A | B | C |  D | E | F |  G | H | I |  J | K | L |  M | N | O |  P | Q | R |  S | T | U |  V | W | X |  Y | Z


This function sends an Internet Control Message Protocol (ICMP) echo request, and returns one or more replies.

Private Declare Function IcmpSendEcho Lib "ICMP" (ByVal IcmpHandle As Long, ByVal DestAddress As Long, ByVal RequestData As String, ByVal RequestSize As Integer, RequestOptns As IP_OPTION_INFORMATION, ReplyBuffer As IP_ECHO_REPLY, ByVal ReplySize As Long, ByVal TimeOut As Long) As Boolean

Operating Systems Supported
Requires Windows Sockets 2.0


Parameter Information
- IcmpHandle
[in] ICMP handle opened by IcmpCreateFile.

- DestinationAddress
[in] Specifies the destination of the echo request.

- RequestData
[in] Buffer that contains the data to be sent in the request.

- RequestSize
[in] Number of bytes in the RequestData buffer.

- RequestOptions
[in] Pointer to the IP header options for the request; may be NULL.

- ReplyBuffer
[out] Buffer to hold any replies to the request. When the function returns, the buffer will contain one or more ICMP_ECHO_REPLY structures, followed by options and data.

- ReplySize
[out] Size, in bytes, of the reply buffer. The buffer must be large enough to accommodate at least one ICMP_ECHO_REPLY structure plus eight additional bytes (the size of an ICMP error message).

- Timeout
[in] Time, in milliseconds, to wait for replies.

Return Values
The number of replies received and stored in the reply buffer indicates success. Zero indicates failure. Extended error information is available through GetLastError.

Last update: 07 April 2006