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nccQueryCapability

Description

Query capability of signaling protocol.

Prototype

DWORD nccQueryCapability ( CTAHD linehd,
NCC_PROT_CAP *protcap,
unsigned size )

linehd The CT Access context handle on which the NCC line is opened using ctaOpenServices.

protcap A pointer to a NCC_PROT_CAP structure to hold returned protocol capability information.

typedef struct
{
 DWORD size ;
 DWORD capabilitymask;
} NCC_PROT_CAP;
size The size of NCC_PROT_CAP structure.

Return Values

Events

Details

This function queries the capabilities of the protocol on a line handle. Use this function to determine if the current protocol supports a given feature. nccQueryCapability returns an NCC_PROT_CAP structure containing capability information for the protocol.

The NCC_PROT_CAP structure contains the following fields:
Field

Description

size

 Number of bytes written at the address pointed to by protcap.

capabilitymask

 A bit mask of features implemented by this protocol. See Section 2.5 for a list of capabilities.


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