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Get the amount of red, green and blue from given 32 bit pixel value.

Posted on 2004-04-08
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Last Modified: 2010-05-02
HI!

Function RGB creates a color value based on given Red, Green and Blue values.

I need a function which will do the oposite:   extract amounts of Red, Green and Blue from color value created by GetPixel and RGB functions.

Thanks!
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Question by:dbrckovi
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2 Comments
 
LVL 26

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EDDYKT earned 1000 total points
ID: 10782557
where color is RGB color

function GetRed(color)
      
On Error Resume Next
GetRed = color And &HFF
end Function

function GetGreen(color)
      
On Error Resume Next
GetGreen = ((color And &HFF00) / &H100) And &HFF
end Function

function GetBlue(color)
      
On Error Resume Next
GetBlue = ((color And &HFF0000) / &H10000) And &HFF
end Function
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LVL 11

Author Comment

by:dbrckovi
ID: 10782582
Perfect.    Thanks!
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