form1.cs

source led giao tiep qua cong LPT

			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(448, 149);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.linkLabel1,
																		  this.button_Address,
																		  this.textBox_port_adress,
																		  this.textBox_byte,
																		  this.pictureBox_D0,
																		  this.pictureBox_D1,
																		  this.pictureBox_D2,
																		  this.pictureBox_D3,
																		  this.pictureBox_D4,
																		  this.pictureBox_D5,
																		  this.pictureBox_D6,
																		  this.pictureBox_D7,
																		  this.button_Dance,
																		  this.button_Count,
																		  this.Not,
																		  this.button_Reset_Leds,
																		  this.checkBox_Pin8,
																		  this.checkBox_Pin7,
																		  this.checkBox_Pin6,
																		  this.checkBox_Pin5,
																		  this.checkBox_Pin4,
																		  this.checkBox_Pin3,
																		  this.checkBox_Pin2,
																		  this.checkBox_Pin1,
																		  this.button_Send_Bits});
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.Text = "Controlling LEDs with Parallel Port";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
 
        private void Reset_LEDs() // Makes all the data pins low so the LED's turned off
		{
			PortAccess.Output(adress, 0);
		}
		
		
		#region LED Picture Loadings
		private void LoadNewPict_D0()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D0.Image = Image.FromFile (path);
		}

		private void LoadNewPict_D1()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D1.Image = Image.FromFile (path);
		}

		private void LoadNewPict_D2()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D2.Image = Image.FromFile (path);
		}

		private void LoadNewPict_D3()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D3.Image = Image.FromFile (path);
		}

		private void LoadNewPict_D4()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D4.Image = Image.FromFile (path);
		}

		private void LoadNewPict_D5()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D5.Image = Image.FromFile (path);
		}

		private void LoadNewPict_D6()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D6.Image = Image.FromFile (path);
		}

		private void LoadNewPict_D7()
		{
			
			string path = @"C:\C#\LED\on.gif";
			this.pictureBox_D7.Image = Image.FromFile (path);
		}
		
		
		private void LoadOldPict_D0()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D0.Image = Image.FromFile (path);
		}

		private void LoadOldPict_D1()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D1.Image = Image.FromFile (path);
		}
		
		private void LoadOldPict_D2()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D2.Image = Image.FromFile (path);
		}

		private void LoadOldPict_D3()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D3.Image = Image.FromFile (path);
		}

		private void LoadOldPict_D4()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D4.Image = Image.FromFile (path);
		}

		private void LoadOldPict_D5()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D5.Image = Image.FromFile (path);
		}

		private void LoadOldPict_D6()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D6.Image = Image.FromFile (path);
		}

		private void LoadOldPict_D7()
		{
			
			string path = @"C:\C#\LED\off.gif";
			this.pictureBox_D7.Image = Image.FromFile (path);
		}
		
		#endregion 
		
		void onCheckBoxClick(object sender, EventArgs e) //For checkboxes and the imageboxes you can also use a loop here
		{
			int value = 0;

			if(checkBox_Pin1.Checked)
			{
				value += (int)Math.Pow(2,0);
				LoadNewPict_D0();
			}
			else
				LoadOldPict_D0();
				value += 0;

			if(checkBox_Pin2.Checked)
			{
				value += (int)Math.Pow(2,1);
				LoadNewPict_D1();
			}
			else
				LoadOldPict_D1();
				value += 0;
			
			if(checkBox_Pin3.Checked)
			{
				value += (int)Math.Pow(2,2);
				LoadNewPict_D2();
			}
			else
				LoadOldPict_D2();
				value += 0;
				
			if(checkBox_Pin4.Checked)
			{
				value += (int)Math.Pow(2,3);
				LoadNewPict_D3();
			}
			else
				LoadOldPict_D3();
				value += 0;
				
			if(checkBox_Pin5.Checked)
			{
				value += (int)Math.Pow(2,4);
				LoadNewPict_D4();
			}
			else
				LoadOldPict_D4();
				value += 0;
				
