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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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6e01fc8dce
Added new _STRCMP and _STRICMP commands for quick string comparisons. Cleaned up QB64 to finish removing the QUI (quick user insert) code and folders. Altered UCASE and LCASE routines to be faster in some situations for us.
49 lines
1.6 KiB
Plaintext
49 lines
1.6 KiB
Plaintext
The '''_CONTROLCHR''' metacommand can be used to turn OFF control character attributes and allow them to be printed.
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{{PageSyntax}}
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::: '''_CONTROLCHR''' {'''OFF'''|ON}
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{{Parameters}}
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* Keyword must be used with '''OFF''' or '''ON'''(default) if previously turned OFF.
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''Usage:''
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* The [[OFF]] statement allows control characters 0 to 31 to be printed or used as normal text characters.
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* The default [[ON]] statement allows control characters to be used as control commands. Some characters will not print.
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* If the command is never used in a QB64 program, control characters may format text or not print.
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* '''Note:''' File prints may be affected also when using Carriage Return or Line Feed/Form Feed formatting!
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''Example:'' Printing the 255 [[ASCII]] characters in [[SCREEN]] 0 with 32 colors.
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{{CodeStart}} '' ''
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{{Cl|DIM}} i {{Cl|AS}} {{Cl|_UNSIGNED}} {{Cl|_BYTE}}
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{{Cl|WIDTH}} 40, 25
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{{Cl|CLS}}
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{{Cl|_CONTROLCHR}} OFF
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i = 0
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DO
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{{Cl|PRINT}} {{Cl|CHR$}}(i);
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i = i + 1
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{{Cl|IF...THEN|IF}} (i {{Cl|AND (boolean)|AND}} {{Cl|&H}}F) = 0 {{Cl|THEN}} {{Cl|PRINT}}
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{{Cl|LOOP}} {{Cl|WHILE}} i
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{{Cl|LOCATE}} 1, 20
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DO
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{{Cl|COLOR}} i {{Cl|AND (boolean)|AND}} {{Cl|&H}}F {{Cl|OR (boolean)|OR}} (i {{Cl|AND (boolean)|AND}} {{Cl|&H}}80) \ {{Cl|&H}}8, (i {{Cl|AND (boolean)|AND}} {{Cl|&H}}70) \ {{Cl|&H}}10
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{{Cl|PRINT}} {{Cl|CHR$}}(i);
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i = i + 1
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{{Cl|IF...THEN|IF}} (i {{Cl|AND (boolean)|AND}} {{Cl|&H}}F) = 0 {{Cl|THEN}} {{Cl|LOCATE}} 1 + i \ {{Cl|&H}}10, 20
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{{Cl|LOOP}} {{Cl|WHILE}} i
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{{Cl|END}} '' ''
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{{CodeEnd}}
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''See also:''
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* [[CHR$]], [[ASC]]
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* [[INKEY$]], [[_KEYHIT]]
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* [[ASCII]] {{text|(codes)}}
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{{PageNavigation}} |