> IF MOD(nR+nG+nB,2)=1 && Pixel Sum is Odd, convert to White > SYS(2600, nOffset+nPos, 3, 0hFFFFFF) > ELSE && Pixel Sum is Even, convert to Black > SYS(2600, nOffset+nPos, 3, 0x000000) > ENDIF >You are close, just use 0h000000 (varbinary) instead of 0x000000 (integer)