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Python script for adjusting the settings of my monitor, by using DDC/CI
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| #!/usr/bin/env python3 | |
| """ | |
| Show and adjust display parameters on a Dell U2713HM monitor | |
| Requirements: | |
| - mentioned monitor (27' should also work) with DDC/CI setting on | |
| - Windows Vista+ (dxva2.dll) | |
| - Python 3 | |
| Copyright (C) 2015 Diego Fernández Gosende <dfgosende@gmail.com> | |
| Copyright (C) 2016 https://gist.github.com/Canule | |
| Copyright (C) 2016 https://github.com/mchubby for Dell monitor | |
| This program is free software: you can redistribute it and/or modify | |
| it under the terms of the GNU General Public License as published by | |
| the Free Software Foundation, either version 3 of the License, or | |
| (at your option) any later version. | |
| This program is distributed in the hope that it will be useful, | |
| but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| GNU General Public License for more details. | |
| You should have received a copy of the GNU General Public License along | |
| with this program. If not, see <http://www.gnu.org/licenses/gpl-3.0.html>. | |
| """ | |
| version = '0.1.0' | |
| import ctypes | |
| import ctypes.wintypes as wintypes | |
| """Capabilities string | |
| prot(monitor) | |
| type(lcd) | |
| model(U2713HM) | |
| cmds(01 02 03 07 0C E3 F3) | |
| vcp(02 04 05 06 08 10 12 14(01 04 05 06 08 09 0B 0C) 16 18 1A 52 | |
| 60(01 03 04 0F) AC AE B2 B6 C6 C8 C9 D6(01 04 05) DC(00 02 03 05 ) | |
| F0(00 01) DF FD E0 E1 E2(00 01 02 04 06 0B 0C 0D 0F 10 11 13 14) F1 F2) | |
| mccs_ver(2.1) | |
| mswhql(1)) | |
| """ | |
| # Reference: VESA Monitor Control Command Set (MCCS) | |
| # Standard PDF available after free registration | |
| # at: http://www.vesa.org/vesa-standards/free-standards/ | |
| vcp_codes = { | |
| # ignore for scripting | |
| 'New Control Value': 0x02, | |
| # pass a non-zero value | |
| 'Restore Factory Defaults': 0x04, | |
| # pass a non-zero value | |
| 'Restore Factory Luminance/ Contrast Defaults': 0x05, | |
| # pass a non-zero value | |
| 'Restore Factory Geometry Defaults': 0x06, | |
| # pass a non-zero value, resets also luminance | |
| 'Restore Factory Color Defaults': 0x08, | |
| # 0-100, called 'brightness' on the OSD | |
| 'Luminance': 0x10, | |
| # 0-100 | |
| 'Contrast': 0x12, | |
| # 0x01: sRGB | |
| # 0x04: 5000k | |
| # 0x05: 6500k | |
| # 0x06: 7500k | |
| # 0x08: 9300k | |
| # 0x09: 10000k | |
| # 0x0B: 5700k | |
| # 0x0C: user (Custom Color) | |
| 'Select Color Preset': 0x14, | |
| # 0-100, it also changes the preset to 'user' | |
| 'Video Gain (Drive): Red': 0x16, | |
| # 0-100, it also changes the preset to 'user' | |
| 'Video Gain (Drive): Green': 0x18, | |
| # 0-100, it also changes the preset to 'user' | |
| 'Video Gain (Drive): Blue': 0x1A, | |
| # ignore for scripting | |
| 'Active Control': 0x52, | |
| # 0x01: VGA, 0x03: DVI, 0x04: HDMI, 0x0F: DisplayPort | |
| 'Input Source': 0x60, | |
| # 0-100 (unexposed command) | |
| 'Video Black Level: Red': 0x16, | |
| # 0-100 (unexposed command) | |
| 'Video Black Level: Green': 0x18, | |
| # 0-100 (unexposed command) | |
| 'Video Black Level: Blue': 0x1A, | |
| # read-only, Hz | |
| 'Horizontal Frequency': 0xAC, | |
| # read-only, 0.01 Hz | |
| 'Vertical Frequency': 0xAE, | |
| # read-only, 0x01 -> Red / Green / Blue vertical stripe | |
| 'Flat Panel Sub-Pixel Layout': 0xB2, | |
| # read-only, 0x03 -> LCD (active matrix) | |
| 'Display Technology Type': 0xB6, | |
| # read-only, 0x6f, some id | |
| 'Application Enable Key': 0xC6, | |
| # read-only, 0x5605 -> Mstar Semiconductor | |
| 'Display Controller Type': 0xC8, | |
| # read-only, 0x0101 | |
| 'Display Firmware Level': 0xC9, | |
| # 01 or 02 (unexposed command) | |
| 'OSD': 0xCA, | |
| # 0x01: power on, 0x04: standby (screenoff + blinking led), 0x05: power off | |
| 'Power Mode': 0xD6, | |
| # presets (manufacturer-defined): | |
