Class IntPtrDataProvider

Summary description for IntPtrDataProvider.

Inheritance

System.Object

DataProvider

IntPtrDataProvider

UnsafeDataProvider

Implements

System.IDisposable

Inherited Members

DataProvider.Dispose()

DataProvider.Dispose(Boolean)

DataProvider.Read(BinaryReader, Int32, Int32, Byte[], IDecryptor)

DataProvider.ReadAddr(Int32)

DataProvider.ReadAddrAsRectangle(Int32)

DataProvider.ReadArray(Int32, Byte[])

DataProvider.ReadArray(Int32, Byte[], Int32)

DataProvider.ReadBit(Int32, Int32)

DataProvider.ReadBoolean(Int32)

DataProvider.ReadDouble(Int32)

DataProvider.ReadString(Int32, Int32, Int32, Boolean)

DataProvider.ReadString16Bit(Int32, Int32)

DataProvider.ReadString16BitUpdateOffset(Int32)

DataProvider.ReadString8Bit(Int32, Int32)

DataProvider.ReadStringUpdateOffset(Int32, Int32)

DataProvider.ReadUInt16(Int32)

DataProvider.ReadUInt32(Int32)

DataProvider.WriteAddr(Int32, Rectangle)

DataProvider.WriteAddr(Int32, TAddr)

DataProvider.WriteBytes(Int32, Byte[])

DataProvider.WriteInto(BinaryWriter, Int32, Int32, Byte[])

DataProvider.WriteString16Bit(Int32, String)

DataProvider.WriteString16Bit(Int32, String, Boolean)

DataProvider.WriteString16BitUpdateOffset(Int32, String)

DataProvider.WriteString16BitUpdateOffset(Int32, String, Boolean)

DataProvider.WriteString8BitUpdateOffset(Int32, String)

DataProvider.WriteStringNoLenUpdateOffset(Int32, String)

DataProvider.WriteUInt32(Int32, UInt32)

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Syncfusion.XlsIO.Parser.Biff_Records

Assembly: Syncfusion.XlsIO.Base.dll

Syntax

public class IntPtrDataProvider : DataProvider, IDisposable

Constructors

IntPtrDataProvider(IntPtr)

Default constructor to prevent creation of items without arguments.

Declaration

public IntPtrDataProvider(IntPtr heapHandle)

Parameters

Type	Name	Description
System.IntPtr	heapHandle

Fields

m_lPointer

m_ptrData converted into Int64 value.

Declaration

protected long m_lPointer

Field Value

Type
System.Int64

Properties

Capacity

Returns size of the internal buffer. Read-only.

Declaration

public override int Capacity { get; }

Property Value

Type
System.Int32

Overrides

DataProvider.Capacity

DataPointer

Gets / sets internal data storage.

Declaration

public IntPtr DataPointer { get; set; }

Property Value

Type
System.IntPtr

HeapHandle

Returns heap handle.

Declaration

public IntPtr HeapHandle { get; }

Property Value

Type
System.IntPtr

IsCleared

Declaration

public override bool IsCleared { get; }

Property Value

Type
System.Boolean

Overrides

DataProvider.IsCleared

Methods

Clear()

Clears internal storage if allowed.

Declaration

public override void Clear()

Overrides

DataProvider.Clear()

CopyMemory(Int32, Int32, Int32)

Copies memory inside internal buffer.

Declaration

public override void CopyMemory(int iDestOffset, int iSourceOffset, int iMemorySize)

Parameters

Type	Name	Description
System.Int32	iDestOffset	Destination offset.
System.Int32	iSourceOffset	Source offset.
System.Int32	iMemorySize	Memory size.

Overrides

DataProvider.CopyMemory(Int32, Int32, Int32)

CopyTo(Int32, DataProvider, Int32, Int32)

Copies data from internal storage into specified provider.

Declaration

public override void CopyTo(int iSourceOffset, DataProvider destination, int iDestOffset, int iLength)

Parameters

Type	Name	Description
System.Int32	iSourceOffset	Source offset.
DataProvider	destination	Destination provider.
System.Int32	iDestOffset	Destination offset.
System.Int32	iLength	Size in bytes of the data to copy.

