WIDTH: Difference between revisions

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;*For CONSOLE (Windows Console Only):'''WIDTH''' [{{Parameter|columns%}}] [,{{Parameter|rows%}}] [,{{Parameter|buffer_columns%}}] [,{{Parameter|buffer_rows%}}]
;*For CONSOLE (Windows Console Only):'''WIDTH''' [{{Parameter|columns%}}] [,{{Parameter|rows%}}] [,{{Parameter|buffer_columns%}}] [,{{Parameter|buffer_rows%}}]


;*For File:'''WIDTH''' {{Parameter|file_number <nowiki>|</nowiki> device}}}, {{Parameter|columnwidth%}}
;*For Files:'''WIDTH''' {{Parameter|file_number <nowiki>|</nowiki> device}}, {{Parameter|columnwidth%}}




{{PageParameters}}
{{PageParameters}}
* When parameters are not specified, columns defaults to 80 with 25 (30 in [[SCREEN]] 11 or 12) rows.  
* When parameters are not specified, columns defaults to 80 with 25 (30 in [[SCREEN]] 11 or 12) rows.




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* '''WIDTH''' should be used after a program [[SCREEN]] statement. It does not affect screen graphics or graphic coordinates.
* '''WIDTH''' should be used after a program [[SCREEN]] statement. It does not affect screen graphics or graphic coordinates.
* Affects SCREEN 0 Window size and alters the text block size of each screen mode listed in QBasic:
* Affects SCREEN 0 Window size and alters the text block size of each screen mode listed in QBasic:
:* SCREEN 0 can use 80 or 40 columns and 25, 43 or 50 rows. Default is '''WIDTH''' 80, 25.  
:* SCREEN 0 can use 80 or 40 columns and 25, 43 or 50 rows. Default is '''WIDTH''' 80, 25.
:* SCREEN 9 can use 80 columns and 25 or 43(not supported on many monitors) rows. Default '''WIDTH''' 80, 25 fullscreen.  
:* SCREEN 9 can use 80 columns and 25 or 43(not supported on many monitors) rows. Default '''WIDTH''' 80, 25 fullscreen.
:* SCREEN 10 can use 80 columns and 25 or 43 rows. Default is '''WIDTH''' 80, 25 fullscreen.
:* SCREEN 10 can use 80 columns and 25 or 43 rows. Default is '''WIDTH''' 80, 25 fullscreen.
:* SCREEN 11 and 12 can use 80 columns and 30 or 60 rows. Default is '''WIDTH''' 80, 30 fullscreen.
:* SCREEN 11 and 12 can use 80 columns and 30 or 60 rows. Default is '''WIDTH''' 80, 30 fullscreen.
* '''QB64''' can alter all [[SCREEN]] mode widths and heights which may also affect text or [[_FONT]] block sizes.
* '''QB64''' can alter all [[SCREEN]] mode widths and heights which may also affect text or [[_FONT]] block sizes.
* If a [[$CONSOLE]] window is active and you set [[_DEST]] [[_CONSOLE]], '''WIDTH''' will affect the console output window size (Windows only), with the last two optional parameters setting the buffer size for the console.  (For example, you can set a console to be 80 characters x 25 lines for the display, with a buffer size of 300 characters and 100 lines, which allows you to display that much information and navigate the visible display with the scroll bars.)  
* If a [[$CONSOLE]] window is active and you set [[_DEST]] [[_CONSOLE]], '''WIDTH''' will affect the console output window size (Windows only), with the last two optional parameters setting the buffer size for the console.  (For example, you can set a console to be 80 characters x 25 lines for the display, with a buffer size of 300 characters and 100 lines, which allows you to display that much information and navigate the visible display with the scroll bars.)
;*Note:'''WIDTH''' changes may change screen color settings in QBasic. Use [[PALETTE]] to reset to default colors.
;*Note:'''WIDTH''' changes may change screen color settings in QBasic. Use [[PALETTE]] to reset to default colors.
:* '''WIDTH LPRINT''' is not supported in QB64.
:* '''WIDTH LPRINT''' is not supported in QB64.
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{{PageExamples}}
{{PageExamples}}
;*Example 1:Showing the use of the buffer parameters for [[$CONSOLE]] usage.
:*The program creates more output than fits to the display, but the buffer preserves the output and you can scroll back and forth.
{{CodeStart}}
{{CodeStart}}
{{Cl|$CONSOLE|$CONSOLE:ONLY}}
{{Cl|$CONSOLE|$CONSOLE:ONLY}}
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{{PageSeeAlso}}
{{PageSeeAlso}}
* [https://qb64phoenix.com/forum/showthread.php?tid=1276 Featured in our "Keyword of the Day" series]
* [[SCREEN]], [[COLOR]], [[OUT]]
* [[SCREEN]], [[COLOR]], [[OUT]]
* [[_PRINTWIDTH]] {{text|(function)}}
* [[_PRINTWIDTH]]
* [[_WIDTH (function)]], [[_HEIGHT]] {{text|(function)}}
* [[_WIDTH (function)]], [[_HEIGHT]]
* [[_FONT]], [[_FONTWIDTH]], [[_FONTHEIGHT]]
* [[_FONT]], [[_FONTWIDTH]], [[_FONTHEIGHT]]