| # no Text preset? | |
| # 00: Standard | |
| # 02: Mixed (Multimedia) | |
| # 03: Movie | |
| # 05: Games | |
| 'Display Application': 0xDC, | |
| # read-only, 0x0201 -> MCCS v2.1 | |
| 'VCP Version': 0xDF, | |
| # Codes 0xE0 to 0xFF are manufacturer-specific | |
| # ignore for scripting, 00 or 01 (Energy Smart?) | |
| 'Dell-E0': 0xE0, | |
| # ignore for scripting | |
| # power control | |
| # 01: off | |
| # 00: on | |
| 'Dell-E1': 0xE1, | |
| # ignore for scripting, 00 01 02 04 06 0B 0C 0D 0F 10 11 13 14 | |
| 'Dell-E2': 0xE2, | |
| # ignore for scripting, 00 or 01 (magicbright?) | |
| 'Dell-F0': 0xF0, | |
| # ignore for scripting, read | |
| 'Dell-F1': 0xF1, | |
| # ignore for scripting, read-only, (Energy Smart?) | |
| 'Dell-F2': 0xF2, | |
| # ignore for scripting | |
| 'Dell-FD': 0xFD, | |
| } | |
| # Reference: https://msdn.microsoft.com/en-us/library/dd692982(v=vs.85).aspx | |
| _PHYSICAL_MONITOR_DESCRIPTION_SIZE = 128 | |
| _MONITORENUMPROC = ctypes.WINFUNCTYPE(wintypes.BOOL, | |
| wintypes.HMONITOR, | |
| wintypes.HDC, | |
| ctypes.POINTER(wintypes.RECT), | |
| wintypes.LPARAM) | |
| class _PHYSICAL_MONITOR(ctypes.Structure): | |
| _fields_ = [('hPhysicalMonitor', wintypes.HANDLE), | |
| ('szPhysicalMonitorDescription', | |
| wintypes.WCHAR * _PHYSICAL_MONITOR_DESCRIPTION_SIZE)] | |
| def get_displays(): | |
| """Get a list of the available displays""" | |
| def MonitorEnumProc_callback(hmonitor, hdc, lprect, lparam): | |
| monitors.append(hmonitor) | |
| return True | |
| monitors = [] | |
| displays = [] | |
| # get display monitors | |
| if not ctypes.windll.user32.EnumDisplayMonitors(None, None, | |
| _MONITORENUMPROC(MonitorEnumProc_callback), None): | |
| raise ctypes.WinError() | |
| # get physical monitors for each display monitor | |
| for monitor in monitors: | |
| monitor_number = wintypes.DWORD() | |
| if not ctypes.windll.dxva2.GetNumberOfPhysicalMonitorsFromHMONITOR( | |
| monitor, ctypes.byref(monitor_number)): | |
| raise ctypes.WinError() | |
| physical_monitor_array = (_PHYSICAL_MONITOR * monitor_number.value)() | |
| if not ctypes.windll.dxva2.GetPhysicalMonitorsFromHMONITOR( | |
| monitor, monitor_number, physical_monitor_array): | |
| raise WinError() | |
| for physical_monitor in physical_monitor_array: | |
| displays.append(Display(physical_monitor.hPhysicalMonitor)) | |
| return displays | |
| class Display(): | |
| def __init__(self, handle): | |
| self._handle = handle | |
| self._capabilities = None | |
| @property | |
| def capabilities(self): | |
| if self._capabilities is None: | |
| self._get_capabilities() | |
| return self._capabilities | |
| @property | |
| def capabilities_raw(self): | |
| if self._capabilities_raw is None: | |
| self._get_capabilities() | |
| return self._capabilities_raw | |
| def _get_capabilities(self): | |
| # this is slow | |
| length = wintypes.DWORD() | |
| if not ctypes.windll.dxva2.GetCapabilitiesStringLength( | |
| self._handle, ctypes.byref(length)): | |
| raise ctypes.WinError() | |
| capabilities_string = (ctypes.c_char * length.value)() | |
| if not ctypes.windll.dxva2.CapabilitiesRequestAndCapabilitiesReply( | |
| self._handle, capabilities_string, length): | |
| raise ctypes.WinError() | |
| self._capabilities_raw = capabilities_string.value.decode('ascii') | |
| self._capabilities = self.parse_capabilities_string( | |
| self._capabilities_raw) | |
| @classmethod | |
| def parse_capabilities_string(cls, capabilities_string): | |
| level = 0 | |
| capabilities = {} | |
| open_p = {} | |
| close_p = {0: 0} | |
| id = {} | |
| for i, chr in enumerate(capabilities_string): | |
| if chr == '(': | |
| if i == 0: | |
| close_p[0] = 1 | |
| continue | |
| open_p[level] = i | |
| if level == 0: | |
| id[0] = capabilities_string[close_p[0] + 1:i] | |
| level += 1 | |
| elif chr == ')': | |
| level -= 1 | |
| close_p[level] = i | |
| if level == 0: | |
| values = capabilities_string[open_p[0] + 1:i] | |
| if id[0] == 'cmds': | |
| values = values.split() | |
