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app/WindowsDisplayAPI/DisplayConfig/PathTargetInfo.cs
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330
app/WindowsDisplayAPI/DisplayConfig/PathTargetInfo.cs
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using WindowsDisplayAPI.Exceptions;
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using WindowsDisplayAPI.Native.DisplayConfig;
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using WindowsDisplayAPI.Native.DisplayConfig.Structures;
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namespace WindowsDisplayAPI.DisplayConfig
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{
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/// <summary>
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/// Represents a path and its target
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/// </summary>
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public class PathTargetInfo
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{
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private readonly PathTargetDesktopImage _desktopImage;
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private readonly PathTargetSignalInfo _signalInfo;
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/// <summary>
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/// Creates a new PathTargetInfo
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/// </summary>
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/// <param name="displayTarget">The display target device</param>
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/// <param name="isVirtualModeSupported">A boolean value indicating the target virtual mode support</param>
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public PathTargetInfo(PathDisplayTarget displayTarget, bool isVirtualModeSupported = false)
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{
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DisplayTarget = displayTarget;
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IsVirtualModeSupportedByPath = isVirtualModeSupported;
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}
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/// <summary>
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/// Creates a new PathTargetInfo
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/// </summary>
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/// <param name="displayTarget">The display target device</param>
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/// <param name="frequencyInMillihertz">Display frequency in millihertz</param>
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/// <param name="scanLineOrdering">Display scan line ordering</param>
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/// <param name="rotation">Display rotation</param>
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/// <param name="scaling">Display scaling</param>
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/// <param name="isVirtualModeSupported">A boolean value indicating the target virtual mode support</param>
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public PathTargetInfo(
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PathDisplayTarget displayTarget,
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ulong frequencyInMillihertz,
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DisplayConfigScanLineOrdering scanLineOrdering = DisplayConfigScanLineOrdering.NotSpecified,
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DisplayConfigRotation rotation = DisplayConfigRotation.NotSpecified,
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DisplayConfigScaling scaling = DisplayConfigScaling.Preferred,
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bool isVirtualModeSupported = false
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) : this(displayTarget, isVirtualModeSupported)
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{
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FrequencyInMillihertz = frequencyInMillihertz;
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ScanLineOrdering = scanLineOrdering;
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Rotation = rotation;
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Scaling = scaling;
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}
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/// <summary>
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/// Creates a new PathTargetInfo
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/// </summary>
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/// <param name="displayTarget">The display target device</param>
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/// <param name="signalInfo">The display signal information</param>
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/// <param name="isVirtualModeSupported">A boolean value indicating the target virtual mode support</param>
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public PathTargetInfo(
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PathDisplayTarget displayTarget,
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PathTargetSignalInfo signalInfo,
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bool isVirtualModeSupported = false
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) : this(displayTarget, isVirtualModeSupported)
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{
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_signalInfo = signalInfo;
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FrequencyInMillihertz = signalInfo.VerticalSyncFrequencyInMillihertz;
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ScanLineOrdering = signalInfo.ScanLineOrdering;
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IsSignalInformationAvailable = true;
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}
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/// <summary>
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/// Creates a new PathTargetInfo
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/// </summary>
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/// <param name="displayTarget">The display target device</param>
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/// <param name="signalInfo">The display signal information</param>
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/// <param name="rotation">Display rotation</param>
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/// <param name="scaling">Display scaling</param>
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/// <param name="isVirtualModeSupported">A boolean value indicating the target virtual mode support</param>
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public PathTargetInfo(
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PathDisplayTarget displayTarget,
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PathTargetSignalInfo signalInfo,
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DisplayConfigRotation rotation = DisplayConfigRotation.NotSpecified,
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DisplayConfigScaling scaling = DisplayConfigScaling.Preferred,
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bool isVirtualModeSupported = false
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) : this(
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displayTarget,
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0,
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DisplayConfigScanLineOrdering.NotSpecified,
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rotation,
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scaling,
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isVirtualModeSupported
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)
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{
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_signalInfo = signalInfo;
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FrequencyInMillihertz = signalInfo.VerticalSyncFrequencyInMillihertz;
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ScanLineOrdering = signalInfo.ScanLineOrdering;
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IsSignalInformationAvailable = true;
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}
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/// <summary>
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/// Creates a new PathTargetInfo
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/// </summary>
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/// <param name="displayTarget">The display target device</param>