Overrides

DataProvider.CopyTo(Int32, DataProvider, Int32, Int32)

CopyTo(Int32, Byte[], Int32, Int32)

Copies data from internal storage into specified

Declaration

public override void CopyTo(int iSourceOffset, byte[] arrDestination, int iDestOffset, int iLength)

Parameters

Type	Name	Description
System.Int32	iSourceOffset	Source offset.
System.Byte[]	arrDestination	Destination array.
System.Int32	iDestOffset	Destination offset.
System.Int32	iLength	Size in bytes of the data to copy.

Overrides

DataProvider.CopyTo(Int32, Byte[], Int32, Int32)

CreateProvider()

Creates provider of the same type.

Declaration

public override DataProvider CreateProvider()

Returns

Type	Description
DataProvider	Created provider object.

Overrides

DataProvider.CreateProvider()

EnsureCapacity(Int32)

Resizes internal storage if necessary.

Declaration

public override int EnsureCapacity(int size)

Parameters

Type	Name	Description
System.Int32	size	Required size.

Returns

Type
System.Int32

Overrides

DataProvider.EnsureCapacity(Int32)

EnsureCapacity(Int32, Int32)

Resizes the internal storage if needed

Declaration

public override int EnsureCapacity(int size, int forceAdd)

Parameters

Type	Name	Description
System.Int32	size
System.Int32	forceAdd

Returns

Type
System.Int32

Overrides

DataProvider.EnsureCapacity(Int32, Int32)

Finalize()

Declaration

protected void Finalize()

MoveMemory(Int32, Int32, Int32)

Moves memory inside internal buffer.

Declaration

public override void MoveMemory(int iDestOffset, int iSourceOffset, int iMemorySize)

Parameters

Type	Name	Description
System.Int32	iDestOffset	Destination offset.
System.Int32	iSourceOffset	Source offset.
System.Int32	iMemorySize	Memory size.

Overrides

DataProvider.MoveMemory(Int32, Int32, Int32)

OnDispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration

protected override void OnDispose()

Overrides

DataProvider.OnDispose()

Read(BinaryReader, Int32, Int32, Byte[])

Reads data from BinaryReader.

Declaration

public override void Read(BinaryReader reader, int iOffset, int iLength, byte[] arrBuffer)

Parameters

Type	Name	Description
System.IO.BinaryReader	reader	Reader to get data from.
System.Int32	iOffset	Offset in the internal data to start filling from.
System.Int32	iLength	Number of bytes to read.
System.Byte[]	arrBuffer	Temporary buffer to use.

Overrides

DataProvider.Read(BinaryReader, Int32, Int32, Byte[])

ReadByte(Int32)

Returns byte value at the specified position.

Declaration

public override byte ReadByte(int iOffset)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.

Returns

Type	Description
System.Byte	Byte at the specified position.

Overrides

DataProvider.ReadByte(Int32)

ReadInt16(Int32)

Returns Int16 value at the specified position.

Declaration

public override short ReadInt16(int iOffset)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.

Returns

Type	Description
System.Int16	Int16 value at the specified position.

Overrides

DataProvider.ReadInt16(Int32)

ReadInt32(Int32)

Returns Int32 value at the specified position.

Declaration

public override int ReadInt32(int iOffset)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.

Returns

Type	Description
System.Int32	Int32 value at the specified position.

Overrides

DataProvider.ReadInt32(Int32)

ReadInt64(Int32)

Returns Int32 value at the specified position.

Declaration

public override long ReadInt64(int iOffset)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.

Returns

Type	Description
System.Int64	Int32 value at the specified position.

Overrides

DataProvider.ReadInt64(Int32)

ReadString(Int32, Int32, Encoding, Boolean)

Reads string from data provider.

