SysUtils Namespace

This is namespace SysUtils.

Name	Description
Classes	The following table lists classes in this documentation.
Interfaces	The following table lists interfaces in this documentation.
Functions	The following table lists functions in this documentation.
Structs, Records, Enums	The following table lists structs, records, enums in this documentation.
Types	The following table lists types in this documentation.
Variables	The following table lists variables in this documentation.
Constants	The following table lists constants in this documentation.

Classes

	Name	Description
	EAbort	EAbort is the exception class for errors that should not display an error message dialog box.
	EAbstractError	EAbstractError is the exception class for attempts to call an abstract method.
	EAccessViolation	EAccessViolation is the exception class for invalid memory access errors.
	EAssertionFailed	EAssertionFailed is the exception class for Delphi assertion failure.
	EControlC	EControlC is the exception class for user interrupts.
	EConvertError	EConvertError is the exception class for string and object conversion errors.
	EDivByZero	EDivByZero is the exception class for integer divide-by-zero errors.
	EExternal	EExternal is the exception class that captures external error information.
	EExternalException	EExternalException is the exception class for invalid exception codes.
	EHeapException	EHeapException is the exception class for errors related to heap-allocated memory.
	EInOutError	EInOutError is the exception class for file input/output errors.
	EIntError	EIntError is the base class for integer math error exceptions.
	EIntfCastError	EIntfCastError is the exception class for interface casting errors.
	EIntOverflow	EIntOverflow is the exception class for integer calculations whose results are too large to fit in the allocated register.
	EInvalidCast	EInvalidCast is an exception class for typecasting errors.
	EInvalidContainer	This is class SysUtils.EInvalidContainer.
	EInvalidInsert	This is class SysUtils.EInvalidInsert.
	EInvalidOp	EInvalidOp is the exception class for undefined floating-point operations.
	EInvalidPointer	EInvalidPointer is the exception class for invalid pointer operations.
	EMathError	EMathError is the base exception class for floating-point math errors.
	EOSError	EOSError is the exception class for operating system errors.
	EOutOfMemory	EOutOfMemory is the exception class for unsuccessful attempts to allocate memory.
	EOverflow	EOverflow is the exception class for floating-point register overflows.
	EPackageError	EPackageError is the exception class for package-related errors.
	EPrivilege	EPrivilege is the exception class for processor privilege violations.
	EPropReadOnly	EPropReadOnly is the exception class for invalid attempts to write to a property using OLE automation.
	EPropWriteOnly	EPropWriteOnly is the exception class for invalid attempts to read a property using OLE automation.
	ERangeError	ERangeError is the exception for Delphi range errors.
	ESafecallException	ESafecallException is the exception for problems with the safecall calling convention.
	EStackOverflow	EStackOverflow is the exception class for stack overflows.
	EUnderflow	EUnderflow is the exception class for values that are too small to be represented with a floating-point variable.
	EVariantError	EVariantError is the exception class for errors involving Variant data types.
	EWin32Error	EWin32Error is the exception class for Windows errors.
	Exception	Exception is the base class for all runtime exceptions.
	EZeroDivide	EZeroDivide is the exception class for floating-point divide-by-zero errors.
	TLanguages	TLanguages lists all available Windows locales.
	TMultiReadExclusiveWriteSynchronizer	TMultiReadExclusiveWriteSynchronizer protects memory in a multi-threaded application.
	TSimpleRWSync	This is class SysUtils.TSimpleRWSync.
	TThreadLocalCounter	This is class SysUtils.TThreadLocalCounter.

