Follow up of Brightness slider not working when Windows 11 HDR on and SO question Controlling SDR content brightness programmatically in Windows 11.
Windows.Graphics.Display.DisplayInformation of WinRT had been only usable within UWP until Windows.Graphics.Display.IDisplayInformationStaticsInterop interface introduced on Windows 11 10.0.22621.0. This interface has GetForWindow and GetForMonitor methods for C++/WinRT to obtain DisplayInformation.
This functionality is accessible from WPF (.NET 6.0) or WinUI as well through Windows.Graphics.Display.DisplayInformationInterop which has GetForWindow and GetForMonitor methods and was introduced on Windows 11 10.0.22621.0 and .NET 6.0, as indicated in Available via Target Framework Moniker.
For WPF (.NET Framework), no direct way to get DisplayInformation is provided but it can be obtained from C++/WinRT Runtime Component library or using COM interop.
To obtain DisplayInformation from C++/WinRT Runtime Component library, see Enhancing Non-packaged Desktop Apps using Windows Runtime Components and C++/WinRTのブリッジを作ってC#から呼び出す方法. Please note that AppContainerApplication in the library must be made false to allow the library to access APIs other than WinRT.
<AppContainerApplication>false</AppContainerApplication>As for the ways for .NET Framework to use WinRT, the latest one is to install Microsoft.Windows.SDK.Contracts package. See Earlier versions of .NET: Install the Microsoft.Windows.SDK.Contracts NuGet package.
To obtain DisplayInformation using COM interop, the way to obtain RadialController for Surface Dial can be applied. See Radial Controller sample and デスクトップ アプリを Surface Dial に対応させる.
var factory = (IDisplayInformationStaticsInterop)WindowsRuntimeMarshal.GetActivationFactory(typeof(DisplayInformation));
var iid = typeof(DisplayInformation).GetInterface("IDisplayInformation").GUID;
factory.GetForMonitor(monitorHandle, ref iid, out DisplayInformation displayInfo);
return displayInfo;For GetForWindow method and AdvancedColorInfoChanged or other events, Windows.System.DispatcherQueue must be running. See IDisplayInformationStaticsInterop::GetForWindow method and Windows App SDK 1.1 Preview 3 で追加された Desktop Acrylic と Mica のサポートを試した.
Result of Dumpbin dose not include the signature of the function in question.
> dumpbin /exports c:\Windows\System32\dwmapi.dll
Microsoft (R) COFF/PE Dumper Version 14.36.32534.0
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file c:\Windows\System32\dwmapi.dll
File Type: DLL
Section contains the following exports for dwmapi.dll
00000000 characteristics
7ECC0A11 time date stamp
0.00 version
100 ordinal base
99 number of functions
44 number of names
ordinal hint RVA name
111 0 00017DF0 DllCanUnloadNow
115 1 00017E20 DllGetClassObject
116 2 00013160 DwmAttachMilContent
117 3 00002110 DwmDefWindowProc
118 4 00013160 DwmDetachMilContent
119 5 00007480 DwmEnableBlurBehindWindow
102 6 000128D0 DwmEnableComposition
120 7 00002880 DwmEnableMMCSS
121 8 00002CA0 DwmExtendFrameIntoClientArea
122 9 00003860 DwmFlush
123 A 00012440 DwmGetColorizationColor
125 B 00002930 DwmGetCompositionTimingInfo
126 C 00013160 DwmGetGraphicsStreamClient
129 D 00013160 DwmGetGraphicsStreamTransformHint
130 E 00013170 DwmGetTransportAttributes
133 F 000111C0 DwmGetUnmetTabRequirements
134 10 00004990 DwmGetWindowAttribute
149 11 00001DC0 DwmInvalidateIconicBitmaps
184 12 00004C90 DwmIsCompositionEnabled
185 13 00012630 DwmModifyPreviousDxFrameDuration
186 14 00014130 DwmQueryThumbnailSourceSize
187 15 00014270 DwmRegisterThumbnail
188 16 000135D0 DwmRenderGesture
189 17 00012630 DwmSetDxFrameDuration
190 18 00014340 DwmSetIconicLivePreviewBitmap
191 19 00014630 DwmSetIconicThumbnail
192 1A 00012630 DwmSetPresentParameters
193 1B 00003540 DwmSetWindowAttribute
194 1C 000137A0 DwmShowContact
195 1D 00013880 DwmTetherContact
156 1E 00013990 DwmTetherTextContact
196 1F 00015DF0 DwmTransitionOwnedWindow
197 20 00003910 DwmUnregisterThumbnail
198 21 000149E0 DwmUpdateThumbnailProperties
136 22 00006290 DwmpAllocateSecurityDescriptor
100 23 00005F40 DwmpDxGetWindowSharedSurface
101 24 00011FA0 DwmpDxUpdateWindowSharedSurface
128 25 00001D10 DwmpDxgiIsThreadDesktopComposited
143 26 00011FA0 DwmpEnableDDASupport
137 27 00006440 DwmpFreeSecurityDescriptor
127 28 000042B0 DwmpGetColorizationParameters
135 29 00013B70 DwmpRenderFlick
131 2A 00002750 DwmpSetColorizationParameters
183 2B 00009FC0 DwmpUpdateProxyWindowForCapture
103 00012D60 [NONAME]
104 00012630 [NONAME]
105 00011FA0 [NONAME]
106 00012BD0 [NONAME]
107 00012500 [NONAME]
108 00012630 [NONAME]
109 00013160 [NONAME]
110 00013160 [NONAME]
112 00013160 [NONAME]
113 000121B0 [NONAME]
114 00014D50 [NONAME]
124 00014E30 [NONAME]
132 00002970 [NONAME]
138 00001FD0 [NONAME]
139 00005A10 [NONAME]
140 000020B0 [NONAME]
141 00005A40 [NONAME]
142 000157E0 [NONAME]
144 00015EE0 [NONAME]
145 00015ED0 [NONAME]
146 00013190 [NONAME]
147 00005020 [NONAME]
148 00001FE0 [NONAME]
150 00016600 [NONAME]
151 00016510 [NONAME]
152 000166E0 [NONAME]
153 000167C0 [NONAME]
154 00016AB0 [NONAME]
155 000168E0 [NONAME]
157 00012C80 [NONAME]
158 00013020 [NONAME]
159 00001D40 [NONAME]
160 000151B0 [NONAME]
161 00007AA0 [NONAME]
162 00006200 [NONAME]
163 00014B70 [NONAME]
164 00015890 [NONAME]
165 00013360 [NONAME]
166 00014F80 [NONAME]
167 00013280 [NONAME]
168 00017620 [NONAME]
169 00004320 [NONAME]
170 00007970 [NONAME]
171 00012DE0 [NONAME]
172 00015B70 [NONAME]
173 00012AF0 [NONAME]
174 00012930 [NONAME]
175 000130D0 [NONAME]
176 00012F90 [NONAME]
177 00012E70 [NONAME]
178 000169F0 [NONAME]
179 00015C30 [NONAME]
180 00001ED0 [NONAME]
181 00012A10 [NONAME]
182 00012F00 [NONAME]
Summary
4000 .data
1000 .didat
2000 .pdata
8000 .rdata
1000 .reloc
5000 .rsrc
19000 .text