MSCMS (WCS) 関数群

NativeMethods.cs

using System;
using System.ComponentModel;
using System.Runtime.InteropServices;
using System.Text;

namespace Mntone.Sample
{
	internal enum DeviceClassFlags : uint
	{
		/// <summary>
		/// 'mntr' 
		/// </summary>
		Monitor = 0x6d6e7472,

		/// <summary>
		/// 'prtr'
		/// </summary>
		Printer = 0x70727472,

		/// <summary>
		/// 'scnr'
		/// </summary>
		Scanner = 0x73636e72
	}

	internal enum WCSProfileManagementScope : uint
	{
		SystemWide,
		CurrentUser,
	}

	internal enum ColorProfileType : uint
	{
		ICC,
		DMP,
		CAMP,
		GMMP,
	}

	[Flags]
	internal enum ColorProfileSubType : uint
	{
		// intent
		Perceptual = 0,
		Relative = 1,
		Saturation = 2,
		Absolute = 3,

		// working space
		None,
		RGBWorkingSpace,
		CustomWorkingSpace,
	};

	internal static class NativeMethods
	{
		private const string MSCMS_DLL = "mscms.dll";
		
		public static class Mscms
		{
			[DllImport(MSCMS_DLL, SetLastError = true)]
			[return: MarshalAs(UnmanagedType.Bool)]
			private static extern bool WcsGetUsePerUserProfiles(
				[In] string deviceName,
				[In] DeviceClassFlags deviceClass,
				[Out] out bool usePerUserProfiles);

			internal static bool WcsGetUsePerUserProfiles(string deviceName, DeviceClassFlags deviceClass)
			{
				if (!WcsGetUsePerUserProfiles(deviceName, deviceClass, out var usePerUserProfiles))
				{
					throw new Win32Exception(Marshal.GetLastWin32Error());
				}
				return usePerUserProfiles;
			}

			[DllImport(MSCMS_DLL, SetLastError = true, CharSet = CharSet.Unicode)]
			[return: MarshalAs(UnmanagedType.Bool)]
			private static extern bool WcsGetDefaultColorProfileSize(
				[In] WCSProfileManagementScope profileManagementScope,
				[In, Optional] string pDeviceName,
				[In] ColorProfileType cptColorProfileType,
				[In] ColorProfileSubType cpstColorProfileSubType,
				[In] uint dwProfileID,
				[Out] out uint cbProfileName);

			[DllImport(MSCMS_DLL, SetLastError = true, CharSet = CharSet.Unicode)]
			[return: MarshalAs(UnmanagedType.Bool)]
			private static extern bool WcsGetDefaultColorProfile(
				[In] WCSProfileManagementScope profileManagementScope,
				[In, Optional] string pDeviceName,
				[In] ColorProfileType cptColorProfileType,
				[In] ColorProfileSubType cpstColorProfileSubType,
				[In] uint dwProfileID,
				[In] uint cbProfileName,
				[Out] StringBuilder profileName);

			internal static string WcsGetDefaultColorProfile(WCSProfileManagementScope profileManagementScope, string deviceName, ColorProfileType colorProfileType, ColorProfileSubType colorProfileSubType, uint dwProfileID)
			{
				if (!WcsGetDefaultColorProfileSize(profileManagementScope, deviceName, colorProfileType, colorProfileSubType, dwProfileID, out var profileName))
				{
					throw new Win32Exception(Marshal.GetLastWin32Error());
				}

				var builder = new StringBuilder((int)(profileName / 2));
				if (!WcsGetDefaultColorProfile(profileManagementScope, deviceName, colorProfileType, colorProfileSubType, dwProfileID, profileName, builder))
				{
					throw new Win32Exception(Marshal.GetLastWin32Error());
				}
				return builder.ToString();
			}
		}
	}
}