{{PageNavigation}}
{{PageNavigation}}

Latest revision as of 18:01, 25 May 2024

The WIDTH statement changes the text dimensions of certain SCREEN modes or devices.


Syntax

For SCREEN
  • WIDTH [columns%] [,rows%]
For CONSOLE (Windows Console Only)
  • WIDTH [columns%] [,rows%] [,buffer_columns%] [,buffer_rows%]
For Files
  • WIDTH file_number | device, columnwidth%


Parameters

  • When parameters are not specified, columns defaults to 80 with 25 (30 in SCREEN 11 or 12) rows.


Description

  • WIDTH should be used after a program SCREEN statement. It does not affect screen graphics or graphic coordinates.
  • Affects SCREEN 0 Window size and alters the text block size of each screen mode listed in QBasic:
  • SCREEN 0 can use 80 or 40 columns and 25, 43 or 50 rows. Default is WIDTH 80, 25.
  • SCREEN 9 can use 80 columns and 25 or 43(not supported on many monitors) rows. Default WIDTH 80, 25 fullscreen.
  • SCREEN 10 can use 80 columns and 25 or 43 rows. Default is WIDTH 80, 25 fullscreen.
  • SCREEN 11 and 12 can use 80 columns and 30 or 60 rows. Default is WIDTH 80, 30 fullscreen.
  • QB64 can alter all SCREEN mode widths and heights which may also affect text or _FONT block sizes.
  • If a $CONSOLE window is active and you set _DEST _CONSOLE, WIDTH will affect the console output window size (Windows only), with the last two optional parameters setting the buffer size for the console. (For example, you can set a console to be 80 characters x 25 lines for the display, with a buffer size of 300 characters and 100 lines, which allows you to display that much information and navigate the visible display with the scroll bars.)
Note
  • WIDTH changes may change screen color settings in QBasic. Use PALETTE to reset to default colors.
  • WIDTH LPRINT is not supported in QB64.


Examples

Example 1
  • Showing the use of the buffer parameters for $CONSOLE usage.
  • The program creates more output than fits to the display, but the buffer preserves the output and you can scroll back and forth.
$CONSOLE:ONLY
WIDTH 80, 25, 300, 100
CLS
FOR i = 1 TO 97
    PRINT i
NEXT
PRINT STRING$(100, "0") + STRING$(100, "1") + STRING$(100, "2") 'print the 100's placeholders
FOR j = 1 TO 3
    FOR i = 0 TO 9
        PRINT STRING$(10, _TRIM$(STR$(i))); 'print the 10's placeholders
    NEXT
NEXT

FOR j = 1 TO 30
    FOR i = 0 TO 9
        PRINT _TRIM$(STR$(i)); 'print the 1's placeholders.
    NEXT
NEXT

SLEEP


See also



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