public static string[] GetSubqueueNames(string queueFormatName)
{
int[] propertyIds = new int[1]
{
MsmqNativeMethods.PROPID_MGMT_QUEUE.QUEUE_SUBQUEUE_NAMES
};
GCHandle aPropId = GCHandle.Alloc(propertyIds, GCHandleType.Pinned);
MsmqNativeMethods.MQPROPVARIANT[] propertyValues = new MsmqNativeMethods.MQPROPVARIANT[1]
{
new MsmqNativeMethods.MQPROPVARIANT()
{
vt = (short)VarEnum.VT_NULL
}
};
GCHandle aPropVar = GCHandle.Alloc(propertyValues, GCHandleType.Pinned);
MsmqNativeMethods.MQQUEUEPROPS queueProperties = new MsmqNativeMethods.MQQUEUEPROPS()
{
cProp = 1,
aPropID = aPropId.AddrOfPinnedObject(),
aPropVar = aPropVar.AddrOfPinnedObject(),
aStatus = IntPtr.Zero
};
uint returnCode = MsmqNativeMethods.MQMgmtGetInfo(Environment.MachineName, "QUEUE=" + queueFormatName, queueProperties);
aPropId.Free();
aPropVar.Free();
if (returnCode == MsmqNativeMethods.MQ_ERROR.QUEUE_NOT_ACTIVE)
{
return(new string[0]);
}
MsmqException.Assert(returnCode == 0, string.Format(CultureInfo.InvariantCulture, "MQMgmtGetInfo returned error: {0:x8}", returnCode));
MsmqException.Assert(propertyValues[0].vt == (short)(VarEnum.VT_VECTOR | VarEnum.VT_LPWSTR), "Unexpected type returned, should be " + (VarEnum.VT_VECTOR | VarEnum.VT_LPWSTR) + ", but was " + ((VarEnum)propertyValues[0].vt) + ".");
IntPtr[] elems = new IntPtr[propertyValues[0].union.calpwstr.cElems];
Marshal.Copy(propertyValues[0].union.calpwstr.pElems, elems, 0, (int)propertyValues[0].union.calpwstr.cElems);
string[] subQueueNames = new string[elems.Length];
for (int i = 0; i < elems.Length; i++)
{
subQueueNames[i] = Marshal.PtrToStringUni(elems[i]);
MsmqNativeMethods.MQFreeMemory(elems[i]);
}
MsmqNativeMethods.MQFreeMemory(propertyValues[0].union.calpwstr.pElems);
return(subQueueNames);
}
public static int GetNumberOfSubqueues(string queueFormatName)
{
int[] propertyIds = new int[1]
{
MsmqNativeMethods.PROPID_MGMT_QUEUE.SUBQUEUE_COUNT,
};
GCHandle aPropId = GCHandle.Alloc(propertyIds, GCHandleType.Pinned);
MsmqNativeMethods.MQPROPVARIANT[] propertyValues = new MsmqNativeMethods.MQPROPVARIANT[1]
{
new MsmqNativeMethods.MQPROPVARIANT()
{
vt = (short)VarEnum.VT_NULL
}
};
GCHandle aPropVar = GCHandle.Alloc(propertyValues, GCHandleType.Pinned);
MsmqNativeMethods.MQQUEUEPROPS queueProperties = new MsmqNativeMethods.MQQUEUEPROPS()
{
cProp = 1,
aPropID = aPropId.AddrOfPinnedObject(),
aPropVar = aPropVar.AddrOfPinnedObject(),
aStatus = IntPtr.Zero
};
uint returnCode = MsmqNativeMethods.MQMgmtGetInfo(Environment.MachineName, "QUEUE=" + queueFormatName, queueProperties);
aPropId.Free();
aPropVar.Free();
if (returnCode == MsmqNativeMethods.MQ_ERROR.QUEUE_NOT_ACTIVE)
{
return(0);
}
MsmqException.Assert(returnCode == 0, string.Format(CultureInfo.InvariantCulture, "MQMgmtGetInfo returned error: {0:x8}", returnCode));
MsmqException.Assert(((VarEnum)propertyValues[0].vt) == VarEnum.VT_UI4, "Unexpected type returned, should be " + VarEnum.VT_UI4 + ", but was " + ((VarEnum)propertyValues[0].vt) + ".");
return((int)propertyValues[0].union.ulVal);
