Visual Basic Code Example: Retrieving MSMQQueueInfo.Quota
Applies To: Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server Technical Preview, Windows Vista
This example provides a function that receives the path name of an existing queue and returns the MSMQQueueInfo.Quota property for it, which can be used to display the maximum size of the queue.
This function can return the maximum size of a local private queue from information stored on the local computer, but must retrieve information stored in the directory service to return the maximum size of a local or remote public queue. This function cannot be used to obtain the maximum size of a remote private queue.
To retrieve MSMQQueueInfo.Quota
Declare the objects needed to retrieve queue properties. This routine declares an MSMQQueueInfo object.
Create the MSMQQueueInfo object. This example then uses MSMQQueueInfo.PathName to set the path name to the string passed to the function.
Call MSMQQueueInfo.Refresh to obtain the current registered settings of the queue properties. Note that this call retrieves the settings of all properties of the queue with the path name set. If no such queue exists, an error message is displayed.
Return the local setting of MSMQQueueInfo.Quota.
Code Example
The following code example can be run on all versions of Message Queuing.
Function GetQueueQuota( _
strPathname As String _
) As Long
Dim qinfo As MSMQQueueInfo
' Create the MSMQQueueInfo object.
Set qinfo = New MSMQQueueInfo
qinfo.PathName = strPathname
On Error GoTo ErrorHandler
' Retrieve the internally registered property values.
qinfo.Refresh
' Return the local setting of MSMQQueueInfo.Quota.
GetQueueQuota = qinfo.Quota
Exit Function
ErrorHandler:
MsgBox "Error " + Hex(Err.Number) + " was returned." _
+ Chr(13) + Err.Description
End Function