Add support for 22449 & correct naming #1

NyaMisty · 2021-09-17T00:42:45Z

22449 introduced a new method GetAllCurrentDesktops, and I fixed it. Tested on 22454
Actually, all name of interface can be retrived from twinui.pcshell.dll's PDB symbol:

Also, Grabacr07's repo haven't been active for over a year, and Windows 11 is moving blazing fast, would you like to maintain a new VirtualDesktop package, so that users can benefit from newest Windows virtual features.

sliddington · 2021-09-17T04:07:51Z

Thanks @NyaMisty
Since you seem to have the process well covered would you mind documenting the process for these updates - or is that already somewhere else - not sure where we should put it of course!

anaisbetts · 2021-09-18T12:16:04Z

@NyaMisty Good find! This is great, thanks for updating this

NyaMisty · 2021-09-18T12:25:15Z

Document here comes:
For Interface Definition changing cases (i.e. Interface GUID & CLSID didn't change):

Retriving Interface Definition: Download and open the OleViewDotNet, and go to Registry -> Interface By Name, then lookup IVirtualDesktopManager and IVirtualDesktopManager, right click "View Proxy Definition"
Use IDA Pro to open twinui.pcshell.dll, find CVirtualDesktopManager, and then you'll find functions with [thunk] prefix, corresponds then with interface definition

For CLSID changing cases: (much harder, not for non-professional)

Search whole System32 for Interface GUID's first part like "b2f925b9" using hex editor (note the little endian, you'll have to search "b9 25 f9 b2" in the editor), check them in IDA one by one

sliddington · 2021-09-18T14:32:15Z

Awesome, thanks. BTW, I noticed mntone's pr/57 has an extra latest version 21359 not on the fork and I merged yours and that version on my own fork (also adding the missing names). Simon

…

On 18 September 2021 10:25:31 pm NyaMisty ***@***.***> wrote: Document here comes: For Interface Definition changing cases (i.e. Interface GUID & CLSID didn't change): 1. Retriving Interface Definition: Download and open the OleViewDotNet, and go to Registry -> Interface By Name, then lookup IVirtualDesktopManager and IVirtualDesktopManager, right click "View Proxy Definition" 2. Use IDA Pro to open twinui.pcshell.dll, find CVirtualDesktopManager, and then you'll find functions with [thunk] prefix, corresponds then with interface definition image <https://user-images.githubusercontent.com/5344431/133888619-f540bcfe-3980-459f-b0ed-6652cf60ff62.png> For CLSID changing cases: (much harder, not for non-professional) * Search whole System32 for Interface GUID's first part like "b2f925b9" using hex editor (note the little endian, you'll have to search "b9 25 f9 b2" in the editor), check them in IDA one by one — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#1 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AEPDJ6MQYRFPKV2CPWA7PXDUCSALNANCNFSM5EF4TKZA>. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

anaisbetts · 2021-09-22T19:59:04Z

This mostly works, but it seems that VirtualDesktopNotificationListener (exposed in the library as VirtualDesktop.CurrentChanged and friends) don't fire events anymore

sliddington · 2021-09-25T14:55:10Z

@anaisbetts I checked that and it turns out the 21359 version was correct. So on my fork I have merged NyaMisty's 22449 version (since it has correct naming) with the 21359 interface. It works for me on 22463.
My fork is https://github.com/sliddington/VirtualDesktop

sliddington · 2021-10-25T00:22:59Z

Looks like the official Win 11 and Insider versions since don't have the IDs in the registry at all - does this mean we can't access via COM any more? I did a "go back" to the previous version I had (22463) to get the IDs saved and am about to go forward again to see if it works if we know them already instead of fetching from the registry - I imagine not since I guess the registry is what links that ID to the binaries.

I suspect the new way to access this stuff is via Windows.Internal.Shell.Multitasking... I see some likely stuff in Interfaces By Name and Runtime Classes in OleViewDotNet.

Any ideas @NyaMisty @mntone ?

sliddington · 2021-10-26T13:08:19Z

It does work with the ids from 22463 - they are in the registry but the interface names have been replaced by the ids so the function that searches by name fails.

