How to read PC shared images, from a android application?

Good afternoom,

I want read a image salved in a public directory of my pc, from android app.

I'm trying this code:

String ERROR = "";
PImage requestIMG = null;
boolean loadIMG = true; 


void setup()
{
 try{
  size(1000,1000);requestImageN();
    }catch(Exception e){ERROR = ERROR + "ERROR C";}
}
void draw()
{
  delay(1000);text(ERROR,50,50);
  try{
    if(loadIMG == true && requestIMG != null && requestIMG.width > 0)
    {
      loadIMG = false; requestIMG.loadPixels();image(requestIMG, 0,50);
    }
     }catch(Exception e){ERROR = ERROR + "ERROR B ";}
}
void requestImageN()
{
if(loadIMG == true){
 try{ requestIMG = requestImage("//NAME-PC/NEWS/image/1.png");}catch(Exception e){ERROR = ERROR + "ERROR A ";}
} 
}

It works with processing from W7, but fails in Android.

I think the problem may be how to point to the directory, but I tried various changes and can not solved it.

Regards and thanks in advance,

Anthony20