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Setting VideoCapture resolution fails

Hi,

I'm trying to set VideoCapture resolution as follows, but it doesn't seem to do anything. The camera does support the requested format. I also tried different resolutions. No matter what I do, my VideoCapture is created with VGA resolution. Also, some other settings I'm trying to query do not seem to be supported.

VideoCapture *capture = new VideoCapture(0);

if( !capture->set( CAP_PROP_FRAME_WIDTH, 1920 ) || !capture->set( CAP_PROP_FRAME_HEIGHT, 1080 ) )
{
    //not print - both set calls return 'true'
    cerr << "setting resolution to full HD failed!" << std::endl;
}

double fps = capture->get( CAP_PROP_POS_FRAMES );
int width = capture->get( CAP_PROP_FRAME_WIDTH ); // returns 640
int height = capture->get( CAP_PROP_FRAME_HEIGHT ); // returns 480
int format = capture->get( CAP_PROP_FORMAT );

I remember those things never worked for me in the past, I'm wondering if this is implemented at all or if I'm making a mistake. OS: Windows 8.1, camera: MS LifeCam Studio, OpenCV: 3.1

Thanks, iko