// Software Production Line
Isolated property is supposed to enable referencing in-process COM servers as a registration free COM dependency, but something got broken on the way: Visual Studio 2019 Preview and .NET 5 produce applications that lose the link. It is still preview so hopefully things get resolved timely. The issue on GitHub: Single-File Executable Cannot Use Registration…
An interesting Media Foundation question on StackOverflow: Weird connection between CoInitializeSecurity() and Media Foundation Encoders A developer has reasons to discard standard COM security and go RPC_C_IMP_LEVEL_ANONYMOUS. Surprisingly this has effect on Windows Media Foundation API in the part of available codecs (Media Foundation Transforms). Sample code: CoInitializeSecurity line in the code above removes the…
ID3D11DeviceChild similarly to a few other related interfaces offers methods including: ID3D11DeviceChild::GetPrivateData – Get application-defined data from a device child. ID3D11DeviceChild::SetPrivateData – Set application-defined data to a device child and associate that data with an application-defined GUID. ID3D11DeviceChild::SetPrivateDataInterface – Associate an IUnknown-derived interface with this device child and associate that interface with an application-defined GUID.…
User’s question about Alax.Info IP Video Source DirectShow filter for JPEG/M-JPEG video: As it stands now, in order to configure the video capture source filter, I have to instantiate it […], set the properties (camera URL, and video dimensions), then save the filter state to a data array which is then compiled into the application.…
I already wrote earlier on 32/64-bit issues with Visual Studio. The problems are not frequent but when they happen they are pretty confusing. Here is another one today. C++ code is simple: #import “libid:59941706-0000-1111-2222-7EE5C88402D2” raw_interfaces_only no_namespace CComPtr<IObject> pObject; ATLENSURE_SUCCEEDED(pObject.CoCreateInstance(__uuidof(Object))); BYTE* pnData; ATLENSURE_SUCCEEDED(pObject->Method((ULONG_PTR) (BYTE*) pnData)); A COM method returns a pointer to data – pretty straightforward,…
There was a problem reported for registered and relocated DirectShowSpy, which might be causing issues: Deleting faulty DirectShowSpy registry key. Some users that use a 3rd party tool called DirectShowSpy may encounter errors when logging in to XSplit. This can be caused by a fault registry key that is introduced when DirectShowSpy is registered to…
In one of the earlier posts I mentioned a problem with registration-free COM dependency setup up by Visual Studio as a part of build process. This post is about the tool that offers an alternate solution for the problems, and also gives more: standalone, independent from build, addition/removal registration-free COM links automation of registration-free COM…