I need to find an example of making a window with a menu bar that just displays an image. The Image must resize if the window is resized and also provide scrolling of the image at 100% if an option is turned on in the menu.
I've written one - see the end of this message. Is that what you required?
-- Ian Griffiths - http://www.interact-sw.co.uk/iangblog/ DevelopMentor - http://www.develop.com/
using System; using System.IO; using System.Drawing; using System.Windows.Forms;
namespace ScrollImage
{
public class ImageForm : System.Windows.Forms.Form
{
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.MainMenu mainMenu1;
private System.Windows.Forms.MenuItem menuFile;
private System.Windows.Forms.MenuItem menuFileOpen;
private System.Windows.Forms.MenuItem menuItem3;
private System.Windows.Forms.MenuItem menuExit;
private System.Windows.Forms.MenuItem menuView;
private System.Windows.Forms.MenuItem menuNaturalSize;
private System.Windows.Forms.OpenFileDialog openImageFileDialog;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null; public ImageForm()
{
//
// Required for Windows Form Designer support
//
InitializeComponent(); UpdateNaturalSize();
}
private bool naturalSize; private void UpdateNaturalSize()
{
menuNaturalSize.Checked = naturalSize;
if (naturalSize)
{
pictureBox1.Dock = DockStyle.None;
pictureBox1.SizeMode = PictureBoxSizeMode.AutoSize;
AutoScroll = true;
}
else
{
AutoScroll = false;
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox1.Dock = DockStyle.Fill;
}
} /// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.mainMenu1 = new System.Windows.Forms.MainMenu();
this.menuFile = new System.Windows.Forms.MenuItem();
this.menuFileOpen = new System.Windows.Forms.MenuItem();
this.menuItem3 = new System.Windows.Forms.MenuItem();
this.menuExit = new System.Windows.Forms.MenuItem();
this.menuView = new System.Windows.Forms.MenuItem();
this.menuNaturalSize = new System.Windows.Forms.MenuItem();
this.openImageFileDialog = new
System.Windows.Forms.OpenFileDialog();
this.SuspendLayout();
//
// pictureBox1
//
this.pictureBox1.Location = new System.Drawing.Point(0, 0);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(292, 270);
this.pictureBox1.SizeMode =
System.Windows.Forms.PictureBoxSizeMode.AutoSize;
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
//
// mainMenu1
//
this.mainMenu1.MenuItems.AddRange(new
System.Windows.Forms.MenuItem[] {this.menuFile,
this.menuView});
//
// menuFile
//
this.menuFile.Index = 0;
this.menuFile.MenuItems.AddRange(new
System.Windows.Forms.MenuItem[] {this.menuFileOpen,
this.menuItem3,
this.menuExit});
this.menuFile.Text = "&File";
//
// menuFileOpen
//
this.menuFileOpen.Index = 0;
this.menuFileOpen.Shortcut =
System.Windows.Forms.Shortcut.CtrlO;
this.menuFileOpen.Text = "&Open...";
this.menuFileOpen.Click += new
System.EventHandler(this.menuFileOpen_Click);
//
// menuItem3
//
this.menuItem3.Index = 1;
this.menuItem3.Text = "-";
//
// menuExit
//
this.menuExit.Index = 2;
this.menuExit.Text = "E&xit";
//
// menuView
//
this.menuView.Index = 1;
this.menuView.MenuItems.AddRange(new
System.Windows.Forms.MenuItem[] { this.menuNaturalSize});
this.menuView.Text = "&View";
//
// menuNaturalSize
//
this.menuNaturalSize.Index = 0;
this.menuNaturalSize.Shortcut =
System.Windows.Forms.Shortcut.CtrlL;
this.menuNaturalSize.Text = "&Natural Size";
this.menuNaturalSize.Click += new
System.EventHandler(this.menuNaturalSize_Click);
//
// ImageForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 270);
this.Controls.Add(this.pictureBox1);
this.Menu = this.mainMenu1;
this.Name = "ImageForm";
this.Text = "ImageForm";
this.ResumeLayout(false); }
#endregion /// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new ImageForm());
} private void menuFileOpen_Click(object sender, System.EventArgs e)
{
if (openImageFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
Image img;
using (Stream imageStream =
openImageFileDialog.OpenFile())
{
img = Image.FromStream(imageStream);
}
pictureBox1.Image = img;
}
catch (Exception x)
{
MessageBox.Show("Error opening file: " + x.Message,
"Error");
}
}
} private void menuNaturalSize_Click(object sender, System.EventArgs
e)
{
naturalSize = !naturalSize;
UpdateNaturalSize();
}
}
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