// Oprogramowanie Roman Ryltsov
There was a question asked about how IAMGraphBuilderCallback interface is used to prevent from particular filter insertion during Intelligent Connect. First of all, there is sample code at The March Hare‘s website: The IAMGraphBuilderCallback class can be used to remove problematic dshow filters when building a graph with intelligent connect. This sample does not provide…
As an appreciation of outstanding contributions in DShow/Media Foundation technical communities during the past year I was presented with the 2009 Microsoft® MVP Award, which I am very much pleased to receive. In an intention to accompany the post with useful DirectShow related information, here is the link list of most important DirectShow resources on…
If you drag a file over Windows Live Messenger‘s My Sharing Folders shell name space item, it would immediately interrupt dragging with an error message box, even if you never planned to drop onto this folder: This should definitely be rather implemented a different way. If you ever tried to drag something using slow PC…
One thing is worth special mentioning in connection with previous post on DirectShow Filter Graph Spy on Microsoft Vista system: ATL’s CSecurityDesc class caused to waste some time. CRegKey Key; ATLENSURE_SUCCEEDED(HRESULT_FROM_WIN32(Key.Open(HKEY_CLASSES_ROOT, pszKeyName, READ_CONTROL | WRITE_OWNER))); CSecurityDesc AdministratorsOwnerSecurityDescriptor; AdministratorsOwnerSecurityDescriptor.SetOwner(Sids::Admins()); ATLENSURE_SUCCEEDED(HRESULT_FROM_WIN32(Key.SetKeySecurity(OWNER_SECURITY_INFORMATION, &AdministratorsOwnerSecurityDescriptor))); The code compiles fine, but on runtime it gives error 87 (ERROR_INVALID_PARAMETER, E_INVALIDARG) in the…
With a lot of DirectShow Filter Graphs published on Running Object Table, especially those automatically published by Filter Graph Spy utility, it might be a bit tricky to locate your graph of interest in the list. Filter graphs are published with a textual moniker item name of predefined format, which is recognized by GraphEdit or…
This does not seem to be documented anywhere, so it makes sense to mention. A video decoder, wrapped by DMO Wrapper Filter, will receive preroll media samples with AM_SAMPLE_PREROLL flag (alternatively available using IMediaSample::IsPreroll), but it won’t even forward these samples to the underlying DMO, instead they are just ignored. MSDN says: Preroll samples are…
Spammers finally reached PHPBB version 3 “Olympus” default CAPTCHA automated OCR task in their development schedule and recently started registering bot users passing the provided CAPTCHA confirmation code. Luckily to them, PHPBB3 default CAPTCHA code is ridiculously easy to OCR, os basically this was rather expected. It does not however mean that there is no…