Ids are .. i'll be updating my fork in next few days
//return new Dictionary<string, Guid> {
// { "IVirtualDesktopNotificationService", new Guid("0cd45e71-d927-4f15-8b0a-8fef525337bf") },
// { "IApplicationViewCollection", new Guid("1841c6d7-4f9d-42c0-af41-8747538f10e5") },
// { "IApplicationView", new Guid("372e1d3b-38d3-42e4-a15b-8ab2b178f513") },
// { "IVirtualDesktopPinnedApps", new Guid("4ce81583-1e4c-4632-a621-07a53543148f") },
// { "IVirtualDesktop", new Guid("536d3495-b208-4cc9-ae26-de8111275bf8") },
// { "IVirtualDesktopManagerInternal", new Guid("b2f925b9-5a0f-4d2e-9f4d-2b1507593c10") },
// { "IVirtualDesktopNotification", new Guid("cd403e52-deed-4c13-b437-b98380f2b1e8") }
//};

anaisbetts · 2022-02-13T20:47:32Z

@sliddington Which registry settings are missing? They seem to be there on upgraded Windows installs, but not on fresh Win11 installs

sliddington · 2022-02-13T22:48:22Z

@sliddington Which registry settings are missing? They seem to be there on upgraded Windows installs, but not on fresh Win11 installs

All of them seemed to be there, just without their names. I made a build that worked for me (an upgraded install) but then didn't on the offical 22000 build.

The master branch has recently been updated to apparently work for 22000. I haven't check it out yet.

mzomparelli · 2023-08-27T17:44:33Z

It appears that IVirtualDesktopManagerInternal in Win 11 build 22621 has new members. It also appears that IObjectArray GetAllCurrentDesktops(); was removed. Anyone know anything about these remote virtual desktops?

GetCount(uint *)
MoveViewToDesktop(IApplicationView *,IVirtualDesktop *)
CanViewMoveDesktops(IApplicationView *,int *)
GetCurrentDesktop(IVirtualDesktop * *)
GetDesktops(IObjectArray * *)
GetAdjacentDesktop(IVirtualDesktop *,uint,IVirtualDesktop * *)
SwitchDesktop(IVirtualDesktop *)
CreateDesktopW(IVirtualDesktop * *)
MoveDesktop(IVirtualDesktop *,uint)
RemoveDesktop(IVirtualDesktop *,IVirtualDesktop *)
FindDesktop(_GUID const &,IVirtualDesktop * *)
GetDesktopSwitchIncludeExcludeViews(IVirtualDesktop *,IObjectArray * *,IObjectArray * *)
SetDesktopName(IVirtualDesktop *,HSTRING__ *)
SetDesktopWallpaper(IVirtualDesktop *,HSTRING__ *)
UpdateWallpaperPathForAllDesktops(HSTRING__ *)
CopyDesktopState(IApplicationView *,IApplicationView *)
CreateRemoteDesktop(HSTRING__ *,IVirtualDesktop * *)
SwitchRemoteDesktop(IVirtualDesktop *)
SwitchDesktopWithAnimation(IVirtualDesktop *)
GetLastActiveDesktop(IVirtualDesktop * *)
WaitForAnimationToComplete(void)
OnViewAddedInternal(IApplicationView *,IVirtualDesktop *)
OnViewAddedInternal(IApplicationView *)
OnPinnedViewAddedInternal(IApplicationView *)
OnViewRemovedFromSwitchersInternal(IApplicationView *)
OnViewRemovedInternal(IApplicationView *)
SetViewCollectionInternal(IApplicationViewCollection *)
CreateRecoveredDesktopInternal(_GUID const &,IVirtualDesktop * *)
RemoveDesktopForRecoveryInternal(IVirtualDesktop *,IVirtualDesktop *)
SwitchDesktopForRecoveryInternal(IVirtualDesktop *)
ViewVisibilityUpdatedInternal(IApplicationView *)
MoveViewToDesktopNoGroupPropagateInternal(IApplicationView *,IVirtualDesktop *)
SubscribeToWindowMessageService(IImmersiveWindowMessageService *)
SubscribeToVDSoftLandingService(wil::com_ptr_t<IApplicationViewVisibilityDebouncedNotificationService,wil::err_returncode_policy>)
UnsubscribeToVDSoftLandingService(void)
SetRemoteSessionWindowManager(wil::com_ptr_t<Windows::Internal::Shell::IRemoteSessionWindowManager,wil::err_exception_policy> const &)
DelayInitialize(ISwitchThumbnailDeviceManager *,IVirtualDesktopSwitchAnimator *,IImmersiveSettingsCache *,IMultitaskingViewServiceProvider *)
DismissTaskViewInRemote(IVirtualDesktop *)

