anchor.diff:    result = GetMonitorCapabilities(physicalMonitorHandle, monitorCapabilitiesPtr,
         monitorColorTemperaturesPtr);
     if (result == TRUE) {
  -    print('capabilities: ');
  +    print('Capabilities: ');
       printMonitorCapabilities(monitorCapabilitiesPtr.value);
     } else {
       print('Monitor does not support DDC/CI.');
  
positive.code:     throw WindowsException(result);
    }
  
    print('number of monitors: ${monitors.length}');
  
    final primaryMonitorHandle = findPrimaryMonitor(monitors);
    print('primary monitor handle: $primaryMonitorHandle');
  
    final physicalMonitorCountPtr = allocate<Uint32>();
    result = GetNumberOfPhysicalMonitorsFromHMONITOR(
        primaryMonitorHandle, physicalMonitorCountPtr);
    if (result == FALSE) {
      throw WindowsException(result);
    }
    print('number of physical monitors: ${physicalMonitorCountPtr.value}');
  
    // We need to allocate space for a PHYSICAL_MONITOR struct for each physical
    // monitor. Each struct comprises a HANDLE and a 128-character UTF-16 array.
  
negative.code:   result = GetMonitorBrightness(physicalMonitorHandle, minimumBrightnessPtr,
        currentBrightnessPtr, maximumBrightnessPtr);
    if (result == TRUE) {
      print('Brightness: minimum(${minimumBrightnessPtr.value}), '
          'current(${currentBrightnessPtr.value}), '
          'maximum(${maximumBrightnessPtr.value})');
    }
  