GetUdpTable The GetUdpTable function retrieves the User Datagram Protocol (UDP) listener table. DWORD GetUdpTable( PMIB_UDPTABLE pUdpTable, PDWORD pdwSize, BOOL bOrder );Parameters pUdpTable [out] Pointer to a buffer that receives the UDP listener table as a MIB_UDPTABLE structure. pdwSize [in, out] On input, specifies the size of the buffer pointed to by the pUdpTable parameter. On output, if the buffer is not large enough to hold the returned listener table, the function sets this parameter equal to the required buffer size.bOrder [in] Specifies whether the returned table should be sorted. If this parameter is TRUE, the table is sorted in the order of: IP address Port Return Values If the function succeeds, the return value is NO_ERROR.If the function fails, the return value is one of the following error codes.Return Code Description ERROR_INSUFFICIENT_BUFFER The buffer pointed to by the pUdpTable parameter is not large enough. The required size is returned in the DWORD variable pointed to by the pdwSize parameter. ERROR_INVALID_PARAMETER The pdwSize parameter is NULL, or GetUdpTable is unable to write to the memory pointed to by the pdwSize parameter. ERROR_NOT_SUPPORTED This function is not supported on the operating system in use on the local system. Other Use FormatMessage to obtain the message string for the returned error. Requirements Client: Included in Windows XP, Windows 2000 Professional, Windows NT Workstation 4.0 SP4 and later, Windows Me, and Windows 98. Server: Included in Windows Server 2003, Windows 2000 Server, and Windows NT Server 4.0 SP4 and later. Header: Declared in Iphlpapi.h. Library: Use Iphlpapi.lib.
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The GetUdpTable function retrieves the User Datagram Protocol (UDP) listener table. DWORD GetUdpTable(
PMIB_UDPTABLE pUdpTable,
PDWORD pdwSize,
BOOL bOrder
);Parameters
pUdpTable
[out] Pointer to a buffer that receives the UDP listener table as a MIB_UDPTABLE structure.
pdwSize
[in, out] On input, specifies the size of the buffer pointed to by the pUdpTable parameter.
On output, if the buffer is not large enough to hold the returned listener table, the function sets this parameter equal to the required buffer size.bOrder
[in] Specifies whether the returned table should be sorted. If this parameter is TRUE, the table is sorted in the order of:
IP address
Port
Return Values
If the function succeeds, the return value is NO_ERROR.If the function fails, the return value is one of the following error codes.Return Code Description
ERROR_INSUFFICIENT_BUFFER The buffer pointed to by the pUdpTable parameter is not large enough. The required size is returned in the DWORD variable pointed to by the pdwSize parameter.
ERROR_INVALID_PARAMETER The pdwSize parameter is NULL, or GetUdpTable is unable to write to the memory pointed to by the pdwSize parameter.
ERROR_NOT_SUPPORTED This function is not supported on the operating system in use on the local system.
Other Use FormatMessage to obtain the message string for the returned error.
Requirements
Client: Included in Windows XP, Windows 2000 Professional, Windows NT Workstation 4.0 SP4 and later, Windows Me, and Windows 98.
Server: Included in Windows Server 2003, Windows 2000 Server, and Windows NT Server 4.0 SP4 and later.
Header: Declared in Iphlpapi.h.
Library: Use Iphlpapi.lib.
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