Reference for unit 'System': Variables

Variable	Description
argv	Pointer to the array of command-line arguments
DefaultFileSystemCodePage	Codepage to use for filenames
DefaultRTLFileSystemCodePage	Code page in which to return system-returned filenames
DefaultSystemCodePage	Current system codepage.
DefaultUnicodeCodePage	Code page for new unicode strings
DispCallByIDProc	Callback to perform dispatch interface procedure call by ID.
envp	Pointer to the array of environment variables
ErrOutput	Alias for StdErr
ExitCode	Exit code for the program, will be communicated to the OS on exit.
FirstDotAtFileNameStartIsExtension	Where does the extension start.
InOutRes	Result of last I/O operation.
Input	Standard input text file.
IsConsole	True for console applications, False for GUI applications.
IsLibrary	True if the current module is a library. Otherwise module is an executable
mem	Direct memory access (DOS only) in bytes
meml	Direct memory access (DOS only) in longints
memw	Direct memory access (DOS only) in words
NoErrMsg	Unused, for Delphi compatibility
Output	Standard output text file.
RandSeed	Seed for Random function.
ReturnNilIfGrowHeapFails	Describe behaviour if getmem fails.
softfloat_exception_flags	Current soft float exception flags
softfloat_exception_mask	Current soft float exception mask
softfloat_rounding_mode	Rounding mode for softfloat
StackBottom	Current stack bottom.
StackLength	Maximum stack length.
StdErr	Standard diagnostic output text file.
StdOut	Alias for Output .
ThreadID	Current Thread ID.
UTF8CompareLocale	Unused, for Delphi compatibility only
widestringmanager	Current widestring manager.
WriteErrorsToStdErr	Write errors to StdErr