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
`IClassFactory`	interface	`Types`	Class defined for ActiveX compatibility.
`IControlValueObserver`	interface	`Classes`
`ID`	property	`Classes`	Initial index of this item.
`ID`	property	`DateUtils`
`IdentToInt`	function	`Classes`	Looks up an integer value in a integer-to-identifier map list.
`IDesignerNotify`	interface	`Classes`	Designer notification interface.
`IDispatch`	interface	`System`	Dispatch interface.
`IdleTime`	variable	`Classes`	Processor idle time.
`idx`	variable	`System`
`IEditFormatLink`	interface	`Classes`
`IEditGridLinkObserver`	interface	`Classes`
`IEditLinkObserver`	interface	`Classes`
`IEnumerable`	interface	`System`	Interface to retrieve an enumerator from a class.
`IEnumerator`	interface	`System`	Enumerator support interface.
`IFPObserved`	interface	`Classes`	Interface implemented by an object that can be observed.
`IFPObserver`	interface	`Classes`	Interface for an object to observe other objects.
`IfThen`	function	`Classes`
`IfThen`	function	`Math`	Return one of two values, depending on a boolean condition.
`IfThen`	function	`StrUtils`	Returns one of two strings, depending on a boolean expression.
`IfThen`	function	`sysutils`	Return one of two values depending on boolean condition.
`igiBegin`	constant	`System.UITypes`
`igiDoubleTap`	constant	`System.UITypes`
`igiEnd`	constant	`System.UITypes`
`igiFirst`	constant	`System.UITypes`
`igiLast`	constant	`System.UITypes`
`igiLongTap`	constant	`System.UITypes`
`igiPan`	constant	`System.UITypes`
`igiPressAndTap`	constant	`System.UITypes`
`igiRotate`	constant	`System.UITypes`
`igiTwoFingerTap`	constant	`System.UITypes`
`igiZoom`	constant	`System.UITypes`
`IgnoreChildren`	property	`Classes`	Determines whether children will be streamed as well.
`iicrGetComponent`	function	`Classes`
`IID`	property	`System`	Unique GUID for this interface.
`IIDRef`	variable	`System`	Pointer to IID of interface.
`IIDStr`	property	`System`	Pointer to GUID string. Always assigned for COM.
`IIDStr`	property	`TypInfo`	GUID as string.
`IIDStr`	property	`TypInfo`	IID string representation of interface.
`IInterface`	type	`System`	Basic interface for all COM based interfaces.
`IInterfaceComponentReference`	interface	`Classes`	Interface for checking component references.
`IInterfaceList`	interface	`Classes`	Interface for maintaining a list of interfaces.
`IInterfaceListEx`	interface	`Classes`
`IInvokable`	interface	`System`	Interface with RTTI associated with it.
`IIteratorLinkObserver`	interface	`Classes`
`ILL_BADSTK`	constant	`BaseUnix`
`ILL_COPROC`	constant	`BaseUnix`
`ILL_ILLADR`	constant	`BaseUnix`
`ILL_ILLOPC`	constant	`BaseUnix`
`ILL_ILLOPN`	constant	`BaseUnix`
`ILL_ILLTRP`	constant	`BaseUnix`
`ILL_PRVOPC`	constant	`BaseUnix`
`ILL_PRVREG`	constant	`BaseUnix`
`ImageSize`	variable	`Graph`	Return size to store image.
`ImageSize`	variable	`Graph`	Mode ImageSize routine.
`imagesizeproc`	procedure type	`Graph`	Standard calculation procedure prototype.
`ImgOffset`	variable	`exeinfo`	Image offset.
`implicit(Cardinal):TUInt24Rec`	operator	`unicodedata`	Assign TUInt24Recfrom Cardinal.
`implicit(TUInt24Rec):Byte`	operator	`unicodedata`	Assign TUInt24Rec to byte.
`implicit(TUInt24Rec):Cardinal`	operator	`unicodedata`	Assign TUInt24Rec to cardinal.
`implicit(TUInt24Rec):LongInt`	operator	`unicodedata`	Assign TUInt24Rec to longint.
`implicit(TUInt24Rec):Word`	operator	`unicodedata`	Assign TUInt24Rec to word.
`IMultiCastObserver`	interface	`Classes`
`IN_ACCESS`	constant	`Linux`	Data was read from file.
`in_addr`	record	`Sockets`	General inet socket address.
`IN_ALL_EVENTS`	constant	`Linux`	All possible events OR-ed together.
`IN_ATTRIB`	constant	`Linux`	File attributes changed.
`IN_CLOEXEC`	constant	`Linux`	Inotify close on exec flag.
`IN_CLOSE`	constant	`Linux`	File was closed (read or write).
`IN_CLOSE_NOWRITE`	constant	`Linux`	File opened for read was closed.
`IN_CLOSE_WRITE`	constant	`Linux`	File opened for write was closed.
`IN_CREATE`	constant	`Linux`	A file was created in the directory.
`IN_DELETE`	constant	`Linux`	A file was deleted from the directory.
`IN_DELETE_SELF`	constant	`Linux`	Directory or file under observation was deleted.
`IN_DONT_FOLLOW`	constant	`Linux`	Do not follow symlinks.
`IN_IGNORED`	constant	`Linux`	Watch was ignored (removed). Only reported.
`IN_ISDIR`	constant	`Linux`	Event subject is a directory (reported only).
`IN_MASK_ADD`	constant	`Linux`	Add events to existing watch (OR-ing the sets) if one exists.
`IN_MODIFY`	constant	`Linux`	Data was written to file.
`IN_MOVE`	constant	`Linux`	File was moved (in or out of directory).
`IN_MOVE_SELF`	constant	`Linux`	Directory or file under observation was moved.
`IN_MOVED_FROM`	constant	`Linux`	File was moved away from watched directory.
`IN_MOVED_TO`	constant	`Linux`	File was moved into watched directory.
`IN_NONBLOCK`	constant	`Linux`	Do not block on read.
`IN_ONESHOT`	constant	`Linux`	Only report one event, then remove the watch.
`IN_ONLYDIR`	constant	`Linux`	Only watch filename if it is a directory.
`IN_OPEN`	constant	`Linux`	File was opened.
`IN_Q_OVERFLOW`	constant	`Linux`	Queue overflowed. Only reported.
