Scanning webcams

At present im developing an application that uses a webcam. The program works fine but the problem however is, it is only limited to using MS webcam, is use a string to do this:

Code:

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//code by K0502201 [KU]
String strCamInput = "vfw:Microsoft WDM Image Capture (Win32):0";

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is there a way to make this so that i will assign the jmf registry of whatever webcam is connected on the user's computer to the string strCampInput?

Any advice is greatly appreciated

Greyskull