mzomparelli · 2023-08-27T19:07:36Z

Looks like some changes to IApplicationView as well

SetFocus(void)
SwitchTo(void)
TryInvokeBack(IAsyncCallback *)
GetThumbnailWindow(HWND__ * *)
GetMonitor(IImmersiveMonitor * *)
GetVisibility(int *)
SetCloak(APPLICATION_VIEW_CLOAK_TYPE,int)
GetPosition(_GUID const &,void * *)
SetPosition(IApplicationViewPosition *)
InsertAfterWindow(HWND__ *)
GetExtendedFramePosition(tagRECT *)
GetAppUserModelId(ushort * *)
SetAppUserModelId(ushort const *)
IsEqualByAppUserModelId(ushort const *,int *)
GetViewState(uint *)
SetViewState(uint)
GetNeediness(int *)
GetLastActivationTimestamp(unsigned __int64 *)
SetLastActivationTimestamp(unsigned __int64)
GetVirtualDesktopId(_GUID *)
SetVirtualDesktopId(_GUID const &)
GetShowInSwitchers(int *)
SetShowInSwitchers(int)
GetScaleFactor(uint *)
CanReceiveInput(int *)
GetCompatibilityPolicyType(APPLICATION_VIEW_COMPATIBILITY_POLICY *)
SetCompatibilityPolicyType(APPLICATION_VIEW_COMPATIBILITY_POLICY)
GetPositionerPriority(IShellPositionerPriority * *)
SetPositionerPriority(IShellPositionerPriority *)
GetSizeConstraints(IImmersiveMonitor *,tagSIZE *,tagSIZE *)
GetSizeConstraintsForDpi(uint,tagSIZE *,tagSIZE *)
SetSizeConstraintsForDpi(uint const *,tagSIZE const *,tagSIZE const *)
QuerySizeConstraintsFromApp(void)
OnMinSizePreferencesUpdated(HWND__ *)
ApplyOperation(IApplicationViewOperation *)
IsTray(int *)
IsInHighZOrderBand(int *)
IsSplashScreenPresented(int *)
Flash(void)
GetRootSwitchableOwner(IApplicationView * *)
EnumerateOwnershipTree(IObjectArray * *)
GetEnterpriseId(ushort * *)
GetEnterpriseChromePreference(int *)
IsMirrored(int *)
GetFrameworkViewType(FRAMEWORK_VIEW_TYPE *)
GetCanTab(int *)
SetCanTab(int)
GetIsTabbed(int *)
SetIsTabbed(int)
RefreshCanTab(void)
GetIsOccluded(int *)
SetIsOccluded(int)
UpdateEngagementFlags(VIEW_ENGAGEMENT_FLAGS,VIEW_ENGAGEMENT_FLAGS)
SetForceActiveWindowAppearance(int)
GetLastActivationFILETIME(_FILETIME *)
GetPersistingStateName(ushort * *)
v_SetCloak(APPLICATION_VIEW_CLOAK_TYPE,int)
v_GetNativeWindow(HWND__ * *)
v_RefreshEnterpriseIdIfNeeded(void)
v_GetProcessId(ulong *)

mzomparelli · 2023-08-27T19:23:33Z

The ordering of IVirtualDesktop has changed.

You have them all except your unknown's name is IsRemote and it was moved to the end:

IsViewVisible(IApplicationView *,int *)
GetID(_GUID *)
GetName(HSTRING__ * *)
GetWallpaper(HSTRING__ * *)
IsRemote(int *)

mzomparelli · 2023-08-28T00:30:40Z

So those are not the working interfaces either, but that new stuff is still interesting.

Here are some updated interfaces that do work - Note the GUID changes as well
I'm still having issues with the VirtualDesktopNotifications. I'll report back once I figure it out.

[ComImport]
[Guid("A3175F2D-239C-4BD2-8AA0-EEBA8B0B138E")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
internal interface IVirtualDesktopManagerInternal
{
	int GetCount();

	void MoveViewToDesktop(IApplicationView pView, IVirtualDesktop desktop);

	bool CanViewMoveDesktops(IApplicationView pView);

	IVirtualDesktop GetCurrentDesktop();

	//IObjectArray GetAllCurrentDesktops();

	IObjectArray GetDesktops();

	IVirtualDesktop GetAdjacentDesktop(IVirtualDesktop pDesktopReference, int uDirection);

	void SwitchDesktop(IVirtualDesktop desktop);

	IVirtualDesktop CreateDesktopW();

	void MoveDesktop(IVirtualDesktop desktop, int nIndex);

	void RemoveDesktop(IVirtualDesktop pRemove, IVirtualDesktop pFallbackDesktop);

	IVirtualDesktop FindDesktop(in Guid desktopId);

	void GetDesktopSwitchIncludeExcludeViews(IVirtualDesktop desktop, out IObjectArray o1, out IObjectArray o2);

	void SetDesktopName(IVirtualDesktop desktop, [MarshalAs(UnmanagedType.HString)] string name);

	void SetDesktopWallpaper(IVirtualDesktop desktop, [MarshalAs(UnmanagedType.HString)] string path);

	void UpdateWallpaperPathForAllDesktops([MarshalAs(UnmanagedType.HString)] string path);

	void CopyDesktopState(IApplicationView pView0, IApplicationView pView1);

