Noob GUI question - Display an Image from a file

I've done a bit of Java before but never a user interface. To start I'm just trying to display an image in a Panel, and can't even get that far!
Here is my code (all the relevant bits of it...), would be much appreciated if someone could explain why it doesn't work. (Just so you know, breakpoints have shown that the code IS getting to the end of the 'try' block successfully)
public class PictureBox extends Canvas {
    private Image m_image;
    public PictureBox()
        m_image = null;
    public PictureBox(Image image)
        m_image = image;
    public void setImage(Image image)
        m_image = image;
    @Override public void paint(Graphics g)
        if(m_image != null)
            g.drawImage(m_image, 0, 0, this);
    private void initialise()
        m_pb = new PictureBox();
        jPanel1.add(m_pb);
        jPanel1.add(new JButton());
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        try
            jFileChooser1.showOpenDialog(jPanel1);
            File f = jFileChooser1.getSelectedFile();
            m_image = ImageIO.read(f);
            m_pb.setImage(m_image);
            m_pb.repaint();
        catch(Exception e)
            return;
    }

I don't know which resource you are using as a guide, but throw it away immediately. You are using AWT here, I would highly recommend you switch to Swing. It has a very nice tutorial that will get you up and running in no time:
http://java.sun.com/docs/books/tutorial/uiswing/

Similar Messages

How can I display an image from a shared-network folder?

Hi
Does anyone know how I can display images from within APEX that are found outside the database? What configuration have I missed?
Within Windows-Internet-Explore I can access the following image using the below URLs, BUT I cannot access it from within APEX?
What do I need to do so APEX can display theses images from our internal shared network folder?
both these URLs work within Firefox (but on APEX):
\\Saremote\UPDOWNFILES_DIR\polk_insight.gif
file://///Saremote/UPDOWNFILES_DIR/polk_insight.GIF
So within APEX I have created a "display as Text' Item that works with this "amazon image" syntax:
{lessthan} IMG SRC= {doublequot} http://g-images.amazon.com/images/G/01/associates/navbar2000/logo-no-border(1).gif {doublequot} {greaterthan}
BUT sadly not with my image:
{lessthan} IMG SRC= {doublequot} file://///Saremote/UPDOWNFILES_DIR/polk_insight.GIF {doublequot} {greaterthan}
Any ideas would be appreciated.
Thanks
Steve
Edited by: [email protected] on Sep 12, 2008 8:30 AM
Edited by: [email protected] on Sep 12, 2008 8:31 AM
Edited by: [email protected] on Sep 12, 2008 8:32 AM
Edited by: [email protected] on Sep 12, 2008 8:33 AM

If you have a local html file, or open an image locally from the menu, then yes, it works, but with web pages that are served from a remote location (web server), security kicks in and prevents the web page from accessing local files (and files on a networked drive).
you will either have to put the image on the web server and access it through http, or you can load it into the database/workspace images and access it that way.

Can i display all images from databases with adf jsp

hi
I want to display all images from the databases whit adf bussines components, because with the sample on http://www.oracle.com/technology/training/products/intermedia/index.html page, i only can display 10 images. i'd lije to know if i can to search in the databases by the id of the image.
this is the code:
%@ taglib uri="http://xmlns.oracle.com/adf/ui/jsp/adftags" prefix="adf"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<%@ page contentType="text/html;charset=windows-1252"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>untitled</title>
</head>
<body>
<html:errors/>
<table border="1" width="100%">
<tr>
<th> </th>
<th>
<c:out value="${bindings.ImagenView1.labels['Id']}"/>
</th>
<th>
<c:out value="${bindings.ImagenView1.labels['Descripcion']}"/>
</th>
<th>
<c:out value="${bindings.ImagenView1.labels['Image']}"/>
</th>
</tr>
<c:forEach var="Row" items="${bindings.ImagenView1.rangeSet}">
<tr>
<td>
<c:out value="${Row.currencyString}"/>
</td>
<td>
<c:out value="${Row['Id']}"/>
</td>
<td>
<adf:render model="Row.Image"/>
</td>
<td>
<c:out value="${Row['Image']}"/>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>

I think you want the interMedia JSP tag library...
http://www.oracle.com/technology/software/products/intermedia/htdocs/descriptions/tag_library.html
Larry

Display an image from an array of bytes

Hi, I'm trying to display an image from the raw pixel values. lets say i read a bmp file to an array, chuk the header off and want to display the pixel. How can I do this? I don't want any file formats, just want to display the pixels and creat the image. Is this possible?
Many thanks,
H

