Matlab compiler + image acquisition issue

For the first question, you probably have two cameras - your gige camera and the built-in webcam. You need to get the adapter you want. Play around with this code snippet to adapt it to your needs:

  hardwareInfo = imaqhwinfo % Print what cameras are there.
  adaptorNames = hardwareInfo.InstalledAdaptors;
  % Might look something like:
  % InstalledAdaptors: {'dcam'  'gentl'  'gige'  'lumeneraimaqw64'  'matrox'  'winvideo'}
  matches = strfind(adaptorNames, 'lumenera');
  % Find out which index is the Lumenera Camera.
  LumeneraIndex = find(~cellfun(@isempty, matches));
  theLumeneraAdaptor = adaptorNames{LumeneraIndex}

  hw2 = imaqhwinfo(theLumeneraAdaptor)
  devInfo = hw2.DeviceInfo
  devName = devInfo.DeviceName
  devID = devInfo.DeviceID

For the next question, don't use set(). Simply do this:

src.exposure = theDesiredExposureValue;