Title: Bitwise examples
Last Modified: 11.15.2008
Here I will pack a color and unpack it.
red = 156 # 0x9c green = 64 # 0x40 blue = 100 # 0x64 RGB = (red<<16) + (green<<8) + blue #RGB = 10240100 #RGB = 0x9c4064 unpacked_red = (RGB & 0xff0000)>>16 unpacked_green = (RGB & 0x00ff00)>>8 unpacked_blue = (RGB & 0x0000ff)
This shows how to pack and unpack the numbers, notice that at any point I could have used hex or base 10 to represent the numbers but the hex is consistent through out.
(RGB & 65280)>>8
doesn't quite have the same meaning as 0x00ff00 then you see specifically what digits you want.