TMTPTypeNull Class Reference
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class TMTPTypeNull : public MMTPType
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Defines the MTP null (zero length) data type base class.
Constructor & Destructor Documentation
TMTPTypeNull()
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IMPORT_C
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TMTPTypeNull
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(
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)
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Member Functions Documentation
FirstReadChunk(TPtrC8 &)
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IMPORT_C
TInt
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FirstReadChunk
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(
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TPtrC8
&
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aChunk
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)
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const [virtual]
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Initiates a data read sequence on the type by providing a const pointer to the first in the sequence of data chunks that make up the type's data stream. Subsequent chunks in the sequence can be sequentially retrieved using NextReadChunk.
NextReadChunk
.
Parameters
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TPtrC8
& aChunk
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The const pointer to be set to point to the start of the first data chunk. This pointer's length is set to zero if no data chunk exists or a processing error occurs.
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FirstWriteChunk(TPtr8 &)
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IMPORT_C
TInt
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FirstWriteChunk
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(
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TPtr8
&
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aChunk
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)
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[virtual]
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Initiates a data write sequence on the type by providing a non-const pointer to the first in the sequence of data chunks that make up the type's data stream. Subsequent chunks in the sequence can be sequentially retrieved using NextWriteChunk.
NextWriteChunk
.
Parameters
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TPtr8
& aChunk
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The non-const pointer to be set to point to the start of the first data chunk. If successful, the pointer's Length is set to zero, and MaxLength is set to the available capacity of the data chunk. If not successful, the pointer's MaxLength is set to zero.
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NextReadChunk(TPtrC8 &)
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IMPORT_C
TInt
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NextReadChunk
|
(
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TPtrC8
&
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aChunk
|
)
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const [virtual]
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Continues a data read sequence on the type by providing a const pointer to the next in the sequence of data chunks that make up the type's data stream. This data read sequence should have been previously initiated by invoking FirstReadChunk.
FirstReadChunk
.
Parameters
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TPtrC8
& aChunk
|
The const pointer to be set to point to the start of the next data chunk. This pointer's length is set to zero if no data chunk exists or a processing error occurs.
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NextWriteChunk(TPtr8 &)
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IMPORT_C
TInt
|
NextWriteChunk
|
(
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TPtr8
&
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aChunk
|
)
|
[virtual]
|
Continues a data write sequence on the type by providing a non-const pointer to the next in the sequence of data chunks that make up the type's data stream. This data write sequence should have been previously initiated by invoking FirstWriteChunk.
FirstReadChunk
.
Parameters
|
TPtr8
& aChunk
|
The non-const pointer to be set to point to the start of the next data chunk. If successful, the pointer's Length is set to zero, and MaxLength is set to the available capacity of the data chunk. If not successful, the pointer's MaxLength is set to zero..
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SetBuffer(const TDes8 &)
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IMPORT_C void
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SetBuffer
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(
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const
TDes8
&
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aBuffer
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)
|
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Sets the data sink buffer to be used in write data stream operations.
Parameters
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const
TDes8
& aBuffer
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The data sink buffer.
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Size()
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IMPORT_C
TUint64
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Size
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(
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)
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const [virtual]
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Provides the size in bytes of the MTP data type.
Type()
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IMPORT_C
TUint
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Type
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(
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)
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const [virtual]
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Provides the MTP data type identification datacode.
Member Data Documentation
TPtr8
iNullBuffer
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TPtr8
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iNullBuffer
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[private]
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Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights
reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.