Constants

Name	Description
DateDelta	Specifies the difference between TDateTime and TTimeStamp starting values.
DefaultFalseBoolStr	Specifies the default string representation of the boolean false value.
DefaultTrueBoolStr	Specifies the default string representation of the boolean true value.
DriveDelim	Specifies the character used to separate the Windows drive from the path in a file name.
faAnyFile	Specifies any file type.
faArchive	Specifies only Windows archived file types.
faDirectory	Specifies only directory 'file' types.
faHidden	Specifies only hidden file types.
faReadOnly	Specifies only read only file types.
faSymLink	Specifies only symbolic link file types.
faSysFile	Specifies only system file types.
faVolumeID	Specifies Volume ID file types.
fmOpenRead	Specifies a file should be opened for reading only.
fmOpenReadWrite	Specifies a file should be opened for reading and writing.
fmOpenWrite	Specifies a file should be opened for writing only.
fmShareCompat	This is constant SysUtils.fmShareCompat.
fmShareDenyNone	This is constant SysUtils.fmShareDenyNone.
fmShareDenyRead	This is constant SysUtils.fmShareDenyRead.
fmShareDenyWrite	This is constant SysUtils.fmShareDenyWrite.
fmShareExclusive	This is constant SysUtils.fmShareExclusive.
HoursPerDay	Specifies the number of hours in a day.
MaxCurrency	Defines the largest value supported for Currency data types.
MaxDateTime	Specifies the highest supported TDateTime value.
MaxEraCount	This is constant SysUtils.MaxEraCount.
MinCurrency	Defines the largest negative value supported for Currency data types.
MinDateTime	Specifies the earliest supported TDateTime value.
MinsPerDay	Specifies the number of minutes in a day.
MinsPerHour	Specifies the number of minutes in an hour.
MonthDays	An array specifying how many days are in a month.
MSecsPerDay	Specifies the number of milliseconds in a day.
MSecsPerSec	Specifies the number of milliseconds in a second.
PathDelim	Specifies a path delimiter character.
PathSep	Specifies the character used to separate a sequence of file or directory names.
pfBCB4Produced	Indicates that a package was produced by via C++.
pfConsumerBCB	Indicates that C++ can be a consumer of a package.
pfConsumerCompat	This is constant SysUtils.pfConsumerCompat.
pfConsumerDelphi	Indicates that Delphi can be a consumer of a package.
pfConsumerMask	Indicates the comsumer of a package.
pfDelphi4Produced	Indicates that a package was produced by Delphi 4 or later.
pfDesignOnly	Indicates that a package was compiled with {$DESIGNONLY ON}.
pfExeModule	Indicates that a module is an executable.
pfIgnoreDupUnits	Indicates that a package was compiled with {$DUPLICATEENABLE ON}.
pfLibraryModule	Indicates that a module is a library.
pfModuleTypeMask	Indicates that a package is a module.
pfNeverBuild	Indicates that a package was compiled with the -z flag.
pfPackageModule	Indicates that a module is a package.
pfProducerMask	Indicates the producer of a package.
pfProducerUndefined	Indicates that a package was produced by an unknown developmemt environment.
pfRunOnly	Indicates that a package was compiled with {$RUNONLY ON}.
pfV3Produced	Indicates that a package was produced by Delphi 3 or later.
SecsPerDay	Specifies the number of seconds in a day.
SecsPerMin	Specifies the number of seconds in a minute.
SwitchChars	Specifies the prefix character(s) for program command line arguments.
ufImplicitUnit	Indicates that a unit was implicitly imported into a package.
ufMainUnit	Indicates that a unit is the main one in a project.
ufOrgWeakUnit	This is constant SysUtils.ufOrgWeakUnit.
ufPackageUnit	Indicates that a unit is a package.
ufWeakPackageUnit	This is constant SysUtils.ufWeakPackageUnit.
ufWeakUnit	Indicates that a unit is a weak unit.
UnixDateDelta	Specifies the difference between TDateTime and Lunix date/time origins.

