PPT Slide

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// Callback from LightSwitch.

void LightControl::lightSwitchChange (bool state, LightSwitch* )

{

// Look through the light list for light in the opposite condition

// as the state proposed.

for (int i=0; i

if ( board->in( lightList[i] ) != state )

break;

board->out (lightList[i], state); // Turn the light off or on.

}