RTL index

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 _

Name	Kind	Unit	What it is
`Halt`	procedure	`System`	Stop program execution.
`HaltOnError`	constant	`heaptrc`	Halt program on memory fault.
`HaltOnNotReleased`	constant	`heaptrc`	Halt on exit if any memory was not freed.
`haltproc`	variable	`System`	Procedure to call to exit program.
`Handle`	property	`Classes`	The OS handle of the stream.
`Handle`	property	`Classes`	Returns the thread handle.
`Handle`	variable	`Objects`	OS file handle for stream.
`Handle`	variable	`System`	OS file handle.
`Handle`	variable	`System`	Low-level OS file handle.
`HandleConversionException`	procedure	`Variants`	Convert an exception to a variant exception.
`HandleCreateException`	function	`Classes`
`handler`	variable	`gpm`	Handler to call in case of event.
`HandlesTarget`	function	`Classes`	Determines whether Target can be handled by this action.
`HangulSyllable`	property	`unicodedata`	Is the character a hangul syllable.
`HardwareInterrupts`	topic	`go32`	Hardware interrupts.
`Hardwarepages`	variable	`Graph`	Total number of image pages - 1.
`Has_arg`	variable	`getopts`	Does the option have arguments (values).
`has_avx_support`	constant	`System`
`has_avx2_support`	constant	`System`
`has_mmx_support`	constant	`System`	CPU has mmx support.
`has_sse_support`	constant	`System`	CPU has SSE support ?
`has_sse2_support`	constant	`System`	CPU has sse2 support?
`has_sse3_support`	constant	`System`	CPU has sse3 support?
`HasCodePoint`	function	`unicodedata`	Check flags whether a codepoint is present.
`HasDST`	function	`DateUtils`
`HashName`	function	`sysutils`	Calculate a hash from a null-terminated string.
`HasIntersection`	function	`Classes`
`HasParent`	function	`Classes`	Does the component have a parent ?
`HatchFill`	constant	`Graph`	Fill style: Hatch lines.
`head_size`	property	`heaptrc`
`headSize`	property	`heaptrc`
`HeapErrorCode`	variable	`System`	Last error code.
`Height`	property	`Types`
`Height`	property	`Types`
`Height`	property	`Types`
`Height`	property	`Types`
`HelpContext`	property	`sysutils`	Help context associated with the exception.
`HelperParent`	property	`TypInfo`	Type information for parent helper class.
`HercMono`	constant	`Graph`	Mode: Hercules, mono color.
`HercMonoHi`	constant	`Graph`	Mode: Hercules card, monochrome, high resolution.
`Hex2Dec`	function	`StrUtils`	Converts a hexadecimal string to a decimal value.
`Hex2Dec64`	function	`StrUtils`	Convert hexadecimal value to 64-bit integer.
`HexByteSeparator`	variable	`syshelpers`	Global separator string between bytes in hexadecimal string representation.
`HexByteSeparator`	variable	`syshelpers`	Separator string between bytes in hexadecimal string representation.
`HexDisplayPrefix`	constant	`sysutils`	String to prepend to hexadecimal values.
`HexDump`	procedure	`heaptrc`
`HexDwordSeparator`	variable	`syshelpers`	Global separator string between double words in hexadecimal string representation.
`HexDwordSeparator`	variable	`syshelpers`	Separator string between double words in hexadecimal string representation.
`HexNibbleSeparator`	variable	`syshelpers`	Global separator string between nibbles (half bytes) in hexadecimal string representation.
`HexNibbleSeparator`	variable	`syshelpers`	Separator string between nibbles (half bytes) in hexadecimal string representation.
`HexPrefixString`	variable	`syshelpers`	Global prefix string at the beginning of hexadecimal string representation.
`HexPrefixString`	variable	`syshelpers`	Prefix string at the beginning of hexadecimal string representation.
`HexStr`	function	`System`	Convert integer value to string with hexadecimal representation.
`HexSufixString`	variable	`syshelpers`	Global sufix string at the end of hexadecimal string representation.
`HexSufixString`	variable	`syshelpers`	Sufix string at the end of hexadecimal string representation.
`HexToBin`	function	`Classes`	Convert a hexadecimal string to a binary buffer.