`IN_UNMOUNT`	constant	`Linux`	File system on which file resides was unmounted. Only reported.
`in(Ansistring,):Boolean`	operator	`StrUtils`
`in(UnicodeString,):Boolean`	operator	`StrUtils`	Check presence of string in an array of strings.
`in6_addr`	record	`Sockets`	General purpose IPV6 address.
`INADDR_ANY`	constant	`Sockets`	A bitmask matching any IP address on the local machine.
`INADDR_NONE`	constant	`Sockets`	A bitmask matching no valid IP address.
`Inc`	procedure	`System`	Increase value of integer variable.
`IncAMonth`	procedure	`sysutils`	Increase a date with a certain amount of months.
`IncDay`	function	`DateUtils`	Increase a TDateTime value with a number of days.
`IncHour`	function	`DateUtils`	Increase a TDateTime value with a number of hours.
`Include`	procedure	`System`	Include element in set if it was not yet present.
`IncludeInternalAllocationsInStatistics`	constant	`heaptrc`
`IncludeLeadingPathDelimiter`	function	`sysutils`	Prepend a path delimiter if there is not already one.
`IncludeTrailingBackslash`	function	`sysutils`	Add trailing directory separator to a pathname, if needed.
`IncludeTrailingPathDelimiter`	function	`sysutils`	Add trailing directory separator to a pathname, if needed.
`IncMilliSecond`	function	`DateUtils`	Increase a TDateTime value with a number of milliseconds.
`IncMinute`	function	`DateUtils`	Increase a TDateTime value with a number of minutes.
`IncMonth`	function	`sysutils`	Increases the month in a TDateTime value with a given amount.
`IncrementalCompareString`	function	`unicodedata`	Compare 2 strings using the specified collation.
`IncSecond`	function	`DateUtils`	Increase a TDateTime value with a number of seconds.
`IncWeek`	function	`DateUtils`	Increase a TDateTime value with a number of weeks.
`IncYear`	function	`DateUtils`	Increase a TDateTime value with a number of years.
`Index`	property	`Classes`	Index of the item in its managing collection property.
`Index`	variable	`TypInfo`	Contains the "Index specifier" value for array properties.
`IndexByte`	function	`System`	Search for a byte in a memory range.
`IndexChar`	function	`System`	Search for a character in a memory range.
`IndexChar0`	function	`System`	Return index of a character in null-terminated array of char.
`IndexDWord`	function	`System`	Search for a DWord value in a memory range.
`IndexOf`	function	`Classes`	Return the index of an interface.
`IndexOf`	function	`Classes`	Returns the index of a given pointer.
`IndexOf`	function	`Classes`	Returns the index of an interface.
`IndexOf`	function	`Classes`	Returns the index of a given pointer.
`IndexOf`	function	`Classes`	Overrides the property.
`IndexOf`	function	`Classes`	Find a string in the list and return its position.
`IndexOf`	function	`fgl`	Index of object.
`IndexOf`	function	`fgl`	Index of item.
`IndexOf`	function	`fgl`	Find index of a key in the list.
`IndexOf`	function	`fgl`	Find index of a key in the list.
`IndexOf`	function	`fgl`	Find index of a key in the list.
`IndexOf`	function	`fgl`	Index of item.
`IndexOf`	function	`fgl`	Search an item in the list.
`IndexOf`	function	`fgl`	Index of key pointed to by AKey.
`IndexOf`	function	`Objects`	Find the position of a certain item.
`IndexOf`	function	`Objects`	Return index of an item in the collection.
`IndexOf`	function	`sysutils`
`IndexOf`	function	`sysutils`
`IndexOf`	function	`sysutils`
`IndexOf`	function	`sysutils`
`IndexOf`	function	`unicodedata`
`IndexOfAny`	function	`sysutils`
`IndexOfAny`	function	`sysutils`
`IndexOfAny`	function	`sysutils`
`IndexOfAny`	function	`sysutils`
`IndexOfAnyUnquoted`	function	`sysutils`
`IndexOfAnyUnquoted`	function	`sysutils`
`IndexOfAnyUnquoted`	function	`sysutils`
`IndexOfAnyUnquoted`	function	`sysutils`
`IndexOfData`	function	`fgl`	Find index of data value in the list.
`IndexOfData`	function	`fgl`	Find index of data value in the list.
`IndexOfData`	function	`fgl`	Find index of data value in the list.
`IndexOfData`	function	`fgl`	Index of data item AData.
`IndexOfItem`	function	`Classes`	Search an item in the list.
`IndexOfName`	function	`Classes`	Finds the index of a name in the name-value pairs.
`IndexOfObject`	function	`Classes`	Finds an object in the list and returns its index.
`IndexOfUnQuoted`	function	`sysutils`
`IndexOfUnQuoted`	function	`sysutils`
`IndexOfUnQuoted`	function	`sysutils`
`IndexOfUnQuoted`	function	`sysutils`
`IndexQWord`	function	`System`	Return the position of a QWord in a memory range.
`IndexStr`	function	`StrUtils`	Searches, observing case, for a string in an array of strings.
`IndexText`	function	`StrUtils`	Index of text in a list of values.
`IndexWord`	function	`System`	Search for a WORD value in a memory range.
`IndianRed`	constant	`System.UITypes`
`IndianRed`	constant	`System.UITypes`
`Indigo`	constant	`System.UITypes`
`Indigo`	constant	`System.UITypes`
`Infinity`	constant	`Math`	Value is infinity.
`Inflate`	procedure	`Types`
`Inflate`	procedure	`Types`
`InflateRect`	function	`Types`	Increase the rectangle in size, keeping it centered.
`info`	variable	`System`
`Info`	variable	`TypInfo`
`inheritable`	variable	`Linux`	Capabilities that will be inherited across exec calls.
`InheritsFrom`	function	`System`	Check whether class is an ancestor.
`Init`	constructor	`Classes`
`Init`	constructor	`DateUtils`
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the matrix, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`init`	constructor	`matrix`	Initializes the vector, setting its elements to the values passed to the constructor.
`Init`	constructor	`Objects`	Initialize an instance of TBufStream and open the file.
`Init`	constructor	`Objects`	Instantiate a new collection.
`Init`	constructor	`Objects`	Instantiate a new instance of TDosStream.
