lineSetEquipmentState (Windows Embedded CE 6.0)

1/6/2010

Use the lineSetEquipmentState function to set the state of the radio transmitter and receiver.

Syntax

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 TAPI device ID specified and a device-specific extension version successfully negotiated with lineNegotiateExtVersion.

• dwState
  Indicates the line state. See the Equipment States constants for possible values.

Return Value

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

Remarks

This is a privileged function.

Requirements

See Also

Reference

Extended TAPI Functions
Equipment States