Declaration

public override string ReadString(int offset, int stringLength, Encoding encoding, bool isUnicode)

Parameters

Type	Name	Description
System.Int32	offset	Offset to the first character.
System.Int32	stringLength	Number of bytes in the string.
System.Text.Encoding	encoding	Encoding to use.
System.Boolean	isUnicode	Indicates is unicode encoding.

Returns

Type	Description
System.String	Extracted string.

Overrides

DataProvider.ReadString(Int32, Int32, Encoding, Boolean)

WriteBit(Int32, Boolean, Int32)

Sets one bit in specified byte in internal record data array.

Declaration

public override void WriteBit(int offset, bool value, int bitPos)

Parameters

Type	Name	Description
System.Int32	offset	Offset of the byte in the data array.
System.Boolean	value	Value of bit.
System.Int32	bitPos	Bit position in the byte.

Overrides

DataProvider.WriteBit(Int32, Boolean, Int32)

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	If bitPos is less than zero or more than 7.

WriteByte(Int32, Byte)

Writes byte value at the specified position.

Declaration

public override void WriteByte(int iOffset, byte value)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.
System.Byte	value	Byte value to write at the specified position.

Overrides

DataProvider.WriteByte(Int32, Byte)

WriteBytes(Int32, Byte[], Int32, Int32)

Sets bytes in internal record data array values.

Declaration

public override void WriteBytes(int offset, byte[] value, int pos, int length)

Parameters

Type	Name	Description
System.Int32	offset	Offset in internal record data array to start from.
System.Byte[]	value	Array of bytes to set.
System.Int32	pos	Position in value array to the data that will be set.
System.Int32	length	Length of the data.

Overrides

DataProvider.WriteBytes(Int32, Byte[], Int32, Int32)

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	If value array is NULL.
System.ArgumentOutOfRangeException	If pos or length would be less than zero or their sum would be more than size of value array.
System.ArgumentOutOfRangeException	If internal record data array is too small for receiving value array and AutoGrowData is False.

WriteDouble(Int32, Double)

Writes Int32 value at the specified position.

Declaration

public override void WriteDouble(int iOffset, double value)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.
System.Double	value	Double value to write at the specified position.

Overrides

DataProvider.WriteDouble(Int32, Double)

WriteInt16(Int32, Int16)

Writes Int16 value at the specified position.

Declaration

public override void WriteInt16(int iOffset, short value)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.
System.Int16	value	Int16 value to write at the specified position.

Overrides

DataProvider.WriteInt16(Int32, Int16)

WriteInt32(Int32, Int32)

Writes Int32 value at the specified position.

Declaration

public override void WriteInt32(int iOffset, int value)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.
System.Int32	value	Int32 value to write at the specified position.

Overrides

DataProvider.WriteInt32(Int32, Int32)

WriteInt64(Int32, Int64)

Writes Int64 value at the specified position.

Declaration

public override void WriteInt64(int iOffset, long value)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.
System.Int64	value	Int64 value to write at the specified position.

Overrides

DataProvider.WriteInt64(Int32, Int64)

WriteStringNoLenUpdateOffset(ref Int32, String, Boolean)

Sets string in internal data without string length, updates offset parameter (adds string length).

Declaration

public override void WriteStringNoLenUpdateOffset(ref int offset, string value, bool unicode)

Parameters

Type	Name	Description
System.Int32	offset	Offset to the string.
System.String	value	Value of the string.
System.Boolean	unicode	Indicates whether string must be stored using Unicode encoding or not.

Overrides

DataProvider.WriteStringNoLenUpdateOffset(ref Int32, String, Boolean)

WriteUInt16(Int32, UInt16)

Writes Int16 value at the specified position.

Declaration

[CLSCompliant(false)]
public override void WriteUInt16(int iOffset, ushort value)

Parameters

Type	Name	Description
System.Int32	iOffset	Offset to the required value.
System.UInt16	value	Int16 value to write at the specified position.

Overrides

DataProvider.WriteUInt16(Int32, UInt16)

ZeroMemory()

Writes zeros inside memory block.

Declaration

public override void ZeroMemory()

Overrides

DataProvider.ZeroMemory()

Implements

System.IDisposable