Answer Questions

• JohnmanCarl DX10 videocard drivers for vista?

  hello everyone, is there any possibility for videocard manufacturers to develop drivers for vista with DX10 compatiblity after the release of vista Dec CTP Thank You grazie ...Show All

• Daticus Using HandleExternalEventActivity to communicate from state machine workflow to asp.net host doesn't appear to work reliably

  Dear all, I have a state machine workflow hosted under asp.net 2.0, using SimpleReadWriteActivities and LocalServiceContract from the HelpDeskSupport sample app. This uses static lists to keep track of data pipes, but has no mechanism for cleaning these up. I have added this capability, in order to get consistent behaviour after a re-start of the host web site. Everything works fine unless I return to a state which has already been executed once, and execute it again. The state concerned has an EventDrivenActivity which contains a ReceiveDataFromHost activity, derived from HandleExternalEventActivity. When the ReceiveDataFromHost activity gets called the second time, I get an exception with message: Correlation value on declara ...Show All

• Skippy1313 GetVersionEx weirdness on Vista. Please help

  I am calling GetVersionEx to get the windows version. I am using code sample provided at http://www.codeproject.com/win32/osdetect.asp . On WindowsXP it correctly returns 5 as the major version. But on Windows Vista, it returns 5 again instead of 6. Has anyone see this issue or any ideas why GetVersionEx returns incorrect value on Vista So far I have tried compiling with different settings of _WIN32_WINNT, reinstalled Vista just to be sure, tried to run this on a different Vista system with the same incorrect result. I also tried GetVersion instead of GetVersionEx too without success. Should I check for some registry keys or something I am stuck on this for more than a day now. Appreciate any help. Thanks. ...Show All

• sawer This workflow is not owned by the WorkflowRuntime.

  Hi, I've got a sequential workflow that occasionally starts throwing the above exception. The app works its way through all the activities successfully creating the "executing" record for the HandleExternalEvent activities up to and including the last one, then fails (regardless of which one is last) and then starts cancelling and closing the activities. I've disabled the "last" activity and it just fails on the next to last (now the last activity). I'm adding the Persistance service with the following: Dim owr As Object = HttpContext.Current.Cache(_WFName) ' Cache is per AppDomain If owr Is Nothing Then System.Threading.Monitor.Enter(_sync) owr = HttpContext.Current.Cache(_WFName) ...Show All

• BigBoom Adding a service after workflow starts

  Is it possible to add the tracking or persistence service after the workflow has already started running How would you do this I believe all I need to do is get the running workflow instance and then do AddService, but that might need to be done prior to the workflow starting. Thanks! No, Persistence and Tracking services can only be to the WorkflowRuntime when it is not started. For more information take a look at the Remarks section of the AddService method found here . ...Show All

• ShAdeVampirE HELP: Adjusting/Controlling Attenuation (Volume) Level

  I need help guys ... How can i adjust the volume of the audio playout in real time For e.g Left Channel Right Channel 50% 50% 30% 30% 0% 0% 30% 0% 0% 30% i really need this program, good if there's an article of it or a source code or at least steps that where can i get this achive. note that im using simple audio playout using directshow that make use of the Quartz.dll thank you in advance You should have looked into the directshow.net link above. There is an example of Ibasicaudio for C# here http://directshownet.cvs.sourceforge.net/directshownet/directshowlib/Test/v1.0/IBasicAudioTest.cs view=markup Hey, thanks sooo much, so what shoul ...Show All

• V1ad Getting an overview of a Dynamic format change and it's application to a filter derived from CTransformFilter

  Hi I'm trying to do a transform filter derived from CTransformFilter. It does everything should be doing except handling dynamic format changes like when used in a DVD graph with a codec that defaults to 720x480 and then switches to 720x576. As a renderer i use VMR9 in YUV mixing mode and my transform filter doesn't not have any preference towards the YUV format for now. So the goal of the filter would be to have anything relating to the format handling working exactly as if no transform filter was in between and thus letting the codec and VMR9 workout the connection and simply having the transform jacked in between. For performance reasons i choose not to go with CTransInPlace filter. So what I need are some pointers on how ...Show All

• harlequinben Filtering activities before insertion; ActivityValidator question

  Hi! I have 2 questions actually: I am hosting the designer in my app with a custom root activity as the root designer. This root activity can have child activities where exactly 1 child can be of the type StartActivity (also a custom activity) and several childs can be EndActivity. I overrid InsertActivities of the designer to check wheter there is already a StartActivity. If there is, I give a list of activities to the base.InsertActivities where I filtered out the new StartActivity which is about to be inserted. This works well for Drag&Drop operations from the Toolbox, I get my message as expected and the 2nd StartActivity is not inserted. However if I copy (using Copy&Paste) a 2nd StartActivity, my message pops u ...Show All

