Delphi Basics : RTL By functionality : Files

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Type	Name	Summary

Procedure	Append	Open a text file to allow appending of text to the end
Procedure	Assign	Assigns a file handle to a binary or text file
Procedure	AssignFile	Assigns a file handle to a binary or text file
Procedure	AssignPrn	Treats the printer as a text file - an easy way of printing text
Procedure	BlockRead	Reads a block of data records from an untyped binary file
Procedure	BlockWrite	Writes a block of data records to an untyped binary file
Function	ChangeFileExt	Change the extension part of a file name
Procedure	ChDir	Change the working drive plus path for a specified drive
Procedure	Close	Closes an open file
Procedure	CloseFile	Closes an open file
Function	CreateDir	Create a directory
Function	DateTimeToFileDate	Convert a TDateTime value to a File date/time format
Function	DeleteFile	Delete a file specified by its file name
Function	DirectoryExists	Returns true if the given directory exists
Function	DiskFree	Gives the number of free bytes on a specified drive
Function	DiskSize	Gives the size in bytes of a specified drive
Function	Eof	Returns true if a file opened with Reset is at the end
Function	Eoln	Returns true if the current text file is pointing at a line end
Procedure	Erase	Erase a file
Function	ExtractFileDir	Extracts the dir part of a full file name
Function	ExtractFileDrive	Extracts the drive part of a full file name
Function	ExtractFileExt	Extracts the extension part of a full file name
Function	ExtractFileName	Extracts the name part of a full file name
Function	ExtractFilePath	Extracts the path part of a full file name
Function	FileAge	Get the last modified date/time of a file without opening it
Function	FileDateToDateTime	Converts a file date/time format to a TDateTime value
Function	FileExists	Returns true if the given file exists
Function	FileGetAttr	Gets the attributes of a file
Variable	FileMode	Defines how Reset opens a binary file
Function	FilePos	Gives the file position in a binary or text file
Function	FileSearch	Search for a file in one or more directories
Function	FileSetAttr	Sets the attributes of a file
Function	FileSetDate	Set the last modified date and time of a file
Function	FileSize	Gives the size in records of an open file
Function	FindClose	Closes a successful FindFirst file search
Function	FindFirst	Finds all files matching a file mask and attributes
Function	FindNext	Find the next file after a successful FindFirst
Procedure	Flush	Flushes buffered text file data to the file
Function	ForceDirectories	Create a new path of directories
Function	GetCurrentDir	Get the current directory (drive plus directory)
Procedure	GetDir	Get the default directory (drive plus path) for a specified drive
Variable	Input	Defines the standard input text file
Function	IOResult	Holds the return code of the last I/O operation
Procedure	MkDir	Make a directory
Variable	Output	Defines the standard output text file
Procedure	ProcessPath	Split a drive/path/filename string into its constituent parts
Function	PromptForFileName	Shows a dialog allowing the user to select a file
Procedure	Read	Read data from a binary or text file
Procedure	ReadLn	Read a complete line of data from a text file
Function	RemoveDir	Remove a directory
Procedure	Rename	Rename a file
Function	RenameFile	Rename a file or directory
Procedure	Reset	Open a text file for reading, or binary file for read/write
Procedure	ReWrite	Open a text or binary file for write access
Procedure	RmDir	Remove a directory
Procedure	Seek	Move the pointer in a binary file to a new record position
Function	SeekEof	Skip to the end of the current line or file
Function	SeekEoln	Skip to the end of the current line or file
Function	SelectDirectory	Display a dialog to allow user selection of a directory
Function	SetCurrentDir	Change the current directory
Type	Text	Defines a file as a text file
Type	TextFile	Declares a file type for storing lines of text
Type	TOpenDialog	Displays a file selection dialog
Type	TPrintDialog	Class that creates a printer selection and control dialog
Procedure	Truncate	Truncates a file size - removes all data after the current position
Type	TSaveDialog	Displays a dialog for selecting a save file name
Type	TSearchRec	Record used to hold data for FindFirst and FindNext
Type	TStringList	Holds a variable length list of strings
Procedure	Write	Write data to a binary or text file
Procedure	WriteLn	Write a complete line of data to a text file

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