`Init`	constructor	`Objects`	Initialize memory stream, reserves memory for stream data.
`Init`	constructor	`Objects`	Construct (initialize) a new object.
`Init`	constructor	`Objects`	Instantiate a new instance.
`Init`	constructor	`Objects`	Instantiates a new instance of a TSortedCollection.
`Init`	constructor	`Objects`	Constructor for TStream instance.
`Init`	constructor	`Objects`	Instantiate a new instance of TStrListMaker.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_identity`	constructor	`matrix`	Initializes the matrix and sets its elements to the identity matrix.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_one`	constructor	`matrix`	Initializes the vector and sets its elements to one.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the matrix and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`init_zero`	constructor	`matrix`	Initializes the vector and sets its elements to zero.
`InitComponentRes`	function	`Classes`	Provided for Delphi compatibility only.
`InitCriticalSection`	procedure	`System`	Initialize a critical section.
`InitCriticalSection`	variable	`System`	Initialize a critical section.
`InitDriver`	variable	`keyboard`	Handler called when initializing keyboard driver.
`InitDriver`	variable	`Mouse`	Called when the driver must be initialized.
`InitDriver`	variable	`video`	Initializes the driver.
`InitEnhancedDriver`	variable	`video`
`InitEnhancedVideo`	procedure	`video`
`InitFinalTable`	variable	`System`	List of units to initialize/finalize.
`InitFormatSettingsHook`	variable	`sysutils`
`InitGraph`	procedure	`Graph`	Initialize graphical system.
`Initialize`	procedure	`System`	Initialize memory block using RTTI.
`initialize(TBinFormatSettings)`	operator	`syshelpers`	Populate record with default values.
`initialize(TBitFormatSettings)`	operator	`syshelpers`	Populate record with default values.
`initialize(THexFormatSettings)`	operator	`syshelpers`	Populate record with default values.
`initialize(TScoped)`	operator	`Types`
`InitializeArray`	procedure	`System`	Initialize managed-type elements in array.
`InitInheritedComponent`	function	`Classes`	Initializes a component descending from RootAncestor.
`InitInstance`	function	`System`	Initialize a new class instance.
`InitKeyboard`	procedure	`keyboard`	Initialize the keyboard driver.
`InitManager`	variable	`System`	Initialize the thread manager.
`InitMode`	variable	`Graph`	Mode initialization routine.
`initmodeproc`	procedure type	`Graph`	Standard routine prototype to initialize a mode.
`InitMouse`	procedure	`Mouse`	Initialize the FPC mouse driver.
`InitOnPtrCompare`	procedure	`fgl`
`InitOnPtrCompare`	procedure	`fgl`
`InitOnPtrCompare`	procedure	`fgl`
`InitOnPtrCompare`	procedure	`fgl`
`InitPrinter`	procedure	`printer`	Initialize the printer.
`InitProc`	constant	`System`	Initialization routine.
`InitThread`	procedure	`System`	Initialize a thread.
`InitThread`	variable	`System`	Called when a thread is initialized.
`InitThreadVar`	variable	`System`	Initialize a thread variable.
`InitThreadVars`	procedure	`System`	Initialize threadvars.
`InitVideo`	procedure	`video`	Initialize video driver.
`ino_t`	type	`BaseUnix`	Inode type.
`ino_t`	type	`Unix`	Inode type.
`ino_t`	type	`unixtype`	Inode type.
`ino64_t`	type	`unixtype`	64-bit inode.
`inotify_add_watch`	function	`Linux`	Add a watch to a notify file descriptor.
`inotify_event`	record	`Linux`	INotify event structure.
`inotify_init`	function	`Linux`	Initialize a new inotify file descriptor.
`inotify_init1`	function	`Linux`	Initialize a new inotify file descriptor with extra options.
`inotify_rm_watch`	function	`Linux`	Remove watch from Inotify file descriptor.
`inoutfunc`	variable	`System`	File I/O function.
`InOutRes`	variable	`System`	Result of last I/O operation.
`InOutString`	function	`System`
`inportb`	function	`go32`	Read byte from I/O port.
`inportl`	function	`go32`	Read longint from I/O port.
`inportw`	function	`go32`	Read word from I/O port.
`Input`	variable	`System`	Standard input text file.
`InquireSignal`	function	`sysutils`	Check whether a signal handler is set (unix only).
`InRange`	function	`DateUtils`
`InRange`	function	`Math`	Check whether value is in range.
`Insert`	procedure	`Classes`	Insert an interface in the list.
`Insert`	function	`Classes`	Insert an item in the collection.
`Insert`	procedure	`Classes`	Inserts a new pointer in the list at a given position.
`Insert`	procedure	`Classes`	Insert an interface to the list.
`Insert`	procedure	`Classes`	Inserts a new pointer in the list at a given position.
`Insert`	procedure	`Classes`	Overrides the method.
`Insert`	procedure	`Classes`	Insert a string in the list.
`Insert`	procedure	`fgl`	Insert a new object in the list.
`Insert`	procedure	`fgl`	Insert a new item in the list.
`Insert`	procedure	`fgl`	Insert a new object in the list.
`Insert`	procedure	`fgl`	Insert a new item in the list.
`Insert`	function	`fgl`	Insert a new slot for key and associated data item in the list.
`Insert`	procedure	`Objects`	Insert a new item in the collection at the end.
`Insert`	procedure	`Objects`	Insert new item in collection.
`Insert`	procedure	`Objects`	Insert a new string in the collection.
`Insert`	procedure	`System`	Insert one string or dynamic array in another.
`Insert`	function	`sysutils`	Insert data in string form into the buffer at a given position.
`Insert`	function	`sysutils`
`Insert`	function	`sysutils`
`Insert`	function	`sysutils`	Insert data in string form into the buffer at a given position.
`Insert`	function	`sysutils`
`Insert`	function	`sysutils`
`InsertComponent`	procedure	`Classes`	Insert the given component in the list of owned components.
`InsertItem`	procedure	`Classes`
`InsertKey`	procedure	`fgl`	Insert a new key in the list.
`InsertKey`	procedure	`fgl`	Insert a new key in the list.
`InsertKey`	procedure	`fgl`	Insert a new key in the list.
`InsertKey`	procedure	`fgl`	Insert a key in the list.
