Functions

The following table lists functions in this documentation.

	Name	Description
	!=	This is function System::!=.
	__currMul	This is function System::__currMul.
	_CVR_PROBE	This is function System._CVR_PROBE.
	_CVR_STMTPROBE	This is function System._CVR_STMTPROBE.
	_roundToInt64	This is function System::_roundToInt64.
	+	This is function System::+.
	<	This is function System::<.
	<<	This is function System::<<.
	<<	This is function System::<<.
	<<	This is function System::<<.
	<=	This is function System::<=.
	==	This is function System::==.
	>	This is function System::>.
	>=	This is function System::>=.
	>>	This is function System::>>.
	>>	This is function System::>>.
	Abs	Returns an absolute value.
	AcquireExceptionObject	Retains access to exception object.
	AddModuleUnloadProc	This is function System.AddModuleUnloadProc.
	AddModuleUnloadProc	This is function System.AddModuleUnloadProc.
	Addr	Returns a pointer to a specified object.
	AllocMem	This is function System.AllocMem.
	AnsiToUtf8	Converts a string encoded in Ansi to UTF-8.
	Append	Prepares an existing file for adding text to the end.
	ArcTan	Calculates the arctangent of a given number.
	Assert	Tests whether a Boolean expression is true.
	Assert	Tests whether a Boolean expression is true.
	Assigned	Tests for a nil (unassigned) pointer or procedural variable.
	AssignFile	Associates the name of an external file with a file variable.
	AttemptToUseSharedMemoryManager	Attempts to use a shared memory manager.
	BeginThread	Spawns a separate thread of execution.
	BlockRead	Reads one or more records from an open file into a variable.
	BlockRead	Reads one or more records from an open file into a variable.
	BlockWrite	Writes one or more records from a variable to an open file.
	BlockWrite	Writes one or more records from a variable to an open file.
	Break	Causes the flow of control to exit a for, while, or repeat statement.
	ChDir	Changes the current directory.
	ChDir	Changes the current directory.
	Chr	Returns the character for a specified ASCII value.
	Close	Terminates the association between a file variable and an external file.
	CloseFile	Terminates the association between file variable and an external disk file.
	CompToCurrency	Converts a Comp value to a Currency value.
	CompToDouble	Converts a Comp value to a double value.
	Concat	Concatenates two or more strings into one.
	Concat	Concatenates two or more strings into one.
	Concat	Concatenates two or more strings into one.
	Continue	Allows the flow of control to proceed to the next iteration of for, while, or repeat statements.
	Copy	Returns a substring of a string or a segment of a dynamic array.
	Cos	Calculates the cosine of an angle.
	CurrencyToComp	Converts a Currency value to a Comp value.
	Dec	Decrements a variable by 1 or N.
	Dec	Decrements a variable by 1 or N.
	Delete	Removes a substring from a string.
	Dispose	Releases memory allocated for a dynamic variable.
	DoubleToComp	Converts a double value to a Comp.
	DynArrayClear	This is function System.DynArrayClear.
	DynArrayDim	This is function System.DynArrayDim.
	DynArraySetLength	This is function System.DynArraySetLength.
	EndThread	Terminates the execution of a thread.
	EnumModules	Executes a callback for all the modules in an application.
	EnumModules	Executes a callback for all the modules in an application.
	EnumResourceModules	Executes a callback for all resource modules in an application.
	EnumResourceModules	Executes a callback for all resource modules in an application.
	Eof	This is function System.Eof.
	Eof	This is function System.Eof.
	Eoln	Tests whether the file pointer is at the end of a line.
	Eoln	Tests whether the file pointer is at the end of a line.
	Erase	Deletes an external file.
	Error	Generate runtime error.
	ExceptAddr	Returns the address at which the current exception was raised.
	ExceptObject	Returns current exception object.
	Exclude	Removes an element from a Delphi set or removes an event handler in .NET applications.
	Exit	Exits from the current procedure.
	Exp	Returns the exponential of X.
	Exp	Returns the exponential of X.
	FilePos	Returns the current file position.
	FileSize	Returns the number of records in a file.
	FillChar	Fills contiguous bytes with a specified value.
	Finalize	Uninitializes a dynamically allocated variable.
	Finalize	Uninitializes a dynamically allocated variable.
	FindClassHInstance	Returns the instance handle for the module in which a class type is defined.
	FindHInstance	Returns the instance handle of the module that contains a specified address.
	FindResourceHInstance	Returns the instance handle of the resource module associated with a specified HInstance.
	Flush	Empties the buffer of a text file opened for output.
	FPower10	This is function System.FPower10.
	Frac	Returns the fractional part of a real number.
	FreeMem	Disposes of a dynamic variable of a given size.
	FreeMem	Disposes of a dynamic variable of a given size.
	FreeMemory	This is function System.FreeMemory.