}

[ComImport]
[Guid("372e1d3b-38d3-42e4-a15b-8ab2b178f513")]
[InterfaceType(ComInterfaceType.InterfaceIsIInspectable)]
public interface IApplicationView
{

	void GetIids(out ulong iidCount, out IntPtr iids);

	void GetRuntimeClassName([MarshalAs(UnmanagedType.HString)] out string className);

	void GetTrustLevel(out IntPtr trustLevel);

	void SetFocus();

	void SwitchTo();

    void TryInvokeBack(ref IntPtr /* IAsyncCallback* */ callback);

    void GetThumbnailWindow(out IntPtr hwnd);

    void GetMonitor(out IntPtr /* IImmersiveMonitor */ immersiveMonitor);

    void GetVisibility(out int visibility);

	void SetCloak(APPLICATION_VIEW_CLOAK_TYPE cloakType, int unknown);

	void GetPosition(ref Guid guid /* GUID for IApplicationViewPosition */, out IntPtr /* IApplicationViewPosition** */ position);

	void SetPosition(ref IntPtr /* IApplicationViewPosition* */ position);

	void InsertAfterWindow(IntPtr hwnd);

	void GetExtendedFramePosition(out Rect rect);

    void GetAppUserModelId([MarshalAs(UnmanagedType.LPWStr)] out string id);

    void SetAppUserModelId(string id);

    void IsEqualByAppUserModelId(string id, out int result);

    void GetViewState(out int state);

    void SetViewState(int state);

    void GetNeediness(out int neediness);

    void GetLastActivationTimestamp(out long timestamp);

    void SetLastActivationTimestamp(long timestamp);

    void GetVirtualDesktopId(out Guid guid);

    void SetVirtualDesktopId(ref Guid guid);

    void GetShowInSwitchers(out int flag);

    void SetShowInSwitchers(int flag);

    void GetScaleFactor(out int factor);

    void CanReceiveInput(out bool canReceiveInput);

    void GetCompatibilityPolicyType(out APPLICATION_VIEW_COMPATIBILITY_POLICY flags);

    void SetCompatibilityPolicyType(APPLICATION_VIEW_COMPATIBILITY_POLICY flags);


    void GetSizeConstraints(IntPtr /* IImmersiveMonitor* */ monitor, out Size size1, out Size size2);

    void GetSizeConstraintsForDpi(int uint1, out Size size1, out Size size2);

    void SetSizeConstraintsForDpi(ref int uint1, ref Size size1, ref Size size2);


    void OnMinSizePreferencesUpdated(IntPtr hwnd);

    void ApplyOperation(ref IntPtr /* IApplicationViewOperation* */ operation);

    void IsTray(out bool isTray);

    void IsInHighZOrderBand(out bool isInHighZOrderBand);

    void IsSplashScreenPresented(out bool isSplashScreenPresented);

    void Flash();

    void GetRootSwitchableOwner(out IApplicationView rootSwitchableOwner);

    void EnumerateOwnershipTree(out IObjectArray ownershipTree);

    void GetEnterpriseId([MarshalAs(UnmanagedType.LPWStr)] out string enterpriseId);

    void IsMirrored(out bool isMirrored);

	void Unknown1(out int unknown); //22621
    void Unknown2(out int unknown); //22621
    void Unknown3(out int unknown); //22621
    void Unknown4(int unknown); //22621
    void Unknown5(out int unknown); //22621
    void Unknown6(int unknown); //22621
    void Unknown7(); //22621
    void Unknown8(out int unknown); //22621
    void Unknown9(int unknown); //22621
    void Unknown10(int unknown, int int2); //22621
    void Unknown11(int unknown); //22621
    void Unknown12(out Size unknown); //22621

}

[ComImport]
[Guid("3F07F4BE-B107-441A-AF0F-39D82529072C")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IVirtualDesktop
{
    bool IsViewVisible(IApplicationView view);

    Guid GetID();

    void GetName([MarshalAs(UnmanagedType.HString)] out string name);

    void GetWallpaperPath([MarshalAs(UnmanagedType.HString)] out string name);

}

[ComImport]
[Guid("B287FA1C-7771-471A-A2DF-9B6B21F0D675")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IVirtualDesktopNotification
{
    void VirtualDesktopCreated(IObjectArray p1, IVirtualDesktop pDesktop);

    void VirtualDesktopDestroyBegin(IObjectArray p1, IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    void VirtualDesktopDestroyFailed(IObjectArray p1, IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    void VirtualDesktopDestroyed(IObjectArray p1, IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

