mirror of
https://github.com/microsoft/PowerToys.git
synced 2026-02-24 04:00:02 +01:00
06a72f3c54
- Improved PowerDisplay design docs for clarity and technical accuracy - Rewrote DDC/CI section to better explain real-world issues - Updated architecture diagrams and terminology (Helpers → Utils) - Replaced ASCII diagrams with Mermaid for better visualization - Clarified monitor identification and MST/Clone mode handling - Corrected PnP Manufacturer ID attribution to UEFI Forum - Moved PnpIdHelper.cs to Utils namespace and updated all references
87 lines
3.0 KiB
C#
87 lines
3.0 KiB
C#
// Copyright (c) Microsoft Corporation
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// The Microsoft Corporation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System;
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using System.Collections.Frozen;
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using System.Collections.Generic;
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namespace PowerDisplay.Common.Utils;
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/// <summary>
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/// Helper class for mapping PnP (Plug and Play) manufacturer IDs to display names.
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/// PnP IDs are 3-character codes assigned by Microsoft to hardware manufacturers.
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/// See: https://uefi.org/pnp_id_list
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/// </summary>
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public static class PnpIdHelper
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{
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/// <summary>
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/// Map of common laptop/monitor manufacturer PnP IDs to display names.
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/// Only includes manufacturers known to produce laptops with internal displays.
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/// </summary>
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private static readonly FrozenDictionary<string, string> ManufacturerNames = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
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{
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// Major laptop manufacturers
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{ "ACR", "Acer" },
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{ "AUO", "AU Optronics" },
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{ "BOE", "BOE" },
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{ "CMN", "Chi Mei Innolux" },
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{ "DEL", "Dell" },
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{ "HWP", "HP" },
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{ "IVO", "InfoVision" },
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{ "LEN", "Lenovo" },
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{ "LGD", "LG Display" },
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{ "NCP", "Nanjing CEC Panda" },
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{ "SAM", "Samsung" },
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{ "SDC", "Samsung Display" },
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{ "SEC", "Samsung Electronics" },
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{ "SHP", "Sharp" },
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{ "AUS", "ASUS" },
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{ "MSI", "MSI" },
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{ "APP", "Apple" },
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{ "SNY", "Sony" },
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{ "PHL", "Philips" },
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{ "HSD", "HannStar" },
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{ "CPT", "Chunghwa Picture Tubes" },
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{ "QDS", "Quanta Display" },
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{ "TMX", "Tianma Microelectronics" },
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{ "CSO", "CSOT" },
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// Microsoft Surface
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{ "MSF", "Microsoft" },
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}.ToFrozenDictionary(StringComparer.OrdinalIgnoreCase);
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/// <summary>
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/// Extract the 3-character PnP manufacturer ID from a hardware ID.
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/// </summary>
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/// <param name="hardwareId">Hardware ID like "LEN4038" or "BOE0900".</param>
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/// <returns>The 3-character PnP ID (e.g., "LEN"), or null if invalid.</returns>
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public static string? ExtractPnpId(string? hardwareId)
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{
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if (string.IsNullOrEmpty(hardwareId) || hardwareId.Length < 3)
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{
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return null;
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}
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// PnP ID is the first 3 characters
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return hardwareId.Substring(0, 3).ToUpperInvariant();
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}
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/// <summary>
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/// Get a user-friendly display name for an internal display based on its hardware ID.
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/// </summary>
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/// <param name="hardwareId">Hardware ID like "LEN4038" or "BOE0900".</param>
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/// <returns>Display name like "Lenovo Built-in Display" or "Built-in Display" as fallback.</returns>
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public static string GetBuiltInDisplayName(string? hardwareId)
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{
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var pnpId = ExtractPnpId(hardwareId);
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if (pnpId != null && ManufacturerNames.TryGetValue(pnpId, out var manufacturer))
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{
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return $"{manufacturer} Built-in Display";
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}
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return "Built-in Display";
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}
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}
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