LINEDEVCAPFLAGS
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4/8/2010
These bit-flag constants are a collection of Booleans describing various line device capabilities.
The following table shows the LINEDEVCAPFLAGS constants.
| Value | Description |
|---|---|
LINEDEVCAPFLAGS_CALLHUB = 0x00000400 |
Indicates whether call hubs are supported on this line. This flag is exposed only to applications that negotiate a TAPI version of 3.0 or later. |
LINEDEVCAPFLAGS_CALLHUBTRACKING = 0x00000800 |
Indicates whether call hub tracking is supported on this line. This flag is exposed only to applications that negotiate a TAPI version of 3.0 or later. |
LINEDEVCAPFLAGS_CLOSEDROP = 0x00000020 |
Specifies what happens when an open line is closed while the application has calls active on the line. If TRUE, the service provider drops, clears, all active calls on the line when the last application that has opened the line closes it with lineClose. If FALSE, the service provider does not drop active calls in such cases. Instead, the calls remain active and under control of external devices. A service provider typically sets this bit to FALSE if there is some other device that can keep the call alive, for example, if an analog line has the computer and phone set both connect directly to them in a party-line configuration, the offhook phone will automatically keep the call active even after the computer powers down. Applications should check this flag to determine whether to warn the user, with an OK/Cancel dialog box, that active calls will be lost. |
LINEDEVCAPFLAGS_CROSSADDRCONF = 0x00000001 |
Specifies whether calls on different addresses on this line can be conferenced. |
LINEDEVCAPFLAGS_DIALBILLING = 0x00000040 LINEDEVCAPFLAGS_DIALDIALTONE = 0x00000100 LINEDEVCAPFLAGS_DIALQUIET = 0x00000080 |
These flags indicate whether the "$", "@", or "W" dialable string modifier is supported for a given line device. It is TRUE if the modifier is supported; otherwise, FALSE. The "?", prompt user to continue dialing, is never supported by a line device. These flags allow an application to determine up front which modifiers would result in the generation of a LINEERR. The application has the choice of pre-scanning dialable strings for unsupported characters or of passing the "raw" string from lineTranslateAddress directly to the provider as part of functions such as lineMakeCall or lineDial and let the function generate an error to tell it which unsupported modifier occurs first in the string. |
LINEDEVCAPFLAGS_HIGHLEVCOMP = 0x00000002 |
Specifies whether high-level compatibility information elements are supported on this line. |
LINEDEVCAPFLAGS_LOWLEVCOMP = 0x00000004 |
Specifies whether low-level compatibility information elements are supported on this line. |
LINEDEVCAPFLAGS_MEDIACONTROL = 0x00000008 |
Specifies whether media-control operations are available for calls at this line. |
LINEDEVCAPFLAGS_MSP = 0x00000200 |
Indicates whether a Media Service Provider (MSP) is associated with the line. This flag is exposed only to applications that negotiate a TAPI version of 3.0 or later. |
LINEDEVCAPFLAGS_MULTIPLEADDR = 0x00000010 |
Specifies whether lineMakeCall, lineDial, TSPI_lineMakeCall, or TSPI_lineDial is able to deal with multiple addresses at once, as they are for inverse multiplexing. |
LINEDEVCAPFLAGS_PRIVATEOBJECTS = 0x00001000 |
Indicates whether provider-specific Interfaces have been implemented. This flag is exposed only to applications that negotiate a TAPI version of 3.0 or later. |
Remarks
These constants cannot be extended. All 32 bits are reserved.
Requirements
| Header | tapi.h |
| Windows Embedded CE | Windows CE 3.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |
See Also
Reference
lineClose
lineDial
lineMakeCall
lineTranslateAddress
TSPI_lineDial
TSPI_lineMakeCall