pyrobot.py 文件源码

def get_display_monitors(self):
    '''
    Enumerates and returns a list of virtual screen
    coordinates for the attached display devices

    output = [
      (left, top, right, bottom), # Monitor 1
      (left, top, right, bottom)  # Monitor 2
      # etc...
    ]

    '''

    display_coordinates = []
    def _monitorEnumProc(hMonitor, hdcMonitor, lprcMonitor, dwData):
      # print('call result:', hMonitor, hdcMonitor, lprcMonitor, dwData)
      # print('DC:', user32.GetWindowDC(hMonitor))

      coordinates = (
        lprcMonitor.contents.left,
        lprcMonitor.contents.top,
        lprcMonitor.contents.right,
        lprcMonitor.contents.bottom
      )
      display_coordinates.append(coordinates)
      return True

    # Callback Factory
    MonitorEnumProc = WINFUNCTYPE(
      ctypes.c_bool,
      ctypes.wintypes.HMONITOR,
      ctypes.wintypes.HDC,
      ctypes.POINTER(RECT),
      ctypes.wintypes.LPARAM
    )

    # Make the callback function
    enum_callback = MonitorEnumProc(_monitorEnumProc)

    # Enumerate the windows
    user32.EnumDisplayMonitors(
      None,
      None,
      enum_callback,
      0
    )
    return display_coordinates