Browse by Tags

Introduction to Windows Media Foundation
07 March 11 11:26 PM | pavely | 3 comment(s)

I’ve been writing a new course on this technology, so I thought I’d share some of my experiences with the Windows Media Foundation. What is Windows Media Foundation? The Windows Media Foundation is technically the successor of DirectShow (which is still around and very much supported), introduced in Windows Vista and enhanced in Windows 7. It’s a multimedia platform, capable of playing, analyzing, writing and otherwise transforming media (mostly video & audio, but can technically be anything...

תגים:COM, C++, COM Apartments, Vista, DEV, Win32, Windows7, Media Foundation

.NET, COM and Apartments Tips
21 February 08 06:18 PM | pavely | 1 comment(s)

We all know that when we use COM interop with .NET we get some RCW (Runtime Callable Wrapper) CLR object representing and controlling access to the underlying COM object. When we call the C# new operator, under the hood the RCW calls the CoCreateInstance API to create the actual COM object, etc. What may not be apparent, is that there may exist another proxy to the COM object, even if the COM server is a DLL (in-process server). The reason this may happen is related to COM apartments. an Apartment...

תגים:מכללת הי-טק, COM, .NET, C#, COM Apartments, Interop