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Reference for unit 'System' (#rtl)

Reference for unit 'System': Constants

`AbstractErrorProc`		Custom abstract error handling procedure
`AllFilesMask`		File mask for all files on the current platform
`AllowDirectorySeparators`		Set of characters considered directory separators
`AllowDriveSeparators`		Set of characters considered drive separators
`AssertErrorProc`		Custom assert error handling procedure
`BacktraceStrFunc`		Standard backtrace formatting routine
`CatchAllExceptions`		Mask indicating all exception kinds
`cExceptionFrame`		Indicator of except frame on the exception frame stack
`cFinalizeFrame`		Indicator of finally frame on the exception frame stack
`CP_ACP`		ANSI code page identifier
`CP_ASCII`		US-ASCII code page identifier
`CP_NONE`		No known code page
`CP_OEMCP`		OEM code page identifier
`CP_UTF16`		UTF-16 code page identifier
`CP_UTF16BE`		Big-endian UTF-16 code page identifier
`CP_UTF7`		UTF-7 code page identifier
`CP_UTF8`		UTF-8 code page identifier
`CtrlZMarksEOF`		Determine whether CTRL-Z marks the end of file.
`Default8087CW`
`DefaultMXCSR`
`DefaultStackSize`		Default size for a new thread's stack (4MiB by default).
`DefaultTextLineBreakStyle`		Default line ending style.
`DirectorySeparator`		Character used to separate directory parts.
`DriveSeparator`		Character used to separate directory parts.
`ErrorAddr`		Address where the last error occurred.
`ErrorCode`		Last error code.
`ErrorProc`		Custom error handling procedure.
`ExceptClsProc`		Callback used to determine the exception class for an OS exception
`ExceptObjProc`		Callback used to convert OS exceptions to FPC exceptions
`ExceptProc`		Current exception handling procedure.
`ExitProc`		Exit procedure pointer.
`ExtensionSeparator`		Character which separates the filename from the file extension.
`E_NOINTERFACE`		Interface call result: Error: not an interface
`E_NOTIMPL`		Interface call result: Interface not implemented
`E_UNEXPECTED`		Interface call result: Unexpected error
`FileMode`		Default file mode for untyped files.
`FileNameCasePreserving`		OS preserves case in filenames when creating or renaming entries.
`FileNameCaseSensitive`		OS treatment of filenames is case sensitive.
`filerecnamelength`		Maximum filename size
`float_flag_denormal`		IEC/IEEE floating-point exception flag: ?
`float_flag_divbyzero`		IEC/IEEE floating-point exception flag: Division by zero error
`float_flag_inexact`		IEC/IEEE floating-point exception flag: ?
`float_flag_invalid`		IEC/IEEE floating-point exception flag: Invalid operation error
`float_flag_overflow`		IEC/IEEE floating-point exception flag: Overflow error
`float_flag_underflow`		IEC/IEEE floating-point exception flag: Underflow error
`float_round_down`		Round down
`float_round_nearest_even`		Round to nearest even number
`float_round_to_zero`		Round in the direction of zero (down for positive, up for negative)
`float_round_up`		Round up
`fmAppend`		File mode: File is open for writing, appending to the end.
`fmClosed`		File mode: File is closed.
`fmInOut`		File mode: File is open for reading and writing.
`fmInput`		File mode: File is open for reading.
`fmOutput`		File mode: File is open for writing.
`FPC_EXCEPTION`		Type of exception: Free pascal exception
`growheapsize1`		Grow rate for block less than 256 Kb.
`growheapsize2`		Grow rate for block larger than 256 Kb.
`growheapsizesmall`		Fixed size small blocks grow rate
`has_mmx_support`		CPU has mmx support
`has_sse2_support`		CPU has sse2 support?
`has_sse3_support`		CPU has sse3 support?
`has_sse_support`		CPU has SSE support ?
`InitProc`		Initialization routine
`IObjectInstance`		GUID for the IObject interface
`IsMultiThread`		Indicates whether more than one thread is running in the application.
