeNativeMethods.MQLocateNext(this.Handle, ref propertyCount, array);
if (MessageQueue.IsFatalError(status))
{
throw new MessageQueueException(status);
}
if (propertyCount != 2)
{
this.currentMessageQueue = null;
return(false);
}
//Using Unicode API even on Win9x
currentItem = Marshal.PtrToStringUni(array[0].ptr);
Marshal.Copy(array[1].ptr, currentGuid, 0, 16);
//MSMQ allocated this memory, lets free it.
SafeNativeMethods.MQFreeMemory(array[0].ptr);
SafeNativeMethods.MQFreeMemory(array[1].ptr);
}while (machineName != null && (machineName.Length >= currentItem.Length ||
String.Compare(machineName, 0, currentItem, 0, machineName.Length, true, CultureInfo.InvariantCulture) != 0));
this.currentMessageQueue = new MessageQueue(currentItem, new Guid(currentGuid));
return(true);
}
public bool MoveNext()
{
string str;
MQPROPVARIANTS[] variantArray = new MQPROPVARIANTS[2];
byte[] destination = new byte[0x10];
string strA = null;
if ((this.criteria != null) && this.criteria.FilterMachine)
{
if (this.criteria.MachineName.CompareTo(".") == 0)
{
strA = MessageQueue.ComputerName + @"\";
}
else
{
strA = this.criteria.MachineName + @"\";
}
}
do
{
int propertyCount = 2;
int num2 = SafeNativeMethods.MQLocateNext(this.Handle, ref propertyCount, variantArray);
if (MessageQueue.IsFatalError(num2))
{
throw new MessageQueueException(num2);
}
if (propertyCount != 2)
{
this.currentMessageQueue = null;
return(false);
}
str = Marshal.PtrToStringUni(variantArray[0].ptr);
Marshal.Copy(variantArray[1].ptr, destination, 0, 0x10);
SafeNativeMethods.MQFreeMemory(variantArray[0].ptr);
SafeNativeMethods.MQFreeMemory(variantArray[1].ptr);
}while ((strA != null) && ((strA.Length >= str.Length) || (string.Compare(strA, 0, str, 0, strA.Length, true, CultureInfo.InvariantCulture) != 0)));
this.currentMessageQueue = new MessageQueue(str, new Guid(destination));
return(true);
}
