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dfDacSave()
Fills a buffer with DAC colors
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Syntax:

     dfDacSave() --> cBuf

Parameters:

     NONE

Returns:

     <cBuf>     768 bytes buffers in which the contents of the 256 DAC
     registers are stored. For each register, 3 bytes are used to store the
     values for the RGB components.

Description:

     Saves the contesnts of the 256 DAC registers in a buffer

Example:

     cBuf := dfDacSave() // Saves the DAC registers
     // ...
     dfDacRest( cBuf )   // Restores the DAC registers

See also:

     dfDacRest(), dfDacSet()