			if(checkBox_Pin6.Checked)
			{
				value += (int)Math.Pow(2,5);
				LoadNewPict_D5();
			}
			else
				LoadOldPict_D5();
				value += 0;
			
			if(checkBox_Pin7.Checked)
			{
				value += (int)Math.Pow(2,6);
				LoadNewPict_D6();
			}
			else
				LoadOldPict_D6();
				value += 0;
				
			if(checkBox_Pin8.Checked)
			{
				value += (int)Math.Pow(2,7);
				LoadNewPict_D7();
			}
			else
				LoadOldPict_D7();
				value += 0;


			PortAccess.Output(adress, value);
		}
		

		private void button_Send_Bits_Click(object sender, System.EventArgs e) // Sends decimal to data pins
		{
			PortAccess.Output(adress, Int32.Parse(this.textBox_byte.Text));
		}

		private void button_Reset_Leds_Click(object sender, System.EventArgs e) // Unchecks the checkboxes and reset leds
		{
			j=0; i=0;
			Reset_LEDs();
			checkBox_Pin8.Checked = false;
			checkBox_Pin7.Checked = false;
			checkBox_Pin6.Checked = false;
			checkBox_Pin5.Checked = false;
			checkBox_Pin4.Checked = false;
			checkBox_Pin3.Checked = false;
			checkBox_Pin2.Checked = false;
			checkBox_Pin1.Checked = false;
		}

		void dance_LEDs(object o2, EventArgs e2) //Gives a motion to the LEDs
		{
			if(j<9)
			{
				switch(j)
				{
					case 0:
						PortAccess.Output(888, 24);
						break;
					case 1:
						PortAccess.Output(888, 36);
						break;
					case 2:
						PortAccess.Output(888, 66);
						break;
					case 3:
						PortAccess.Output(888, 129);
						break;
					case 4:
						PortAccess.Output(888, 0);
						break;
					case 5:
						PortAccess.Output(888, 129);
						break;
					case 6:
						PortAccess.Output(888, 195);
						break;
					case 7:
						PortAccess.Output(888, 231);
						break;
					case 8:
						PortAccess.Output(888, 255);
						break;
				}
			}
			else
			{
				((System.Windows.Forms.Timer)o2).Stop();
				((System.Windows.Forms.Timer)o2).Tick -= new EventHandler(dance_LEDs);
			}
			j+=1;
		}
		
		
		private void button_Dance_Click(object sender, System.EventArgs e) // Executes the timer and dance LEDs function
		{
			System.Windows.Forms.Timer timer02 = new System.Windows.Forms.Timer();
			timer02.Interval = 200;
			timer02.Tick += new EventHandler(dance_LEDs);
			timer02.Enabled = true;

		}

		void count_binary(object o1, EventArgs e1) //Makes the leds counting in binary form
		{
			
			if(i<256)
			{
				PortAccess.Output(adress, i);
				i+=1;
			}
			else
			{
				((System.Windows.Forms.Timer)o1).Stop();
				((System.Windows.Forms.Timer)o1).Tick -= new EventHandler(count_binary);
			}
		}

		private void button_Count_Click(object sender, System.EventArgs e) //Activates the timer for bnary counting delays
		{
			System.Windows.Forms.Timer timer01 = new System.Windows.Forms.Timer();
			timer01.Interval = 100;
			timer01.Tick += new EventHandler(count_binary);
			timer01.Enabled = true;
		}

		private void button_Address_Click(object sender, System.EventArgs e) //Sets the parallel port address for the program to run
		{
			if(this.textBox_port_adress.Text == "378")
				adress = 888;
			else
				adress = 632;
		}

		private void linkLabel1_LinkClicked_1(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
			// Change the color of the link text by setting LinkVisited 
			// to True.
			linkLabel1.LinkVisited = true;
   
			// Call the Process.Start method to open the default browser 
			// with a URL:
			System.Diagnostics.Process.Start("mailto:[e-mail]");
		}
	
	}
}