Integrate To Application A Process To Capture The Audio And Video

Mar 29, 2012

I'am on Visual Studio 2008, language :VB

I want to integrate to my application a process to capture the audio and video from a specific area of the screen and save it in a .wmv or .avi file.

I already have Microsoft.Expression.Encoder on my computer but I dont know how to integrate the tool to my project.

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[Code]....

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VB and programming on Windows as such. Mostly c++/gcc/linux. I am trying to build this VB app that shows a streaming video from a camera and that needs to be overlaid with some custom graphics and text. I used the code published here: [URL] to get the capture part to work. It essentially uses the avicap32.dll that most of you would probably know.

My plan:
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2) Do whatever graphics/text overlay on the obtained bitmap

3) send it to some picturebox on some form that is being shown

4) Do step 1 to 3 in a loop by a spawned worker thread.

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Now the specific problem: From my main thread directly if I do step 1 to 3 once UIComponent.DrawImage(VideoComponent.GetBitmap()) It shows me once captured image as it should and all is good.

Just to clarify: UIComponent is an object/instance that launches the Form and owns the picturebox I want to display on. VideoComponent is an object/instance that has started the videocapture and owns the picturebox to which the video is being captured. But if I wrap the same call above in a function and launch a thread that would start with that function as its starting point, I see a blank screen. Again, for testing purpose, I am only doing step 1 through 3 just once.

The thread part of the code is like this:

Private drawthread As Thread
public sub main()
drawthread = New Thread(AddressOf threadfunc)

[CODE]........

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