PRINTWIDTH
From QB64 Wiki
The _PRINTWIDTH function returns the width in pixels of the _FONT or text string that a program will print.
- pixel_width = _PRINTWIDTH(text_to_print$[, destination_handle&])
Description:
- text_to_print$ is any literal or variable STRING value.
- If the destination_handle& is omitted, the current destination image or screen page is used.
- Useful to find the width of the font print string before actually printing it.
- Can be used with variable width fonts or no font at all unlike _FONTWIDTH which requires MONOSPACE fonts only.
- _PRINTWIDTH cannot be used in SCREEN 0!
Example: SUB returns font or screen mode's text block size using _PRINTWIDTH and _FONTHEIGHT without a handle parameter.
DO INPUT "Enter Screen mode 1, 2 or 7 to 13: ", scr$ mode% = VAL(scr$) LOOP UNTIL mode% > 0 SCREEN mode% INPUT "Enter first name of TTF font to use or hit enter for text size: ", TTFont$ IF LEN(TTFont$) THEN INPUT "Enter font height: ", hi$ height& = VAL(hi$) IF height& > 0 THEN _FONT _LOADFONT("C:\Windows\Fonts\" + TTFont$ + ".ttf", height&, style$) TextSize wide&, high& 'get the font or current screen mode's text block pixel size _PRINTSTRING (20, 100), CHR$(1) + STR$(wide&) + " X" + STR$(high&) + " " + CHR$(2) END SUB TextSize (TextWidth&, TextHeight&) TextWidth& = _PRINTWIDTH("W") 'measure width of one font or text character TextHeight& = _FONTHEIGHT 'can measure normal text block heights also END SUB
See also: