Answer Questions

• Speedy200 SampleGrabber not working with NullRenderer

  Hi DirectShow forum, I am using RenderFile -> SampleGrabber with good success, but I wish to get frames without showing the file being played, so I have tried FileSourceFilter -> SampleGrabber -> NullRenderer, but when I add the NullRenderer the SampleGrabber can not detect any connected media type! Is there any suggestion Thank you! wtrn How about just leaving the output pin on the ...Show All

• Sami Zaghloul password vulnerability in Vista

  Rainbow crackers are currently having their way with Windows LM and NTLM passwords, even in cases where the password is 8 chars long and composed of the standard ASCI alphanumeric character set ( http://www.rainbowcrack-online.com/ x=ntlm ). The situation appears to be getting getting worse ( http://www.plain-text.info/ ). From my naive explorations it seems this is largely because, unlike UNIX variants, a salt is not used when generating the pa ...Show All

• Kiranvukkadala WorflowCompiler, rules and parameters

  1. Let's say I have a .xoml workflow definition which references a .rules file. If I compile it in runtime using the WorkflowCompiler, will the WorkflowCompiler include the rules in the generated workflow class 2. If this workflow definition includes a couple of input parameters, will the WorkflowCompiler generate the appropriate properties in the workflow class, so the rules I defined in .rules file will be able to use their values 3. Is ...Show All

• Quattrus Problem serializing base classes on activities.

  Hello. I have an app that embeds the WWF designer on it, and some CustomActivities. One of those activities has a property whose type is a base class, and I set on it a derived type when I'm designing the workflow. But when I'm trying to save the workflow (with the WorkflowMarkupSerializer), I get the following exception: The type "MyType" was not expected.    Use the XmlInclude or SoapInclude attribute to specify t ...Show All

• PaulRyan SqlWorkflowPersistenceService: Exception thrown while persisting instance: The transaction has already been implicitly or explic

  Hi, I use SqlPersistenceService. I found that SqlPersistenceService has bug, it does not write values to ownerId and ownedUntil colums in instanceState table (SqlPersistenceDatabase). The problem was in constructor, the connection with parameters was broken so I changed the constructor to this NameValueCollection stateServiceSettings = new NameValueCollection (); stateServiceSettings[ "OwnershipTimeoutSeconds" ] = "10&q ...Show All

• Slowpoison Application Compatibility Utility, AppVerifier for Vista

  Does anyone know when Application Compatibility Utility, AppVerifier for Vista will be available If its available now in beta, anybody know where I can get it Thanks! ...Show All

• bigmanu Problem Downloading and Burning Windows Vista Beta 2 (64-bit)

  Note* this only happens when I try to download the 64-bit version. I attempt to download the ISO file, but end up downloading a 14mb ISO that contains nothing except a README.TXT file, and when I burn it to a cd (nero won't let me burn to a dvd for some strange reason) it says that 4.01 gigabytes are used on the cd. When I try to boot from it, it seems to load fine but gives an error: -------------------------------------------------- ...Show All

• colinmit Composite Activity

  Hello I am looking at implementing a composite activity (similar to a CAG but with fixed conditions), but cannot find any examples/documentation of how to cause the child activities to Execute, i.e. I cannot work out what part of the API allows me to get Execute to be called on a given child. Can anyone point me in the right direction I am quite prepared for the answer to this to be staring me in the face so apologies if this is a foolish ...Show All

• PeterTheHorrible How to Mute the system audio, not AP only for Vista?

  Audio mixer functions can't be used for Vista.Is any way to mute the system I try to use "MMDevice API" and "DeviceTopology API", but it's no use. Could anyone tell me how to do it Thank you! ...Show All

• kolja2005 Hosting the workflow designer outside of VS.

  I've read some material that says this is possible, but I haven't found any documentation as to how this is accomplished.  There was a topic along these lines in MSDN, but it said content was not yet available.  Has anyone done this yet   How's it done   Was it much effort   I want to provide a friendly version of this designer to business people in a custom app. Thanks! At the b ...Show All

• Horus_Kol Workflow Designer Rules Support

  Hi, I'm in the process of trying to setup a demonstration application which shows an example of workflow and rules management. I need to basically setup a workflow, set some properties, then run the workflow from the designer. Part of this demo include the use of an IfElse activity and a Policy activity which link with the rules engine portions. I've trundled through the examples and the current samples get things about 75% of the way there, an ...Show All

• Dan Burnip How to go 'backwards' in a sequential workflow?

  Hello I am planning on using a sequential workflow to drive a wizard-style form interface with [next] and [previous] buttons. Most (all ) examples of sequential workflows I've seen show the flow proceeding from the start to the finish. My requirements are that the user is able to click the [previous] button at any time and be moved to the previous activity in his/her workflow. E.g. Say I have a flow like this: A / \ B ...Show All

• Joppe Pelarn WorkflowInstance.GetWorkflowDefinition and running instance

  Hello, As it was mentionen in earlier posts in this forum, WorkflowInstance.GetWorkflowDefinition returns meta data information of the worklfow. That is to say workflow property values updated during runtime would not be included in the returned Activity instance. I would like to ask you how would it be possible to get the exact copy of a running workflow instance from the host application (including values set to activity properties at ru ...Show All

• Robert Collins AvgTimePerFrame always 0?

  Hello all. Can anybody help me what im do wrong VIDEOINFOHEADER field AvgTimePerFrame always equal 0 ;( Here code: IEnumPins* locEnumPins = NULL; HRESULT locHR = m_Bf->EnumPins(&locEnumPins); if (locHR == S_OK) { IPin* locPin = NULL; ULONG locHowMany = 0; locHR = locEnumPins->Next(1, &locPin, &locHowMany); if (locHR == S_OK) { AM_MEDIA_TYPE locMediaType; locHR = locPin->Connectio ...Show All

• Phil Doucette Random reboots with 5270

  When I first installed, it worked fine for a while, then I started having random reboots, I turned off Restart from System but that did not help, I would like to get to the dump file to see if that has a clue, but I cannot find the minidump folder even though I set Search to not hide system folders. My setup is multiboot with Windows XP and Server 2003 on seperate partitions. I don't have these random reboots with XP or server. Thanks for any he ...Show All