`InsertKeyData`	procedure	`fgl`	Insert a new key with associated data in the list.
`InsertKeyData`	procedure	`fgl`	Insert a new key with associated data in the list.
`InsertKeyData`	procedure	`fgl`	Insert a new key with associated data in the list.
`InsertKeyData`	procedure	`fgl`	Insert a key and associated in the list.
`InsertObject`	procedure	`Classes`	Insert a string and associated object in the list.
`InsertRange`	function	`fgl`
`InsLine`	procedure	`Crt`	Insert an empty line at cursor position.
`InstallUserDriver`	function	`Graph`	Install a user driver.
`InstallUserFont`	function	`Graph`	Install a user-defined font.
`Instance`	property	`Classes`
`InstanceSize`	function	`System`	Return the size of an instance.
`InstanceType`	property	`TypInfo`	Pointer to instance type data.
`InString`	function	`System`
`Int`	function	`System`	Calculate integer part of floating point value.
`Int128Rec`	record	`System`
`Int128Rec`	type	`sysutils`	Record representing a 128-bit unsigned integer.
`Int16`	type	`System`	A signed 16-bits integer.
`int31error`	variable	`go32`	DPMI interrupt call result.
`Int32`	type	`System`	A signed 32-bits integer.
`Int64`	type	`System`	64-bit, signed integer.
`Int64Rec`	record	`sysutils`	Record describing an Int64 value.
`Int8`	type	`System`	A signed 8-bits integer.
`intdivide(variant,variant):variant`	operator	`System`	Implement div (integer division) operation on variants.
`Integer`	type	`objpas`	Redefinition of integer as 32-bit type.
`Integer`	type	`System`	A signed 16-bits integer.
`IntegerArray`	type	`objpas`	Generic array of integer.
`IntegerArray`	type	`System`	Generic array of integer.
`InterestRate`	function	`Math`	Calculate the interest rate value of an investment.
`InterfaceVMTOffset`	function	`System`
`InterleaveFill`	constant	`Graph`	Fill style: Interleaving lines.
`InterlockedCompareExchange`	function	`System`	Conditional exchange.
`InterlockedCompareExchange64`	function	`System`
`InterlockedCompareExchangePointer`	function	`System`	Compare pointers in an atomic operation.
`InterlockedDecrement`	function	`System`	Thread-safe decrement.
`InterlockedDecrement64`	function	`System`
`InterlockedExchange`	function	`System`	Exchange 2 integers in a thread-safe way.
`InterlockedExchange64`	function	`System`
`InterlockedExchangeAdd`	function	`System`	Thread-safe add and exchange of 2 values.
`InterlockedExchangeAdd64`	function	`System`
`InterlockedIncrement`	function	`System`	Thread-safe increment.
`InterlockedIncrement64`	function	`System`
`InternalEllipse`	variable	`Graph`	Hook to draw an ellipse.
`InternalEllipse`	variable	`Graph`	Mode ellipse drawing routine.
`InternalExchange`	procedure	`fgl`
`InternalGet`	function	`fgl`
`InternalItems`	property	`fgl`
`internalmap`	variable	`charset`	Is this an internal map (not dynamically loaded, may not be freed).
`InternalPut`	procedure	`fgl`
`internModeNumber`	variable	`Graph`	Internal mode number. Do not use.
`interruptflag`	constant	`go32`	Check for interrupt flag in .
`InterruptHandling`	topic	`go32`	Interrupt redirection.
`Intersect`	procedure	`Objects`	Reduce rectangle to intersection with another rectangle.
`Intersect`	function	`Types`
`Intersect`	function	`Types`
`IntersectionPopCount`	function	`Classes`
`IntersectRect`	function	`Types`	Return the intersection of 2 rectangles.
`IntersectRectF`	function	`Types`
`IntersectsWith`	function	`Types`
`IntersectsWith`	function	`Types`
`IntfParent`	property	`TypInfo`	Parent interface type data.
`InTo`	function	`Types`
`IntPower`	function	`Math`	Return integer power.
`IntPtr`	type	`System`	A signed integer with the same size in bytes as pointer.
`Intr`	procedure	`Dos`	Execute interrupt.
`IntToBin`	function	`StrUtils`	Converts an integer to a binary string representation, inserting spaces at fixed locations.
`IntToHex`	function	`sysutils`	Convert an integer value to a hexadecimal string.
`IntToIdent`	function	`Classes`	Looks up an identifier for an integer value in a identifier-to-integer map list.
`IntToRoman`	function	`StrUtils`	Represent an integer with roman numerals.
`IntToStr`	function	`sysutils`	Convert an integer value to a decimal string.
`INVALID_HANDLE_VALUE`	constant	`sysutils`
`InvalidCustomVariantType`	variable	`Variants`	Handler for invalid custom variants.
`InvalidDateDayError`	procedure	`DateUtils`	Raise an EConvertError exception when a day is not a valid day of a year.
`InvalidDateMonthWeekError`	procedure	`DateUtils`	Raise an EConvertError exception when a Year,Month,WeekOfMonth,DayofWeek is invalid.
`InvalidDateTimeError`	procedure	`DateUtils`	Raise an EConvertError about an invalid date-time specification.
`InvalidDateWeekError`	procedure	`DateUtils`	Raise an EConvertError with an invalid Year, WeekOfyear and DayOfWeek specification.
`InvalidDayOfWeekInMonthError`	procedure	`DateUtils`	Raise an EConvertError exception when a Year,Month,NthDayofWeek,DayofWeek is invalid.
`invalidhandle`	variable	`Objects`	Value for invalid handle. Initial value for file stream handles or when the stream is closed.
`InvalidPoint`	function	`Classes`	Check whether a point is invalid.
`InvalidSeek`	procedure	`Classes`
`Invariant`	function	`sysutils`
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`inverse`	function	`matrix`	Calculates the inverse of the matrix.
`Invoke`	function	`Classes`	The IDispatch:Invoke call for automation servers.
`Invoke`	function	`Classes`
`Invoke`	function	`System`	Invoke a dispatch method.
`IObjectInstance`	constant	`System`	GUID for the IObject interface.
`IObserver`	interface	`Classes`
`IObserverTrack`	interface	`Classes`
`IOCtl_TCGETS`	constant	`Unix`	IOCTL call number: get Terminal Control settings.
