http://wiki.processing.org/w/Setting_width/height_dynamically - scroll down to see use case for applications

Thank you,

I didn't really understand how it works...
but i found a way to do it:

i use a small batch program in order to create a file with the parameters so i can read those parameters with my main sketch.

the main program (Essai.exe) :

1. try { 
   Runtime.getRuntime().exec("cmd.exe /c assoc pod=Podopressioscope");
   Runtime.getRuntime().exec("cmd.exe /c ftype Podopressioscope=D:...datalanceProg.bat %1 %2 %3" );              //this in order to open my batch when double click on ".pod" file
   }
   catch (Exception e) {println(e); }
   
   File passParam=new File("D:...datapassParam.txt");
   if (passParam.exists()){
    
   String nomFichier[] =loadStrings(passParam);            //load param witch ahve been wroten in passParam.txt
   stroke(0);
   
   
   for (int num=0;num<nomFichier.length;num++)
     text(nomFichier[num],0,0,100,200);                  //text the params but you can use it
     
     
     
     
   passParam.delete();   //delete passParam.txt for next time
   
   

here the lanceProg.bat file

1. 
   echo %*>>D:jmlDocumentsProcessingessaiapplication.windowsdatapassParam.txt      //write param in the file
   cd D:jmlDocumentsProcessingessaiapplication.windows
   if exist D:jmlDocumentsProcessingessaiapplication.windowsdatapassParam.txt Essai.exe           //open my main program
   

It works well
the last problem is that if double click on more than one .pod file my main program is open for each .pod file
i don't know how to check if the skecth is already running in order to prevent new opening...

mayby someone can help..