lineSetEquipmentState
Use the lineSetEquipmentState function to set the state of the radio transmitter and receiver.
LONG WINAPI lineSetEquipmentState(
HLINE hLine,
DWORD dwState
);
Parameters
- hLine
The line device handle. The line device handle must have been previously obtained by a call to lineOpen with the proper Telephony API (TAPI) device ID specified and a device-specific extension version was successfully negotiated with lineNegotiateExtVersion. For more information about lineNegotiateExtVersion and lineOpen, see the TAPI Functions API Reference topics in the Microsoft® Windows® CE SDK. - dwState
Indicates the line state. See the Equipment States constants for possible values.
Return Values
Returns a positive request identifier if the function is completed asynchronously, or a negative error number if an error occurs. The dwParam2 parameter of the corresponding LINE_REPLY message is zero if the function succeeds or it is a negative error number if an error occurs. The following are possible return values:
LINEERR_INVALLINEHANDLE
LINEERR_NOMEM
LINEERR_OPERATIONUNAVAIL
LINEERR_OPERATIONFAILED
LINEERR_RESOURCEUNAVAIL
LINEERR_INVALPOINTER
LINEERR_INVALPARAM
LINEERR_UNINITIALIZED
Requirements
Pocket PC Platforms: Pocket PC 2002 and later
OS Versions: Windows CE 3.0 and later
Header: extapi.h
Library: cellcore.lib
See Also
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