Colour Picker > Convert result into hex

jezjones29 · **Posted:** January 21st, 2010, 11:58 am

Does anyone know how I can convert the returned value from the colour picker dll into another format such as hex?

There is a good example of this dll in the sample publications > external dll demonstration

Lar_123 · **Posted:** January 21st, 2010, 2:10 pm

Jez,

Simply do a search in this forum for these two terms: RGB Hex

There's a sample .imp already posted etc, etc.

mackavi · **Posted:** January 21st, 2010, 3:11 pm

Might be wrong, but I don't think it's that simple.

The DLL doesn't return the RGB value. It returns the single colour value that Opus is able to create using the RGB function, but I don't think there is a inverse function.

I'm not even sure that it would be possible as the value returned by the DLL appears to a linear representation of the True Colour scheme.

However, the DLL might have other undocumented functions or DW might tweak it to return the hex value. The other alternative is to find a third party DLL.

I might be way off on this one though...

Mack

Lar_123 · **Posted:** January 22nd, 2010, 12:57 am

Mack's probably right. And I overlooked the 'picker DLL' part of the question.

Check this out (for ARGB): http://msdn.microsoft.com/en-us/magazine/cc164113.aspx

jezjones29 · **Posted:** January 22nd, 2010, 12:28 pm

Is the colour picker .dll (TestCallDLL.dll) made by DW? If so, it would be good if it could return a value that we could work with.

Dave Emberton · **Posted:** January 22nd, 2010, 12:39 pm

The value returned is the RGB value as number, you need a bit of script to turn the number into a hex string, which I'm sure somebody had done somewhere.

Note that it might come out as BGR, and you'll have to swap B and R.

jezjones29 · **Posted:** January 22nd, 2010, 1:04 pm

Ok, done it

Code:

function decColor2hex(color) {
   colArr = color.toString(16).toUpperCase().split('');
   numChars = colArr.length
   for (a = 0; a < (6 - numChars); a++) {
      colArr.unshift("0")
      }
   return ("#"+colArr.join(''));
}
function Array_unshift() {
  var A_u = 0
  for (A_u = this.length-1; A_u >= 0; A_u--) {
   this[A_u + arguments.length] = this[A_u]
   }
  for (A_u = 0; A_u < arguments.length; A_u++) {
   this[A_u] = arguments[A_u]
   }
  return this.length
  }
if (typeof Array.prototype.unshift == "undefined") {
  Array.prototype.unshift = Array_unshift
  }

jezjones29 · **Posted:** January 22nd, 2010, 1:23 pm

Good point Dave!

Update:

Code:

function decColor2hex(color) {
   colArr = color.toString(16).toUpperCase().split('');
   numChars = colArr.length
   for (a = 0; a < (6 - numChars); a++) {
      colArr.unshift("0")
      }
   var a = colArr[0]
   var b = colArr[1]
   var c = colArr[2]
   var d = colArr[3]
   var e = colArr[4]
   var f = colArr[5]
   return ("#"+e+f+c+d+a+b);
}

mackavi · **Posted:** January 22nd, 2010, 3:02 pm

Doh,

I actually converted to hex and got some value that didn't correspond.

Ockham need not apply :-)

Mack

Stephen · **Posted:** April 29th, 2014, 1:16 pm

Hi,

Was able to find a solution, outside of Opus, using the accompanying C# utility instead (can convert the Access code to hex). Opus passes the picked color, using the Access code, to the utility, which can convert it, to set a border color.

Digital Workshop

Colour Picker > Convert result into hex

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