Hello guys,
I am barely new to both arduino and vb.net that's why I am here to beg for help and learn from you $)
So here's my project a pushbutton but with a vb.net interface 
I want to happen is when the button is pressed it will communicate to vb.net and the vb.net will show a output(picture for example).
Here's the arduino code I will use from example code:
/*
Button
Turns on and off a light emitting diode(LED) connected to digital
pin 13, when pressing a pushbutton attached to pin 2.
The circuit:
* LED attached from pin 13 to ground
* pushbutton attached to pin 2 from +5V
* 10K resistor attached to pin 2 from ground
* Note: on most Arduinos there is already an LED on the board
attached to pin 13.
created 2005
by DojoDave <http://www.0j0.org>
modified 30 Aug 2011
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Button
*/
// constants won't change. They're used here to
// set pin numbers:
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin
// variables will change:
int buttonState = 0; // variable for reading the pushbutton status
void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin, INPUT);
}
void loop(){
// read the state of the pushbutton value:
buttonState = digitalRead(buttonPin);
// check if the pushbutton is pressed.
// if it is, the buttonState is HIGH:
if (buttonState == HIGH) {
// turn LED on:
digitalWrite(ledPin, HIGH);
}
else {
// turn LED off:
digitalWrite(ledPin, LOW);
}
}
On my VB.NET(I used the drag & drop serialPort component) I dont have any idea on what code will I use to make it show its output.
I searched the google about this button project but it seems no one can give me the idea about the vb.net code 
I hope you spare some of your precious time and knowledge on me so that I could have a knowledge for my future projects THANK YOU <3