How to change higher resolution.

Hi all.
I am working with Logitech webcam and using jmf.
Now i can show video and capture well but resolution of picture is 320X240.
I want to change resolution with some codes
public boolean requestCaptureFormat(Format requested_format, DataSource ds) {
        if (ds instanceof CaptureDevice) {
            FormatControl[] fcs = ((CaptureDevice) ds).getFormatControls();
            for (FormatControl fc : fcs) {
                Format[] formats = ((FormatControl) fc).getSupportedFormats();
                for (Format format : formats) {
                    if (requested_format.matches(format)) {
                        ((FormatControl) fc).setFormat(format);
                        return true;
        return false;
And i only change resolution to 640X480. It is not enough to good.
So i need to change resolution of this webcam to 2MP.
Need a help !!!
Thanks.

That code will allow you to set the resolution to anything that's supported. If your web cam supports resolutions that aren't listed in the FormatControl list, then those resolutions aren't supported by JMF/VFW...

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