Functions

	Name	Description
	Abort	Raises a silent exception.
	AddExitProc	Adds a procedure to the exit list.
	AddTerminateProc	Adds a terminate procedure to the system list of termination procedures.
	AdjustLineBreaks	Adjusts line break characters to reflect Windows or Linux style.
	AnsiCompareFileName	Compares file names based on the current locale.
	AnsiCompareStr	Compares strings based on the current locale with case sensitivity.
	AnsiCompareText	Compares strings based on the current locale without case sensitivity.
	AnsiDequotedStr	Converts a quoted string into an unquoted string
	AnsiExtractQuotedStr	Converts a quoted string into an unquoted string.
	AnsiLastChar	Returns a pointer to the last character in a string.
	AnsiLowerCase	Returns a string that is a copy of the given string converted to lower case.
	AnsiLowerCaseFileName	Converts a file name to lower case.
	AnsiPos	Locates the position of a substring.
	AnsiQuotedStr	Returns the quoted version of a string.
	AnsiSameStr	Compares strings based on the current locale with case sensitivity.
	AnsiSameText	Compares strings based on the current locale without case sensitivity.
	AnsiStrComp	Compares null-terminated character strings.
	AnsiStrIComp	Compares null terminated character strings case insensitively.
	AnsiStrLastChar	Returns a pointer to the last character in a null-terminated string.
	AnsiStrLComp	Compares the first MaxLen bytes of two null-terminated strings, case-sensitively.
	AnsiStrLIComp	Compares two strings, case-insensitively, up to the first MaxLen bytes.
	AnsiStrLower	Converts all characters in a null-terminated string to lower case.
	AnsiStrPos	Returns a pointer to the first occurrence of a substring.
	AnsiStrRScan	Returns a pointer to the last occurrence of a specified character in a specified string.
	AnsiStrScan	Returns a pointer to first occurrence of a character in a string.
	AnsiStrUpper	Converts all characters in a null-terminated string to upper case.
	AnsiUpperCase	Converts a string to upper case.
	AnsiUpperCaseFileName	Converts a file name to upper case.
	AppendStr	Appends a dynamically allocated string to an existing string.
	AssignStr	Assigns a new dynamically allocated string to a specified pointer.
	Beep	Emits a message beep.
	BoolToStr	Converts a Boolean value to a string.
	ByteToCharIndex	Returns the position of the character that contains a specified byte in a string.
	ByteToCharLen	Returns the number of characters fully contained in the first MaxLen bytes of a string.
	ByteType	Indicates whether a byte in a string is a single byte character, the first byte of a double byte character, or the second byte of a double byte character.
	CallTerminateProcs	Calls all of the functions in the termination procedure list.
	ChangeFileExt	Changes the extension of a file name.
	ChangeFilePath	Changes the path of a file name.
	CharLength	Returns number of bytes used by a character.
	CharToByteIndex	Returns the 1-based index of the first byte of a specified character in a string.
	CharToByteLen	Returns the length, in bytes, of the first MaxLen characters of a string.
	CheckWin32Version	Check to see if you are running on a specific level (or higher) of the Windows 32 bit Operating System.
	CompareMem	Performs a binary comparison of two memory images.
	CompareStr	Compares two strings case sensitively.
	CompareStr	Compares two strings case sensitively.
	CompareText	Compares two strings by ordinal value without case sensitivity.
	CompareText	Compares two strings by ordinal value without case sensitivity.
	CreateDir	Creates a new directory.
	CreateGUID	Creates a globally unique identifier.
	CurrentYear	Returns the current year.
	CurrToStr	Formats a Currency value as a string.
	CurrToStr	Formats a Currency value as a string.
	CurrToStrF	Converts a Currency value to a string, using a specified format.
	CurrToStrF	Converts a Currency value to a string, using a specified format.
	Date	Returns the current date.
	DateTimeToFileDate	Converts a TDateTime value to an OS timestamp value.
	DateTimeToStr	Converts a TDateTime value to a string.
	DateTimeToStr	Converts a TDateTime value to a string.
	DateTimeToString	Converts a TDateTime value to a string using a specified Format.
	DateTimeToString	Converts a TDateTime value to a string using a specified Format.
	DateTimeToSystemTime	Converts a TDateTime value into the Win32 API's system time type.
	DateTimeToTimeStamp	Converts a TDateTime value into the corresponding TTimeStamp value.
	DateToStr	Converts a TDateTime value to a string.
	DateToStr	Converts a TDateTime value to a string.
	DayOfWeek	Returns the day of the week for a specified date.
	DecodeDate	Returns Year, Month, and Day values for a TDateTime value.
	DecodeDateFully	Returns Year, Month, and Day, and Day-of-Week values for a TDateTime value.
	DecodeTime	Breaks a TDateTime value into hours, minutes, seconds, and milliseconds.
	DeleteFile	Deletes a file from disk.
	DirectoryExists	Determines whether a specified directory exists.
	DiskFree	Returns the number of free bytes on a specified drive.
	DiskSize	Returns the size, in bytes, of a specified drive.
	DisposeStr	Disposes of a string pointer that was allocated using NewStr.
	EncodeDate	Returns a TDateTime value that represents a specified Year, Month, and Day.
	EncodeTime	Returns a TDateTime value for a specified Hour, Min, Sec, and MSec.
	ExceptionErrorMessage	Formats a standard error message.
	ExcludeTrailingBackslash	Returns a path name without a trailing delimiter.
	ExcludeTrailingPathDelimiter	Returns a path name without a trailing delimiter.
	ExpandFileName	Returns the full path name for a relative file name.
	ExpandFileNameCase	Returns the full path name for a relative file name on a case-sensitive file system.
