Streams, Reader and Writers

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This topic lists all stream, reader and writer classes.

Stream classes in the RTL and VCL

The following table lists all stream classes that can be found in the RTL and VCL:

Class	Description
Data.Win.ADODB.TADOBlobStream	TADOBlobStream is a stream object that reads from and writes to field objects that represent Binary large object (BLOB) fields.
Bde.DBTables.TBlobStream	TBlobStream is a stream object that provides services which allow applications to read from or write to field objects that represent Binary large object (BLOB) fields.
Datasnap.DBClient.TClientBlobStream	TClientBlobStream lets applications read from or write to BLOB fields in a client dataset.
System.Classes.TCustomMemoryStream	TCustomMemoryStream is an abstract base class used as the common ancestor for memory streams.
System.ZLib.TCustomZStream	Abstract ancestor class for compression streams.
System.Classes.TFileStream	TFileStream enables applications to read from and write to a file on disk.
System.Classes.THandleStream	THandleStream enables applications to read from and write to communications resources identified by a handle.
IBBlob.TIBBlobStream	TIBBlobStream is a stream object that lets applications read from or write to field objects that represent Blob fields.
IBCustomDataSet.TIBDSBlobStream	TIBDSBlobStream reads from and writes to BLOB fields on behalf of an IB Dataset.
System.Classes.TMemoryStream	TMemoryStream is a stream that stores its data in dynamic memory.
Vcl.AxCtrls.TOleStream	TOleStream reads and writes information over a streaming interface that is provided by an OLE object.
System.Classes.TResourceStream	TResourceStream is a memory stream that provides access to the compiled resources in an application.
Data.SqlExpr.TSQLBlobStream	TSQLBlobStream lets applications read from or write to BLOB fields in a client dataset.
System.Classes.TStream	TStream is the base class type for stream objects that can read from or write to various kinds of storage media, such as disk files, dynamic memory, and so on.
System.Classes.TStringStream	TStringStream provides file-like access to information stored as a long string.
System.Win.ScktComp.TWinSocketStream	TWinSocketStream is a stream that provides services which allow applications to read from or write to socket connections.
System.ZLib.TZCompressionStream	Compresses data as it is written to the stream.
System.ZLib.TZDecompressionStream	Decompresses data that was written to a TZCompressionStream object.

Writer classes in the RTL and VCL

The following table lists all writer classes that can be found in the RTL and VCL:

Class	Description
System.Classes.TBinaryWriter	Writer for binary data.
System.Classes.TStreamWriter	Writer for characters to stream.
System.Classes.TStringWriter	Writer for a string.
System.Classes.TTextWriter	Writer of sequence of characters.
System.Classes.TWriter	TWriter is a specialized filer object that writes data to its associated stream.

Reader classes in the RTL and VCL

The following table lists all reader classes that can be found in the RTL and VCL:

Member	Description
System.Classes.TReader	TReader is a specialized filer that reads component data from an associated stream.
System.Classes.TStreamReader	Character stream reader.
System.Classes.TStringReader	Reader for a string.
System.Classes.TTextReader	Reader for sequence of characters.
System.Classes.TBinaryReader	Reader for binary data.

See Also

• API Categories Index
• Using Streams

Code Examples

• ComponentToString (Delphi)
• TReader (Delphi)
• TWriter (Delphi)