Difference between revisions of "Classes unit"
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The '''Classes''' unit is part of the Free Pascal standard [[RTL|Runtime Library]] and contains abstract classes that form the basis for derived classes, and also implements a number of general purpose concrete classes including: | The '''Classes''' unit is part of the Free Pascal standard [[RTL|Runtime Library]] and contains abstract classes that form the basis for derived classes, and also implements a number of general purpose concrete classes including: | ||
| − | *[[TList]] | + | == Classes Defined == |
| − | *[[TStringList]] | + | *[[TAbstractObjectReader]] |
| − | *[[TFileStream]] | + | **[[TBinaryObjectReader]] |
| − | *[[TStringStream]] | + | *[[TAbstractObjectWriter]] |
| + | **[[TBinaryObjectWriter]] | ||
| + | **[[TTextObjectWriter]] | ||
| + | *[[TBits]] | ||
| + | *[[TFiler]] | ||
| + | **[[TReader]] | ||
| + | **[[TWriter]] | ||
| + | *[[TFPList]] ([[TFPListEnumerator]]) | ||
| + | *[[TList]] - Manages a list of data type [[Pointer]], can search and sort the list, and has an event notification feature. ([[TListEnumerator]]) | ||
| + | *[[TThread]] | ||
| + | *[[TThreadList]] | ||
| + | *[[TParser]] | ||
| + | *[[TPersistent]] | ||
| + | **[[TCollection]] ([[TCollectionEnumerator]]) | ||
| + | ***[[TOwnedCollection]] | ||
| + | **[[TCollectionItem]] | ||
| + | **[[TComponent]] | ||
| + | ***[[TBasicAction]] | ||
| + | ***[[TDataModule]] | ||
| + | **[[TInterfacedPersistent]] | ||
| + | **[[TStrings]] | ||
| + | ***[[TStringList]] | ||
| + | *[[TRecall]] | ||
| + | *[[TStream]] | ||
| + | **[[TCustomMemoryStream]] | ||
| + | ***[[TMemoryStream]] | ||
| + | ****[[TBytesStream]] | ||
| + | ***[[TResourceStream]] | ||
| + | **[[THandleStream]] | ||
| + | ***[[TFileStream]] | ||
| + | **[[TOwnerStream]] | ||
| + | **[[TProxyStream]] | ||
| + | **[[TStringStream]] | ||
| + | == Exception Classes Defined == | ||
| + | *'''EStreamError''' - Exception raised when an error occurs during read or write operations on a stream. | ||
| + | **'''EFCreateError''' - Exception raised when an error occurred during creation of a [[TFileStream]] stream. | ||
| + | **'''EFOpenError''' - Exception raised when an error occurred during creation of a TFileStream. | ||
| + | **'''EFilerError''' - Exception raised by the component streaming system if an error occurs. | ||
| + | ***'''EReadError''' - Exception raised if an error occurs while reading from a stream. | ||
| + | ***'''EWriteError''' - Exception raised when an error occurs during writing to a stream. | ||
| + | ***'''EClassNotFound''' - Exception raised when an unknown class is referenced in a streamed component. | ||
| + | ***'''EInvalidImage''' - Exception raised when the resource header needed for streaming of a component is invalid. | ||
| + | *'''EResNotFound''' - Exception raised when a resource, needed to initialize a component, is not found. | ||
| + | *'''EListError''' (ifndef FPC_TESTGENERICS) - Exception raised when an error occurs in lists handling. | ||
| + | *'''EBitsError''' - Exception raised when an error occurs in a method of [[TBits]]. | ||
| + | *'''EStringListError''' - Exception raised when an error occurs in a method of [[TStrings]]. | ||
| + | *'''EComponentError''' - Exception raised when an error occurs in the component registration routines. | ||
| + | *'''EParserError''' - Exception raised when an error occurs during the parsing of streams. | ||
| + | *'''EOutOfResources''' - Exception raised when the system is out of resources. | ||
| + | |||
| + | == See also == | ||
| + | * [[doc:rtl/classes/|classes unit doc]] | ||
[[Category:RTL]] | [[Category:RTL]] | ||
Latest revision as of 14:45, 18 August 2016
The Classes unit is part of the Free Pascal standard Runtime Library and contains abstract classes that form the basis for derived classes, and also implements a number of general purpose concrete classes including:
Classes Defined
- TAbstractObjectReader
- TAbstractObjectWriter
- TBits
- TFiler
- TFPList (TFPListEnumerator)
- TList - Manages a list of data type Pointer, can search and sort the list, and has an event notification feature. (TListEnumerator)
- TThread
- TThreadList
- TParser
- TPersistent
- TRecall
- TStream
Exception Classes Defined
- EStreamError - Exception raised when an error occurs during read or write operations on a stream.
- EFCreateError - Exception raised when an error occurred during creation of a TFileStream stream.
- EFOpenError - Exception raised when an error occurred during creation of a TFileStream.
- EFilerError - Exception raised by the component streaming system if an error occurs.
- EReadError - Exception raised if an error occurs while reading from a stream.
- EWriteError - Exception raised when an error occurs during writing to a stream.
- EClassNotFound - Exception raised when an unknown class is referenced in a streamed component.
- EInvalidImage - Exception raised when the resource header needed for streaming of a component is invalid.
- EResNotFound - Exception raised when a resource, needed to initialize a component, is not found.
- EListError (ifndef FPC_TESTGENERICS) - Exception raised when an error occurs in lists handling.
- EBitsError - Exception raised when an error occurs in a method of TBits.
- EStringListError - Exception raised when an error occurs in a method of TStrings.
- EComponentError - Exception raised when an error occurs in the component registration routines.
- EParserError - Exception raised when an error occurs during the parsing of streams.
- EOutOfResources - Exception raised when the system is out of resources.
