public bool IsFeedLoadDone { get; }
@property (nonatomic, assign, readonly) BOOL isFeedLoadDone
public boolean isFeedLoadDone()
public:
property bool IsFeedLoadDone {
bool get();
}
IsFeedLoadDone # get (RasterCodecs)
true if the feed-load process is done; false, otherwise. The default value is true.
Checking the value of IsFeedLoadDone is useful to exit out of the feed-load process when sufficient data has been collected to load all the pages requested.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Svg;
public void FeedLoadMultiExample()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Eye.gif");
string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "FeedLoadMulti.tif");
// Load pages 2 through 5 from the file by reading chunks from the stream
codecs.StartFeedLoad(0, CodecsLoadByteOrder.BgrOrGray, 2, 5);
using (FileStream fs = File.OpenRead(srcFileName))
{
const int bufferSize = 1024;
byte[] buffer = new byte[bufferSize];
int read;
do
{
System.Windows.Forms.Application.DoEvents();
read = fs.Read(buffer, 0, bufferSize);
Debug.WriteLine("Feeding {0} bytes", read);
if (read > 0)
codecs.FeedLoad(buffer, 0, read);
}
while (read > 0 && !codecs.IsFeedLoadDone);
}
RasterImage image = codecs.StopFeedLoad();
Debug.WriteLine("{0} pages loaded", image.PageCount);
// Save the image to disk
codecs.Save(image, destFileName, RasterImageFormat.Tif, 1, 1, -1, 1, CodecsSavePageMode.Overwrite);
image.Dispose();
// Clean up
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images";
}
import java.io.*;
import java.net.*;
import java.nio.file.Paths;
import java.util.*;
import java.time.Instant;
import java.time.Duration;
import org.junit.*;
import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
import static org.junit.Assert.*;
import leadtools.*;
import leadtools.codecs.*;
import leadtools.codecs.RasterCodecs.FeedCallbackThunk;
import leadtools.drawing.internal.*;
import leadtools.imageprocessing.*;
import leadtools.imageprocessing.color.ChangeIntensityCommand;
import leadtools.svg.*;
public void feedLoadMultiExample() throws IOException {
final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images";
RasterCodecs codecs = new RasterCodecs();
String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "Eye.gif");
String destFileName = combine(LEAD_VARS_IMAGES_DIR, "FeedLoadMulti.tif");
// Load pages 2 through 5 from the file by reading chunks from the stream
FeedCallbackThunk feedLoad = codecs.startFeedLoad(0, CodecsLoadByteOrder.BGR_OR_GRAY, 2, 5);
try (InputStream fileStream = new FileInputStream(srcFileName)) {
final int bufferSize = 1024;
byte[] buffer = new byte[bufferSize];
int read = 0;
do {
read = fileStream.read(buffer, 0, bufferSize);
System.out.println("Feeding " + read + " bytes");
if (read > 0)
feedLoad.feedLoad(buffer, 0, read);
} while (read > 0 && !feedLoad.isFeedLoadDone());
}
RasterImage image = feedLoad.stopFeedLoad();
System.out.println(image.getPageCount() + " pages loaded");
// Save the image to disk
codecs.save(image, destFileName, RasterImageFormat.TIF, 1, 1, -1, 1, CodecsSavePageMode.OVERWRITE);
assertTrue("Image unsuccessfully saved", (new File(destFileName)).exists());
System.out.println("Saved image at" + destFileName);
// Clean up
image.dispose();
codecs.dispose();
}
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