Thanks for the reply. I had a look at MemoryImageSource and other classes that relates to it. I wrote the example given, but it doesn't identify createImage(). I've implemented ImageProducer, but still complains. Have you any idea why? Thanks for your help.
H

Problem loading image from jar file referenced by jar file

First, I searched this one and no, I didn't find an answer. Loading images from jar files has been pretty much done to death but my problem is different. Please read on.
I have my application, a straight up executable running from Eclipse. It uses a jar file, call it JarA. JarA launches a GUI that is located in another jar file. Call it JarB. To recap:
My application calls JarA -> JarA loads classes from JarB -> JarB looks for images to place in a GUI it wants to show on the screen
When JarB goes to load an image the following happens:
java.lang.NullPointerException
 at sun.misc.URLClassPath$3.run(URLClassPath.java:316)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.misc.URLClassPath.getLoader(URLClassPath.java:313)
 at sun.misc.URLClassPath.getLoader(URLClassPath.java:290)
 at sun.misc.URLClassPath.findResource(URLClassPath.java:141)
 at java.net.URLClassLoader$2.run(URLClassLoader.java:362)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findResource(URLClassLoader.java:359)
 at java.lang.ClassLoader.getResource(ClassLoader.java:977)
 at org.cubrc.gmshell.gui.MainWin.preInit(MainWin.java:152)
 at org.cubrc.gmshell.gui.MainWin.<init>(MainWin.java:135)
The code from JarB that loads the image looks like this:
 URL[] oSearch = {Main.class.getResource("images/")};
 URLClassLoader oLoader = new URLClassLoader(oSearch);
 imgIcon = new ImageIcon(oLoader.getResource("icon.gif"));
 imgMatchRunning = new ImageIcon(oLoader.getResource("gears.gif"));
 imgMatchStill = new ImageIcon(oLoader.getResource("gears-still.gif"));
 imgMagnify = new ImageIcon(oLoader.getResource("magnify.gif"));This looks right to me and JarB certainly has an images directory with those files. But I'm in hell right now because I don't know where to place the images to make this work or if you can even attempt to load images with a dependency chain like this.
Any help very appreciated!

Have you tried to move your image-files out of the jar file and place them in the sam folder as the jar-file? I think that would help.
When you try to load the image-file you get the NullPointerException because the program tries to read a file it can't find. Remember that a jar file IS a file and not a directory.
If you want to read somthing inside the jar-file you need to encode it first.
Have you tried to read the jar-file with winRar. It makes it easy to add and remove files in your jar-file.

Getting an image from a file

I am trying to get an image from a file
is there a way to convert a BufferedImage into an Image?
or otherwise get an Image directly from a file?
my searches turn up nothing
TIA