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/// <param name="signalInfo">The display signal information</param>
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/// <param name="desktopImage">The display desktop image information</param>
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/// <param name="isVirtualModeSupported">A boolean value indicating the target virtual mode support</param>
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public PathTargetInfo(
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PathDisplayTarget displayTarget,
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PathTargetSignalInfo signalInfo,
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PathTargetDesktopImage desktopImage,
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bool isVirtualModeSupported = false
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) : this(displayTarget, signalInfo, isVirtualModeSupported)
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{
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_desktopImage = desktopImage;
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IsDesktopImageInformationAvailable = true;
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}
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/// <summary>
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/// Creates a new PathTargetInfo
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/// </summary>
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/// <param name="displayTarget">The display target device</param>
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/// <param name="signalInfo">The display signal information</param>
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/// <param name="desktopImage">The display desktop image information</param>
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/// <param name="rotation">Display rotation</param>
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/// <param name="scaling">Display scaling</param>
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/// <param name="isVirtualModeSupported">A boolean value indicating the target virtual mode support</param>
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public PathTargetInfo(
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PathDisplayTarget displayTarget,
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PathTargetSignalInfo signalInfo,
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PathTargetDesktopImage desktopImage,
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DisplayConfigRotation rotation = DisplayConfigRotation.NotSpecified,
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DisplayConfigScaling scaling = DisplayConfigScaling.Preferred,
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bool isVirtualModeSupported = false
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) : this(displayTarget, signalInfo, rotation, scaling, isVirtualModeSupported)
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{
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_desktopImage = desktopImage;
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IsDesktopImageInformationAvailable = true;
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}
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internal PathTargetInfo(
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DisplayConfigPathInfoFlags pathFlags,
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DisplayConfigPathTargetInfo targetInfo,
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DisplayConfigTargetMode? targetMode,
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DisplayConfigDesktopImageInfo? desktopImageMode
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)
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{
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IsPathActive = pathFlags.HasFlag(DisplayConfigPathInfoFlags.Active);
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IsVirtualModeSupportedByPath = pathFlags.HasFlag(DisplayConfigPathInfoFlags.SupportVirtualMode);
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DisplayTarget = new PathDisplayTarget(
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new PathDisplayAdapter(targetInfo.AdapterId),
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targetInfo.TargetId,
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targetInfo.TargetAvailable
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);
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OutputTechnology = targetInfo.OutputTechnology;
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Rotation = targetInfo.Rotation;
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Scaling = targetInfo.Scaling;
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ScanLineOrdering = targetInfo.ScanLineOrdering;
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FrequencyInMillihertz = targetInfo.RefreshRate.ToValue(1000);
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ForcedBootAvailability = targetInfo.StatusFlags.HasFlag(
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DisplayConfigPathTargetInfoFlags.AvailabilityBoot
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);
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ForcedPathAvailability = targetInfo.StatusFlags.HasFlag(
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DisplayConfigPathTargetInfoFlags.AvailabilityPath
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);
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ForcedSystemAvailability = targetInfo.StatusFlags.HasFlag(
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DisplayConfigPathTargetInfoFlags.AvailabilitySystem
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);
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IsCurrentlyInUse = targetInfo.StatusFlags.HasFlag(
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DisplayConfigPathTargetInfoFlags.InUse
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);
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IsForcible = targetInfo.StatusFlags.HasFlag(
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DisplayConfigPathTargetInfoFlags.Forcible
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);
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IsSignalInformationAvailable = targetMode.HasValue;
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if (targetMode.HasValue)
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{
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_signalInfo = new PathTargetSignalInfo(targetMode.Value.TargetVideoSignalInfo);
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}
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IsDesktopImageInformationAvailable = desktopImageMode.HasValue;
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if (desktopImageMode.HasValue)
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{
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_desktopImage = new PathTargetDesktopImage(desktopImageMode.Value);
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}
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}
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/// <summary>
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/// Gets an instance of PathTargetDesktopImage containing information about this target desktop image
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/// </summary>
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/// <exception cref="MissingModeException">Target mode information is missing</exception>
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public PathTargetDesktopImage DesktopImage
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{
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get
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{
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if (!IsDesktopImageInformationAvailable)
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{
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throw new MissingModeException(
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"Desktop image information is missing or not available.",
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DisplayConfigModeInfoType.DesktopImage
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);
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}
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return _desktopImage;
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}
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}