	Get8087CW	Returns the value of the 8087 code word.
	GetDir	Returns the current directory.
	GetHeapStatus	Returns the current status of the memory manager.
	GetLastError	Returns the last error reported by an operating system API call.
	GetMem	Creates a dynamic variable and a pointer to the address of the block.
	GetMemory	This is function System.GetMemory.
	GetMemoryManager	Returns the entry points of the currently installed memory manager.
	GetMemoryManager	Returns the entry points of the currently installed memory manager.
	GetMemoryManagerState	Fetches state information for the Memory Manager.
	GetMemoryMap	Fetches the memory map.
	GetMinimumBlockAlignment	Gets the minimum memory block alignment.
	GetModuleFileName	Returns the fully qualified name for a module, given its handle.
	GetVariantManager	Returns the entry points of the routines that define variant behavior.
	Halt	Initiates abnormal termination of a program.
	Halt	Initiates abnormal termination of a program.
	Hi	Returns the high-order byte of X as an unsigned value.
	High	Returns the highest value in the range of an argument.
	Inc	Increments an ordinal value by one or N.
	Inc	Increments an ordinal value by one or N.
	Include	Adds an element to a Delphi set or adds an event handler in .NET applications.
	Initialize	Initializes a dynamically allocated variable.
	Initialize	Initializes a dynamically allocated variable.
	Insert	Inserts a substring into a string beginning at a specified point.
	Int	Returns the integer part of a real number.
	IOResult	Returns the status of the last I/O operation performed.
	IsMemoryManagerSet	Indicates whether the memory manager has been overridden using the SetMemoryManager procedure.
	IsVariantManagerSet	Indicates whether variant support is implemented in an application.
	Length	Returns the number of characters in a string or elements in an array.
	Ln	Returns the natural log of a real expression.
	Lo	Returns the low order Byte of argument X.
	LoadResourceModule	This is function System.LoadResourceModule.
	LoadResString	This is function System.LoadResString.
	Low	Returns the lowest value in a range.
	MkDir	Creates a new subdirectory.
	MkDir	Creates a new subdirectory.
	Move	Copies bytes from a source to a destination.
	New	Creates a new dynamic variable and sets P to point to it.
	OleStrToString	Copies data received from a COM interface to a string.
	OleStrToStrVar	Copies a string from its COM representation to an existing Delphi string.
	Ord	Returns the ordinal value of an ordinal-type expression.
	ParamCount	Returns the number of parameters passed on the command line.
	ParamStr	Returns a specified parameter from the command-line.
	Pi	Returns 3.1415926535897932385.
	Pos	Returns the index value of the first character in a specified substring that occurs in a given string.
	Pos	Returns the index value of the first character in a specified substring that occurs in a given string.
	Pred	Returns the predecessor of the argument.
	Ptr	Converts a specified address to a pointer.
	PUCS4Chars	Converts a UCS4 string to a null-terminated array of UCS4 characters.
	RaiseList	This is function System.RaiseList.
	Random	Generates random numbers within a specified range.
	Random	Generates random numbers within a specified range.
	Randomize	Initializes the random number generator with a random value.
	Read	Read reads data from a file.
	Read	Read reads data from a file.
	Read	Read reads data from a file.
	Read	Read reads data from a file.
	ReadLn	Reads a line of text from a file.
	ReadLn	Reads a line of text from a file.
	ReadLn	Reads a line of text from a file.
	ReadLn	Reads a line of text from a file.
	ReallocMem	Reallocates a dynamic variable.
	ReallocMemory	This is function System.ReallocMemory.
	RegisterExpectedMemoryLeak	Registers an expected memory leak.
	RegisterModule	This is function System.RegisterModule.
	ReleaseExceptionObject	Releases exception object acquired by AcquireExceptionObject.
	RemoveModuleUnloadProc	This is function System.RemoveModuleUnloadProc.
	RemoveModuleUnloadProc	This is function System.RemoveModuleUnloadProc.
	Rename	Changes the name of an external file.
	Rename	Changes the name of an external file.
	Reset	Opens an existing file.
	Reset	Opens an existing file.
	Reset	Opens an existing file.
	Reset	Opens an existing file.
	Rewrite	Creates a new file and opens it.
	Rewrite	Creates a new file and opens it.
	RmDir	Deletes an empty subdirectory.
	RmDir	Deletes an empty subdirectory.
	Round	Returns the value of X rounded to the nearest whole number.
	RunError	Stops execution and generates a runtime error.
	RunError	Stops execution and generates a runtime error.
	Seek	Moves the current position of a file to a specified component.
	SeekEof	Returns the end-of-file status of a file, ignoring whitespace.
	SeekEof	Returns the end-of-file status of a file, ignoring whitespace.
	SeekEoln	Returns the end-of-line status of a file, ignoring whitespace.
