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32 lines
1.2 KiB
Plaintext
32 lines
1.2 KiB
Plaintext
The [[SYSTEM]] statement immediately closes a program and returns control to the operating system.
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{{PageSyntax}}
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:'''SYSTEM''' [return_code%]
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{{PageParameters}}
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* QB64 allows a ''code'' number to be used after SYSTEM to be read in another program module by the [[SHELL]] or [[_SHELLHIDE]] functions.
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{{PageDescription}}
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* This command should be used to close a program quickly instead of pausing with [[END]] or nothing at all.
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* A code can be added after the statement to send a value to the [[SHELL (function)]] or [[_SHELLHIDE]] function in another module.
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* SYSTEM ends the program and closes the window immediately. The last screen image may not be displayed.
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{{PageQBasic}}
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* '''QBasic BAS files can be run like compiled programs without returning to the IDE when [[SYSTEM]] is used to [[END|end]] them!'''
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* If a program BAS module is run from the IDE, stopped by Ctrl-Break or an error occurs the QB program will exit to the IDE.
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* To run a QuickBASIC program without the IDE use the following DOS command line: {{text|QB.EXE /L /RUN filename.BAS|green}}
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{{PageSeeAlso}}
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* [[SHELL (function)]]
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* [[_SHELLHIDE]] {{text|(function)}}
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* [[_EXIT (function)]], [[END]]
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{{PageNavigation}}
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