using System;
using System.Windows.Forms;
using System.Drawing;

public class PushMe2 : Form {

  Button pushMeButton;

  public PushMe2() {
    pushMeButton = new Button(); 
    pushMeButton.Text = "Push Me";
    pushMeButton.Height = 60;
    pushMeButton.Width = 80;
    pushMeButton.Top = 60;
    pushMeButton.Left = 60;

    pushMeButton.Click += new EventHandler(ButtonClicked);

    this.Controls.Add(pushMeButton);

    this.Height = 200;
    this.Width = 200;
    this.StartPosition = FormStartPosition.CenterScreen;
    this.Visible = true;
  }

  public void ButtonClicked(object source, EventArgs e) {
    Button b = (Button)source;
    if ( b.Text == "Push Me" ) {
      b.Text = "Ouch";
    }
    else {
      b.Text = "Push Me";
    }
  }

  static void Main() {
    Application.Run(new PushMe2());
  }
}


           
          

   

    using System;
  using System.Drawing;
  using System.Collections;
  using System.ComponentModel;
  using System.Windows.Forms;
  using System.Data;

  public class ButtonForm : System.Windows.Forms.Form
  {
    private System.Windows.Forms.Button btnImage;
    private System.Windows.Forms.Button btnStandard;
    private System.Windows.Forms.Button btnPopup;
    private System.Windows.Forms.Button btnFlat;

    // Hold the current text alignment
    ContentAlignment currAlignment = ContentAlignment.MiddleCenter;
    int currEnumPos = 0;
    
    public ButtonForm()
    {
      InitializeComponent();

      // Set btnStandard as default accept.
      this.AcceptButton = btnStandard;

      CenterToScreen();
    }
    private void InitializeComponent()
    {
      this.btnStandard = new System.Windows.Forms.Button();
      this.btnFlat = new System.Windows.Forms.Button();
      this.btnImage = new System.Windows.Forms.Button();
      this.btnPopup = new System.Windows.Forms.Button();
      this.SuspendLayout();
      // 
      // btnStandard
      // 
      this.btnStandard.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);
      this.btnStandard.ForeColor = System.Drawing.SystemColors.ControlText;
      this.btnStandard.Location = new System.Drawing.Point(16, 80);
      this.btnStandard.Name = "btnStandard";
      this.btnStandard.Size = new System.Drawing.Size(312, 88);
      this.btnStandard.TabIndex = 2;
      this.btnStandard.Text = "I am a standard button";
      this.btnStandard.Click += new System.EventHandler(this.btnStandard_Click);
      // 
      // btnFlat
      // 
      this.btnFlat.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
      this.btnFlat.ForeColor = System.Drawing.Color.Blue;
      this.btnFlat.Location = new System.Drawing.Point(16, 24);
      this.btnFlat.Name = "btnFlat";
      this.btnFlat.Size = new System.Drawing.Size(152, 32);
      this.btnFlat.TabIndex = 0;
      this.btnFlat.Text = "I am flat...";
      // 
      // btnImage
      // 
      this.btnImage.Font = new System.Drawing.Font("Microsoft Sans Serif", 20F, System.Drawing.FontStyle.Bold);
      this.btnImage.Image = new Bitmap("winter.jpg");
      this.btnImage.Location = new System.Drawing.Point(16, 192);
      this.btnImage.Name = "btnImage";
      this.btnImage.Size = new System.Drawing.Size(312, 72);
      this.btnImage.TabIndex = 3;
      this.btnImage.Text = "Image Button";
      this.btnImage.TextAlign = System.Drawing.ContentAlignment.TopCenter;
      // 
      // btnPopup
      // 
      this.btnPopup.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
      this.btnPopup.ForeColor = System.Drawing.SystemColors.ControlText;
      this.btnPopup.Location = new System.Drawing.Point(176, 24);
      this.btnPopup.Name = "btnPopup";
      this.btnPopup.Size = new System.Drawing.Size(152, 32);
      this.btnPopup.TabIndex = 1;
      this.btnPopup.Text = "I am a Popup!";
      // 
      // ButtonForm
      // 
      this.AcceptButton = this.btnStandard;
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(340, 269);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.btnImage,
                                      this.btnStandard,
                                      this.btnPopup,
                                      this.btnFlat});
      this.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
      this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
      this.Name = "ButtonForm";
      this.Text = "Buttons";
      this.ResumeLayout(false);

    }
    
    protected void btnStandard_Click (object sender, System.EventArgs e)
    {      
      Array values = Enum.GetValues(currAlignment.GetType());
    
      currEnumPos++;
      if(currEnumPos >= values.Length)
        currEnumPos = 0;
      
      currAlignment = (ContentAlignment)ContentAlignment.Parse(currAlignment.GetType(), 
              values.GetValue(currEnumPos).ToString());
      btnStandard.TextAlign = currAlignment;

      btnStandard.Text = currAlignment.ToString();
    }

    public static void Main(string[] args) 
    {
      Application.Run(new ButtonForm());
    }
  }


           
          

