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54 lines
2.3 KiB
Plaintext
54 lines
2.3 KiB
Plaintext
{{DISPLAYTITLE:_PRINTWIDTH}}{{DISPLAYTITLE:}}
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The [[_PRINTWIDTH]] function returns the width in pixels of the text [[STRING|string]] specified.
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{{PageSyntax}}
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: {{Parameter|pixelWidth%}} = [[_PRINTWIDTH]]({{Parameter|textToPrint$}}[, {{Parameter|destinationHandle&}}])
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{{PageDescription}}
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* {{Parameter|textToPrint$}} is any literal or variable [[STRING]] value.
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* If the {{Parameter|destinationHandle&}} is omitted, the current destination image or screen page is used.
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* Useful to find the width of the font print [[STRING|string]] before actually printing it.
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* Can be used with variable-width fonts or built-in fonts, unlike [[_FONTWIDTH]] which requires a MONOSPACE font handle.
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* In SCREEN 0, _PRINTWIDTH returns the character length of a text string, exactly as [[LEN]]({{Parameter|textToPrint$}}) ('''version 1.000 and up''').
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{{PageExamples}}
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''Example:'' SUB returns font or screen mode's text block size using _PRINTWIDTH and [[_FONTHEIGHT]] without a handle parameter.
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{{CodeStart}} '' ''
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{{Cl|DO}}
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{{Cl|INPUT}} "Enter Screen mode 1, 2 or 7 to 13: ", scr$
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mode% = {{Cl|VAL}}(scr$)
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{{Cl|LOOP}} {{Cl|UNTIL}} mode% > 0
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{{Cl|SCREEN (statement)|SCREEN}} mode%
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{{Cl|INPUT}} "Enter first name of TTF font to use or hit enter for text size: ", TTFont$
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{{Cl|IF}} {{Cl|LEN}}(TTFont$) {{Cl|THEN}} {{Cl|INPUT (file mode)|INPUT}} "Enter font height: ", hi$
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height& = {{Cl|VAL}}(hi$)
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{{Cl|IF}} height& > 0 {{Cl|THEN}} {{Cl|_FONT}} {{Cl|_LOADFONT}}("C:\Windows\Fonts\" + TTFont$ + ".ttf", height&, style$)
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TextSize wide&, high& 'get the font or current screen mode's text block pixel size
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{{Cl|_PRINTSTRING}} (20, 100), {{Cl|CHR$}}(1) + {{Cl|STR$}}(wide&) + " X" + {{Cl|STR$}}(high&) + " " + {{Cl|CHR$}}(2)
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{{Cl|END}}
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{{Cl|SUB}} TextSize (TextWidth&, TextHeight&)
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TextWidth& = {{Cl|_PRINTWIDTH}}("W") 'measure width of one font or text character
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TextHeight& = {{Cl|_FONTHEIGHT}} 'can measure normal text block heights also
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{{Cl|END SUB}} '' ''
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{{CodeEnd}}
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{{small|Code by Ted Weissgerber}}
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<center>'''Note:''' The SUB procedure does not need the font handle for font sizes after [[_FONT]] enables one.</center>
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{{PageSeeAlso}}
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* [[_FONTWIDTH]], [[_FONTHEIGHT]]
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* [[_NEWIMAGE]], [[_LOADFONT]]
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* [[_PRINTSTRING]], [[_FONT]]
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* [[Text Using Graphics]]
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{{PageNavigation}}
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