Desktop News Ticker

Check Out the custom control that implements a news ticker. Add a new class to your project, then paste this code:

using System;
using System.Text;
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms;

class NewsTicker : Panel {
private Timer mScroller;    // Scroll timer
private int mOffset;        // Offset of scrolled text
private string mText;       // Text to scroll
private Size mPixels;       // Width of text in pixels
private Bitmap mBuffer;     // Double-buffering buffer

public NewsTicker() {
    mScroller = new Timer();
    mScroller.Interval = 30;
    mScroller.Enabled = false;
    mScroller.Tick += DoScroll;
}
[Browsable(true)]
public override string Text {
    get { return mText; }
    set {
      mText = value;
      mScroller.Enabled = mText.Length > 0;
      mPixels = TextRenderer.MeasureText(mText, this.Font);
      mOffset = this.Width;
    }
}
private void DoScroll(object sender, EventArgs e) {
    // Adjust offset and paint
    mOffset -= 1;
    if (mOffset < -mPixels.Width) mOffset = this.Width;
    Invalidate();
}
protected override void OnPaintBackground(PaintEventArgs e) {
    // Do nothing
}
protected override void OnPaint(PaintEventArgs e) {
    if (mBuffer == null || mBuffer.Width != this.Width || mBuffer.Height != this.Height)
      mBuffer = new Bitmap(this.Width, this.Height);
    Graphics gr = Graphics.FromImage(mBuffer);
    Brush bbr = new SolidBrush(this.BackColor);
    Brush fbr = new SolidBrush(this.ForeColor);
    gr.FillRectangle(bbr, new Rectangle(0, 0, this.Width, this.Height));
    gr.DrawString(mText, this.Font, fbr, mOffset, 0);
    e.Graphics.DrawImage(mBuffer, 0, 0);
    bbr.Dispose();
    fbr.Dispose();
    gr.Dispose();
}
}

Build the project, then drop a NewsTicker from the Toolbox onto the form. Set the Text property in the designer and the text should immediately start ticking.

3 Replies

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Niradhip Chakraborty18y ago
Accepted answer
Check Out the custom control that implements a news ticker. Add a new class to your project, then paste this code:

using System;
using System.Text;
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms;

class NewsTicker : Panel {
private Timer mScroller;    // Scroll timer
private int mOffset;        // Offset of scrolled text
private string mText;       // Text to scroll
private Size mPixels;       // Width of text in pixels
private Bitmap mBuffer;     // Double-buffering buffer

public NewsTicker() {
    mScroller = new Timer();
    mScroller.Interval = 30;
    mScroller.Enabled = false;
    mScroller.Tick += DoScroll;
}
[Browsable(true)]
public override string Text {
    get { return mText; }
    set {
      mText = value;
      mScroller.Enabled = mText.Length > 0;
      mPixels = TextRenderer.MeasureText(mText, this.Font);
      mOffset = this.Width;
    }
}
private void DoScroll(object sender, EventArgs e) {
    // Adjust offset and paint
    mOffset -= 1;
    if (mOffset < -mPixels.Width) mOffset = this.Width;
    Invalidate();
}
protected override void OnPaintBackground(PaintEventArgs e) {
    // Do nothing
}
protected override void OnPaint(PaintEventArgs e) {
    if (mBuffer == null || mBuffer.Width != this.Width || mBuffer.Height != this.Height)
      mBuffer = new Bitmap(this.Width, this.Height);
    Graphics gr = Graphics.FromImage(mBuffer);
    Brush bbr = new SolidBrush(this.BackColor);
    Brush fbr = new SolidBrush(this.ForeColor);
    gr.FillRectangle(bbr, new Rectangle(0, 0, this.Width, this.Height));
    gr.DrawString(mText, this.Font, fbr, mOffset, 0);
    e.Graphics.DrawImage(mBuffer, 0, 0);
    bbr.Dispose();
    fbr.Dispose();
    gr.Dispose();
}
}

Build the project, then drop a NewsTicker from the Toolbox onto the form. Set the Text property in the designer and the text should immediately start ticking.
raja ram17y ago
Hi,

I have gone through the code. its works perfectly fine. But when i am trying to conver the same in vb.net, But its not working. Please provide me the same in VB.Net.
Revathi17y ago
Hi,

The solution provided works great. I just have some trouble displaying the ticker news in different color. For example some urgent news need to be displayed in red while the rest in a different color within the same ticker.

Really hope someone can guide me on this. Thanks alot in advance.