`IOPorts`	topic	`go32`	I/O port access.
`IOResult`	function	`System`	Return result of last file IO operation.
`IORoutines`	topic	`sysutils`	File input/output routines.
`iov_base`	variable	`BaseUnix`	Location of the buffer.
`iov_len`	variable	`BaseUnix`	Length of the buffer.
`iovec`	record	`BaseUnix`	IO buffer structure.
`IP_ADD_MEMBERSHIP`	constant	`Sockets`	add an IP group membership.
`IP_ADD_SOURCE_MEMBERSHIP`	constant	`Sockets`	join source group.
`IP_BLOCK_SOURCE`	constant	`Sockets`	block data from source.
`IP_DEFAULT_MULTICAST_LOOP`	constant	`Sockets`	Undocumented ?
`IP_DEFAULT_MULTICAST_TTL`	constant	`Sockets`	Undocumented ?
`IP_DROP_MEMBERSHIP`	constant	`Sockets`	drop an IP group membership.
`IP_DROP_SOURCE_MEMBERSHIP`	constant	`Sockets`	leave source group.
`IP_HDRINCL`	constant	`Sockets`	Header is included with data.
`IP_MAX_MEMBERSHIPS`	constant	`Sockets`	Maximum group memberships for multicast messages.
`IP_MSFILTER`	constant	`Sockets`	Undocumented ?
`IP_MTU_DISCOVER`	constant	`Sockets`	Undocumented ?
`IP_MULTICAST_IF`	constant	`Sockets`	set/get IP multicast i/f.
`IP_MULTICAST_LOOP`	constant	`Sockets`	set/get IP multicast loopback.
`IP_MULTICAST_TTL`	constant	`Sockets`	set/get IP multicast ttl.
`IP_OPTIONS`	constant	`Sockets`	IP per-packet options.
`IP_PKTINFO`	constant	`Sockets`	Undocumented ?
`IP_PKTOPTIONS`	constant	`Sockets`	Undocumented ?
`IP_PMTUDISC`	constant	`Sockets`	Undocumented ?
`IP_PMTUDISC_DO`	constant	`Sockets`	Always DF.
`IP_PMTUDISC_DONT`	constant	`Sockets`	Never send DF frames.
`IP_PMTUDISC_WANT`	constant	`Sockets`	Use per route hints.
`IP_RECVERR`	constant	`Sockets`	Undocumented ?
`IP_RECVOPTS`	constant	`Sockets`	Receive all IP options w/datagram.
`IP_RECVRETOPTS`	constant	`Sockets`	Receive IP options for response.
`IP_RECVTOS`	constant	`Sockets`	Undocumented ?
`IP_RECVTTL`	constant	`Sockets`	Undocumented ?
`IP_RETOPTS`	constant	`Sockets`	Set/get IP per-packet options.
`IP_ROUTER_ALERT`	constant	`Sockets`	Undocumented ?
`IP_TOS`	constant	`Sockets`	IP type of service and precedence.
`IP_TTL`	constant	`Sockets`	IP time to live.
`IP_UNBLOCK_SOURCE`	constant	`Sockets`	unblock data from source.
`IPC_CREAT`	constant	`ipc`	Create if key is nonexistent.
`IPC_EXCL`	constant	`ipc`	fail if key exists.
`IPC_INFO`	constant	`ipc`	For ipcs call.
`IPC_NOWAIT`	constant	`ipc`	return error on wait.
`ipc_pid_t`	type	`unixtype`	Process ID.
`IPC_PRIVATE`	constant	`ipc`
`IPC_RMID`	constant	`ipc`	Remove resource.
`IPC_SET`	constant	`ipc`	set ipc_perm options.
`IPC_STAT`	constant	`ipc`	get ipc_perm options.
`ipoff`	variable	`BaseUnix`	FPU state ipoff (legacy).
`IPositionLinkObserver`	interface	`Classes`
`IPositionLinkObserver170`	interface	`Classes`
`IPPROTO_AH`	constant	`Sockets`	authentication header.
`IPPROTO_COMP`	constant	`Sockets`	Compression Header Protocol.
`IPPROTO_DSTOPTS`	constant	`Sockets`	IPv6 destination options.
`IPPROTO_EGP`	constant	`Sockets`	Exterior Gateway Protocol.
`IPPROTO_ENCAP`	constant	`Sockets`	Encapsulation Header.
`IPPROTO_ESP`	constant	`Sockets`	encapsulating security payload.
`IPPROTO_FRAGMENT`	constant	`Sockets`	IPv6 fragmentation header.
`IPPROTO_GRE`	constant	`Sockets`	General Routing Encapsulation.
`IPPROTO_HOPOPTS`	constant	`Sockets`	IPv6 Hop-by-Hop options.
`IPPROTO_ICMP`	constant	`Sockets`	Internet Control Message Protocol.
`IPPROTO_ICMPV6`	constant	`Sockets`	ICMPv6.
`IPPROTO_IDP`	constant	`Sockets`	XNS IDP protocol.
`IPPROTO_IGMP`	constant	`Sockets`	Internet Group Management Protocol.
`IPPROTO_IP`	constant	`Sockets`	Dummy protocol for TCP.
`IPPROTO_IPIP`	constant	`Sockets`	IPIP tunnels (older KA9Q tunnels use 94).
`IPPROTO_IPV6`	constant	`Sockets`	IPv6 header.
`IPPROTO_MAX`	constant	`Sockets`	Maximum value for IPPROTO options.
`IPPROTO_MTP`	constant	`Sockets`	Multicast Transport Protocol.
`IPPROTO_NONE`	constant	`Sockets`	IPv6 no next header.
`IPPROTO_PIM`	constant	`Sockets`	Protocol Independent Multicast.
`IPPROTO_PUP`	constant	`Sockets`	PUP protocol.
`IPPROTO_RAW`	constant	`Sockets`	Raw IP packets.
`IPPROTO_ROUTING`	constant	`Sockets`	IPv6 routing header.
`IPPROTO_RSVP`	constant	`Sockets`	Reservation Protocol.
`IPPROTO_SCTP`	constant	`Sockets`	Stream Control Transmission Protocol.
`IPPROTO_TCP`	constant	`Sockets`	Transmission Control Protocol.
