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38 lines
1.3 KiB
Plaintext
38 lines
1.3 KiB
Plaintext
The [[$SCREENHIDE]] [[Metacommand|metacommand]] can be used to hide the main program window throughout a program.
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{{PageSyntax}}
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: [[$SCREENHIDE]]
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* $SCREENHIDE may be used at the start of a program to hide the main program window when using a [[$CONSOLE|console]] window.
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* The [[_SCREENHIDE]] statement must be used before [[_SCREENSHOW]] can be used in sections of a program.
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* '''QB64 [[Metacommand|metacommand]]s cannot be commented out with [[apostrophe]] or [[REM]]'''.
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{{PageExamples}}
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''Example:'' Hiding a program when displaying a message box in Windows.
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{{CodeStart}} '' ''
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{{Cl|$SCREENHIDE}}
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{{Cl|DECLARE DYNAMIC LIBRARY}} "user32"
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{{Cl|FUNCTION}} MessageBoxA& ({{Cl|BYVAL}} hWnd%&, {{Cl|BYVAL}} lpText%&, {{Cl|BYVAL}} lpCaption%&, {{Cl|BYVAL}} uType~&)
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{{Cl|DECLARE LIBRARY|END DECLARE}}
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{{Cl|DECLARE DYNAMIC LIBRARY}} "kernel32"
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{{Cl|SUB}} ExitProcess ({{Cl|BYVAL}} uExitCode~&)
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{{Cl|DECLARE LIBRARY|END DECLARE}}
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{{Cl|DIM}} s0 {{Cl|AS}} {{Cl|STRING}}
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{{Cl|DIM}} s1 {{Cl|AS}} {{Cl|STRING}}
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s0 = "Text" + {{Cl|CHR$}}(0)
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s1 = "Caption" + {{Cl|CHR$}}(0)
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ExitProcess MessageBoxA(0, {{Cl|_OFFSET (function)|_OFFSET}}(s0), {{Cl|_OFFSET (function)|_OFFSET}}(s1), 0)
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{{CodeEnd}}{{small|Code by Michael Calkins}}
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{{PageSeeAlso}}
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* [[$CONSOLE]], [[$SCREENSHOW]]
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* [[_SCREENHIDE]], [[_SCREENSHOW]]
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* [[_CONSOLE]]
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{{PageNavigation}}
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