Writing text to the system tray instead of an icon

Question

I am trying to display 2-3 updatable characters in the system tray rather than display an .ico file - similar to what CoreTemp does when they display the temperature in the

Answer 1

This gives me a quite good looking display of a two digit string:

private void button1_Click(object sender, EventArgs e)
{
    CreateTextIcon("89");
}

public void CreateTextIcon(string str)
{
    Font fontToUse = new Font("Microsoft Sans Serif", 16, FontStyle.Regular, GraphicsUnit.Pixel);
    Brush brushToUse = new SolidBrush(Color.White);
    Bitmap bitmapText = new Bitmap(16, 16);
    Graphics g = System.Drawing.Graphics.FromImage(bitmapText);

    IntPtr hIcon;

    g.Clear(Color.Transparent);
    g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixelGridFit;
    g.DrawString(str, fontToUse, brushToUse, -4, -2);
    hIcon = (bitmapText.GetHicon());
    notifyIcon1.Icon = System.Drawing.Icon.FromHandle(hIcon);
    //DestroyIcon(hIcon.ToInt32);
}

What I changed:

1. Use a larger font size, but move the x and y offset further to the left and top (-4, -2).

2. Set TextRenderingHint on the Graphics object to disable anti-aliasing.

It seems impossible to draw more than 2 digits or characters. The icons have a square format. Any text longer than two characters would mean reducing the height of the text a lot.

The sample where you select the keyboard layout (ENG) is actually not a notification icon in the tray area but its very own shell toolbar.

---

The best I could achieve to display 8.55:

private void button1_Click(object sender, EventArgs e)
{
    CreateTextIcon("8'55");
}

public void CreateTextIcon(string str)
{
    Font fontToUse = new Font("Trebuchet MS", 10, FontStyle.Regular, GraphicsUnit.Pixel);
    Brush brushToUse = new SolidBrush(Color.White);
    Bitmap bitmapText = new Bitmap(16, 16);
    Graphics g = System.Drawing.Graphics.FromImage(bitmapText);

    IntPtr hIcon;

    g.Clear(Color.Transparent);
    g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixelGridFit;
    g.DrawString(str, fontToUse, brushToUse, -2, 0);
    hIcon = (bitmapText.GetHicon());
    notifyIcon1.Icon = System.Drawing.Icon.FromHandle(hIcon);
    //DestroyIcon(hIcon.ToInt32);
}

with the following changes:

1. Use Trebuchet MS which is a very narrow font.
2. Use the single quote instead of the dot because it has less space at the sides.
3. Use font size 10 and adapt the offsets adequately.