Hi,
I did an application which captures a webcam and I would like to run it from another file. So I have a GUI with a button, and whenever I click that button, the other processing (video-capturing) program should start. But open("thingy.app") delivers a JavaIOException. The applications are in the same sketch folder.
What am I doing wrong?

hey i have a fix for this, a new open method for PApplet:


<code>
 public void open(String filename) {
   if (platform == WINDOWS) {
     // just launching the .html file via the shell works
     // but make sure to chmod +x the .html files first
     // also place quotes around it in case there's a space
     // in the user.dir part of the url
     try {
       Runtime.getRuntime().exec("cmd /c \"" + filename + "\"");
     } catch (IOException e) {
       e.printStackTrace();
       throw new RuntimeException("Could not open " + filename);
     }

   } else if (platform == MACOSX) {
     try {
// Java on OS X doesn't like to exec commands in " for soem reason
// escape spaces just in case
     if (filename.indexOf(' ') != -1) {
      StringBuffer sb = new StringBuffer();
      char c[] = filename.toCharArray();
      for (int i = 0; i < c.length; i++) {
        if (c[i] == ' ') {
          sb.append("\\\\ ");
        } else {
          sb.append(c[i]);
        }
      }
      filename = sb.toString();
     }

       Runtime.getRuntime().exec("open " + filename);
     } catch (IOException e) {
       e.printStackTrace();
       throw new RuntimeException("Could not open " + filename);
     }

   } else if (platform == MACOS9) {
     // prepend file:// on this guy since it's a file
     String url = "file://" + filename;

     // replace spaces with %20 for the file url
     // otherwise the mac doesn't like to open it
     // can't just use URLEncoder, since that makes slashes into
     // %2F characters, which is no good. some might say "useless"
     if (url.indexOf(' ') != -1) {
       StringBuffer sb = new StringBuffer();
       char c[] = url.toCharArray();
       for (int i = 0; i < c.length; i++) {
         if (c[i] == ' ') {
           sb.append("%20");
         } else {
           sb.append(c[i]);
         }
       }
       url = sb.toString();
     }
     link(url);

   } else {
     open(new String[] { filename });
   }
 }
</code>