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/// <summary>
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/// Gets extra information about the representing display target device
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/// </summary>
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public PathDisplayTarget DisplayTarget { get; }
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/// <summary>
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/// Gets a boolean value indicating that the output is currently being forced in a boot-persistent manner
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/// </summary>
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public bool ForcedBootAvailability { get; }
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/// <summary>
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/// Gets a boolean value indicating that the output is currently being forced in a path-persistent manner
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/// </summary>
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public bool ForcedPathAvailability { get; }
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/// <summary>
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/// Gets a boolean value indicating that the output is currently being forced in a non-persistent manner
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/// </summary>
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public bool ForcedSystemAvailability { get; }
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/// <summary>
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/// Gets a value that specifies the refresh rate of the target
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/// </summary>
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public ulong FrequencyInMillihertz { get; }
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/// <summary>
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/// Gets a boolean value indicating if the target is in use on an active path
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/// </summary>
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public bool IsCurrentlyInUse { get; }
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/// <summary>
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/// Gets a boolean value indicating the presence of the desktop image information
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/// </summary>
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public bool IsDesktopImageInformationAvailable { get; }
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/// <summary>
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/// Gets a boolean value indicating that the output can be forced on this target even if a monitor is not detected
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/// </summary>
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public bool IsForcible { get; }
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/// <summary>
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/// Gets a boolean value indicating if this path is or should be active
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/// </summary>
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public bool IsPathActive { get; } = true;
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/// <summary>
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/// Gets a boolean value indicating the presence of the signal information
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/// </summary>
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public bool IsSignalInformationAvailable { get; }
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/// <summary>
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/// Gets a boolean value that indicates if the path supports virtual mode
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/// </summary>
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public bool IsVirtualModeSupportedByPath { get; }
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/// <summary>
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/// Gets the type of the display device connection
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/// </summary>
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public DisplayConfigVideoOutputTechnology OutputTechnology { get; } = DisplayConfigVideoOutputTechnology.Other;
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/// <summary>
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/// Gets the rotation of the target
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/// </summary>
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public DisplayConfigRotation Rotation { get; }
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/// <summary>
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/// Gets the value that specifies how the source image is scaled to the target
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/// </summary>
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public DisplayConfigScaling Scaling { get; }
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/// <summary>
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/// Gets the value that specifies the scan-line ordering of the output on the target
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/// </summary>
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public DisplayConfigScanLineOrdering ScanLineOrdering { get; }
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/// <summary>
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/// Gets the target device signal information
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/// </summary>
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/// <exception cref="MissingModeException">Target mode information is missing</exception>
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public PathTargetSignalInfo SignalInfo
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{
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get
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{
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if (!IsSignalInformationAvailable)
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{
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throw new MissingModeException(
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"Target mode information is missing or not available.",
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DisplayConfigModeInfoType.Target
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);
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}
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return _signalInfo;
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}
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}
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/// <inheritdoc />
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public override string ToString()
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{
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return $"{DisplayTarget}: {FrequencyInMillihertz / 1000}hz{(IsCurrentlyInUse ? " [In Use]" : "")}";
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}
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internal DisplayConfigDesktopImageInfo? GetDisplayConfigDesktopImageInfo()
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{
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if (IsDesktopImageInformationAvailable)
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{
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return DesktopImage.GetDisplayConfigDesktopImageInfo();
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}
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return null;
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}
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internal DisplayConfigTargetMode? GetDisplayConfigTargetMode()
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{
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if (IsSignalInformationAvailable)
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{
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return new DisplayConfigTargetMode(SignalInfo.GetDisplayConfigVideoSignalInfo());
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}
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return null;
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}
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}
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}
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