}
public static int GetNumberOfSubqueues(string queueFormatName)
{
int[] propertyIds = new int[1]
{
MsmqNativeMethods.PROPID_MGMT_QUEUE.SUBQUEUE_COUNT,
};
GCHandle aPropId = GCHandle.Alloc(propertyIds, GCHandleType.Pinned);
MsmqNativeMethods.MQPROPVARIANT[] propertyValues = new MsmqNativeMethods.MQPROPVARIANT[1]
{
new MsmqNativeMethods.MQPROPVARIANT() { vt = (short)VarEnum.VT_NULL }
};
GCHandle aPropVar = GCHandle.Alloc(propertyValues, GCHandleType.Pinned);
MsmqNativeMethods.MQQUEUEPROPS queueProperties = new MsmqNativeMethods.MQQUEUEPROPS()
{
cProp = 1,
aPropID = aPropId.AddrOfPinnedObject(),
aPropVar = aPropVar.AddrOfPinnedObject(),
aStatus = IntPtr.Zero
};
uint returnCode = MsmqNativeMethods.MQMgmtGetInfo(Environment.MachineName, "QUEUE=" + queueFormatName, queueProperties);
aPropId.Free();
aPropVar.Free();
if (returnCode == MsmqNativeMethods.MQ_ERROR.QUEUE_NOT_ACTIVE)
{
return 0;
}
MsmqException.Assert(returnCode == 0, string.Format(CultureInfo.InvariantCulture, "MQMgmtGetInfo returned error: {0:x8}", returnCode));
MsmqException.Assert(((VarEnum)propertyValues[0].vt) == VarEnum.VT_UI4, "Unexpected type returned, should be " + VarEnum.VT_UI4 + ", but was " + ((VarEnum)propertyValues[0].vt) + ".");
return (int)propertyValues[0].union.ulVal;
}
public static string[] GetSubqueueNames(string queueFormatName)
{
int[] propertyIds = new int[1]
{
MsmqNativeMethods.PROPID_MGMT_QUEUE.QUEUE_SUBQUEUE_NAMES
};
GCHandle aPropId = GCHandle.Alloc(propertyIds, GCHandleType.Pinned);
MsmqNativeMethods.MQPROPVARIANT[] propertyValues = new MsmqNativeMethods.MQPROPVARIANT[1]
{
new MsmqNativeMethods.MQPROPVARIANT() { vt = (short)VarEnum.VT_NULL }
};
GCHandle aPropVar = GCHandle.Alloc(propertyValues, GCHandleType.Pinned);
MsmqNativeMethods.MQQUEUEPROPS queueProperties = new MsmqNativeMethods.MQQUEUEPROPS()
{
cProp = 1,
aPropID = aPropId.AddrOfPinnedObject(),
aPropVar = aPropVar.AddrOfPinnedObject(),
aStatus = IntPtr.Zero
};
uint returnCode = MsmqNativeMethods.MQMgmtGetInfo(Environment.MachineName, "QUEUE=" + queueFormatName, queueProperties);
aPropId.Free();
aPropVar.Free();
if (returnCode == MsmqNativeMethods.MQ_ERROR.QUEUE_NOT_ACTIVE)
{
return new string[0];
}
MsmqException.Assert(returnCode == 0, string.Format(CultureInfo.InvariantCulture, "MQMgmtGetInfo returned error: {0:x8}", returnCode));
MsmqException.Assert(propertyValues[0].vt == (short)(VarEnum.VT_VECTOR | VarEnum.VT_LPWSTR), "Unexpected type returned, should be " + (VarEnum.VT_VECTOR | VarEnum.VT_LPWSTR) + ", but was " + ((VarEnum)propertyValues[0].vt) + ".");
IntPtr[] elems = new IntPtr[propertyValues[0].union.calpwstr.cElems];
Marshal.Copy(propertyValues[0].union.calpwstr.pElems, elems, 0, (int)propertyValues[0].union.calpwstr.cElems);
string[] subQueueNames = new string[elems.Length];
for (int i = 0; i < elems.Length; i++)
{
subQueueNames[i] = Marshal.PtrToStringUni(elems[i]);
MsmqNativeMethods.MQFreeMemory(elems[i]);
}
MsmqNativeMethods.MQFreeMemory(propertyValues[0].union.calpwstr.pElems);
return subQueueNames;
}