`IPPROTO_TP`	constant	`Sockets`	SO Transport Protocol Class 4.
`IPPROTO_UDP`	constant	`Sockets`	User Datagram Protocol.
`IPV6_ADD_MEMBERSHIP`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_ADDRFORM`	constant	`Sockets`	Change the IPV6 address into a different address family. Deprecated.
`IPV6_AUTHHDR`	constant	`Sockets`	GetSockOpt/SetSockopt: Deliver authentication header messages.
`IPV6_CHECKSUM`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_DROP_MEMBERSHIP`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_DSTOPTS`	constant	`Sockets`	Deliver destination option control messages.
`IPV6_HOPLIMIT`	constant	`Sockets`	Deliver an integer containing the HOP count.
`IPV6_HOPOPTS`	constant	`Sockets`	Deliver hop option control messages.
`IPV6_IPSEC_POLICY`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_JOIN_ANYCAST`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_JOIN_GROUP`	constant	`Sockets`	GetSockOpt/SetSockopt: Control membership (join group) in multicast groups.
`IPV6_LEAVE_ANYCAST`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_LEAVE_GROUP`	constant	`Sockets`	GetSockOpt/SetSockopt: Control membership (leave group)in multicast groups.
`IPV6_MTU`	constant	`Sockets`	GetSockOpt/SetSockopt: Get/Set the MTU for the socket.
`IPV6_MTU_DISCOVER`	constant	`Sockets`	GetSockOpt/SetSockopt: Get/Set Control path MTU Discovery on the socket.
`IPV6_MULTICAST_HOPS`	constant	`Sockets`	GetSockOpt/SetSockopt: Get/Set the multicast hop limit.
`IPV6_MULTICAST_IF`	constant	`Sockets`	GetSockOpt/SetSockopt: Get/Set device for multicast packages on the socket.
`IPV6_MULTICAST_LOOP`	constant	`Sockets`	GetSockOpt/SetSockopt: Control whether socket sees multicast packages that it has sent itself.
`IPV6_NEXTHOP`	constant	`Sockets`	sendmsg: set next hop for IPV6 datagram.
`IPV6_PKTINFO`	constant	`Sockets`	Change delivery options for incoming IPV6 datagrams.
`IPV6_PKTOPTIONS`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_PMTUDISC_DO`	constant	`Sockets`	Always DF.
`IPV6_PMTUDISC_DONT`	constant	`Sockets`	Never send DF frames.
`IPV6_PMTUDISC_WANT`	constant	`Sockets`	Use per route hints.
`IPV6_RECVERR`	constant	`Sockets`	GetSockOpt/SetSockopt: Control receiving of asynchronous error options.
`IPV6_ROUTER_ALERT`	constant	`Sockets`	GetSockOpt/SetSockopt: Get/Set Pass all forwarded packets containing router alert option.
`IPV6_RTHDR`	constant	`Sockets`	Deliver routing header control messages.
`IPV6_RTHDR_LOOSE`	constant	`Sockets`	Hop doesn't need to be neighbour.
`IPV6_RTHDR_STRICT`	constant	`Sockets`	Hop must be a neighbour.
`IPV6_RTHDR_TYPE_0`	constant	`Sockets`	IPv6 Routing header type 0.
`IPV6_RXDSTOPTS`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_RXHOPOPTS`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_RXSRCRT`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPV6_UNICAST_HOPS`	constant	`Sockets`	GetSockOpt/SetSockopt: Get/Set unicast hop limit.
`IPV6_V6ONLY`	constant	`Sockets`	GetSockOpt/SetSockopt: Handle IPV6 connections only.
`IPV6_XFRM_POLICY`	constant	`Sockets`	Undocumented Getsockopt option ?
`IPX_TYPE`	constant	`Sockets`	IPX type.
`IReadWriteSync`	interface	`sysutils`	Read/Write synchronizer.
`is_amd_3d_cpu`	constant	`mmx`	Is the current processor equipped with a AMD 3D CPU.
`is_amd_3d_dsp_cpu`	constant	`mmx`	Is the current processor equipped with a AMD 3D DSP CPU.
`is_amd_3d_mmx_cpu`	constant	`mmx`	Is the current processor equipped with a AMD 3D MMX CPU.
`Is_IntResource`	function	`System`	Check whether a resource is an internal resource.
`is_mmx_cpu`	constant	`mmx`	Is the current processor equipped with a MMX capable CPU.
`Is_Object`	function	`Objects`	Check whether a pointer points to an object.
`is_sse_cpu`	constant	`mmx`	Is the current processor equipped with a SSE CPU.
`is_sse2_cpu`	constant	`mmx`	Is the current processor equipped with a SSE2 CPU.
`IsAbortResult`	function	`System.UITypes`	Indicates whether the specified modal result value is one of the values returned when a dialog has been cancelled.
`IsAM`	function	`DateUtils`
`IsAM`	function	`DateUtils`
`IsAmbiguousTime`	function	`DateUtils`
`IsAnAllResult`	function	`System.UITypes`	Indicates whether the specified modal result value is one of the values which include the "To All" qualifier.
`IsClear`	function	`Variants`	Is the custom value unassigned ?
`IsConsole`	variable	`System`	True for console applications, False for GUI applications.
`IsConstValue`	function	`System`	Check if a value is an actual constant.
`IsControl`	function	`Character`	Alias for TCharacter.IsControl.
`IsControl`	function	`Character`	Check whether a Unicode character is a Unicode control character.
`IsControl`	function	`Character`
`IsCurrentOrParentDir`	function	`sysutils`
`IsCurrentOrParentDir`	function	`sysutils`
`IsDaylightTime`	function	`DateUtils`
`IsDefined`	function	`Character`
`IsDefined`	function	`Character`
`IsDefined`	function	`Character`
`IsDeleted`	function	`unicodedata`	Check flags if deleted bit is set.
`IsDelimiter`	function	`sysutils`	Check whether a given string is a delimiter character.
`IsDelimiter`	function	`sysutils`
`IsDelimiter`	function	`sysutils`
`IsDelimiter`	function	`sysutils`
`IsDelimiter`	function	`sysutils`
`IsDigit`	function	`Character`	Alias for TCharacter.IsDigit.
`IsDigit`	function	`Character`	Check whether a Unicode character is a digit.