   // void Unknown2(int i);

    void VirtualDesktopMoved(IObjectArray p1, IVirtualDesktop pDesktop, int nIndexFrom, int nIndexTo);

    void VirtualDesktopRenamed(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string name);

    void ViewVirtualDesktopChanged(IntPtr pView);

    void CurrentVirtualDesktopChanged(IObjectArray p1, IVirtualDesktop pDesktopOld, IVirtualDesktop pDesktopNew);

    void VirtualDesktopWallpaperChanged(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string path);
}

mzomparelli · 2023-08-28T01:14:32Z

I'm pretty sure IVirtualDesktopNotification has two new members as I see them in the dll when I view in IDA. However, I still cannot get the notifications to work. Let me know if you guys figure it out.

[ComImport]
[Guid("B287FA1C-7771-471A-A2DF-9B6B21F0D675")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IVirtualDesktopNotification
{
    void VirtualDesktopCreated(IObjectArray p1, IVirtualDesktop pDesktop);

    void VirtualDesktopDestroyBegin(IObjectArray p1, IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    void VirtualDesktopDestroyFailed(IObjectArray p1, IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    void VirtualDesktopDestroyed(IObjectArray p1, IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    //void Unknown2(int i);

    void VirtualDesktopMoved(IObjectArray p1, IVirtualDesktop pDesktop, int nIndexFrom, int nIndexTo);

    void VirtualDesktopRenamed(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string name);

    void ViewVirtualDesktopChanged(IntPtr pView);

    void CurrentVirtualDesktopChanged(IObjectArray p1, IVirtualDesktop pDesktopOld, IVirtualDesktop pDesktopNew);

    void VirtualDesktopWallpaperChanged(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string path);

    IVirtualDesktop VirtualDesktopSwitched();

    IVirtualDesktop RemoteVirtualDesktopConnected();

}

mzomparelli · 2023-08-28T04:22:24Z

I'm so dumb. I forgot to remove the monitor stuff from the notification interface. Thise object arrays are gone now. Here is the updated interface:

[ComImport]
[Guid("B287FA1C-7771-471A-A2DF-9B6B21F0D675")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IVirtualDesktopNotification
{
    void VirtualDesktopCreated(IVirtualDesktop pDesktop);

    void VirtualDesktopDestroyBegin(IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    void VirtualDesktopDestroyFailed(IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    void VirtualDesktopDestroyed(IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);

    //void Unknown2(int i);

    void VirtualDesktopMoved(IVirtualDesktop pDesktop, int nIndexFrom, int nIndexTo);

    void VirtualDesktopRenamed(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string name);

    void ViewVirtualDesktopChanged(IntPtr pView);

    void CurrentVirtualDesktopChanged(IVirtualDesktop pDesktopOld, IVirtualDesktop pDesktopNew);

    void VirtualDesktopWallpaperChanged(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string path);

    IVirtualDesktop VirtualDesktopSwitched();

    IVirtualDesktop RemoteVirtualDesktopConnected();

}

mzomparelli · 2023-08-28T06:02:10Z

I took the liberty to match the interface to what I see in the DLL twinui.pcshell.dll. This fills in all those unknowns we had as well as adds more. I have not tested that these names are the correct names, only that they match up to the DLL and that it compiles and runs on build 22621. It would be nice if someone would test these news ones to see what they do. Specifically the ones that mention remote.