   

    using System;
  using System.Drawing;
  using System.Collections;
  using System.ComponentModel;
  using System.Windows.Forms;
  using System.Data;

  public class ButtonForm : System.Windows.Forms.Form
  {
    private System.Windows.Forms.Button btnImage;
    private System.Windows.Forms.Button btnStandard;
    private System.Windows.Forms.Button btnPopup;
    private System.Windows.Forms.Button btnFlat;

    // Hold the current text alignment
    ContentAlignment currAlignment = ContentAlignment.MiddleCenter;
    int currEnumPos = 0;
    
    public ButtonForm()
    {
      InitializeComponent();

      // Set btnStandard as default accept.
      this.AcceptButton = btnStandard;

      CenterToScreen();
    }
    private void InitializeComponent()
    {
      this.btnStandard = new System.Windows.Forms.Button();
      this.btnFlat = new System.Windows.Forms.Button();
      this.btnImage = new System.Windows.Forms.Button();
      this.btnPopup = new System.Windows.Forms.Button();
      this.SuspendLayout();
      // 
      // btnStandard
      // 
      this.btnStandard.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);
      this.btnStandard.ForeColor = System.Drawing.SystemColors.ControlText;
      this.btnStandard.Location = new System.Drawing.Point(16, 80);
      this.btnStandard.Name = "btnStandard";
      this.btnStandard.Size = new System.Drawing.Size(312, 88);
      this.btnStandard.TabIndex = 2;
      this.btnStandard.Text = "I am a standard button";
      this.btnStandard.Click += new System.EventHandler(this.btnStandard_Click);
      // 
      // btnFlat
      // 
      this.btnFlat.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
      this.btnFlat.ForeColor = System.Drawing.Color.Blue;
      this.btnFlat.Location = new System.Drawing.Point(16, 24);
      this.btnFlat.Name = "btnFlat";
      this.btnFlat.Size = new System.Drawing.Size(152, 32);
      this.btnFlat.TabIndex = 0;
      this.btnFlat.Text = "I am flat...";
      // 
      // btnImage
      // 
      this.btnImage.Font = new System.Drawing.Font("Microsoft Sans Serif", 20F, System.Drawing.FontStyle.Bold);
      this.btnImage.Image = new Bitmap("winter.jpg");
      this.btnImage.Location = new System.Drawing.Point(16, 192);
      this.btnImage.Name = "btnImage";
      this.btnImage.Size = new System.Drawing.Size(312, 72);
      this.btnImage.TabIndex = 3;
      this.btnImage.Text = "Image Button";
      this.btnImage.TextAlign = System.Drawing.ContentAlignment.TopCenter;
      // 
      // btnPopup
      // 
      this.btnPopup.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
      this.btnPopup.ForeColor = System.Drawing.SystemColors.ControlText;
      this.btnPopup.Location = new System.Drawing.Point(176, 24);
      this.btnPopup.Name = "btnPopup";
      this.btnPopup.Size = new System.Drawing.Size(152, 32);
      this.btnPopup.TabIndex = 1;
      this.btnPopup.Text = "I am a Popup!";
      // 
      // ButtonForm
      // 
      this.AcceptButton = this.btnStandard;
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(340, 269);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.btnImage,
                                      this.btnStandard,
                                      this.btnPopup,
                                      this.btnFlat});
      this.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
      this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
      this.Name = "ButtonForm";
      this.Text = "Buttons";
      this.ResumeLayout(false);

    }
    
    protected void btnStandard_Click (object sender, System.EventArgs e)
    {      
      Array values = Enum.GetValues(currAlignment.GetType());
    
      currEnumPos++;
      if(currEnumPos >= values.Length)
        currEnumPos = 0;
      
      currAlignment = (ContentAlignment)ContentAlignment.Parse(currAlignment.GetType(), 
              values.GetValue(currEnumPos).ToString());
      btnStandard.TextAlign = currAlignment;

      btnStandard.Text = currAlignment.ToString();
    }

    public static void Main(string[] args) 
    {
      Application.Run(new ButtonForm());
    }
  }


           
          

   


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

public class Form1 : Form
{
   [DllImport("User32.dll")]
   private static extern short GetAsyncKeyState( System.Windows.Forms.Keys vKey); 
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.Label lbl;
  private System.Windows.Forms.Button cmdAsyncState;

  public Form1() {
        InitializeComponent();
  }

  private void Form1_KeyPress(object sender, KeyPressEventArgs e)
  {
    e.Handled = true;
  }

  private void Form1_KeyDown(object sender, KeyEventArgs e)
  {
    lbl.Text = "Key Down: " + e.KeyValue.ToString();
    lbl.Text += "
Key Code: " + e.KeyCode.ToString();
    lbl.Text += "
Key Data: " + e.KeyData.ToString();

    if ((e.Modifiers & Keys.Shift) == Keys.Shift)
    {
      lbl.Text += "
" + "Shift was held down.";
    }

