Flash / Flex / ActionScript/Graphics/Color

Produces a number that is the effective result of inserting the hex value AA into an existing color value

   <source lang="java">

package{

 import flash.display.Sprite;
 
 public class Main extends Sprite{
   public function Main(){
       var colorValue:uint   = 0xFFFFCC99;  // A sample color
       colorValue &= 0xFF00FFFF;
       colorValue |= (0xAA<<16);
       trace(colorValue.toString(16));  // Displays: ffaacc99
   }
 }

}

       </source>
   
  

To retrieve the value of a single channel from a 32-bit color value, we can use the right shift and bitwise AND operators together

   <source lang="java">

package{

 import flash.display.Sprite;
 
 public class Main extends Sprite{
   public function Main(){
       var colorValue:uint   = 0xFFFFCC99;  // A sample color
       var alpha:uint = (colorValue >> 24) & 0xFF;  // Isolate the Alpha channel
       var red:uint   = (colorValue >> 16) & 0xFF;  // Isolate the Red channel
       var green:uint = (colorValue >> 8) & 0xFF;   // Isolate the Green channel
       var blue:uint  = colorValue & 0xFF;          // Isolate the Blue channel
       
       trace(alpha, red, green, blue);  // Displays: 255 255 204 153
   
   }
 }

}

       </source>