System

Closes all open files and ends the program

Syntax
	KeyPgDeclareDeclare KeyPgSubSub System ( KeyPgByvalByVal retval KeyPgAsAs KeyPgLongLong = 0 )

Usage
	System( [ retval ] )

Parameters
	retval
		Error code returned to system.

Description
	Closes all open files, exits the program, and returns to the operating 
	system. An optional return value, an integer, can be specified to return 
	an error code to the system. If no return value is given, a value of 0 
	is automatically returned. This is the same as KeyPgEndEnd (Statement) and is 
	here for compatibility between older BASIC dialects. It is recommended 
	to use KeyPgEndEnd (Statement) instead.

	Usage of this statement does not cleanly close scope. Local variables 
	will not have their destructors called automatically, because FreeBASIC 
	does not do stack unwinding. Only the destructors of global variables 
	will be called in this case.

	For this reason, it is discouraged to use System simply to mark the end 
	of a program; the program will come to an end automatically, and in a 
	cleaner fashion, when the last line of module-level code has executed.

Example
	Print "this text is shown"
	System
	Print "this text will never be shown"

Differences from QB
	* None

See also
	* KeyPgEndEnd (Statement)