	ExpandUNCFileName	Returns the full path of a file name in UNC format, if appropriate.
	ExtractFileDir	Extracts the drive and directory parts from FileName.
	ExtractFileDrive	Returns the drive portion of a file name.
	ExtractFileExt	Returns the extension portions of a file name.
	ExtractFileName	Extracts the name and extension parts of a file name.
	ExtractFilePath	Returns the drive and directory portions of a file name.
	ExtractRelativePath	Returns a relative path name, relative to a specific base directory.
	ExtractShortPathName	Converts a file name to the short 8.3 form.
	FileAge	Returns the OS timestamp of a file.
	FileAge	Returns the OS timestamp of a file.
	FileClose	Closes a specified file.
	FileCreate	Creates a new file.
	FileCreate	Creates a new file.
	FileDateToDateTime	Converts an OS timestamp value to TDateTime value.
	FileExists	Tests if a specified file exists.
	FileGetAttr	Returns the file attributes of FileName.
	FileGetDate	Returns an OS timestamp for a specified file.
	FileIsReadOnly	Reports whether a file is read-only.
	FileOpen	Opens a specified file using a specified access mode.
	FileRead	Reads a specified number of bytes from a file.
	FileSearch	Searches a specified directory path for a file.
	FileSeek	Repositions read/write point.
	FileSeek	Repositions read/write point.
	FileSetAttr	Sets the file attributes of a specified file.
	FileSetDate	Sets the OS time stamp for a specified file.
	FileSetDate	Sets the OS time stamp for a specified file.
	FileSetReadOnly	Sets the file permissions to read-only.
	FileWrite	Writes the contents of a buffer to the current position in a file.
	FinalizePackage	Finalizes the specified package (.bpl file).
	FindClose	Releases memory allocated by FindFirst.
	FindCmdLineSwitch	Determines whether a string was passed as a command line argument to the application.
	FindCmdLineSwitch	Determines whether a string was passed as a command line argument to the application.
	FindCmdLineSwitch	Determines whether a string was passed as a command line argument to the application.
	FindFirst	Searches for the first instance of a file name with a given set of attributes in a specified directory.
	FindNext	Returns the next entry matching the name and attributes specified in a previous call to FindFirst.
	FloatToCurr	Converts a floating-point value to a Currency value.
	FloatToDateTime	Converts a floating-point value to a TDateTime value.
	FloatToDecimal	Converts a floating-point value to a decimal representation.
	FloatToStr	Converts a floating point value to a string.
	FloatToStr	Converts a floating point value to a string.
	FloatToStrF	Converts a floating point value to a string, using a specified Format, Precision, and Digits.
	FloatToStrF	Converts a floating point value to a string, using a specified Format, Precision, and Digits.
	FloatToText	Converts a floating-point value to an unterminated character string, using a specified Format, Precision and Digits.
	FloatToText	Converts a floating-point value to an unterminated character string, using a specified Format, Precision and Digits.
	FloatToTextFmt	Converts a floating-point value to an unterminated character string, using a specified format.
	FloatToTextFmt	Converts a floating-point value to an unterminated character string, using a specified format.
	FmtLoadStr	Returns formatted output using a resourced format string.
	FmtStr	Assembles a formatted string using a format string and an array of arguments.
	FmtStr	Assembles a formatted string using a format string and an array of arguments.
	ForceDirectories	Creates a new directory, including the creation of parent directories as needed.
	Format	Returns a formatted string assembled from a format string and an array of arguments.
	Format	Returns a formatted string assembled from a format string and an array of arguments.
	FormatBuf	Formats the arguments from an array, placing the result in a buffer.
	FormatBuf	Formats the arguments from an array, placing the result in a buffer.
	FormatCurr	Formats a Currency object.
	FormatCurr	Formats a Currency object.
	FormatDateTime	Formats a TDateTime value.
	FormatDateTime	Formats a TDateTime value.
	FormatFloat	Formats a floating point value.
	FormatFloat	Formats a floating point value.
	FreeAndNil	Frees an object reference and replaces the reference with nil (Delphi) or NULL (C++).
	GDAL	Get Delphi Access Licence.
	GetCurrentDir	Returns the name of the current directory.
	GetEnvironmentVariable	Retrieves an environment variable value.
	GetFileVersion	Returns file version.
	GetFormatSettings	Resets the date and number format parameters to initial values.
	GetLocaleChar	Retrieves the first character of a localisation value.
	GetLocaleFormatSettings	Populates a TFormatSettings data structure.
	GetLocaleStr	Retrieves a localisation value.
	GetModuleName	Returns the fully qualified name for a module, given its handle.
	GetPackageDescription	Returns the description resource from a package.
	GetPackageInfo	Enumerates all the units and required packages for a package.
	GetTime	Returns the current time.
	GUIDToString	Converts a class identifier GUID to a string.
	IncAMonth	Increments date data by one month.
	IncludeTrailingBackslash	Ensures path name ends with delimiter
	IncludeTrailingPathDelimiter	Ensures path name ends with delimiter.
	IncMonth	Returns a date shifted by a specified number of months.
	InitializePackage	Validates and initializes a given package.
	InitializePackage	Validates and initializes a given package.
	IntToHex	Returns the hex representation of an integer.
	IntToHex	Returns the hex representation of an integer.
	IntToStr	Converts an integer to a string.
	IntToStr	Converts an integer to a string.
