StreamColl unit

The streamcoll unit contains the implementation of a collection (and corresponding collection item) which implements routines for saving or loading the collection to/from a stream. The collection item should implement 2 routines to implement the streaming; the streaming itself is not performed by the TStreamCollection collection item.

The streaming performed here is not compatible with the streaming implemented in the Classes unit for components. It is independent of the latter and can be used without a component to hold the collection.

The collection item introduces mostly protected methods, and the unit contains a lot of auxiliary routines which aid in streaming.

Classes and records

EStreamColl	class	Exception raised when an error occurs when streaming the collection.
TStreamCollection	class	Collection with stream support.
TStreamCollectionItem	class	Collection item with streaming support.

Procedures and functions

ColReadBoolean	function	Read a boolean value from a stream.
ColReadCurrency	function	Read a currency value from the stream.
ColReadDateTime	function	Read a TDateTime value from a stream.
ColReadFloat	function	Read a floating point value from a stream.
ColReadInteger	function	Read a 32-bit integer from a stream.
ColReadString	function	Read a string from a stream.
ColWriteBoolean	procedure	Write a boolean to a stream.
ColWriteCurrency	procedure	Write a currency value to stream.
ColWriteDateTime	procedure	Write a TDateTime value to stream.
ColWriteFloat	procedure	Write floating point value to stream.
ColWriteInteger	procedure	Write a 32-bit integer to a stream.
ColWriteString	procedure	Write a string value to the stream.

Uses

• Classes
• SysUtils