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Membro desde 19 de setembro de 2003
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Ivaylo Kachaunov, owner of Vuvirt Ltd. More than 15 years of professional experience in consulting, outsourcing, project management, software development, and customer-focused implementation in GUI, image/video/audio processing multimedia applications, web-oriented applications, database-oriented applications, embedded systems, games, 2D/3D graphics and animations. Manage and perform overall R&D of various video/audio processing, multimedia and 3D rendering software projects and solutions: - Video mixing solutions using DirectX - DirectX, OpenGL, Unity 3D rendering solutions and games - DirectX, OpenGL COM hooking - WASAPI, DirectShow, DirectSound COM hooking - Win32 API hooking - OpenCV, OCR - FFMPEG For further details: LinkedIn: vuvirt GitHub: VuVirt Stackoverflow: vuvirt
$39 USD/hr
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Project Manager

Jan 2008

Manage and perform overall R&D of various video, multimedia and 3D rendering software projects and solutions.


Jan 2006 - Dec 2007 (1 year)

Took care of the initial development and further improvement of Game Show Design library, used for creation of TV game shows, which also includes a Designer application. Developed framework 2.0 and Managed DirectX 9.0c. Client website:


M.S. in Computer Science

1994 - 1999 (5 years)


Java (2004)


Java AWT


Windows Explorer style ghost drag image in a C# application

Have you noticed the cool ghost image that Windows Explorer produces when you start dragging files/folders from it? Well, I wanted to implement this in a C# project when dragging files between it and Windows Explorer. After a lot of Googling, I found out that there are three directions to start working on, as follows: a "custom" cursor created from a MemoryStream initialized from an Image, as shown in this article. the ImageList_BeginDrag and related APIs, as shown in this article: Drag


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