okay, so here's the new code:
// image_tracer.java
// image tracer
// Created by Erik Schmidt on 8/21/06.
// Copyright (c) 2006 __MyCompanyName__. All rights reserved.
import java.util.*;
import javax.imageio.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.io.*;
import java.awt.image.*;
import java.util.ArrayList;
import java.awt.Graphics;
import java.net.*;
import java.applet.*;
//FILE class, deals with File IO (note: does not possess the full method count of the java.io class File, this class only supports IO)
class FILE {
 private static String fname=new String();
 //class constructor, takes a String as an argument, returns nothing
 public FILE(String fName){
 fname=fName;
 }//end constructor
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 public static String getFilename(){ return fname; }
 //Reads in a file, takes no arguments, returns a String-either the contents of the file, or an error message
 public static String readFile() throws FileNotFoundException,IOException {
 String ret=new String();
 String tempstr=new String();
 File tFile=new File(fname);
 BufferedReader inFile=new BufferedReader(new FileReader(new File(fname)));
 if(tFile.exists()){
 while((tempstr=inFile.readLine())!=null) ret+=tempstr+"\n";
 ret=ret.substring(0,ret.length()-1);
 }else{
 return null;
 }//end if
 return ret;
 }//end readFile
 //Writes to a file, takes a String as an argument, returns true for sucess; false for IOException
 public static boolean writeFile(String str) throws IOException{
 PrintWriter prnt=new PrintWriter(new FileWriter(fname,false),true);
 try{
 prnt.println(str);
 return true;
 }catch(Exception ioe){
 return false;
 }//end try/catch
 }//end writeFile
 //Appends text to a file, returns true on completion; false on IOException
 public static boolean appendFile(String str) throws IOException{
 PrintWriter prnt=new PrintWriter(new FileWriter(fname,true),true);
 try{
 prnt.println(str);
 return true;
 }catch(Exception ioe){
 return false;
 }//end try/catch
 }//end appendFile
 //Tells if file exists. Takes no arguments, returns true if it exists, false if not
 public static boolean exists(){
 File tf=new File(fname);
 if(tf.exists()) return true;
 else return false;
 }//end exists
}//end FILE class
class MyPanel extends JPanel {
 Graphics save;
 Image blank;
 Image face;
 ArrayList x;
 ArrayList y;
 ImageObserver ob;
 private class MListen implements MouseMotionListener {
 public void mouseDragged(MouseEvent e){
 x.add(new Integer(e.getX()));
 y.add(new Integer(e.getY()));
 repaint();
 public void mouseMoved(MouseEvent e){
 //do nothing
 public MyPanel(Image f){
 x=new ArrayList();
 y=new ArrayList();
 blank=Toolkit.getDefaultToolkit().createImage("~/sites/blank.jpg");
 //save=createImage(500,500).getGraphics();
 face=f;
 addMouseMotionListener(new MListen());
 x.add(new Integer(-30));
 y.add(new Integer(-30));
 public void paintComponent(Graphics g){
 g.drawImage(face,0,0,ob);
 //save.drawImage(blank,0,0,ob);
 g.setColor(Color.black);
 //save.setColor(Color.black);
 for(int i=0;i<x.size();i++){
 //save.fillOval(((Integer)x.get(i)).intValue(),((Integer)y.get(i)).intValue(),20,20);
 g.fillOval(((Integer)x.get(i)).intValue(),((Integer)y.get(i)).intValue(),20,20);
class WListen extends WindowAdapter {
 public void WindowClosed(WindowEvent e){
 System.exit(0);
class MainFrame extends JFrame {
 MyPanel panel;
 JButton submit;
 JPanel main;
 public MainFrame(Image face){
 super("Image Tracer");
 setSize(750,750);
 panel=new MyPanel(face);
 submit=new JButton("Save");
 main=new JPanel(new BorderLayout());
 main.add(panel,BorderLayout.CENTER);
 main.add(submit,BorderLayout.SOUTH);
 setContentPane(main);
class IMAGE {
 public Image run(String filename){
 return Toolkit.getDefaultToolkit().createImage(filename);
public class image_tracer {
 public static void main (String args[]) {
 IMAGE image=new IMAGE();
 MainFrame frame=new MainFrame(image.run("~/sites/face.jpg"));
 frame.addWindowListener(new WListen());
 frame.show();
}ignore the file stuff, that's for later
why does MainFrame not display the MyPanel object?

Pick Image from Html file

I want to retrieve the image from html file & then save this file in jpg format.
I have a html file with following contents.
Patient id = 1
Dated = 03/06/2008
Pcr_Volume = 0.5
Notes:
Principle :
after principle heading there is a graph file attached.
Result:
Remarks:
I want to pick this graph file which is present after Principle heading and save it to jpg format.
Regard's

I want to pick Image(which is actually a graph image of patient test). This image is present is html file with some contents and this file is auto generated by the machine in which test perform.
I just open that html file and click on that image which is pasted in between that html file when i clik on that image a toolbar appear with save & some other button & then I press
save button and save that image in jpg format.
After that i use this image to display in patient report.

How to display the content from a file stored in database

when i am trying to display the content from a file which stored in database on oracle report 10g
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<HEAD>

<TITLE>Product Overview (ORACLE MARKETING)</TITLE>
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ls.
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<li>
Customer Insight - With sophisticated customer management and list generation, Oracle Marketing enables you to quickly generate target lists and segments using an intuitive user interface. The easy to use Natural Query Language Builder (NLQB) lets you query for customers or prospects using a natural language while hiding data complexity; fatigue management ensures that you do not over-contact the same customers with marketing messages; and predictive analytics helps you predict customer behavior that you can leverage to produce significant increases in marketing return on investments (ROI).
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Hi,
you can try to use the:
ConsumerTreeListPreview
layout for KM navigation ivew (or customize to your own).
This layout shows a folder tree on the left, a document list on the right. When you click on a document from the list it shows the contents of the file on the bottom of the iview.
Hope this helps,
Romano

How to use image from a file in signature appearance.

Hi,
I am creating a Plugin for acrobat 9, using PubSec using DocSign sample as basis. I have created the appearance using text objects and the logos data that came with the DocSign sample. But I want to use image from a file (like, jpg) in the signature appearance creation. So far the documentation doesnt tell how to achieve this.
Can you please tell me in a "How-to" kinda way to achieve this?
Thanks in advance.

Thanks for ur prompt reply.
There are so many samples in the sdk. which one is the "sample for adding images."?