| elif id[0] == 'vcp': | |
| values = cls._parse_vcp_list(values) | |
| capabilities[id[0]] = values | |
| return capabilities | |
| @staticmethod | |
| def _parse_vcp_list(vcp_list): | |
| vcp_dict = {} | |
| open_p = 0 | |
| for i, chr in enumerate(vcp_list): | |
| if chr == '(': | |
| open_p = i | |
| code = vcp_list[i-2:i] | |
| elif chr == ')': | |
| vcp_dict[code] = vcp_list[open_p + 1:i].split() | |
| elif chr.isspace() and vcp_list[i-1] != ')': | |
| vcp_dict[vcp_list[i-2:i]] = None | |
| return vcp_dict | |
| def _get_vcf_feature_and_vcf_feature_reply(self, code): | |
| """Get current and maximun values for continuous VCP codes""" | |
| current_value = wintypes.DWORD() | |
| maximum_value = wintypes.DWORD() | |
| if not ctypes.windll.dxva2.GetVCPFeatureAndVCPFeatureReply( | |
| self._handle, wintypes.BYTE(code), None, | |
| ctypes.byref(current_value), | |
| ctypes.byref(maximum_value)): | |
| raise ctypes.WinError() | |
| return current_value.value, maximum_value.value | |
| def _set_vcp_feature(self, code, value): | |
| """Set 'code' to 'value'""" | |
| if not ctypes.windll.dxva2.SetVCPFeature(self._handle, | |
| wintypes.BYTE(code), wintypes.DWORD(value)): | |
| raise ctypes.WinError() | |
| @property | |
| def model(self): | |
| return self.capabilities['model'] | |
| _display_technology_types = { | |
| 0x01: 'CRT (shadow mask)', | |
| 0x02: 'CRT (aperture grill)', | |
| 0x03: 'LCD (active matrix)', | |
| 0x04: 'LCoS', | |
| 0x05: 'Plasma', | |
| 0x06: 'OLED', | |
| 0x07: 'EL', | |
| 0x08: 'Dynamic MEM e.g. DLP', | |
| 0x09: 'Static MEM e.g. iMOD', } | |
| @property | |
| def display_technology_type(self): | |
| return self._display_technology_types.get( | |
| self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Display Technology Type'])[0]) | |
| _flat_panel_sub_pixel_layouts = { | |
| 0x00: 'Sub-pixel layout is not defined', | |
| 0x01: 'Red / Green / Blue vertical stripe', | |
| 0x02: 'Red / Green / Blue horizontal stripe', | |
| 0x03: 'Blue / Green / Red vertical stripe', | |
| 0x04: 'Blue/ Green / Red horizontal stripe', | |
| 0x05: 'Quad-pixel, a 2 x 2 sub-pixel structure with red at top left, ' | |
| 'blue at bottom right and green at top right and bottom left', | |
| 0x06: 'Quad-pixel, a 2 x 2 sub-pixel structure with red at bottom ' | |
| 'left, blue at top right and green at top left and bottom right', | |
| 0x07: 'Delta (triad)', | |
| 0x08: 'Mosaic with interleaved sub-pixels of different colors', } | |
| @property | |
| def flat_panel_sub_pixel_layout(self): | |
| return self._flat_panel_sub_pixel_layouts.get( | |
| self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Flat Panel Sub-Pixel Layout'])[0]) | |
| _display_controller_type_lsb = { | |
| 0x01: 'Conexant', | |
| 0x02: 'Genesis Microchip', | |
| 0x03: 'Macronix', | |
| 0x04: 'MRT (Media Reality Technologies)', | |
| 0x05: 'Mstar Semiconductor', | |
| 0x06: 'Myson', | |
| 0x07: 'Philips', | |
| 0x08: 'PixelWorks', | |
| 0x09: 'RealTek Semiconductor', | |
| 0x0A: 'Sage', | |
| 0x0B: 'Silicon Image', | |
| 0x0C: 'SmartASIC', | |
| 0x0D: 'STMicroelectronics', | |
| 0x0E: 'Topro', | |
| 0x0F: 'Trumpion', | |
| 0x10: 'Welltrend', | |
| 0x11: 'Samsung', | |
| 0x12: 'Novatek Microelectronics', | |
| 0x13: 'STK', | |
| 0xFF: 'Manufacturer designed controller', } | |
| @property | |
| def display_controller_type(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Display Controller Type'])[0] | |
| return self._display_controller_type_lsb.get(value & 0xff) | |
| @property | |
| def display_firmware_level(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Display Firmware Level'])[0] | |
| return '{}.{}'.format(value >> 8, value & 0x1f) | |
| @property | |
| def application_enable_key(self): | |
| return self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Application Enable Key'])[0] | |
| @property | |
| def vcp_version(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['VCP Version'])[0] | |