`HexToBin`	function	`StrUtils`	Convert a hexadecimal string to a binary buffer.
`HexToBinary`	procedure	`Classes`	Writes hexadecimal data to a stream.
`HexWordSeparator`	variable	`syshelpers`	Global separator string between words in hexadecimal string representation.
`HexWordSeparator`	variable	`syshelpers`	Separator string between words in hexadecimal string representation.
`HGLOBAL`	type	`System`	Windows compatibility type for use in resources.
`Hi`	variable	`Objects`	High word of longint.
`Hi`	variable	`Objects`	High byte of a word.
`Hi`	function	`System`	Return high byte/word/nibble of value.
`Hi`	variable	`sysutils`	High byte of the word.
`hidden`	constant	`Dos`	Hidden file attribute.
`HideMouse`	procedure	`Mouse`	Hide the mouse cursor.
`HideMouse`	variable	`Mouse`	Function called when the mouse cursor must be hidden.
`High`	function	`System`	Return highest index of open array or enumerated.
`HIGH_SURROGATE_BEGIN`	constant	`unicodedata`	First value for high surrogate values.
`HIGH_SURROGATE_COUNT`	constant	`unicodedata`	Number of high surrogate values.
`HIGH_SURROGATE_END`	constant	`unicodedata`	Last value for high surrogate values.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`HighestSetBitPos`	function	`sysutils`	Return the position of the leftmost bit set.
`highNewDriver`	constant	`Graph`	Mode: highest number for new driver.
`highNewMode`	constant	`Graph`	Mode: Highest possible value of the new modes.
`HighVideo`	procedure	`Crt`	Switch to highlighted text mode.
`HINSTANCE`	function	`System`	Windows compatibility type for use in resources.
`HINSTANCEFunc`	variable	`System`	Return the programs instance handle.
`HLine`	variable	`Graph`	Hook to draw a solid horizontal line.
`HLine`	variable	`Graph`	Mode Horizontal full line drawing routine.
`hlineproc`	procedure type	`Graph`	Standard procedure prototype to draw a single horizontal line.
`HMODULE`	type	`Classes`	Special type for handling modules.
`HModule`	type	`dynlibs`	Alias for TLibHandle type.
`HMODULE`	type	`System`	Windows compatibility type for use in resources.
`HoneyDew`	constant	`System.UITypes`
`HoneyDew`	constant	`System.UITypes`
`HookSignal`	procedure	`sysutils`	Hook a specified signal.
`horiz`	variable	`Graph`	Horizontal justification.
`HorizDir`	constant	`Graph`	Text write direction: Horizontal.
`HostAddrToStr`	function	`Sockets`	Convert a host address to a string.
`HostAddrToStr6`	function	`Sockets`	Convert a IPV6 host address to a string representation.
`HostToNet`	function	`Sockets`	Convert a host address to a network address.
`HotPink`	constant	`System.UITypes`
`HotPink`	constant	`System.UITypes`
`Hour`	property	`DateUtils`
`Hour`	variable	`Dos`	Hour of the day.
`HourOf`	function	`DateUtils`	Extract the hour part from a TDateTime value.
`HourOfTheDay`	function	`DateUtils`	Calculate the hour of a given TDateTime value.
`HourOfTheMonth`	function	`DateUtils`	Calculate the number of hours passed since the start of the month.
`HourOfTheWeek`	function	`DateUtils`	Calculate the number of hours elapsed since the start of the week.
`HourOfTheYear`	function	`DateUtils`	Calculate the number of hours passed since the start of the year.
`HoursBetween`	function	`DateUtils`	Calculate the number of whole hours between two TDateTime values.
`HoursBetween`	function	`DateUtils`
`HourSpan`	function	`DateUtils`	Calculate the approximate number of hours between two TDateTime values.
`HoursPerDay`	constant	`sysutils`	Number of hours in a day.
`HRESULT`	type	`System`	32-Bit signed integer.
`HRSRC`	type	`Classes`	Type to manage resources.
`htonl`	function	`Sockets`	Convert long integer from host ordered to network ordered.
`htons`	function	`Sockets`	Convert short integer from host ordered to network ordered.
`HyperbolicRoutines`	topic	`Math`	Hyperbolic functions.
`Hypot`	function	`Math`	Return hypotenuse of triangle.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.