UPRINTSTRING

The _UPRINTSTRING statement prints ASCII / UNICODE text strings using graphic column and row coordinate positions.

Syntax

_UPRINTSTRING (column, row), textExpression$[, maxWidth&][, utfEncoding&][, fontHandle&][, imageHandle&]

Parameters

• column and row are INTEGER or LONG starting PIXEL (graphic) column and row coordinates to set text or custom fonts.
• textExpression$ is any literal or variable string value of text to be displayed.
• maxWidth& is an optional horizontal pixel limit after which the text rendering will be clipped.
• utfEncoding& is an optional UTF encoding of textExpression$. This can be 0 for ASCII, 8 for UTF-8, 16 for UTF-16 or 32 for UTF-32.
• fontHandle& is an optional font handle.
• imageHandle& is the optional image or destination to use. Zero designates current SCREEN page.

Description

• The starting coordinate sets the top left corner of the text to be printed.
• If maxWidth& is omitted, then the entire textExpression$ is rendered.
• If utfEncoding& is omitted, then it is assumed to be 0 (ASCII).
• If fontHandle& is omitted, then the current write page font is used.
• _UPRINTWIDTH can be used to determine how wide a text print will be so that the screen width is not exceeded. Alternatively, maxWidth& can be used to clip text rending after a certain amount of pixel width.
• _ULINESPACING can be used to calculate the next font vertical position.
• Unicode byte order mark (BOM) is not processed and must be handled by user code except for UTF-16.
• UTF-16 LE is assumed if BOM is absent in the string and utfEncoding& is 16.
• Can use the current font alpha blending with a designated image background. See the _RGBA function example.
• Use the _PRINTMODE statement before printing to set how the background is rendered.
  • Use the _PRINTMODE (function) to find the current _PRINTMODE setting.
• SCREEN 0 (text only) mode is not supported. Attempting to use this in SCREEN 0 will generate an error.

Availability

• 

  none

• 

  v3.7.0

• 
• 

  yes

• 

  yes

• 

  yes

Examples

Example 1

Centers and prints a Russian text on a graphics screen.

OPTION _EXPLICIT SCREEN _NEWIMAGE(800, 600, 32) DIM fh AS LONG: fh = _LOADFONT("cyberbit.ttf", 21) IF fh <= 0 THEN PRINT "Failed to load font file!" END END IF _FONT fh RESTORE text_data DIM myString AS STRING: myString = LoadUData$ _UPRINTSTRING (_WIDTH \ 2 - _UPRINTWIDTH(myString, 8, fh) \ 2, _HEIGHT \ 2 - _UFONTHEIGHT \ 2), myString, _WIDTH, 8 END text_data: DATA 6F,D0,91,D1,8B,D1,81,D1,82,D1,80,D0,B0,D1,8F,20,D0,BA,D0,BE,D1,80,D0,B8,D1 DATA 87,D0,BD,D0,B5,D0,B2,D0,B0,D1,8F,20,D0,BB,D0,B8,D1,81,D0,B0,20,D0,BF,D0,B5 DATA D1,80,D0,B5,D0,BF,D1,80,D1,8B,D0,B3,D0,B8,D0,B2,D0,B0,D0,B5,D1,82,20,D1,87 DATA D0,B5,D1,80,D0,B5,D0,B7,20,D0,BB,D0,B5,D0,BD,D0,B8,D0,B2,D1,83,D1,8E,20,D1 DATA 81,D0,BE,D0,B1,D0,B0,D0,BA,D1,83,2E FUNCTION LoadUData$ DIM AS _UNSIGNED LONG i, s DIM d AS STRING DIM buffer AS STRING READ d s = VAL("&h" + d) buffer = SPACE$(s) FOR i = 1 TO s READ d ASC(buffer, i) = VAL("&h" + d) NEXT LoadUData = buffer END FUNCTION

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Example 2

Prints multiple lines of text using a recommended line gap.

OPTION _EXPLICIT SCREEN _NEWIMAGE(800, 600, 32) DIM fh AS LONG: fh = _LOADFONT("LHANDW.TTF", 23) IF fh <= 0 THEN PRINT "Failed to load font file!" END END IF _FONT fh CLS , _RGB32(200, 200, 200) COLOR _RGB32(0, 0, 0) _PRINTMODE _KEEPBACKGROUND DIM l AS STRING, i AS LONG FOR i = 0 TO 4 READ l _UPRINTSTRING (0, _ULINESPACING * i), l NEXT END DATA "We are not now that strength which in old days" DATA "Moved earth and heaven; that which we are,we are;" DATA "One equal temper of heroic hearts," DATA "Made weak by time and fate,but strong in will" DATA "To strive,to seek,to find,and not to yield."

See also

• Featured in our "Keyword of the Day" series (Part 1)
• Featured in our "Keyword of the Day" series (Part 2)
• _UPRINTWIDTH, _UFONTHEIGHT, _ULINESPACING, _UCHARPOS
• _NEWIMAGE, _PRINTWIDTH, _PRINTMODE
• _CONTROLCHR
• _FONT, _LOADFONT, _FONTHEIGHT, _FONTWIDTH
• _SCREENIMAGE, _SCREENPRINT
• Text Using Graphics

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