	IsAssembly	Determines whether a dll is an Assembly.
	IsDelimiter	Indicates whether a specified character in a string matches one of a set of delimiters.
	IsEqualGUID	Indicates whether two TGUID values are the same.
	IsLeapYear	Indicates whether a specified year is a leap year.
	IsPathDelimiter	Indicates whether the byte at a specified position in a string is the path delimiter.
	IsValidIdent	Determines whether a string conforms to Delphi identifier rules.
	Languages	Lists the locales for which support is available.
	LastDelimiter	Returns the byte index of the last character that matches any character in a specified set of delimiters.
	LoadPackage	Loads a specified package.
	LoadPackage	Loads a specified package.
	LoadStr	Loads a string resource from the application's executable file.
	LowerCase	Converts an ASCII string to lowercase.
	LowerCase	Converts an ASCII string to lowercase.
	MSecsToTimeStamp	Converts a specified number of milliseconds into a TTimeStamp value.
	NewStr	Allocates a string on the heap.
	NextCharIndex	Returns the byte index of the next character.
	Now	Returns the current date and time.
	OutOfMemoryError	Raises an EOutOfMemory exception.
	QuotedStr	Returns the quoted version of a string.
	RaiseLastOSError	Raises an exception for the last occurring OS or system library error.
	RaiseLastOSError	Raises an exception for the last occurring OS or system library error.
	RaiseLastWin32Error	Raises an exception for the last occurring Win32 error.
	RCS	Check for Delphi Client/Server Licence.
	RemoveDir	Deletes an existing empty directory.
	RenameFile	Changes a file name.
	ReplaceDate	Replaces the date portion of a TDateTime value with a specified date.
	ReplaceTime	Replaces the time portion of a TDateTime value with a specified time.
	RPR	Check for Delphi Professional Licence.
	SafeLoadLibrary	Safe and simple library loading.
	SameFileName	Compares file names based on the current locale.
	SameStr	Compares two strings by ordinal value with case sensitivity.
	SameStr	Compares two strings by ordinal value with case sensitivity.
	SameText	Compares two strings by ordinal value without case sensitivity.
	SameText	Compares two strings by ordinal value without case sensitivity.
	SetCurrentDir	Sets the current directory.
	ShowException	Displays an exception message with its physical address
	Sleep	Delay program execution for a specified number of milliseconds.
	StrAlloc	Allocates a buffer for a null-terminated string and returns a pointer to its first character.
	StrBufSize	Returns the maximum number of characters that can be stored in a buffer allocated by StrAlloc.
	StrByteType	Indicates whether a byte in a string is a single byte character, the first byte of a double byte character, or the second byte of a double byte character.
	StrCat	Appends a copy of Source to the end of Dest and returns the concatenated string.
	StrCharLength	Returns the length, in bytes, of a character.
	StrComp	Compares two strings with case sensitivity.
	StrCopy	Copies a null-terminated string.
	StrDispose	Disposes of a string.
	StrECopy	Copies null-terminated string.
	StrEnd	Returns a pointer to the end of a null terminated string.
	StrFmt	Formats entries in an array.
	StrFmt	Formats entries in an array.
	StrIComp	Compares two strings without case sensitivity.
	StringReplace	Returns a string with occurrences of one substring replaced by another substring.
	StringToGUID	Converts a string to a GUID.
	StrLCat	Appends up to a specified maximum number of characters to string.
	StrLComp	Compares up to a specified maximum number of characters in two strings.
	StrLCopy	Copies up to a specified maximum number of characters from Source to Dest.
	StrLen	Returns number of characters in a string excluding the null terminator.
	StrLFmt	Formats a series of arguments from a specified open array into a buffer.
	StrLFmt	Formats a series of arguments from a specified open array into a buffer.
	StrLIComp	Compares strings up to a specified maximum number of characters, without case sensitivity.
	StrLower	Converts a string to lowercase.
	StrMove	Copies specified number of characters to string.
	StrNew	Allocates space on and copies a string to the heap; returning a pointer to the string.
	StrNextChar	Returns pointer to following character.
	StrPas	Converts null-terminated string to an AnsiString (long string).
	StrPCopy	Copies an AnsiString (long string) to a null-terminated string.
	StrPLCopy	Copies characters from an AnsiString (long string) into a null-terminated string.
	StrPos	Returns a pointer to the first occurrence of STR2 in STR1.
	StrRScan	Returns a pointer to the last occurrence of a specified character in a string.
	StrScan	Returns a pointer to first occurrence of a specified character in a string.
	StrToBool	Converts a string to a Boolean value.
	StrToBoolDef	Converts a string to a Boolean value, with error default.
	StrToCurr	Converts a string to a Currency value.
	StrToCurr	Converts a string to a Currency value.
	StrToCurrDef	Converts a string to a Currency value, with error default.
	StrToCurrDef	Converts a string to a Currency value, with error default.
	StrToDate	Converts a string to a TDateTime value.
	StrToDate	Converts a string to a TDateTime value.
	StrToDateDef	Converts a string to a TDateTime value, with error default.
	StrToDateDef	Converts a string to a TDateTime value, with error default.
	StrToDateTime	Converts a string to a TDateTime value.
	StrToDateTime	Converts a string to a TDateTime value.
	StrToDateTimeDef	Converts a string to a TDateTime value with error default.
	StrToDateTimeDef	Converts a string to a TDateTime value with error default.
	StrToFloat	Converts a given string to a floating-point value.
	StrToFloat	Converts a given string to a floating-point value.