• Tridex Need to determine writability of a file without virtualization kicking in

  I have an application that needs to determine if a set of files is writable before taking action. On Windows XP, I accomplished this by opening the files for writing and checking for a permission failure. This does not work on Windows Vista, because Vista will virtualize the file rather than reporting a permission failure. I cannot solve this problem using an application manifest, because my code is running in an ODBC driver, and I have no control over the client application that may be calling into me. Anyone know how to figure out the "real" permissions for a File, or to disable virtualization for a particular call into the file API ...Show All

• RWF Subscription service and persistence service

  I've implemented a custom subscription service that inherits from WorkflowSubscriptionService. I have a state machine workflow that's been published as a web service. In my workflow I have a CallExternalMethod activity that sends an e-mail message, and a HandleExternalMethod activity that listens for incoming e-mail. I'm using my subscription service to get the WorkflowInstanceId based on a message ID that I embed in the e-mail message. I've tested this and traced my workflow and everything works. When my workflow sends out the e-mail, it calls CreateSubscription on the subscription service. When the event is received, it calls DeleteSubscription. This would seem to be the correct behaviour. Then I added the SQL persistence service a ...Show All

• Santosh_DotNet Reading the registry on Vista?

  Hi all, I'm trying to read a key from the registry on Windows Vista (Beta 2) from my C# program. It works fine on win XP and I know Windows Vista implements a lot of registry virtualisation and such. Should this prevent me reading from the registry though No write operation is being performed - I'm simply trying to find the location of the windows task scheduler logPath (HKLM\Software\Microsoft\SchedulingAgent\LogPath) All help appreciated! Henri Thanks for getting back to me Chris, I'm now using this code - which doesn't work. // Request read permission for the SchedulingAgent key (Vista Compatibility) RegistryPermission keyPermissions = new RegistryPermission( RegistryPermission ...Show All

• TimmyG15 Error 0x8004D00E on SQL Server 2000 + Windows 2000 SP4

  We have an ASP.NET application running on Windows Server 2003 whose database backend lives in a different machine which runs SQL Server 2000 and Windows 2000 Server SP4. Whenever we try to use System.Transactions we get errors. We are almost sure that the problem is related to MSDTC refusing network connections. We tried to run the same thing using Windows Server 2003 in the backend server, and we were able to make it work by configuring MSDTC security using the COM+ console. However, we still need to support Windows 2000 for the backend. There is apparently no GUI for MSDTC security on Windows 2000, and the registry settings we have tried so far did not work. We think this should be a very common issue, but we have ...Show All

• lbc06 New in Windows workflow:) please help me :):)

  i have installed visual studio 2005 team suite,where windows foundation workflow is included. i have download some example from msdn which is "SimpleSequentialWorkflow: i have opened the project in the visual studio. but i dont know how to run this.or how to deploy this in any server.i am new in workflow. plz help me , how i deploy or run workflow application. download http://www.microsoft.com/downloads/details.aspx FamilyId=5DF74E3B-FB51-4A94-A11D-DFF70288A8BB&displaylang=en and try to run execute these alternativly learn more about WF on online virtual labs Hi, are there any other tutorials Regards Marcus The ones above are for Beta. We have r ...Show All

• Bryan Stone WF Dynamic Update - Advanced scenarios

  When using dynamic update, I have noticed that: - If I remove an activity that is already executed then the removal request is ignored - If I remove an activity that is currently running then the removal request is ignored I was expecting so! BUT could you please guide me on how to force the removal of the Currently Running activity and may be rollback 'any damage' done so far Also for an already completed activity how can I 'reverse back', 'undo the activity execution effects', 'remove unwanted activity' and continue exection (as if the removed activity never existed). Thanks Karim If you need to 'undo' work - I suggest you look at the CompensatableSequenceActivity and compensation ...Show All

• moveit CreateEvent Fails with Access Denied when Events with the Same Name from Different Applications.

  CreateEvent Fails with Access Denied when Events with the Same Name from Different Applications. So I tried to use my CreateEvent functions without name and it works. So why should I even bother to use a name I will Create Events without name from now on not to come across with this annoying problem again. CreateEvent(NULL, FALSE , FALSE, NULL );//auto reset event Is that a question, or a statement Take a look in MSDN: If lpName matches the name of an existing named event object, this function requests the EVENT_ALL_ACCESS access right. In this case, the bManualReset and bInitialState parameters are ignored because they have already been set by the creating process. If the lpEventAttributes parameter is not NULL, it ...Show All