Delphi Basics : RTL By functionality :

Delphi

Basics

Home | Program structure

Type	Name	Summary

Procedure	Abort	Aborts the current processing with a silent exception
Keyword	Begin	Keyword that starts a statement block
Function	BeginThread	Begins a separate thread of code execution
Procedure	Break	Forces a jump out of a single loop
Keyword	Case	A mechanism for acting upon different values of an Ordinal
Function	Chr	Convert an integer into a character
Variable	CmdLine	Holds the execution text used to start the current program
Keyword	Const	Starts the definition of fixed data values
Procedure	Continue	Forces a jump to the next iteration of a loop
Procedure	Dispose	Dispose of storage used by a pointer type variable
Keyword	Do	Defines the start of some controlled action
Keyword	DownTo	Prefixes an decremental for loop target value
Keyword	Else	Starts false section of if, case and try statements
Keyword	End	Keyword that terminates statement blocks
Procedure	EndThread	Terminates a thread with an exit code
Variable	ErrorAddr	Sets the error address when an application terminates
Keyword	Except	Starts the error trapping clause of a Try statement
Procedure	Exit	Exit abruptly from a function or procedure
Variable	ExitCode	Sets the return code when an application terminates
Procedure	FillChar	Fills out a section of storage with a fill character or byte value
Keyword	Finally	Starts the unconditional code section of a Try statement
Function	FindCmdLineSwitch	Determine whether a certain parameter switch was passed
Keyword	For	Starts a loop that executes a finite number of times
Procedure	FreeAndNil	Free memory for an object and set it to nil
Procedure	FreeMem	Free memory storage used by a variable
Keyword	Function	Defines a subroutine that returns a value
Function	GetMem	Get a specified number of storage bytes
Keyword	Goto	Forces a jump to a label, regardless of nesting
Procedure	Halt	Terminates the program with an optional dialog
Keyword	If	Starts a conditional expression to determine what to do next
Keyword	Implementation	Starts the implementation (code) section of a Unit
Keyword	Interface	Used for Unit external definitions, and as a Class skeleton
Function	IsMultiThread	Returns true if the code is running multiple threads
Function	Low	Returns the lowest value of a type or variable
Procedure	New	Create a new pointer type variable
Constant	Nil	A pointer value that is defined as undetermined
Variable	Null	A variable that has no value
Keyword	Of	Linking keyword used in many places
Keyword	On	Defines exception handling in a Try Except clause
Keyword	Packed	Compacts complex data types into minimal storage
Function	ParamCount	Gives the number of parameters passed to the current program
Function	ParamStr	Returns one of the parameters used to run the current program
Directive	Private	Starts the section of private data and methods in a class
Keyword	Procedure	Defines a subroutine that does not return a value
Keyword	Program	Defines the start of an application
Directive	Protected	Starts a section of class private data accesible to sub-classes
Directive	Public	Starts an externally accessible section of a class
Directive	Published	Starts a published externally accessible section of a class
Keyword	Raise	Raise an exception
Procedure	ReallocMem	Reallocate an existing block of storage
Keyword	Repeat	Repeat statements until a ternmination condition is met
Variable	Result	A variable used to hold the return value from a function
Procedure	RunError	Terminates the program with an error dialog
Keyword	Set	Defines a set of up to 255 distinct values
Function	SizeOf	Gives the storage byte size of a type or variable
Keyword	Then	Part of an if statement - starts the true clause
Keyword	ThreadVar	Defines variables that are given separate instances per thread
Keyword	To	Prefixes an incremental for loop target value
Keyword	Try	Starts code that has error trapping
Type	TThreadFunc	Defines the function to be called by BeginThread
Keyword	Type	Defines a new category of variable or process
Keyword	Unit	Defines the start of a unit file - a Delphi module
Keyword	Until	Ends a Repeat control loop
Keyword	Uses	Declares a list of Units to be imported
Keyword	Var	Starts the definition of a section of data variables
Function	VarType	Gives the current type of a Variant variable
Constant	VarTypeMask	Mask for the meta-type part of a Variant variable
Keyword	While	Repeat statements whilst a continuation condition is met
Keyword	With	A means of simplifying references to structured variables

Run Time Library Reference

By first letter

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z $

By Functionality

Data types
	Integers, ordinals Floating point types String, char types Pointer types Other types
Program structure
	Program control Program data Looping Logic Object orientation
Options
	Control options Data options
Files
	Operations Data access File name handling

Strings and chars
	Operations Conversions from Conversions to Displaying
Numbers and sets
	Calculations Conversions from Conversions to Trigonometry Default numbers Displaying
Dates and Times
	Calculations Conversions from Conversions to Values Displaying

By Unit


System SysUtils StrUtils DateUtils	FileCtrl ConvUtils StdConvs Math	Classes Dialogs Types Variants

By Category


Compiler directives Directives Keywords	Types Variables Constants	Functions Procedures