[ComImport]
[Guid("372e1d3b-38d3-42e4-a15b-8ab2b178f513")]
[InterfaceType(ComInterfaceType.InterfaceIsIInspectable)]
public interface IApplicationView
{
	void SetFocus();
	void SwitchTo();
    void TryInvokeBack(ref IntPtr /* IAsyncCallback* */ callback);
    void GetThumbnailWindow(out IntPtr hwnd);
    void GetMonitor(out IntPtr /* IImmersiveMonitor */ immersiveMonitor);
    void GetVisibility(out int visibility);
	void SetCloak(APPLICATION_VIEW_CLOAK_TYPE cloakType, int unknown);
	void GetPosition(ref Guid guid /* GUID for IApplicationViewPosition */, out IntPtr /* IApplicationViewPosition** */ position);
	void SetPosition(ref IntPtr /* IApplicationViewPosition* */ position);
	void InsertAfterWindow(IntPtr hwnd);
	void GetExtendedFramePosition(out Rect rect);
    void GetAppUserModelId([MarshalAs(UnmanagedType.LPWStr)] out string id);
    void SetAppUserModelId(string id);
    void IsEqualByAppUserModelId(string id, out int result);
    void GetViewState(out int state);
    void SetViewState(int state);
    void GetNeediness(out int neediness);
    void GetLastActivationTimestamp(out long timestamp);
    void SetLastActivationTimestamp(long timestamp);
    void GetVirtualDesktopId(out Guid guid);
    void SetVirtualDesktopId(ref Guid guid);
    void GetShowInSwitchers(out int flag);
    void SetShowInSwitchers(int flag);
    void GetScaleFactor(out int factor);
    void CanReceiveInput(out bool canReceiveInput);
    void GetCompatibilityPolicyType(out APPLICATION_VIEW_COMPATIBILITY_POLICY flags);
    void SetCompatibilityPolicyType(APPLICATION_VIEW_COMPATIBILITY_POLICY flags);
    void GetSizeConstraints(IntPtr /* IImmersiveMonitor* */ monitor, out Size size1, out Size size2);
    void GetSizeConstraintsForDpi(int uint1, out Size size1, out Size size2);
    void SetSizeConstraintsForDpi(ref int uint1, ref Size size1, ref Size size2);
    void OnMinSizePreferencesUpdated(IntPtr hwnd);
    void ApplyOperation(ref IntPtr /* IApplicationViewOperation* */ operation);
    void IsTray(out bool isTray);
    void IsInHighZOrderBand(out bool isInHighZOrderBand);
    void IsSplashScreenPresented(out bool isSplashScreenPresented);
    void Flash();
    void GetRootSwitchableOwner(out IApplicationView rootSwitchableOwner);
    void EnumerateOwnershipTree(out IObjectArray ownershipTree);
    void GetEnterpriseId([MarshalAs(UnmanagedType.LPWStr)] out string enterpriseId);
    void GetEnterpriseChromePreference(out int unknown);
    void IsMirrored(out bool isMirrored);
    void GetFrameworkViewType(out int /*FRAMEWORK_VIEW_TYPE*/ unknown);
    void GetCanTab(out int unknown);
    void SetCanTab(int unknown);
    void GetIsTabbed(out int unknown);
    void SetIsTabbed(int unknown);
    void RefreshCanTab();
    void GetIsOccluded(out int unknown);
    void SetIsOccluded(int unknown);
    void UpdateEngagementFlags(int /*VIEW_ENGAGEMENT_FLAGS*/ unknown, int /*VIEW_ENGAGEMENT_FLAGS*/ int2);
    void SetForceActiveWindowAppearance(int unknown);
    void GetLastActivationFILETIME(FILETIME timestamp);
    void GetPersistingStateName([MarshalAs(UnmanagedType.LPWStr)] out string name);
    void v_SetCloak(APPLICATION_VIEW_CLOAK_TYPE cloakType, int unknown);
    void v_RefreshEnterpriseIdIfNeeded();
    void v_GetProcessId(out ulong processId);
	
}

[ComImport]
[Guid("3F07F4BE-B107-441A-AF0F-39D82529072C")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IVirtualDesktop
{
    bool IsViewVisible(IApplicationView view);
    Guid GetID();
    void GetName([MarshalAs(UnmanagedType.HString)] out string name);
    void GetWallpaperPath([MarshalAs(UnmanagedType.HString)] out string name);
    void IsRemote(out bool isRemote);
}


[ComImport]
[Guid("A3175F2D-239C-4BD2-8AA0-EEBA8B0B138E")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
internal interface IVirtualDesktopManagerInternal
{
	int GetCount();
	void MoveViewToDesktop(IApplicationView pView, IVirtualDesktop desktop);
	bool CanViewMoveDesktops(IApplicationView pView);
	IVirtualDesktop GetCurrentDesktop();
	//IObjectArray GetAllCurrentDesktops();
	IObjectArray GetDesktops();
	IVirtualDesktop GetAdjacentDesktop(IVirtualDesktop pDesktopReference, int uDirection);
	void SwitchDesktop(IVirtualDesktop desktop);
	IVirtualDesktop CreateDesktopW();
	void MoveDesktop(IVirtualDesktop desktop, int nIndex);
	void RemoveDesktop(IVirtualDesktop pRemove, IVirtualDesktop pFallbackDesktop);
	IVirtualDesktop FindDesktop(in Guid desktopId);
	void GetDesktopSwitchIncludeExcludeViews(IVirtualDesktop desktop, out IObjectArray o1, out IObjectArray o2);
	void SetDesktopName(IVirtualDesktop desktop, [MarshalAs(UnmanagedType.HString)] string name);
	void SetDesktopWallpaper(IVirtualDesktop desktop, [MarshalAs(UnmanagedType.HString)] string path);
	void UpdateWallpaperPathForAllDesktops([MarshalAs(UnmanagedType.HString)] string path);
	void CopyDesktopState(IApplicationView pView0, IApplicationView pView1);
    IVirtualDesktop CreateRemoteDesktop([MarshalAs(UnmanagedType.HString)] string name);
    void SwitchRemoteDesktop(IVirtualDesktop desktop);
    void SwitchDesktopWithAnimation(IVirtualDesktop desktop);
    IVirtualDesktop GetLastActiveDesktop();
    void WaitForAnimationToComplete();
}

