ITcVnData

Interface for accessing data.

Inheritance Hierarchy

ITcUnknown
    ITcVnData

ITcVnData 1: Methods

Name

Origin

Description

TcAddRef

ITcUnknown

Increments the reference counter.

TcQueryInterface

ITcUnknown

Get a reference to an implemented interface.

TcRelease

ITcUnknown

Decrements the reference counter.

CheckIfCopy

ITcVnData

Check if the data are a copy (returns S_OK for copies and S_FALSE otherwise).

CheckIfImage

ITcVnData

Check if the data belongs to an image (returns S_OK for images and S_FALSE otherwise).

GetSize

ITcVnData

Gets the size of the data.

CheckDataPointer

ITcVnData

Check if the data pointer is different from 0 (returns S_OK for non-zero data pointers and S_FALSE otherwise).

GetDataPointer

ITcVnData

Gets the data pointer (the obtained data pointer must be released by calling ReleaseDataPointer).

ReleaseDataPointer

ITcVnData

Release the data pointer.

System Requirements