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Convert a color value to a gray scale

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When you have a 32-bit color value, you can convert it to a grey-scale - that is, you can determine how it would appear on a monochromatic display (more or less) using the following function:

Click here to copy the following block
Function GetGreyScale(ByVal lColor As Long)
  lColor = 0.33 * (lColor Mod 256) + 0.59 * ((lColor \ 256) Mod 256) + 0.11 * _
    ((lColor \ 65536) Mod 256)
  GetGreyScale = RGB(lColor, lColor, lColor)
End Function


Submitted By : Nayan Patel  (Member Since : 5/26/2004 12:23:06 PM)

Job Description : He is the moderator of this site and currently working as an independent consultant. He works with VB.net/ASP.net, SQL Server and other MS technologies. He is MCSD.net, MCDBA and MCSE. In his free time he likes to watch funny movies and doing oil painting.
View all (893) submissions by this author  (Birth Date : 7/14/1981 )


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