| return '{}.{}'.format(value >> 8, value & 0xff) | |
| @property | |
| def vertical_frequency(self): | |
| return self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Vertical Frequency'])[0] / 100 | |
| @property | |
| def horizontal_frequency(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Horizontal Frequency'])[0] | |
| if value < 50000: # MSB is missing, should be 0 or 1 | |
| value |= 0x10000 | |
| return value / 1000 | |
| @property | |
| def brightness(self): | |
| return self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Luminance'])[0] | |
| @brightness.setter | |
| def brightness(self, value): | |
| current, max = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Luminance']) | |
| if value == current: | |
| return | |
| if value > max: | |
| value = max | |
| elif value < 0: | |
| value = 0 | |
| self._set_vcp_feature(vcp_codes['Luminance'], value) | |
| @property | |
| def max_brightness(self): | |
| return self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Luminance'])[1] | |
| @property | |
| def contrast(self): | |
| return self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Contrast'])[0] | |
| @contrast.setter | |
| def contrast(self, value): | |
| current, max = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Contrast']) | |
| if value == current: | |
| return | |
| if value > max: | |
| value = max | |
| elif value < 0: | |
| value = 0 | |
| self._set_vcp_feature(vcp_codes['Contrast'], value) | |
| @property | |
| def max_contrast(self): | |
| return self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Contrast'])[1] | |
| @property | |
| def color_temperature(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Color Temperature Request'])[0] | |
| increment = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Color Temperature Increment'])[0] | |
| return 3000 + increment * value | |
| @color_temperature.setter | |
| def color_temperature(self, value): | |
| current, max = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Color Temperature Request']) | |
| increment = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Color Temperature Increment'])[0] | |
| value = (value - 3000) // increment | |
| if value == current: | |
| return | |
| if value > max: | |
| value = max | |
| elif value < 0: | |
| value = 0 | |
| self._set_vcp_feature(vcp_codes['Color Temperature Request'], value) | |
| @property | |
| def max_color_temperature(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Color Temperature Request'])[1] | |
| increment = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Color Temperature Increment'])[0] | |
| return 3000 + increment * value | |
| _color_presets = {0x01: 'srgb', 0x04: '5000k', 0x05: '6500k', | |
| 0x06: '7500k', 0x08: '9300k', 0x09: '10000k', | |
| 0x0B: '5700k', 0x0C: 'user' } | |
| _color_presets_i = {'srgb': 0x01, '5000k': 0x04, '6500k': 0x05, | |
| '7500k': 0x06, '9300k': 0x08, '10000k': 0x09, | |
| '5700k': 0x0B, 'user': 0x0C} | |
| @property | |
| def color_preset(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Select Color Preset'])[0] | |
| return self._color_presets[value] | |
| @color_preset.setter | |
| def color_preset(self, value): | |
| value = self._color_presets_i[value] | |
| if value == self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Select Color Preset'])[0]: | |
| return | |
| self._set_vcp_feature(vcp_codes['Select Color Preset'], value) | |
| @property | |
| def rgb(self): | |
| return [self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Video Gain (Drive): {}'.format(color)])[0] | |
| for color in ['Red', 'Green', 'Blue']] | |
| @rgb.setter | |
| def rgb(self, values): | |
| color = ['Red', 'Green', 'Blue'] | |
| template = 'Video Gain (Drive): {}' | |
| for i, value in enumerate(values): | |
| vcp_name = template.format(color[i]) | |
| current, max = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes[vcp_name]) | |
| if value in (-1, current): | |
| continue | |
| if value > max: | |
| value = max | |
