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dfDacBlue()
Reads the Blue component from the DAC register
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Syntax:

     dfDacBlue( <nReg> ) --> nDac

Parameters:

     <nReg>     Register to be read. This can be any number between 0 and
     255, i.e., the legal values for the color palette

Returns:

     <nDac> Blue compoent of the DAC register.

Description:

     Reads the Blue component from the DAC register

Example:

     ? dfDacBlue( dfPalette(0) ) // read blue component
                                 // of palette 0

See also:

     dfDacGreen(), dfDacRed(), dfPalette()