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cf_convertHexRGB ( HexNumber ; Separator )

Convert hexadecimal RGB values

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Klemens Müller - Show more from this author Klemens Müller http://www.klemenso.de

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/*cf_convertHexRGB( HexNumber; Separator ) by Klemens Müller, www.klemenso.de, 05.07.2006 This is a simple example to convert hexadecimal RGB values. The function returns the decimal value for each byte of a three bytes long hexadecimal value. Please, let all of us know, if you discover an error or you create a shorter version of this function. 1. Remove unnecessary characters in the input. 2. Range of possible characters in the hexadecimal number system. The decimal value of each character will be represented by the term "position - 1". 3. Each returned value will be separated with in this parameter submitted string. */ Let( [ hex = Substitute( HexNumber ; [" " ; ""];["#";""] ) ; /*1*/ range = "0123456789ABCDEF" ; /*2*/ s = Separator ; /*3*/ r1 = Middle( hex ; 1 ; 1 ) ; r2 = Middle( hex ; 2 ; 1 ) ; g1 = Middle( hex ; 3 ; 1 ) ; g2 = Middle( hex ; 4 ; 1 ) ; b1 = Middle( hex ; 5 ; 1 ) ; b2 = Middle( hex ; 6 ; 1 ) ; r1 = Position( range ; r1 ; 1 ; 1 ) - 1 ; r2 = Position( range ; r2 ; 1 ; 1 ) - 1 ; g1 = Position( range ; g1 ; 1 ; 1 ) - 1 ; g2 = Position( range ; g2 ; 1 ; 1 ) - 1 ; b1 = Position( range ; b1 ; 1 ; 1 ) - 1 ; b2 = Position( range ; b2 ; 1 ; 1 ) - 1 ; red = r1 * 16 + r2 ; green = g1 * 16 + g2 ; blue = b1 * 16 + b2 ; out = red & s & green & s & blue ] ; out ) Click to copy

cf_convertHexRGB( HexNumber; Separator )
by Klemens Müller, www.klemenso.de, 05.07.2006
This is a simple example to convert hexadecimal RGB values. The function returns the decimal value for each byte of a three bytes long hexadecimal value. Please, let all of us know, if you discover an error or you create a shorter version of this function.

1. Remove unnecessary characters in the input.
2. Range of possible characters in the hexadecimal number system. The decimal value of each character will be represented by the term "position - 1".
3. Each returned value will be separated with in this parameter submitted string.

 

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