    if ((e.Modifiers & Keys.Control) == Keys.Control)
    {
      lbl.Text += "
" + "Control was held down.";
    }
    if (e.Alt)
    {
      lbl.Text += "
" + "Alt was held down.";
    }
  }

  private void cmdAsyncState_Click(object sender, EventArgs e)
  {
    int state = Convert.ToInt32(GetAsyncKeyState(Keys.A).ToString());
    switch (state)
    {
      case 0:
        lbl.Text = "A has not been pressed since the last call.";
        break;
      case 1:
        lbl.Text = "A is not currently pressed, but has been pressed since the last call.";
          break;
      case -32767:
        lbl.Text = "A is currently pressed.";
        break;
    }
  }

  private void InitializeComponent()
  {
    this.textBox1 = new System.Windows.Forms.TextBox();
    this.lbl = new System.Windows.Forms.Label();
    this.cmdAsyncState = new System.Windows.Forms.Button();
    this.SuspendLayout();
    // 
    // textBox1
    // 
    this.textBox1.Location = new System.Drawing.Point(36, 36);
    this.textBox1.Name = "textBox1";
    this.textBox1.Size = new System.Drawing.Size(205, 21);
    this.textBox1.TabIndex = 0;
    this.textBox1.Text = "<Text will never appear here>";
    // 
    // lbl
    // 
    this.lbl.AutoSize = true;
    this.lbl.Location = new System.Drawing.Point(35, 77);
    this.lbl.Name = "lbl";
    this.lbl.Size = new System.Drawing.Size(0, 0);
    this.lbl.TabIndex = 1;
    // 
    // cmdAsyncState
    // 
    this.cmdAsyncState.Location = new System.Drawing.Point(36, 202);
    this.cmdAsyncState.Name = "cmdAsyncState";
    this.cmdAsyncState.Size = new System.Drawing.Size(141, 24);
    this.cmdAsyncState.TabIndex = 2;
    this.cmdAsyncState.Text = "GetAsyncState() for "A"";
    this.cmdAsyncState.Click += new System.EventHandler(this.cmdAsyncState_Click);
    // 
    // Form1
    // 
    this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
    this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
    this.ClientSize = new System.Drawing.Size(292, 266);
    this.Controls.Add(this.cmdAsyncState);
    this.Controls.Add(this.lbl);
    this.Controls.Add(this.textBox1);
    this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
    this.KeyPreview = true;
    this.Name = "Form1";
    this.Text = "KeyTest";
    this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.Form1_KeyPress);
    this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.Form1_KeyDown);
    this.ResumeLayout(false);
    this.PerformLayout();

  }


  [STAThread]
  static void Main()
  {
    Application.EnableVisualStyles();
    Application.Run(new Form1());
  }

}


           
          

   

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form
{
    private System.Windows.Forms.Button button1;

  public Form1() {
        InitializeComponent();
  }

    private void InitializeComponent()
    {
        this.button1 = new System.Windows.Forms.Button();
        this.SuspendLayout();

        this.button1.Image = new Bitmap("winter.jpg");
        this.button1.ImageAlign = System.Drawing.ContentAlignment.TopRight;
        this.button1.Location = new System.Drawing.Point(12, 99);
        this.button1.Name = "button1";
        this.button1.Size = new System.Drawing.Size(132, 74);
        this.button1.TabIndex = 1;
        this.button1.Text = "button1";
        this.button1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
        this.button1.UseVisualStyleBackColor = true;
 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(299, 271);

        this.Controls.Add(this.button1);
        this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        this.Name = "ImagesInCommonControls";
        this.Text = "ImagesInCommonControls";
        this.ResumeLayout(false);

    }

  [STAThread]
  static void Main()
  {
    Application.EnableVisualStyles();
    Application.Run(new Form1());
  }

}



           
          

   
 


using System;
using System.Drawing;
using System.Windows.Forms;
   
class ButtonStyles: Form
{
     public static void Main()
     {
          Application.Run(new ButtonStyles());
     }
     public ButtonStyles()
     {
          int y = 0;
   
          foreach (FlatStyle fs in Enum.GetValues(typeof(FlatStyle)))
          {
               Button btn    = new Button();
               btn.Parent    = this;
               btn.FlatStyle = fs;
               btn.Text      = fs.ToString();
               btn.Location  = new Point(50, y += 50);
          }
     }
}

    

   
 


using System;
using System.Drawing;
using System.Windows.Forms;
   
class SimpleButton: Form
{
     public static void Main()
     {
          Application.Run(new SimpleButton());
     }
     public SimpleButton()
     {
          Text = "Simple Button";
   
          Button btn   = new Button();
          btn.Parent   = this;
          btn.Text     = "Click Me!";
          btn.Location = new Point(100, 100);
          btn.Click   += new EventHandler(ButtonOnClick);
     }
     void ButtonOnClick(object obj, EventArgs ea)
     {
          Graphics grfx   = CreateGraphics();
          Point    ptText = Point.Empty;
          string   str    = "Button clicked!";
   
          grfx.DrawString(str, Font, new SolidBrush(ForeColor), ptText);
          grfx.Dispose();
     }
}