	SeekEoln	Returns the end-of-line status of a file, ignoring whitespace.
	Set8087CW	Sets both the control word in the floating point unit and the variable NoErrMsg declared in the system unit.
	SetInOutRes	This is function System.SetInOutRes.
	SetLastError	This is function System.SetLastError.
	SetLength	Sets the length of a string or dynamic-array variable.
	SetLineBreakStyle	Determines the end-of-line and end-of-file conventions for text file I/O.
	SetMemoryManager	Sets entry points of the memory manager.
	SetMemoryManager	Sets entry points of the memory manager.
	SetMinimumBlockAlignment	Sets the minimum memory block alignment.
	SetMultiByteConversionCodePage	Sets the code page used internally whenever multibyte characters are converted to/from WideChar.
	SetRaiseList	This is function System.SetRaiseList.
	SetString	Sets the contents and length of the given string.
	SetTextBuf	Assigns an I/O buffer to a text file.
	SetTextBuf	Assigns an I/O buffer to a text file.
	SetVariantManager	Sets the entry points of routines that define variant behavior.
	ShareMemoryManager	Shares the module's memory manager.
	Sin	Returns the sine of the angle in radians.
	SizeOf	Returns the number of bytes occupied by a variable or type.
	Slice	Returns a sub-section of an array.
	Sqr	Returns the square of a number.
	Sqr	Returns the square of a number.
	Sqrt	Returns the square root of X.
	Str	Formats a string and returns it to a variable.
	Str	Formats a string and returns it to a variable.
	StringOfChar	Returns a string with a specified number of repeating characters.
	StringOfChar	Returns a string with a specified number of repeating characters.
	StringToOleStr	Allocates memory and copies an AnsiStringa string to the OLE format.
	StringToWideChar	Returns a UNICODE string from an AnsiString.
	Succ	Returns the successor of an argument.
	Swap	Exchanges high order byte with the low order byte of an integer or word.
	SysAllocMem	This is function System.SysAllocMem.
	SysFreeMem	Frees the memory pointed to by a specified pointer.
	SysGetMem	Allocates a specified number of bytes and returns a pointer to them.
	SysReallocMem	Returns a pointer to a specified number of bytes, preserving the values pointed to by the Pointer parameter.
	SysRegisterExpectedMemoryLeak	This is function System.SysRegisterExpectedMemoryLeak.
	SysUnregisterExpectedMemoryLeak	This is function System.SysUnregisterExpectedMemoryLeak.
	TextStart	This is function System.TextStart.
	Trunc	Truncates a real number to an integer.
	Truncate	Deletes all the records after the current file position.
	UCS4StringToWideString	Converts a string of 4-byte Unicode characters into a WideString value.
	UnicodeToUtf8	Converts a string of Unicode characters into a UTF-8 string.
	UnicodeToUtf8	Converts a string of Unicode characters into a UTF-8 string.
	UniqueString	Ensures that a given string has a reference count of one.
	UniqueString	Ensures that a given string has a reference count of one.
	UnregisterExpectedMemoryLeak	Unregisters an expected memory leak.
	UnregisterModule	This is function System.UnregisterModule.
	UpCase	Converts a character to uppercase.
	UTF8Decode	Converts a UTF8 string to a Unicode string (WideString).
	UTF8Encode	Converts a WideString value to a UTF8 string.
	Utf8ToAnsi	Converts a UTF8 string to a string of Ansi characters.
	Utf8ToUnicode	Converts a string of UTF-8 characters to a Unicode string.
	Utf8ToUnicode	Converts a string of UTF-8 characters to a Unicode string.
	Val	Converts a string to a numeric representation.
	VarArrayRedim	Resizes a Variant array.
	VarArrayRedim	This is function System::VarArrayRedim.
	VarCast	This is function System::VarCast.
	VarClear	Empties a Variant, so that it is unassigned.
	VarClear	This is function System::VarClear.
	WideCharLenToString	Converts Unicode characters to single or multi byte character data.
	WideCharLenToStrVar	WideCharLenToStrVar converts Unicode characters to single or multi byte character data.
	WideCharToString	Converts null-terminated Unicode string to single or multi byte character data.
	WideCharToStrVar	Converts Unicode string to a single or multi byte character data.
	WideStringToUCS4String	Converts a WideString value to a string of 4-byte Unicode characters.
	Write	Writes to either a typed file or a text file
	Write	Writes to either a typed file or a text file
	Write	Writes to either a typed file or a text file
	Write	Writes to either a typed file or a text file
	WriteLn	Writes to a text file and adds an end-of-line marker.
	WriteLn	Writes to a text file and adds an end-of-line marker.
	WriteLn	Writes to a text file and adds an end-of-line marker.
	WriteLn	Writes to a text file and adds an end-of-line marker.

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