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: // 1) two physical monitors connected in extended mode
  // ```
  // C:\src\win32> dart example\monitor.dart
  // number of monitors: 2
  // primary monitor handle: 132205
  // number of physical monitors: 1
  // physical monitor handle: 0
  // physical monitor description: Generic PnP Monitor
  // capabilities:
  //  - Supports technology type functions
  //  - Supports brightness functions
  //  - Supports contrast functions
  // brightness: minimum(0), current(75), maximum(100)
  // ```
  //
  // 2) a single LCD monitor that does not support DDC
  // ```
  // C:\src\win32> dart example\monitor.dart
  // number of monitors: 1
  // primary monitor handle: 1312117
  // number of physical monitors: 1
  // physical monitor handle: 0
  // physical monitor description: LCD 1366x768
  // Monitor does not support DDC/CI.
  // ```
  
  import 'dart:ffi';
  
negative.code:   result = GetMonitorBrightness(physicalMonitorHandle, minimumBrightnessPtr,
        currentBrightnessPtr, maximumBrightnessPtr);
    if (result == TRUE) {
      print('Brightness: minimum(${minimumBrightnessPtr.value}), '
          'current(${currentBrightnessPtr.value}), '
          'maximum(${maximumBrightnessPtr.value})');
    }
  