TMemoryStream

[Properties (by Name)][Methods (by Name)][Events (by Name)]

Stream which keeps data in memory.

Declaration

Source position: objects.pp line 401

Type
  TMemoryStream = object (TStream)
    BlkCount : LongInt;
    BlkSize : Word;
    MemSize : LongInt;
    BlkList : PPointerArray;
    constructor Init(ALimit: LongInt; ABlockSize: Word);
    destructor Done;  Virtual;
    procedure Truncate;  Virtual;
    procedure Read(var Buf; Count: LongInt);  Virtual;
    procedure Write(var Buf; Count: LongInt);  Virtual;
  private
    function ChangeListSize(ALimit: LongInt) : Boolean;
  end
  ;

Description

The TMemoryStream object implements a stream that stores it's data in memory. The data is stored on the heap, with the possibility to specify the maximum amount of data, and the size of the memory blocks being used.

Members

Member	Type	Visibility	Description
BlkCount	Field	default	Number of allocated memory blocks
BlkList	Field	default	Pointer to list of allocated blocks.
BlkSize	Field	default	Size of one memory block
ChangeListSize	Method	private
Done	Method	default	Clean up memory and destroy the object instance.
Init	Method	default	Initialize memory stream, reserves memory for stream data.
MemSize	Field	default	Total memory size
Read	Method	default	Read data from the stream to a location in memory.
Truncate	Method	default	Set the stream size to the current position.
Write	Method	default	Write data to the stream.

Inheritance

Class	Description
TMemoryStream	Stream which keeps data in memory.

See also

Name	Description
LongInt	A signed 32-bits integer
LongInt	A signed 32-bits integer
TPointerArray	Array with maximum allowed number of pointers
TStream	Base stream class
Word	An unsigned 16-bits integer

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