`LFNSupport`		Constant describing support for long filenames.
`LineEnding`		Constant describing the current line ending character.
`maxExitCode`		Maximum exit code supported by the operating system.
`MaxInt`		Maximum integer value.
`MaxKeptOSChunks`		Maximum number of OS chunks to be kept in memory
`MaxLongint`		Maximum longint value.
`MaxPathLen`		Constant defining the maximum length of filenames (including path)
`MaxSIntValue`		Maximum String-size value.
`MaxSmallint`		Maximum smallint value.
`MaxUIntValue`		Maximum unsigned integer value.
`Max_Frame_Dump`		Maximum number of frames to show in error frame dump.
`ModuleIsCpp`		program compiled by CPP ?
`ModuleIsLib`		Determines whether the current module is a library
`ModuleIsPackage`		Determines whether the current module is a package
`NilHandle`		Correctly typed Nil handle - returned on error by LoadLibrary
`PathSeparator`		Character used to separate paths in a search list
`RaiseMaxFrameCount`		Maximum number of frames to include in TExceptObject
`RaiseProc`		Procedure to raise an exception.
`RT_ACCELERATOR`		Constant identifying an accelerator resource
`RT_ANICURSOR`		Resource type: Animated cursor
`RT_ANIICON`		Resource type: Animated icon
`RT_BITMAP`		Constant identifying a bitmap resource
`RT_CURSOR`		Constant identifying a cursor resource
`RT_DIALOG`		Constant identifying a dialog resource
`RT_FONT`		Constant identifying a font resource
`RT_FONTDIR`		Constant identifying a font directory resource
`RT_GROUP_CURSOR`		Constant identifying a group cursor resource
`RT_GROUP_ICON`		Constant identifying a group icon resource
`RT_HTML`		Resource type: HTML data
`RT_ICON`		Constant identifying an icon resource
`RT_MANIFEST`		Resource type: manifest
`RT_MENU`		Constant identifying a menu resource
`RT_MESSAGETABLE`		Constant identifying a message data resource
`RT_RCDATA`		Constant identifying a binary data resource
`RT_STRING`		Constant identifying a string table resource
`RT_VERSION`		Constant identifying a version info resource
`RuntimeErrorExitCodes`		Mapping between runtime-error constants and program exit codes
`SafeCallErrorProc`		Error handler for safecall errors
`SharedSuffix`		Shared library suffix for the current platform
`sLineBreak`		Alias for LineEnding
`StackError`		Indicate whether there was a stack error.
`StdErrorHandle`		Value of the OS handle for the standard error-output file.
`StdInputHandle`		Value of the OS handle for the standard input file.
`StdOutputHandle`		Value of the OS handle for the standard output file.
`S_FALSE`		Interface call result: Not OK
`S_OK`		Interface call result: OK
`Test8086`		8086 or older ?
`Test8087`		8087 floating point CPU or not ?
`TextRecBufSize`		Default buffer size for text files
`TextRecNameLength`		maximum filename size for text files.
`ThreadingAlreadyUsed`		Internal constant for the threading system. Don't use.
`tkAnsiChar`		tkChar alias
`tkAnsiString`		alias for tkAString
`tkShortString`		Alias for tkSString
`tkUnicodeString`		Alias for tkUString
`tkWideChar`		Alias for tkUchar
`tkWideString`		Alias for tkWString
`UnixGetModuleByAddrHook`		(Unix only) callback for `GetModuleByAddr`
`UnusedHandle`		Value indicating an unused file handle (as reported by the OS).
`VarAddRefProc`		Callback to increase reference count of a variant.
`varAny`		Variant type: Any
`varArray`		Variant type: variant Array
`varBoolean`		Variant type: Boolean type
`varByRef`		Variant type: By reference
`varByte`		Variant type: Byte (8 bit)
`VarClearProc`		Callback to clear a variant.