| elif value < 0: | |
| value = 0 | |
| self._set_vcp_feature(vcp_codes[vcp_name], value) | |
| @property | |
| def max_rgb(self): | |
| return [self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Video Gain (Drive): {}'.format(color)])[1] | |
| for color in ['Red', 'Green', 'Blue']] | |
| _input_sources = {0x01: 'vga', 0x03: 'dvi', 0x04: 'hdmi', 0x0F: 'dp'} | |
| _input_sources_i = {'vga': 0x01, 'dvi': 0x03, 'hdmi': 0x04, 'dp': 0x0F} | |
| @property | |
| def input_source(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Input Source'])[0] | |
| return self._input_sources[value] | |
| @input_source.setter | |
| def input_source(self, value): | |
| value = self._input_sources_i[value] | |
| if value == self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Input Source'])[0]: | |
| return | |
| self._set_vcp_feature(vcp_codes['Input Source'], value) | |
| _display_applications = {0x00: 'std', 0x02: 'mix', 0x03: 'mov', 0x05: 'gam'} | |
| _display_applications_i = {'std': 0x00, 'mix': 0x02, 'mov': 0x03, 'gam': 0x05} | |
| @property | |
| def display_application(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Display Application'])[0] | |
| return self._display_applications[value] | |
| @display_application.setter | |
| def display_application(self, value): | |
| value = self._display_applications_i[value] | |
| if value == self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Display Application'])[0]: | |
| return | |
| self._set_vcp_feature(vcp_codes['Display Application'], value) | |
| _power_mode = {0x01: 'on', 0x05: 'off'} | |
| _power_mode_i = {'on': 0x01, 'off': 0x05} | |
| @property | |
| def power_mode(self): | |
| value = self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Power Mode'])[0] | |
| return self._power_mode[value] | |
| @power_mode.setter | |
| def power_mode(self, value): | |
| value = self._power_mode_i[value] | |
| if value == self._get_vcf_feature_and_vcf_feature_reply( | |
| vcp_codes['Power Mode'])[0]: | |
| return | |
| self._set_vcp_feature(vcp_codes['Power Mode'], value) | |
| _restore_options = { | |
| 'all': 'Restore Factory Defaults', | |
| 'luminance': 'Restore Factory Luminance/ Contrast Defaults', | |
| 'color': 'Restore Factory Color Defaults'} | |
| def restore(self, option): | |
| """Restore factory defaults ('all' / 'luminance' / 'colors')""" | |
| self._set_vcp_feature(vcp_codes[self._restore_options[option]], 1) | |
| def close(self): | |
| if not ctypes.windll.dxva2.DestroyPhysicalMonitor(self._handle): | |
| raise ctypes.WinError() | |
| def __del__(self): | |
| self.close() | |
| if __name__ == '__main__': | |
| import sys | |
| import os | |
| import argparse | |
| import textwrap | |
| # Custom Action for argparse | |
| # The accepted number of arguments can be specified with '_nargs' (list) | |
| # 'nargs' must be '*' | |
| # Added also 'default_str' and 'const_str', formatted with 'default' and | |
| # 'const' respectively, that can be used on the 'help' string | |
| class VariableNArgsAction(argparse.Action): | |
| def __init__(self, option_strings, dest, **kwargs): | |
| self._nargs = kwargs.pop('_nargs', None) | |
| self.const_str = kwargs.pop('const_str', None) | |
| self.default_str = kwargs.pop('default_str', None) | |
| argparse.Action.__init__(self, option_strings, dest, **kwargs) | |
| if self.const_str is not None: | |
| self.const_str = self.const_str.format(*self.const) | |
| if self.default_str is not None: | |
| self.default_str = self.default_str.format(*self.default) | |
| def __call__(self, parser, namespace, values, option_string=None): | |
| if len(values) not in self._nargs: | |
| parser.error('argument {}: invalid number of arguments' | |
| .format('/'.join(self.option_strings))) | |
| if not values and self.const is not None: | |
| values = self.const | |
| setattr(namespace, self.dest, values) | |
| # For VariableNArgsAction, use 'metavar' as the displayed args string | |
| # XXX: not part of the public API | |