How to load images from css file in JavaFX 8

I have this css file which loads images in JavaFX 8 application:
#pill-left {
    -fx-padding: 5;
     -fx-border-image-source: url("/com/dx57dc/images/left-btn.png");
    -fx-border-image-slice: 4 4 4 4 fill;
    -fx-border-image-width: 4 4 4 4;
    -fx-border-image-insets: 0;
    -fx-border-image-repeat: stretch;
     -fx-background-color: null !important;
#pill-left:selected { -fx-border-image-source: url("/com/dx57dc/images/left-btn-selected.png"); }
#pill-left .label {
    -fx-text-fill: #d3d3d3;
    -fx-effect: dropshadow( one-pass-box , rgba(0,0,0,0.75) , 0, 0.0 , 0 , -1 );
#pill-left:selected .label {
    /* -fx-text-fill: black; */
    -fx-text-fill: white;
    -fx-effect: dropshadow( one-pass-box , white , 0, 0.0 , 0 , 1 );
#pill-center {
    -fx-padding: 5;
     -fx-border-image-source: url("/com/dx57dc/images/center-btn.png");
    -fx-border-image-slice: 4 4 4 4 fill;
    -fx-border-image-width: 4 4 4 4;
    -fx-border-image-insets: 0;
    -fx-border-image-repeat: stretch;
     -fx-background-color: null !important;
#pill-center:selected { -fx-border-image-source: url("/com/dx57dc/images/center-btn-selected.png"); }
#pill-center .label {
    -fx-text-fill: #d3d3d3;
     -fx-effect: dropshadow( one-pass-box , rgba(0,0,0,0.75) , 0, 0.0 , 0 , -1 );
#pill-center:selected .label {
    -fx-text-fill: black;
    -fx-effect: dropshadow( one-pass-box , white , 0, 0.0 , 0 , 1 );
#pill-right {
    -fx-padding: 5;
    -fx-border-image-source: url("/com/dx57dc/images/right-btn.png");
    -fx-border-image-slice: 4 4 4 4 fill;
    -fx-border-image-width: 4 4 4 4;
    -fx-border-image-insets: 0;
     -fx-border-image-repeat: stretch;
    -fx-background-color: null !important;
#pill-right:selected { -fx-border-image-source: url("/com/dx57dc/images/right-btn-selected.png"); }
#pill-right .label {
     -fx-text-fill: #d3d3d3;
    -fx-effect: dropshadow( one-pass-box , rgba(0,0,0,0.75) , 0, 0.0 , 0 , -1 );
#pill-right:selected .label {
    -fx-text-fill: black;
    -fx-effect: dropshadow( one-pass-box , white , 0, 0.0 , 0 , 1 );
The images are located at the Java package com.dx57dc.images
In Java 7_25 this code works as expected but in JavaFX 8 b99 I get this error:
ava.lang.NullPointerException
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1129)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:1598)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1520)
at com.sun.javafx.sg.prism.NGGroup.renderChildren(NGGroup.java:233)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:199)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1249)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:1598)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1520)
at com.sun.javafx.sg.prism.NGGroup.renderChildren(NGGroup.java:233)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:199)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1249)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:1598)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1520)
at com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:99)
at com.sun.javafx.tk.quantum.AbstractPainter.paintImpl(AbstractPainter.java:210)
at com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:95)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
at com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:129)
at java.lang.Thread.run(Thread.java:724)
D3D Vram Pool: 13,331,480 used (5.0%), 13,331,480 managed (5.0%), 268,435,456 total
20 total resources being managed
4 permanent resources (20.0%)
1 resources locked (5.0%)
7 resources contain interesting data (35.0%)
0 resources disappeared (0.0%)
D3D Vram Pool: 13,331,480 used (5.0%), 13,331,480 managed (5.0%), 268,435,456 total
20 total resources being managed
4 permanent resources (20.0%)
1 resources locked (5.0%)
7 resources contain interesting data (35.0%)
0 resources disappeared (0.0%)
D3D Vram Pool: 13,331,480 used (5.0%), 13,331,480 managed (5.0%), 268,435,456 total
20 total resources being managed
4 permanent resources (20.0%)
1 resources locked (5.0%)
7 resources contain interesting data (35.0%)
0 resources disappeared (0.0%)
What is the proper way to load images from css in Java 8?
Ref
How to load images from css file in JavaFX 8 - Stack Overflow

There is nothing special to do - you execute the statement from your program just like any other SQL statement. The only thing to be aware of are the privilege/permission issues:
When loading from a file on a client computer:
READ CLIENT FILE privilege is also required for the database user.
Read privileges are required on the directory being read from.
The allow_read_client_file database option must be enabled.
The read_client_file secure feature must be enabled.
Revoking these privileges is also the only way you can prevent a user from executing the statement.