	StrToFloatDef	Converts a given string to a floating-point value with error default.
	StrToFloatDef	Converts a given string to a floating-point value with error default.
	StrToInt	Converts a string that represents an integer (decimal or hex notation) to a number.
	StrToInt64	Converts a string that represents an integer (decimal or hex notation) to a number.
	StrToInt64Def	Converts a string that represents an integer (decimal or hex notation) to a number.
	StrToIntDef	Converts a string that represents an integer (decimal or hex notation) to a number with error default.
	StrToTime	Converts a string to a TDateTime value.
	StrToTime	Converts a string to a TDateTime value.
	StrToTimeDef	Converts a string to a TDateTime value with error default.
	StrToTimeDef	Converts a string to a TDateTime value with error default.
	StrUpper	Returns a string in upper case.
	Supports	Indicates whether a given object or interface supports a specified interface.
	Supports	Indicates whether a given object or interface supports a specified interface.
	Supports	Indicates whether a given object or interface supports a specified interface.
	Supports	Indicates whether a given object or interface supports a specified interface.
	Supports	Indicates whether a given object or interface supports a specified interface.
	SysErrorMessage	Converts OS error codes into strings.
	SystemTimeToDateTime	Converts a system time value into a TDateTime value.
	TextToFloat	Converts a null-terminated string to a floating-point value.
	TextToFloat	Converts a null-terminated string to a floating-point value.
	Time	Returns the current time.
	TimeStampToDateTime	Converts a TTimeStamp value into the corresponding TDateTime value.
	TimeStampToMSecs	Converts a TTimeStamp value into an absolute number of milliseconds.
	TimeToStr	Returns a string that represents a TDateTime value.
	TimeToStr	Returns a string that represents a TDateTime value.
	Trim	Trims leading and trailing spaces and control characters from a string.
	Trim	Trims leading and trailing spaces and control characters from a string.
	TrimLeft	Trims leading spaces and control characters from a string.
	TrimLeft	Trims leading spaces and control characters from a string.
	TrimRight	Trims trailing spaces and control characters from a string.
	TrimRight	Trims trailing spaces and control characters from a string.
	TryEncodeDate	Creates a TDateTime value that represents a specified Year, Month, and Day.
	TryEncodeTime	Creates a TDateTime value for a specified Hour, Min, Sec, and MSec.
	TryFloatToCurr	Converts a floating-point value to a Currency value.
	TryFloatToDateTime	Converts a floating-point value to a TDateTime value.
	TryStrToBool	Converts a string to a Boolean value, with a Boolean success code.
	TryStrToCurr	Converts a string to a Currency value, with a Boolean success code.
	TryStrToCurr	Converts a string to a Currency value, with a Boolean success code.
	TryStrToDate	Converts a string to a TDateTime value, with a Boolean success code.
	TryStrToDate	Converts a string to a TDateTime value, with a Boolean success code.
	TryStrToDateTime	Converts a string to a TDateTime value with a Boolean success code.
	TryStrToDateTime	Converts a string to a TDateTime value with a Boolean success code.
	TryStrToFloat	Converts a given string to a floating-point value with a boolean success code.
	TryStrToFloat	Converts a given string to a floating-point value with a boolean success code.
	TryStrToFloat	Converts a given string to a floating-point value with a boolean success code.
	TryStrToFloat	Converts a given string to a floating-point value with a boolean success code.
	TryStrToFloat	Converts a given string to a floating-point value with a boolean success code.
	TryStrToFloat	Converts a given string to a floating-point value with a boolean success code.
	TryStrToInt	Converts a string that represents an integer (decimal or hex notation) to a number with Boolean success code.
	TryStrToInt64	Converts a string that represents an integer (decimal or hex notation) to a number.
	TryStrToTime	Converts a string to a TDateTime value with an error default.
	TryStrToTime	Converts a string to a TDateTime value with an error default.
	UnloadPackage	Unloads a package.
	UpperCase	Returns a copy of a string in uppercase.
	UpperCase	Returns a copy of a string in uppercase.
	WideCompareStr	Compares Unicode strings based on the current locale with case sensitivity.
	WideCompareText	Compares Unicode strings based on the current locale without case sensitivity.
	WideFmtStr	Assembles a formatted Unicode string using a format string and an array of arguments.
	WideFmtStr	Assembles a formatted Unicode string using a format string and an array of arguments.
	WideFormat	Returns a formatted Unicode string assembled from a format string and an array of arguments.
	WideFormat	Returns a formatted Unicode string assembled from a format string and an array of arguments.
	WideFormatBuf	Formats the arguments from an array, placing the result in a buffer.
	WideFormatBuf	Formats the arguments from an array, placing the result in a buffer.
	WideLowerCase	Returns Unicode string converted to lower case.
	WideSameStr	Compares Unicode strings based on the current locale with case sensitivity.
	WideSameText	Compares Unicode strings based on the current locale without case sensitivity.
	WideUpperCase	Returns Unicode string converted to upper case.
	Win32Check	Checks the return value of a Windows API call and raises an appropriate exception when it indicates failure.
	WrapText	Splits a string into multiple lines as its length approaches a specified size.
	WrapText	Splits a string into multiple lines as its length approaches a specified size.