| class RawDescriptionHelpFormatter2(argparse.RawDescriptionHelpFormatter): | |
| def _format_args(self, action, *args, **kwargs): | |
| if action.metavar is not None and isinstance(action, | |
| VariableNArgsAction): | |
| return action.metavar | |
| return argparse.RawDescriptionHelpFormatter._format_args( | |
| self, action, *args, **kwargs) | |
| # Parse command line | |
| name = os.path.basename(__file__) | |
| description, license1, license2 = __doc__.rpartition('\nCopyright') | |
| license = license1 + license2 | |
| parser = argparse.ArgumentParser(prog=name, description=description, | |
| epilog=license, formatter_class=RawDescriptionHelpFormatter2, | |
| add_help=False) | |
| parser_o = parser.add_argument_group('optional arguments', | |
| 'if not argument is passed, all available display info is printed') | |
| parser_o.add_argument('-h', '--help', action='help', | |
| help='show this help message and exit') | |
| parser_o.add_argument('-V', '--version', action='version', | |
| version='{} v{}\n{}'.format(name, version, license)) | |
| parser_o.add_argument('-b', '--brightness', nargs='?', type=int, | |
| const=-1, metavar='NEW_BRIGHTNESS', | |
| help='retrieve or set brightness (0-100)') | |
| parser_o.add_argument('-c', '--contrast', type=int, nargs='?', | |
| const=-1, metavar='NEW_CONTRAST', | |
| help='retrieve or set contrast (0-100)') | |
| parser_o.add_argument('-cp', '--color_preset', type = str.lower, nargs='?', | |
| choices=sorted(Display._color_presets_i.keys()), | |
| const=-1, help='retrieve or set the color preset') | |
| parser_o.add_argument('-u', '--rgb', nargs='*', action=VariableNArgsAction, | |
| _nargs=(0, 3), type=int, const=-1, | |
| metavar='[NEW_RED NEW_GREEN NEW_BLUE]', | |
| help='retrieve or set red, green and blue gains ' | |
| '(0-100)') | |
| parser_o.add_argument('-i', '--input_source', type = str.lower, nargs='?', | |
| choices=sorted(Display._input_sources_i.keys()), | |
| const=-1, help='retrieve or set the input source') | |
| parser_o.add_argument('-p', '--power_mode', type = str.lower, nargs='?', | |
| choices=sorted(Display._power_mode_i.keys()), | |
| const=-1, help='retrieve or set the power mode') | |
| parser_o.add_argument('-app', '--display_application', type = str.lower, nargs='?', | |
| choices=sorted(Display._display_applications_i.keys()), | |
| const=-1, help='retrieve or set the display application') | |
| parser_o.add_argument('-r', '--restore', type = str.lower, | |
| choices=sorted(Display._restore_options.keys()), | |
| help='restore factory defaults') | |
| settings = vars(parser.parse_args()) | |
| # Set / show display parameters | |
| for display in get_displays(): | |
| model = display.capabilities['model'] | |
| if model in ('U2713HM'): | |
| if len(sys.argv) == 1: | |
| print(textwrap.dedent('''\ | |
| model: {model} | |
| display technology type: {display.display_technology_type} | |
| flat panel sub-pixel layout: {display.flat_panel_sub_pixel_layout} | |
| display controller type: {display.display_controller_type} | |
| display firmware level: v{display.display_firmware_level} | |
| application enable key: {display.application_enable_key} | |
| vcp version: v{display.vcp_version} | |
| vertical frequency: {display.vertical_frequency} Hz | |
| horizontal frequency: {display.horizontal_frequency} kHz | |
| brightness: {display.brightness} | |
| contrast {display.contrast} | |
| color preset: {display.color_preset} | |
| rgb gains: {display.rgb} | |
| input source: {display.input_source} | |
| power mode: {display.power_mode} | |
| '''.format(model=model, display=display))) | |
| sys.exit() | |
| restore = settings.pop('restore') | |
| if restore: | |
| display.restore(restore) | |
| for key, value in settings.items(): | |
| if value is not None: | |
| if value == -1: | |
| print(getattr(display, key)) | |
| else: | |
| setattr(display, key, value) | |
| else: | |
| print('model not supported:', model, file=sys.stderr) |
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