`IsDigit`	function	`Character`
`IsDirectory`	function	`sysutils`
`IsDirectory`	function	`sysutils`
`IsDynArrayRectangular`	function	`System`	Check whether all dimensions have the same size.
`IsEditing`	property	`Classes`
`IsEmpty`	function	`System`
`IsEmpty`	function	`sysutils`
`IsEmpty`	function	`sysutils`
`IsEmpty`	function	`sysutils`
`IsEmpty`	function	`sysutils`
`IsEmpty`	function	`Types`
`IsEmpty`	function	`Types`
`IsEmptyStr`	function	`StrUtils`	Check whether a string is empty, disregarding whitespace characters.
`IsEqualGUID`	function	`sysutils`	Check whether two TGUID variables are equal.
`ISequentialStream`	interface	`Types`	Sequential stream object interface.
`IsFileNameCasePreserving`	function	`sysutils`
`IsFileNameCaseSensitive`	function	`sysutils`
`IsFunctionKey`	function	`keyboard`	Check whether a given event is a function key event.
`IsHighSurrogate`	function	`Character`	Alias for TCharacter.IsHighSurrogate.
`IsHighSurrogate`	function	`Character`	Check whether a Unicode character is a surrogate in the high range.
`IsHighSurrogate`	function	`Character`
`IsImplementorOf`	function	`Classes`	Checks if the current component is the implementor of the interface.
`IsInArray`	function	`Character`
`IsInfinite`	function	`Math`	Check whether value is infinite.
`IsInfinity`	function	`sysutils`	Check whether a value is positive or negative infinity.
`IsInfinity`	function	`sysutils`	Check whether a value is positive or negative infinity.
`IsInfinity`	function	`sysutils`	Check whether a value is positive or negative infinity.
`ISingleCastObserver`	interface	`Classes`
`IsInLeapYear`	function	`DateUtils`	Determine whether a date is in a leap year.
`IsInLeapYear`	function	`DateUtils`
`isInternalHeaptrcAllocation`	property	`heaptrc`
`IsInvalidInput`	function	`sysutils`
`IsInvalidTime`	function	`DateUtils`
`IsLeadChar`	function	`sysutils`	Is the character code the lead character of a multi-byte character.
`IsLeapYear`	function	`sysutils`	Determine whether a year is a leap year.
`IsLetter`	function	`Character`	Alias for TCharacter.IsLetter.
`IsLetter`	function	`Character`	Check if a Unicode character is a letter.
`IsLetter`	function	`Character`
`IsLetterOrDigit`	function	`Character`	Alias for TCharacter.IsLetterOrDigit.
`IsLetterOrDigit`	function	`Character`	Check if a Unicode character is a letter or digit.
`IsLetterOrDigit`	function	`Character`
`IsLibrary`	variable	`System`	True if the current module is a library. Otherwise module is an executable.
`IsLower`	function	`Character`	Alias for TCharacter.IsLower.
`IsLower`	function	`Character`	Check if a Unicode character is a lowercase letter.
`IsLower`	function	`Character`
`IsLowSurrogate`	function	`Character`	Alias for TCharacter.IsLowSurrogate.
`IsLowSurrogate`	function	`Character`	Check whether a Unicode character is a surrogate in the low range.
`IsLowSurrogate`	function	`Character`
`IsLstAvailable`	function	`printer`	Determine whether printer is available.
`IsManagedType`	function	`System`	Check if a type is a managed type.
`IsMemoryManagerSet`	function	`System`	Is the memory manager set.
`IsModified`	function	`Classes`
`IsMultiThread`	constant	`System`	Indicates whether more than one thread is running in the application.
`IsNan`	function	`Math`	Check whether value is Not a Number.
`IsNan`	function	`sysutils`	Check whether a value equals NaN.
`IsNan`	function	`sysutils`	Check whether a value equals NaN.
`IsNan`	function	`sysutils`	Check whether a value equals NaN.
`IsNegativeInfinity`	function	`sysutils`	Check whether a value is negative infinity.
`IsNegativeInfinity`	function	`sysutils`	Check whether a value is negative infinity.
`IsNegativeInfinity`	function	`sysutils`	Check whether a value is negative infinity.
`IsNegativeResult`	function	`System.UITypes`	Indicates whether the specified modal result value is a negative result where a dialog has not been completed successfully.
`IsNullOrEmpty`	function	`sysutils`
`IsNullOrEmpty`	function	`sysutils`
`IsNullOrEmpty`	function	`sysutils`
`IsNullOrEmpty`	function	`sysutils`
`IsNullOrWhiteSpace`	function	`sysutils`
`IsNullOrWhiteSpace`	function	`sysutils`
`IsNullOrWhiteSpace`	function	`sysutils`
`IsNullOrWhiteSpace`	function	`sysutils`
`IsNumber`	function	`Character`	Alias for TCharacter.IsNumber.
`IsNumber`	function	`Character`	Check if a Unicode character is a number.
`IsNumber`	function	`Character`
`ISO8601ToDate`	function	`DateUtils`	Converts a date/time value in ISO 8601 notation to a native TDateTime type.
`ISO8601ToDateDef`	function	`DateUtils`	Converts an ISO 8601 date/time string to a TDateTime type.
`IsObserving`	function	`Classes`
`IsOnExecuteLinked`	function	`Classes`	Returns whether the client has it's OnExecute property linked.
`isopen`	variable	`exeinfo`	Is the file handle f open ?
`IsPathDelimiter`	function	`sysutils`	Is the character at the given position a pathdelimiter ?
`IsPM`	function	`DateUtils`	Determine whether a time is PM or AM.
`IsPM`	function	`DateUtils`
`IsPositiveInfinity`	function	`sysutils`	Check whether a value is positive infinity.
`IsPositiveInfinity`	function	`sysutils`	Check whether a value is positive infinity.
`IsPositiveInfinity`	function	`sysutils`	Check whether a value is positive infinity.
`IsPositiveResult`	function	`System.UITypes`	Indicates whether the specified modal result value is a positive result where a dialog has been completed successfully.
`IsPublishedProp`	function	`TypInfo`	Check whether a published property exists.
`IsPunctuation`	function	`Character`	Alias for TCharacter.IsPunctuation.
