Package
Unit BaseUnix
Unit Character
Unit charset
Unit Classes
Unit clocale
Unit cmem
Unit collation_de
Unit collation_es
Unit collation_fr_ca
Unit collation_ja
Unit collation_ko
Unit collation_ru
Unit collation_sv
Unit collation_zh
Unit cp1250
Unit cp1251
Unit cp1252
Unit cp1253
Unit cp1254
Unit cp1255
Unit cp1256
Unit cp1257
Unit cp1258
Unit cp437
Unit cp646
Unit cp850
Unit cp852
Unit cp856
Unit cp866
Unit cp874
Unit cp8859_1
Unit cp8859_2
Unit cp8859_5
Unit cp895
Unit cp932
Unit cp936
Unit cp949
Unit cp950
Unit cpall
Unit Crt
Unit cthreads
Unit ctypes
Unit cwstring
Unit DateUtils
Unit Dos
Unit dxeload
Unit dynlibs
Unit emu387
Unit errors
Unit exeinfo
Unit fgl
Unit fpwidestring
Unit getopts
Unit go32
Unit gpm
Unit Graph
Unit heaptrc
Unit ipc
Unit keyboard
Unit lineinfo
Unit Linux
Unit lnfodwrf
Unit Math
Unit matrix
Unit mmx
Unit Mouse
Unit Objects
Unit objpas
Unit ports
Unit printer
Unit sharemem
Unit Sockets
Unit Strings
Unit StrUtils
Unit System
Unit sysutils
Unit Types
Unit TypInfo
Unit unicodedata
Unit unicodeducet
Unit Unix
Unit unixcp
Unit unixtype
Unit unixutil
Unit Variants
Unit video
Unit WinCRT
Unit WinDirs
Unit x86
Source position: syshelph.inc line 579
public function ClearBit(const Index: TQwordBitIndex) : QWord;