Microsoft KB Archive/149184

= How to Convert a RGBCOMP Value into Component Values =

Article ID: 149184

Article Last Modified on 9/30/2003

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APPLIES TO


 * Microsoft Visual FoxPro 3.0 Standard Edition
 * Microsoft Visual FoxPro 3.0b Standard Edition

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This article was previously published under Q149184



SUMMARY
The RGBCOMP function is new to Foxtools.fll. It accepts an RGB composite value as an argument and converts it to the three component values for you. In effect, it is the counterpart to FoxPro's RGB function.



MORE INFORMATION
RGBComp returns the Red, Green, and Blue components of a composite RGB color value. The syntax is:

RGBComp( nRGBColor, @nRedVal, @nGreenVal, @nBlueVal )

Parameters:


 * nRGBColor is a composite RGB color value ranging from 0 to 16777215.
 * nRedVal, upon return, is the intensity of the red color component of nRGBColor.
 * nGreenVal, upon return, is the intensity of the green color component of nRGBColor.
 * nBlueVal, upon return, is the intensity of the blue color component of nRGBColor.

Sample Code
The following code gives an example implementation: *-- Set up to use FoxTools.FLL CLEAR SET LIBRARY TO SYS(2004) + '\FOXTOOLS'

nRedVal = 0 nBlueVal = 0 nGreenVal = 0
 * -- Declare some variables to be used in the function calls

? RGBCOMP(65537, @nRedVal, @nGreenVal, @nBlueVal) ? nRedVal, nGreenVal, nBlueVal
 * -- Display as we go.

= RGBCOMP(65537 + 44 + 256 * 4, @nRedVal, @nGreenVal, @nBlueVal) ? nRedVal, nGreenVal, nBlueVal

= RGBCOMP(65537 + 86 + 256 * 4, @nRedVal, @nGreenVal, @nBlueVal) ? nRedVal, nGreenVal, nBlueVal

SET LIBRARY TO
 * -- Reset the current active library.

Additional query words: VFoxWin

Keywords: kbcode KB149184

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