Answer Questions

• Stanislav D WorkflowPersistence question

  I'm trying to write fullblown WF persistence service, and so far I was good. I had no problems with Instance save/load methods. But now I stuck with Load/Save CompletedActivity... How do I get ContextGuid of the completed activity, if all DependencyProperties are internal/private Documentation points to void pages How do I something like this in non-MS assembly: Guid contextId = (( ActivityExecutionContextInfo ) activity . Ge ...Show All

• RHogue Where to get directshow.h

  Hi , Just got started on working with directshow. I downloaded one project which captures the video from webcam,.... . When I tried to build that project , directshow.h file was missing. How to get directshow.h file i have installed directx latest version on my pc.     Yes to both. http://www.microsoft.com/downloads/details.aspx FamilyId=A55B6B43-E24F-4EA3-A93E-40C0EC4F68E5&displaylang=en DirectShow is no ...Show All

• dougzhoez Dual Boot Vista Beta 2 build 5231 bcdedit entry for XP Pro sp2

  After reading http://www.microsoft.com/technet/windowsvista/library/85cd5efe-c349-427c-b035-c2719d4af778.mspx I have still not find a way to dual boot with vista bootmanager and xp sp2. I have 2 drive C and D: On C I have Vista build 5231 on D: XP sp2. I am looking for the the path and exe to put on the path entry to put for booting XP sp2, Identifier: {75254f72-9c48-11da-a07d-000e7b474a19} Device: partition=D: Path: ...Show All

• Fernando Gongora How can a new activity class be derived from a parent class that has a mandatory property?

  I'm trying to use a new Workflow Activity Library project containing an activity class AChild that derives from class AParent which has a manadatory property. Because AParent has a manadatory property, my library project for class AChild won't compile (because AParent's validation rules complain that the mandatory property isn't set). What is the workaround/design pattern for creating activity libraries containing new activity classes ...Show All

• karthi How to create a Custom directshow source filter

  error description: ..\DXSDK\Samples\C++\DirectShow\BaseClasses\ctlutil.h(278) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Is there any new version dxsdk can solution the problem Must Rewrite these codes to solution the problem thinks for answer. Thank you for the help My issue is that im trying to create a custom null sink filter for windows mobile 2005 so i have a guid defi ...Show All

• masontwo WWF Performance issues

  I am doing some timing measurements to figure out whether we can use WWF for orchastrating code within our project. Here are some of the numbers I am getting and questions associated with them: 1. For a workflow with about 5-6 activities including a parallel activity and several code activities, the time to create the workflow the first time is more than 300 millisecs (328, 359, etc). All subsequent times it takes about 15 millisecs. What i ...Show All

• adelgado VC 6.0 to VC8.0

  hi, I  am getting the below errors when I try to move a project from VC6.0 to VS.net 2005 c:\program files\microsoft visual studio 8\vc\platformsdk\include\shlwapi.h(1344) : error C2061: syntax error : identifier 'THIS' 1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\shlwapi.h(1345) : error C2061: syntax error : identifier 'THIS' It was showing in the lines of shlwapi.h which are as follows STDMETHOD_( ...Show All

• Tiger125 WinFX Runtime Components 3.0 Beta 2 installation problems

  Hello, I was using the February CTP until Beta 2. I’ve downloaded the new WinFX Runtime Components 3.0 Beta 2 and I can’t install them. I’ve uninstalled older version using the tool Microsoft has provided ( the MSI file ) and I’ve also removed several other components that I thought could cause the problem. I’m still receiving the following error: [05/24/06,00:29:52] VS Scenario: [2] CPrevProductInstalledCheck failed : <font face= ...Show All

• Al_chan How to use C# to cut and remove part of video out of the whole video ?

  Dear everyone, I have a problem about C# and hope to get your help. I want to use C# to cut and remove part of video out of the whole video. The video may be mpeg, avi ... How could I achieve that Thank you. Regards, David As for the http://DirectShowNet.SourceForge.net , according to their about page, there is very little executable code in the library.  There are a few helper functions, but ...Show All

• gabit7 Problem while hosting WF in ASP.NET

  Hi, I am using asp.net application to host windows workflow. While compiling my project I got the below mentioned error. I am using WF 2.2 Beta version. Error 53 The name 'WorkflowWebRequestContext' does not exist in the current context   Here is the code sample: private void StartWorkflow() { // Define the parametes for the Dictionary < string , object > parameters = new Diction ...Show All

• Hakan06 Network Providers and Credential Managers

  Greetings.  A product I work on implements what MS has referred to as a "Credential Manager", providing architected entry points such as "NPLogonNotify" from a dll we produce.  I know that there are several security-related changes in Vista, but from what I have read (which isn't a lot), it is not clear whether or not "Credential Managers" as implemented and working today under Windows XP will continue to work in all cases or some case ...Show All

• FracturedPsyche Missing RPCSHIM.DLL file?

  I am working on developing a installation that will work under Vista. I have resolved most problems but have encountered one item. Our application will not open with the 3D capabilities enabled. When I try to use dependency walker, it indicates that there is a missing dll file. The call we are making is from advapi32.dll. Advapi32 has dependencies on this file in Windows Vista. I have not been able to see the same dependency for XP or 2000. ...Show All

• Francois Paradis Please help

  When I try to build an old project which uses directx to show videos. there are errors as follows Linking... ConfigDlg.obj : error LNK2001: unresolved external symbol _CLSID_AudioRendererCategory ConfigDlg.obj : error LNK2001: unresolved external symbol _CLSID_AudioInputDeviceCategory ConfigDlg.obj : error LNK2001: unresolved external symbol _CLSID_VideoInputDeviceCategory ConfigDlg.obj : error LNK2001: unresolved external symbol _CLSID_Sy ...Show All

• Prakash Jha Saving and Reading Filter Graphs

  Is it possible to save a filter graph and later recreate it by loading it in from file. I have two applications. One that configures a device and its relevant cross bars (TV Capture Solution) and a second application should utilise those settings. Just wondered if this was possible. Many thanks in advance. You mean something like this: http://msdn.microsoft.com/library/default.asp url=/library/en-us/direct ...Show All

• NastyMatt Rehosting WWF and a simply expression

  Hi, I have rehosted the designer in my application and now I want assign a simply expression to an activity property. Imagine a workflow with three MyActivity with a int32 property, I want do this: MyActivity3.IntValue = MyActivity1.IntValue + MyActivity2.IntValue . I can do that Bye Whenever you add any activity to the workflow, it gets added in the xaml file. However, the rule set editor and ...Show All