Difference between revisions of "MAPUNICODE (function)"

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''Example:'' Store function return values in an array for ASCII codes 0 to 255 to restore them later.
 
''Example:'' Store function return values in an array for ASCII codes 0 to 255 to restore them later.
 
{{CodeStart}}
 
{{CodeStart}}
{{Cl|DIM}} Array&(255)
+
{{Cl|DIM}} Unicode&(255)
 
{{Cl|SCREEN (statement)|SCREEN}} 0
 
{{Cl|SCREEN (statement)|SCREEN}} 0
 
{{Cl|_FONT}} {{Cl|_LOADFONT}}("C:\Windows\Fonts\Cour.ttf", 20, "MONOSPACE") 'select monospace font
 
{{Cl|_FONT}} {{Cl|_LOADFONT}}("C:\Windows\Fonts\Cour.ttf", 20, "MONOSPACE") 'select monospace font
  
{{Cl|FOR...NEXT|FOR}} code = 0 {{Cl|TO}} 255
+
{{Cl|FOR...NEXT|FOR}} ascii = 0 {{Cl|TO}} 255
Array&(code) = {{Cl|_MAPUNICODE (function)|_MAPUNICODE}}(code)  'read Unicode values
+
Unicode&(ascii) = {{Cl|_MAPUNICODE (function)|_MAPUNICODE}}(ascii)  'read Unicode values
{{Cl|PRINT}} Array&(code);                  'display values in demo
+
{{Cl|PRINT}} Unicode&(ascii);                  'display values in demo
 
{{Cl|NEXT}}
 
{{Cl|NEXT}}
 
  'rest of program  
 
  'rest of program  

Revision as of 04:01, 24 October 2010

The _MAPUNICODE function returns the Unicode(UTF32) code point value of a mapped ASCII character code.


Syntax: UTFvalue& = _MAPUNICODE(Ascii_code%)


  • The UTF32 values have 4 byte encoding so the return variable should be LONG.
  • The Ascii_code can be any INTEGER value from 0 to 255.
  • Returns can be used to verify or catalog the present Unicode mapping.
  • The function will return Unicode values for the control characters, CHR$(127) and extended characters without mapping them first.


Example: Store function return values in an array for ASCII codes 0 to 255 to restore them later.

DIM Unicode&(255) SCREEN 0 _FONT _LOADFONT("C:\Windows\Fonts\Cour.ttf", 20, "MONOSPACE") 'select monospace font FOR ascii = 0 TO 255 Unicode&(ascii) = _MAPUNICODE(ascii) 'read Unicode values PRINT Unicode&(ascii); 'display values in demo NEXT 'rest of program END


See also:



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