Copying a part of image from one file to another

I am very new to InDesign, 2days old. I have to copy a small part of an image from one file and to paste on the other file. Is it possible? If yes, can you anybody explain me step by step?

Welcome to the forum.
Briefly, I would open the image in Photoshop. Crop the area you want. Size it to the finished size at (for printing) 300ppi, save it in the folder where you are going to save your InDesign document. Create a new InDesign document, choose Print for the intent, select the page size, margins, etc. save and name your document. You can place (command/control D) your image. Resizing it and positioning it to suit.
By using a PSD file you can easily round trip back to Photoshop to make more changes.
You should get some lessons, such as those on Lynda.com and Trainsimple.com and there are some excellent books available as well - Classroom in a Book and Visual Quickstart Guide.
Derek

Editing Image From PDF File To Use in AI Document

Hello,
I am a beginner user of AI and am having trouble with editing certain images from PDF files on Illustrator. I'm not even sure what I'm trying to do can be done on Illustrator or requires Photoshop.
A) Here is the first example (Note that this is only similar to the type of image I am talking about. It is not the exact one as I don't have access to it right now):
So let's say here are the things I want to do. (1) Extract it from the PDF file, (2) transfer it to my AI document without blurriness, (3) change the white background of the image to another color (eg. grey), (4) and embolden the lines presently in the image. If you can advise what's the way to perform these tasks?
I have used image trace at times but if the photo is too light, portions of it will vanish. The portions that do remain become way too bold. It would be great if there was a way I could make most if not each components of the image controllable/movable. Is it possible?
Also, what if I want to erase some of the text on the image? I have tried using the eraser tool but it does not erase on images.
B) How would I go about removing the background of a photo like this and replacing it with a color?
Please keep in mind that I am a complete neophyte when it comes to using Illustrator, Photoshop etc so take this into consideration when explaining. Thanks in advance

Trent,
To make a clear and clean drawing like A), it is better to use the image as a locked template and recreate with the native tools; most things can be made with the Rectangle Tool and the Ellipse Tool, some with the Line Segment Tool or the Pen Tool; and you can use different Window>Pathfider operations.
It is probably easier to get rid of the surroundings in B) using Photoshop where you can erase colours within a range; the grass seen through the windows may be treated by itself, and you may wish to keep the shadow.

Reading Images from JAR Files

Hi,
I am having a very difficult time being able to read images from a JAR file via my Applet. I have tried everything that I know about with no luck. The only way I can get this to work is to store the images individually in a sub directory of public_html on the websever. This works, but I would like the images to come down in a JAR file for performance reasons.
I am using Internet Explorer 5.5 for my browser. I checked the options and everything seems to be in order, but......
I would appreciate any feedback that anyone might have on this topic..........
Thank You....

once in a jar file i inserted a image
the jar file on clicking starts an frame.
so the image was for getting that image at the icon place at top and at minimized window
i could not get that image from jar file by new imageicon().getimage();
but i get the image if it is in the directory in which jar file is.....
can one explain the reason

Extracting Images from PDF file

Hello All,
I am reading PDF File.I need to extract images from PDF File programatically.But problem is that some images are stored inside PDF File using FlateDecode Filter and I need to first decode that file and then I can extract that image .I dont know the way to decode that image data.Is there any way or API to do that in C++.
Thanks
Aarti Nagpal

I think you can do it through cos object in VC++ plugin..go through the PDEFilterSpec in
Acrobat core api reference
Be well..

Reg: Upload an image from IBM File Net into SAP ZTABLE .

HI,
I have a requiremnt to Upload an image from IBM File into SAP ZTABLE .
or
can anyone give me an idea on
How to Upload an image from any image software into SAP ZTABLE .
Thnaks,
Arjun
Edited by: Arjun on Jan 22, 2010 2:24 PM

hI,
I've found the solution!!
My code was wrong, the correct way is:
DATA: image type XSTRING,
            imagelength type i.
DATA: it_img TYPE w3mimetabtype.
CALL FUNCTION 'SSFC_BASE64_DECODE'
   EXPORTING
     b64data = output-CONVERT_FROM_URL_RESULT
   IMPORTING
     bindata = image
   EXCEPTIONS
     OTHERS = 8.
CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
   EXPORTING
     buffer                = image
     "APPEND_TO_TABLE       = ' '
   IMPORTING
     OUTPUT_LENGTH         = imagelength
   tables
     binary_tab            = it_img.

Noob GUI question - Display an Image from a file

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