Never the less you are using some lib to access the camera.I´m using a WINXP compatible one, wich doesn´t requires some particular driver instalation.
Have a look if this lib is offering such functionality and try calling them and see if it has influence on the image you get.
Not necessarily.I guess it implies in some standardization,
It can just as well imply that this camera does not allow settings these parameters.
Bookmarks