`VarCopyProc`		Callback to copy a variant
`varCurrency`		Variant type: Currency
`varDate`		Variant type: Date
`varDecimal`		Variant type: Decimal (BCD)
`varDispatch`		Variant type: dispatch interface
`varDouble`		Variant type: Double float
`varEmpty`		Variant type: `Empty` variant
`varError`		Variant type: Error type
`varInt64`		Variant type: Integer (64-Bit)
`varInteger`		Variant type: Integer (32-bit)
`varLongWord`		Variant type: Word (32 bit)
`varNull`		Variant type: Null variant
`varOleStr`		Variant type: OLE string (widestring)
`varQWord`		Variant type: Word (64-bit)
`varRecord`		Record variant type
`varShortInt`		Variant type: Shortint (16 bit)
`varSingle`		Variant type: Single float
`varSmallInt`		Variant type: smallint (8 bit)
`varStrArg`		Variant type: String
`varString`		Variant type: String
`VarToLStrProc`		Callback to convert a variant to a ansistring.
`VarToWStrProc`		Callback to convert a variant to a widestring.
`varTypeMask`		Variant type: Mask to extract type
`varUInt64`		Unsigned 64-bit value in a variant
`varUnknown`		Variant type: Unknown
`varUStrArg`		Unicode string argument value
`varUString`		Unicode string value in Variant
`varVariant`		Variant type: Variant (arrays only)
`varWord`		Variant type: Word (16 bit)
`varWord64`		Variant type: Word (64-bit)
`vmtAfterConstruction`		VMT Layout: ?
`vmtAutoTable`		VMT layout: ?
`vmtBeforeDestruction`		VMT Layout: ?
`vmtClassName`		VMT Layout: location of class name.
`vmtDefaultHandler`		VMT Layout: ?
`vmtDefaultHandlerStr`		VMT Layout: ?
`vmtDestroy`		VMT Layout: Location of destructor pointer.
`vmtDispatch`		Offset to dispatch table
`vmtDispatchStr`		Offset to string dispatch table
`vmtDynamicTable`		VMT Layout: location of dynamic methods table.
`vmtEquals`		Offset to the `Equals` method pointer
`vmtFieldTable`		VMT Layout: Location of fields table.
`vmtFreeInstance`		VMT Layout: location of FreeInstance method.
`vmtGetHashCode`		Offset to the `GetHashCode` method pointer
`vmtInitTable`		VMT Layout: ?
`vmtInstanceSize`		VMT Layout: Location of class instance size in VMT
`vmtIntfTable`		VMT layout: Interface table
`vmtMethodStart`		VMT layout: start of method table.
`vmtMethodTable`		VMT Layout: Method table start.
`vmtMsgStrPtr`		VMT layout: message strings table.
`vmtNewInstance`		VMT Layout: location of NewInstance method.
`vmtParent`		VMT Layout: location of pointer to parent VMT.
`vmtSafeCallException`		VMT Layout: ?
`vmtToString`		Offset to the `ToString` method pointer
`vmtTypeInfo`		VMT Layout: Location of class type information.
`vtAnsiString`		TVarRec type: Ansistring
`vtBoolean`		TVarRec type: Boolean
`vtChar`		TVarRec type: Char
`vtClass`		TVarRec type: Class type
`vtCurrency`		TVarRec type: Currency
`vtExtended`		TVarRec type: Extended
`vtInt64`		TVarRec type: Int64 (signed 64-bit integer)
`vtInteger`		TVarRec type: Integer
`vtInterface`		TVarRec type: Interface
`vtObject`		TVarRec type: Object instance
`vtPChar`		TVarRec type: PChar
`vtPointer`		TVarRec type: pointer
`vtPWideChar`		TVarRec type: PWideChar
`vtQWord`		TVarRec type: QWord (unsigned 64-bit integer)
`vtString`		TVarRec type: String
`vtUnicodeString`		Unicode string argument
`vtVariant`		TVarRec type: Variant
`vtWideChar`		TVarRec type: Widechar
`vtWideString`		TVarRec type: WideString