Interfaces

	Name	Description
	IReadWriteSync	This is class SysUtils.IReadWriteSync.

Structs, Records, Enums

	Name	Description
	Int64Rec	Int64Rec declares a utility record to provide access to the bytes of an Int64 value.
	LongRec	LongRec declares a utility record to provide access to the bytes of a LongWord value.
	TExceptionRecord	TExceptionRecord holds information about an exception in an application.
	TFilenameCaseMatch	TFilenameCaseMatch indicates how close a match was found to a specified file name.
	TFloatFormat	TFloatFormat is an enumerated list of formatting codes for float functions.
	TFloatRec	TFloatRec declares a utility record that provides access to the attributes of a floating point number.
	TFloatValue	This is record SysUtils.TFloatValue.
	TFormatSettings	TFormatSettings defines a thread-safe string formatting context.
	TLangRec	TLangRec declares a record used to describe a Windows locale.
	TLocaleOptions	TLocaleOptions defines a choice of dependent and independent locale options.
	TMbcsByteType	TMbcsByteType represents the use of a single byte in a string that uses a multi-byte character set (MBCS).
	TNameType	This is record SysUtils.TNameType.
	TSearchRec	TSearchRec defines file information searched for by FindFirst or FindNext.
	TSysLocale	TSysLocale represents locale information.
	TThreadInfo	This is record SysUtils.TThreadInfo.
	TTimeStamp	TTimeStamp represents time and date values.
	WordRec	WordRec declares a utility record to store high and low order bytes of a variable.