`IsPunctuation`	function	`Character`	Check if a Unicode character is a punctuation character.
`IsPunctuation`	function	`Character`
`IsReadableProp`	function	`TypInfo`	Can the property be read.
`IsReadOnly`	property	`Classes`
`IsRectEmpty`	function	`Types`	Check whether a rectangle is empty.
`IsRequired`	function	`Classes`
`IsSameDay`	function	`DateUtils`	Check if two date/time indications are the same day.
`IsSameDay`	function	`DateUtils`
`IsSameMonth`	function	`DateUtils`	Check if 2 dates are in the same month.
`IsSeparator`	function	`Character`	Alias for TCharacter.IsSeparator.
`IsSeparator`	function	`Character`	Check if a Unicode character is a separator character.
`IsSeparator`	function	`Character`
`IsSingleByte`	property	`sysutils`	Is the encoding a single-byte encoding or not ?
`IsSingleProcessor`	property	`Classes`	Is the current system single processor or not.
`IsStandardEncoding`	function	`sysutils`	Check if the encoding is one of the standard encodings.
`IsStandardTime`	function	`DateUtils`
`IsStatic`	variable	`TypInfo`
`IsStoredProp`	function	`TypInfo`	Check whether a property is stored.
`IsSurrogate`	function	`Character`	Alias for TCharacter.IsSurrogate.
`IsSurrogate`	function	`Character`	Check whether a Unicode character is a surrogate.
`IsSurrogate`	function	`Character`
`IsSurrogatePair`	function	`Character`	Alias for TCharacter.IsSurrogatePair.
`IsSurrogatePair`	function	`Character`	Check if a pair of characters is a set of high/low surrogate characters.
`IsSurrogatePair`	function	`Character`
`IsSymbol`	function	`Character`	Alias for TCharacter.IsSymbol.
`IsSymbol`	function	`Character`	Check if a Unicode character is a symbol character.
`IsSymbol`	function	`Character`
`IsToday`	function	`DateUtils`	Check whether a given date is today.
`IsToday`	function	`DateUtils`
`IStream`	interface	`Types`	COM stream abstraction.
`IStreamPersist`	interface	`Classes`	Persistence streaming interface.
`IStringsAdapter`	interface	`Classes`	IStringsAdapter Interface declaration.
`IsUniqueGlobalComponentName`	function	`Classes`
`IsUniqueGlobalComponentNameProc`	variable	`Classes`
`IsUpper`	function	`Character`	Alias for TCharacter.IsUpper.
`IsUpper`	function	`Character`	Check whether a Unicode character is an uppercase letter.
`IsUpper`	function	`Character`
`IsValid`	function	`unicodedata`	Check flags for validity.
`IsValidChar`	function	`Classes`
`IsValidDate`	function	`DateUtils`	Check whether a set of values is a valid date indication.
`IsValidDateDay`	function	`DateUtils`	Check whether a given year/day of year combination is a valid date.
`IsValidDateMonthWeek`	function	`DateUtils`	Check whether a given year/month/week/day of the week combination is a valid day.
`IsValidDateTime`	function	`DateUtils`	Check whether a set of values is a valid date and time indication.
`IsValidDateWeek`	function	`DateUtils`	Check whether a given year/week/day of the week combination is a valid day.
`IsValidIdent`	function	`sysutils`	Check whether a string is a valid identifier name.
`IsValidTime`	function	`DateUtils`	Check whether a set of values is a valid time indication.
`IsVariable`	function	`unicodedata`	Check if a weight is a variable weight.
`IsWeightCompress_1`	function	`unicodedata`	Check whether weight compression flag 1 is set.
`IsWeightCompress_2`	function	`unicodedata`	Check whether weight compression flag 2 is set.
`IsWhiteSpace`	function	`Character`	Alias for TCharacter.IsWhiteSpace.
`IsWhiteSpace`	function	`Character`	Check whether a Unicode character is a whitespace character.
`IsWhiteSpace`	function	`Character`
`IsWild`	function	`StrUtils`	Check whether a string matches a wildcard search expression.
`IsWordPresent`	function	`StrUtils`	Check for the presence of a word in a string.
`IsWriteableProp`	function	`TypInfo`	Can the property be written.
`IsZero`	function	`Math`	Check whether value is zero.
`IsZero`	function	`Types`
`IsZero`	function	`Types`
`IsZero`	function	`Types`
`IsZero`	function	`Types`
`Item`	property	`unicodedata`
`ItemClass`	property	`Classes`	Class pointer for each item in the collection.
`ItemIsManaged`	function	`fgl`	Indicates whether the list item is a managed type or not.
`ItemIsManaged`	function	`fgl`	Indicates whether the list item is a managed type or not.
`ItemPtrCompare`	function	`fgl`
`ItemPtrCompare`	function	`fgl`
`ItemPtrCompare`	function	`fgl`
`Items`	property	`Classes`	Provides Index-based, sequential, access to the interfaces in the list.
`Items`	property	`Classes`	Indexed array of items in the collection.
`Items`	property	`Classes`	Provides access to the pointers in the list.
`Items`	property	`Classes`	Array-based access to the list's items.
`Items`	property	`Classes`	Provides access to the pointers in the list.
`Items`	property	`fgl`	Indexed access to objects in the list.
`Items`	property	`fgl`	Indexed access to items in the list.
`Items`	property	`fgl`	Indexed access to objects in the list.
`Items`	property	`fgl`	Items in the list.
`Items`	variable	`Objects`	Pointer to list of items.
`ItemSize`	property	`fgl`	Size of the items in the list.
`IteratorLinkFinish`	procedure	`Classes`
`IteratorLinkID`	constant	`Classes`
`IteratorLinkMoveNext`	function	`Classes`
`IteratorLinkStartFrom`	procedure	`Classes`
`IteratorLinkUpdateControlComponent`	procedure	`Classes`
`IUnknown`	interface	`System`	Basic interface for all COM-based interfaces.
`IVarInstanceReference`	interface	`Variants`	Interface for variants that refer to an object.
`IVarInvokeable`	interface	`Variants`	Interface needed for custom variants that need to implement dynamic properties and methods.
`IVCLComObject`	interface	`Classes`	Com automation Object interface.
`Ivory`	constant	`System.UITypes`
`Ivory`	constant	`System.UITypes`

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