The following function converts a decimal number representing a color stored in the way that Microsoft windows stores colors (low byte is red), and converts it to a hex string which is needed for web applications, namely "#RRGGBB".
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function decimalColorToHTMLcolor(number) {
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//converts to a integer
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var intnumber = number - 0;
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// isolate the colors - really not necessary
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var red, green, blue;
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// needed since toString does not zero fill on left
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var template = "#000000";
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// in the MS Windows world RGB colors
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// are 0xBBGGRR because of the way Intel chips store bytes
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red = (intnumber&0x0000ff) << 16;
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green = intnumber&0x00ff00;
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blue = (intnumber&0xff0000) >>> 16;
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// mask out each color and reverse the order
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intnumber = red|green|blue;
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// toString converts a number to a hexstring
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var HTMLcolor = intnumber.toString(16);
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//template adds # for standard HTML #RRGGBB
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HTMLcolor = template.substring(0,7 - HTMLcolor.length) + HTMLcolor;
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return HTMLcolor;
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}
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