Types

Name	Description
ExceptClass	ExceptClass declares an Exception class.
PByteArray	PByteArray declares a pointer to an array of Bytes.
PDayTable	PDayTable is a pointer to a TDayTable type.
PExceptionRecord	PExceptionRecord is a pointer to a TExceptionRecord type.
PThreadInfo	This is type SysUtils.PThreadInfo.
PWordArray	PWordArray is a pointer to a TWordArray type.
TByteArray	TByteArray declares an array of Bytes.
TBytes	TBytes declares an array of Bytes.
TDayTable	TDayTable is used to hold the number of days of each month of a year.
TFileName	TFileName is a string that represents a file name.
TIntegerSet	TIntegerSet is used to treat an integer as a set of bits.
TMREWSync	TMREWSync is a short name equivalent to TMultiReadExclusiveWriteSynchronizer.
TPackageInfoProc	TPackageInfoProc is a call-back procedure invoked by GetPackageInfo.
TProcedure	TProcedure declares a procedure.
TReplaceFlags	TReplaceFlags indicates how to perform a search-and-replace operation
TSysCharSet	TSysCharSet is a set containing special characters that can be used to parse a string. The elements of the set vary, depending on the type of parsing performed.
TTerminateProc	TValidatePackageProc is a call-back function invoked by LoadPackage.
TValidatePackageProc	This is type SysUtils.TValidatePackageProc.
TWordArray	TWordArray declares an array of Words.

Variables

Name	Description
CurrencyDecimals	CurrencyDecimals is the number of digits to the right of the decimal point in a currency amount.
CurrencyFormat	CurrencyFormat defines the currency symbol placement and separation used in floating-point–to–decimal conversions. Possible values are: 0 = $1 \| 1 = 1$ \| 2 = $ 1 \| 3 = 1 $
CurrencyString	CurrencyString defines the currency symbol (or characters) used in floating-point to decimal conversions.
DateSeparator	DateSeparator is the character used to separate the year, month, and day parts of a date value.
DecimalSeparator	DecimalSeparator is the character used to separate the integer part from the fractional part of a number. This variable must have a value other than #0.
EmptyStr	An empty string constant.
EmptyWideStr	An empty string version of the WideString constant.
EraNames	Defines the names of calendar eras for East Asian locales.
EraYearOffsets	Controls the DateTimeToStr function (for East Asian locales).
FalseBoolStrs	Lists strings that can represent the boolean value false.
GetDiskFreeSpaceEx	This is variable SysUtils.GetDiskFreeSpaceEx.
HexDisplayPrefix	HexDisplayPrefix contains the prefix to display on hexadecimal values - $ for Pascal (Delphi) syntax, 0x for C++ syntax.
LeadBytes	Lists all values that can be the first byte of a double byte character on the local system.
ListSeparator	The character used to separate items in a list.
LongDateFormat	LongDateFormat is the format string used to convert a date value to a long string suitable for display but not for editing.
LongDayNames	LongDayNames is the array of strings containing long day names. The dddd format specifier in a format string passed to FormatDateTime causes a long day name to be substituted.
LongMonthNames	LongMonthNames is the array of strings containing long month names. The mmmm format specifier in a format string passed to FormatDateTime causes a long month name to be substituted.
LongTimeFormat	LongTimeFormat is the format string used to convert a time value to a string with hours, minutes, and seconds.
NegCurrFormat	NegCurrFormat defines the currency format used in floating-point to decimal conversions of negative numbers.
NullStr	A pointer to an empty string.
NullWideStr	A pointer to an empty wide string.
ShortDateFormat	ShortDateFormat is the format string used to convert a date value to a short string suitable for editing.
ShortDayNames	ShortDayNames is the array of strings containing short day names. The ddd format specifier in a format string passed to FormatDateTime causes a short day name to be substituted.
ShortMonthNames	ShortMonthNames is the array of strings containing short month names. The mmm format specifier in a format string passed to FormatDateTime causes a short month name to be substituted.
ShortTimeFormat	ShortTimeFormat is the format string used to convert a time value to a short string with only hours and minutes.
SysLocale	SysLocale holds locale information.
ThousandSeparator	ThousandSeparator is the character used to separate thousands in numbers with more than three digits to the left of the decimal separator.
TimeAMString	TimeAMString is the suffix string used for time values between 00:00 and 11:59 in 12-hour clock format.
TimePMString	TimePMString is the suffix string used for time values between 12:00 and 23:59 in 12-hour clock format.
TimeSeparator	TimeSeparator is the character used to separate the hour, minute, and second parts of a time value.
TrueBoolStrs	Lists strings that can represent the boolean value false.
TwoDigitYearCenturyWindow	Determines what century is added to two-digit years when string dates are converted to numeric dates.
Win32BuildNumber	Specifies which the build level of the Windows Operating System operating.
Win32CSDVersion	Specifies the Win32 latest installed service pack.
Win32MajorVersion	Specifies which major Windows Operating System version is operating.
Win32MinorVersion	Specifies which minor Windows Operating System version is operating.
Win32Platform	Specifies the Windows Operating System platform identifier.

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