  We report the results of a CP violation analysis of the decay B+/- -->
D(pipipi0)K+/-, where D(pipipi0) indicates a neutral D meson detected in the
final state pi+pi-pi0, excluding K_S pi0. The analysis makes use of 324 million
e+e- --> BB events recorded by the BaBar experiment at the PEP-II e+e- storage
ring. By analyzing the pi+pi-pi0 Dalitz plot distribution and the B+/- -->
D(pipipi0)K+/- branching fraction and decay rate asymmetry, we calculate
parameters related to the phase gamma of the CKM unitarity triangle. We also
measure the magnitudes and phases of the components of the D0 --> pi+pi-pi0
decay amplitude.
