Converter a slide to picture

[aminj2e]

To convert a powerpoint to pictures and later display them, I used this java class


import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.poi.hslf.usermodel.SlideShow;


public class slidtoppt {

/**
* @param args
* @throws Throwable
*/
public static void main(String[] args) throws Throwable,IOException, Exception{
// TODO Auto-generated method stub
FileInputStream is = new FileInputStream("c:\\file\\slide.ppt");
System.out.println();
SlideShow ppt = new SlideShow(is);
is.close();

Dimension pgsize = ppt.getPageSize();

org.apache.poi.hslf.model.Slide[] slide = ppt.getSlides();
for (int i = 0; i < slide.length; i++) {

BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = img.createGraphics();
//clear the drawing area
graphics.setPaint(Color.white);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));

//render
slide[i].draw(graphics);

//save the output
FileOutputStream out = null;
try {
out = new FileOutputStream("slide-" + (i+1) + ".png");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
javax.imageio.ImageIO.write(img, "png", out);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
out.close();
}

}

}

Knowing that I downloaded all the jars, I still have errors:

Exception in thread "main" java.lang.NoSuchMethodError:
org.apache.poi.poifs.filesystem.POIFSFileSystem.ge tRoot()Lorg/apache/poi/poifs/filesystem/DirectoryNode;
at org.apache.poi.hslf.HSLFSlideShow.<init>(HSLFSlide Show.java:115)
at org.apache.poi.hslf.HSLFSlideShow.<init>(HSLFSlide Show.java:103)
at org.apache.poi.hslf.usermodel.SlideShow.<init>(Sli deShow.java:124)
at slidtoppt.main(slidtoppt.java:23)

[Norm]

Were all the necessary jar files on the classpath when you executed the code?
Could you have mixed versions of the jar files? See the API doc for the error message.

[aminj2e]

Yeah all the jars are in the project classpath :

aspose.slides-2.6.0.jar
batik-all-1.8pre-r1084380.jar
batik-slideshow.jar
jackrabbit-standalone-1.5.0.jar
jakarta-poi-2.5.jar
jakarta-slide-webdavlib-2.1.jar
jodconverter-2.1.1.jar
openoffice-juh-2.0.3.jar
openoffice-ridl-3.1.0.jar
poi-3.2-FINAL.jar
poi-3.5-beta1.jar
poi-scratchpad-3.5-beta5-20090219.jar
unoil-3.0.0.jar
ws4d-dpws-stack.presentation.jar

Where can i find the API doc for the error please ?
Thank's for the answer.
Have a nice day.

[Norm]

API docs are at this link:
Java Platform SE 6
Find the name in lower left and click for doc in main frame.

[aminj2e]

Sorry but i didn't find the code of error like "java.lang.NoSuchMethodError"
i realy wanna the used the right jars
Thank's again

[Norm]

i didn't find the code of error like "java.lang.NoSuchMethodError"

Go to the site I gave and Find: NoSuchMethodError in the lower left. Only the class names are there, the package names are not in that list.

[aminj2e]

Else can you please show the jars used because I can not resolve its mistakes?

[Norm]

I have none of the jar files and know nothing about any of the jar files you listed in post#3

The error message sounds like you could have jar files from different/conflicting versions of some of the classes.

Find the jar file that has the class that showed in the error and then look at the contents of that jar file and see what you can about that class file. What date does it have?