[ComImport]
[Guid("B287FA1C-7771-471A-A2DF-9B6B21F0D675")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IVirtualDesktopNotification
{
    void VirtualDesktopCreated(IVirtualDesktop pDesktop);
    void VirtualDesktopDestroyBegin(IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);
    void VirtualDesktopDestroyFailed(IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);
    void VirtualDesktopDestroyed(IVirtualDesktop pDesktopDestroyed, IVirtualDesktop pDesktopFallback);
    void VirtualDesktopMoved(IVirtualDesktop pDesktop, int nIndexFrom, int nIndexTo);
    void VirtualDesktopRenamed(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string name);
    void ViewVirtualDesktopChanged(IntPtr pView);
    void CurrentVirtualDesktopChanged(IVirtualDesktop pDesktopOld, IVirtualDesktop pDesktopNew);
    void VirtualDesktopWallpaperChanged(IVirtualDesktop pDesktop, [MarshalAs(UnmanagedType.HString)] string path);
    IVirtualDesktop VirtualDesktopSwitched();
    IVirtualDesktop RemoteVirtualDesktopConnected();
}

mzomparelli · 2023-08-28T07:04:34Z

This handy python script will mean we are never in this predicament again

https://github.com/t1m0thyj/GetVirtualDesktopAPI_DIA

Slion · 2023-08-28T08:25:42Z

This handy python script will mean we are never in this predicament again

https://github.com/t1m0thyj/GetVirtualDesktopAPI_DIA

@mzomparelli
That looks most interresting. Feel free to contribute to: https://github.com/Slion/VirtualDesktop.
I just started publishing NuGet packages off that branch since @Grabacr07 as been MIA for a while.
What does DIA stands for? Would be great if we could thoroughly document the whole reverse engineering process.

Related to Grabacr07#76

sliddington · 2023-08-28T09:42:40Z

Re: #1 (comment)
My guess ... either related to "Azure Virtual Desktop" but I think that is effectively just a fancy name for a virtual machine.
Or something like you can connect an RDP session to a virtual desktop on an already running machine?

mzomparelli · 2023-08-28T14:52:19Z

This handy python script will mean we are never in this predicament again
https://github.com/t1m0thyj/GetVirtualDesktopAPI_DIA

What does DIA stands for?

Debug Interface Access, the dll is part of the 2005 C++ Redistributable.

The method the python used is basically the same I did with IDA Free. I wish I would have found the script first.

mzomparelli · 2023-08-28T15:03:18Z

If you are interested you can check out my application for virtual desktops and hotkeys. One thing I really like is he DesktopView which is a replacement for TaskView. - https://zvirtualdesktop.com/

I really need to get started on a v2 that uses a more modern forms like WPF.

mzomparelli · 2023-08-28T15:57:07Z

Re: #1 (comment) My guess ... either related to "Azure Virtual Desktop" but I think that is effectively just a fancy name for a virtual machine. Or something like you can connect an RDP session to a virtual desktop on an already running machine?

Sounds like something I could use if it works with remote desktop.

mzomparelli · 2023-08-29T20:36:57Z

If anyone wants, I have the interfaces for Windows Server 2022.

Dexterously · 2023-08-29T21:14:18Z

If you are interested you can check out my application for virtual desktops and hotkeys. One thing I really like is he DesktopView which is a replacement for TaskView. - https://zvirtualdesktop.com/

I really need to get started on a v2 that uses a more modern forms like WPF.

Which library are you using to support Windows 11 Insider?

mzomparelli · 2023-08-29T21:21:46Z

I think Win11 insider is the same as Win11 22H2 but I don't have insider to test. I'll work on setting up a VM to test it.

mzomparelli · 2023-08-29T21:38:00Z

There are three insider channels. The beta channel appears to be the same build as 22H2.
I guess I'll try the other two.

Dexterously · 2023-08-29T22:51:38Z

There are three insider channels. The beta channel appears to be the same build as 22H2. I guess I'll try the other two.

