ddc1test.java

来自「纯java操作系统jnode,安装简单和操作简单的个人使用的Java操作系统」· Java 代码 · 共 46 行

/*
 * $Id: DDC1Test.java,v 1.2 2004/02/26 21:17:11 lsantha Exp $
 */
package org.jnode.test.gui;

import org.jnode.driver.ApiNotFoundException;
import org.jnode.driver.Device;
import org.jnode.driver.DeviceNotFoundException;
import org.jnode.driver.DeviceUtils;
import org.jnode.driver.video.ddc.DDC1NoSignalException;
import org.jnode.driver.video.ddc.DDC1ParseException;
import org.jnode.driver.video.ddc.DDC1Reader;
import org.jnode.driver.video.ddc.DisplayDataChannelAPI;
import org.jnode.driver.video.ddc.EDID;
import org.jnode.util.NumberUtils;

/**
 * @author Ewout Prangsma ([e-mail])
 */
public class DDC1Test {

    public static void main(String[] args) {

        final String devId = (args.length > 0) ? args[0] : "fb0";
        try {
            final Device dev = DeviceUtils.getDevice(devId);

            System.out.println("Reading DDC1 data, please wait");
            final DisplayDataChannelAPI api = (DisplayDataChannelAPI) dev.getAPI(DisplayDataChannelAPI.class);
            final DDC1Reader reader = new DDC1Reader(api);
            final EDID data = reader.read();

            System.out.println("DDC1-EDID=" + data);
            System.out.println("DDC1-EDID (raw)=" + NumberUtils.hex(data.getRawData()));
        } catch (DeviceNotFoundException ex) {
            System.out.println("Cannot find device " + devId);
        } catch (ApiNotFoundException ex) {
            System.out.println("No DisplayDataChannelAPI found on device " + devId);
        } catch (DDC1NoSignalException ex) {
            System.out.println("No DDC1 signal found");
        } catch (DDC1ParseException ex) {
            System.out.println("Invalid DDC1 data read: " + ex.getMessage() + ", it does not hurd to try again");
        }
    }
}