Difference between revisions of "RIGHT$"

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{{Cl|PRINT}} Last$ '' ''
{{Cl|PRINT}} Last$ '' ''
{{CodeEnd}}
{{CodeEnd}}
{{OutputStart}}
{{OutputStart}}Williams {{OutputEnd}}
Williams
{{OutputEnd}}




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{{Cl|SUB}} Color32 (R, G, B)
{{Cl|SUB}} Color32 (R, G, B)
R = R {{Cl|AND (boolean)|AND}} {{Cl|&H}}FF: G = G {{Cl|AND (boolean)|AND}} {{Cl|&H}}FF: B = B {{Cl|AND (boolean)|AND}} {{Cl|&H}}FF '    limit values to 0 to 255
R = R {{Cl|AND (boolean)|AND}} {{Cl|&H}}FF: G = G {{Cl|AND (boolean)|AND}} {{Cl|&H}}FF: B = B {{Cl|AND (boolean)|AND}} {{Cl|&H}}FF '    limit values to 0 to 255
{{Cl|COLOR}} {{Cl|VAL}}("{{Cl|&H}}FF" + {{Cl|RIGHT$}}("0" + {{Cl|HEX$}}(R), 2) + {{Cl|RIGHT$}}("0" + {{Cl|HEX$}}(G), 2) + {{Cl|RIGHT$}}("0" + {{Cl|HEX$}}(B), 2))
hexadecimal$ = "{{Cl|&H}}FF" + {{Cl|RIGHT$}}("0" + {{Cl|HEX$}}(R), 2) + {{Cl|RIGHT$}}("0" + {{Cl|HEX$}}(G), 2) + {{Cl|RIGHT$}}("0" + {{Cl|HEX$}}(B), 2)
{{Cl|PRINT}} hexadecimal$
{{Cl|COLOR}} {{Cl|VAL}}(hexadecimal$)
{{Cl|END SUB}} '' ''
{{Cl|END SUB}} '' ''
{{CodeEnd}}
{{CodeEnd}}
{{OutputStart}}'''{{text|&HFFFF0080|white}}'''
'''{{text|Colored text|magenta}}'''{{OutputEnd}}
: ''Note:'' When a single hexadecimal digit is returned the resulting value will need the leading zero added. Otherwise the hexa- decimal value created will have a byte missing from the value. EX: Color &HFF000000 is valid while &HFF000 is not.
: ''Note:'' When a single hexadecimal digit is returned the resulting value will need the leading zero added. Otherwise the hexa- decimal value created will have a byte missing from the value. EX: Color &HFF000000 is valid while &HFF000 is not.



Revision as of 00:43, 26 July 2012

The RIGHT$ function returns a set number of characters in a STRING variable starting from the end and counting backwards.


Syntax

RIGHT$(stringvalue$, numberofcharacters%)


  • The string value can be any string of ASCII characters as a string variable.
  • If the number of characters exceeds the string length(LEN) the entire string is returned.
  • Number of characters cannot be a negative value.
  • RIGHT$ returns always start at the last character of the string, even if a space. RTRIM$ can remove ending spaces.


Example 1: Getting the right portion of a string value such as a person's last name.

name$ = "Tom Williams" Last$ = RIGHT$(name$, LEN(name$) - INSTR(name$, " ")) 'subtract space position from string length PRINT Last$

Williams


Example 2: Adding the leading zero in single digit HEX$ values using RIGHT to take the right two hexadecimal string digits.

SCREEN _NEWIMAGE(640, 480, 32) '32 bit screen modes ONLY! red = 255 green = 0 blue = 128 Color32 red, green, blue PRINT "Colored text" SUB Color32 (R, G, B) R = R AND &HFF: G = G AND &HFF: B = B AND &HFF ' limit values to 0 to 255 hexadecimal$ = "&HFF" + RIGHT$("0" + HEX$(R), 2) + RIGHT$("0" + HEX$(G), 2) + RIGHT$("0" + HEX$(B), 2) PRINT hexadecimal$ COLOR VAL(hexadecimal$) END SUB

&HFFFF0080 Colored text

Note: When a single hexadecimal digit is returned the resulting value will need the leading zero added. Otherwise the hexa- decimal value created will have a byte missing from the value. EX: Color &HFF000000 is valid while &HFF000 is not.


See also:



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