My machine installed KB5029351 update and this codebase no longer works. Any thoughts?

mzomparelli · 2023-08-30T01:52:10Z

Run WinVer and tell me what build you have

Dexterously · 2023-08-30T03:00:33Z

Run WinVer and tell me what build you have

22621.2215

mzomparelli · 2023-08-30T04:21:01Z

that is not an insider build anymore, it's 22H2. You can use the interfaces I provided above for that build. zVirtualDesktop will work with your build.

Slion · 2023-08-30T05:24:29Z

@Dexterously Try my fork:
https://github.com/Slion/VirtualDesktop

It's not working on Insider builds but does work with the latest official Win11.

Slion · 2023-08-30T05:27:59Z

If anyone wants, I have the interfaces for Windows Server 2022.

It would be fantastic if you could contribute them to: https://github.com/Slion/VirtualDesktop

Dexterously · 2023-08-30T05:57:10Z

@Dexterously Try my fork: https://github.com/Slion/VirtualDesktop

It's not working on Insider builds but does work with the latest official Win11.

The problem I have is that it starting throwing this error today.

I just assumed that it was no longer supported:

I get these errors running this branch as of right now: https://github.com/Slion/VirtualDesktop

Slion · 2023-08-30T08:56:03Z

I'm on 22621.2134 and it seems to be working there. Can you confirm yours is an insider build?

Just did the August update. I'm now on 22621.2215 and it is indeed broken again.

mzomparelli · 2023-08-30T14:34:56Z

22621.2215 is not an insider build and the interface I posted in this thread work for it. I'm running 22H2 22621.2215 and I'm not running an insider build. I'm just on the normal user build.

mzomparelli · 2023-08-30T14:37:30Z

If anyone wants, I have the interfaces for Windows Server 2022.

It would be fantastic if you could contribute them to: https://github.com/Slion/VirtualDesktop

Let me get my crap together and I'll go check out your repo and see if I can add to it.

mzomparelli · 2023-08-30T14:38:48Z

@Dexterously Try my fork: https://github.com/Slion/VirtualDesktop
It's not working on Insider builds but does work with the latest official Win11.

The problem I have is that it starting throwing this error today.

I just assumed that it was no longer supported:

I get these errors running this branch as of right now: https://github.com/Slion/VirtualDesktop

Get more info on this. Which one is throwing the error? It only takes one of the interfaces to be wrong.

mzomparelli · 2023-08-30T14:40:33Z

Seems there might be something different between the 22621.2215 builds for insider versus non-insider. A build should be a build though, right?

mzomparelli · 2023-08-30T14:45:59Z

can someone send me the twinui.pcshell.dll from that insider build. If you can't attach here then send to [email protected]

mzomparelli · 2023-08-30T15:18:47Z

can someone send me the twinui.pcshell.dll from that insider build. If you can't attach here then send to [email protected]

No need for that. I'm installing in Hyper-V. I'll test the other insider builds too.

Slion · 2023-08-30T15:40:11Z

Get more info on this. Which one is throwing the error? It only takes one of the interfaces to be wrong.

VirtualDesktopManagerInternal

Slion · 2023-08-30T15:41:45Z

Seems there might be something different between the 22621.2215 builds for insider versus non-insider. A build should be a build though, right?

22621.2215 is no insider build. It's just 22H2 August 2023 update.

Dexterously · 2023-08-30T15:41:46Z

I'll get more information today. However, I am NOT running an insider build. This just started yesterday.

Slion · 2023-08-30T15:54:10Z

I've opened the following ticket to track progress on that 22621.2215 issue:
Slion#1

Add support for 22449 & correct naming

7d34726

NyaMisty force-pushed the develop branch from aa23b98 to 7d34726 Compare September 17, 2021 00:43

NyaMisty mentioned this pull request Sep 17, 2021

Add support for the latest Windows 10 build Grabacr07/VirtualDesktop#57

Open

MScholtes mentioned this pull request Apr 21, 2022

Broken on Win11 build 22581 MScholtes/VirtualDesktop#35

Closed

Slion mentioned this pull request Apr 21, 2022

Crash when calling VirtualDesktop.Current.Id on latest Windows 11 Insider build Grabacr07/VirtualDesktop#74

Open

Leo40Git mentioned this pull request Jun 3, 2022

Windows 11 22H2 - Exception when calling get_virtual_desktops mrob95/pyvda#15

Closed

FuPeiJiang mentioned this pull request Jul 1, 2022

Is it possible to have a function registered to run whenever the virtual desktop changes? FuPeiJiang/VD.ahk#14

Closed

sliddington mentioned this pull request Aug 22, 2023

Not working with Windows 11 22H2 ? Grabacr07/VirtualDesktop#76

Open

Add support for 22449 & correct naming #1

Are you sure you want to change the base?

Add support for 22449 & correct naming #1

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