WapPing (Compact 2013)
3/26/2014
This function pings another WAP client.
Syntax
HRESULT WapPing(
const WAP_ADDRESS* const pwaAddress,
const WORD wIdentifier,
const DWORD dwSendDataSize,
DWORD* const pdwReceiveDataSize,
const DWORD dwTimeout
);
Parameters
- pwaAddress
[in] Pointer to a WAP_ADDRESS structure that contains the destination address of the ping message.
- wIdentifier
[in] Identifier for the WCMP-ECHO-REQUEST message. For more information, see WAP Specification WAP-202, "Wireless Control Message Protocol (WCMP)."
- dwSendDataSize
[in] The number of bytes in the outgoing packet.
- pdwReceiveDataSize
[in] Pointer to the number of bytes in the received packet.
- dwTimeout
[in] The number of milliseconds to wait for the ping response.
Return Value
Value |
Description |
|---|---|
S_OK |
Indicates the function was successful. |
E_INVALIDARG |
Indicates one or more invalid arguments. |
E_OUTOFMEMORY |
Indicates an out-of-memory error. |
E_UNEXPECTED |
Indicates an unexpected failure. |
E_FAIL |
Indicates an unspecified failure. |
Remarks
Depending on the bearer type of the pwaAddress parameter, this function will either send an Internet Control Message Protocol (ICMP) message over the User Datagram Protocol (UDP) bearer or a Wireless Control Message Protocol (WCMP) message over the Short Message Service (SMS) bearer. Note that the payload limit for the SMS bearer is only 140 bytes, instead of the 65,528 bytes allowed over UDP. Success of this function does no depend on receiving the correct amount of data or the correct data bytes.
Requirements
Header |
wap.h |
Library |
Wap.lib |