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37 lines
1.1 KiB
Markdown
37 lines
1.1 KiB
Markdown
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The [$SCREENHIDE]($SCREENHIDE) [Metacommand](Metacommand) can be used to hide the main program window throughout a program.
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## Syntax
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> [$SCREENHIDE]($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]($CONSOLE) window.
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* The [_SCREENHIDE](_SCREENHIDE) statement must be used before [_SCREENSHOW](_SCREENSHOW) can be used in sections of a program.
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* **QB64 [Metacommand](Metacommand)s cannot be commented out with [apostrophe](apostrophe) or [REM](REM)**.
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## Example(s)
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Hiding a program when displaying a message box in Windows.
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```vb
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$SCREENHIDE
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DECLARE DYNAMIC LIBRARY "user32"
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FUNCTION MessageBoxA& (BYVAL hWnd%&, BYVAL lpText%&, BYVAL lpCaption%&, BYVAL uType~&)
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END DECLARE
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DECLARE DYNAMIC LIBRARY "kernel32"
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SUB ExitProcess (BYVAL uExitCode~&)
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END DECLARE
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DIM s0 AS STRING
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DIM s1 AS STRING
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s0 = "Text" + CHR$(0)
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s1 = "Caption" + CHR$(0)
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ExitProcess MessageBoxA(0, _OFFSET(s0), _OFFSET(s1), 0)
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```
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## See Also
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* [$CONSOLE]($CONSOLE), [$SCREENSHOW]($SCREENSHOW)
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* [_SCREENHIDE](_SCREENHIDE), [_SCREENSHOW](_SCREENSHOW)
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* [_CONSOLE](_CONSOLE)
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