How to: Align Drawn Text

When you perform custom drawing, you may often want to center drawn text on a form or control. You can easily align text drawn with the DrawString or DrawText methods by creating the correct formatting object and setting the appropriate format flags.

To draw centered text with GDI+ (DrawString)

• Use a StringFormat with the appropriate DrawString method to specify centered text.

  Dim text1 As String = "Use StringFormat and Rectangle objects to" & _
      " center text in a rectangle." 
  Dim font1 As New Font("Arial", 12, FontStyle.Bold, GraphicsUnit.Point)
  Try 
      Dim rect1 As New Rectangle(10, 10, 130, 140)
  
      ' Create a StringFormat object with the each line of text, and the block 
      ' of text centered on the page. 
      Dim stringFormat As New StringFormat()
      stringFormat.Alignment = StringAlignment.Center
      stringFormat.LineAlignment = StringAlignment.Center
  
      ' Draw the text and the surrounding rectangle.
      e.Graphics.DrawString(text1, font1, Brushes.Blue, rect1, stringFormat)
      e.Graphics.DrawRectangle(Pens.Black, rect1)
  Finally
      font1.Dispose()
  End Try
  

  string text1 = "Use StringFormat and Rectangle objects to" 
      + " center text in a rectangle.";
  using (Font font1 = new Font("Arial", 12, FontStyle.Bold, GraphicsUnit.Point))
  {
      Rectangle rect1 = new Rectangle(10, 10, 130, 140);
  
      // Create a StringFormat object with the each line of text, and the block 
      // of text centered on the page.
      StringFormat stringFormat = new StringFormat();
      stringFormat.Alignment = StringAlignment.Center;
      stringFormat.LineAlignment = StringAlignment.Center;
  
      // Draw the text and the surrounding rectangle.
      e.Graphics.DrawString(text1, font1, Brushes.Blue, rect1, stringFormat);
      e.Graphics.DrawRectangle(Pens.Black, rect1);
  }
  

To draw centered text with GDI (DrawText)

• Use the TextFormatFlags enumeration for wrapping as well as vertically and horizontally centering text with the appropriate DrawText method.

  Dim text2 As String = "Use TextFormatFlags and Rectangle objects to" & _
          " center text in a rectangle." 
  
  Dim font2 As New Font("Arial", 12, FontStyle.Bold, GraphicsUnit.Point)
  Try 
      Dim rect2 As New Rectangle(150, 10, 130, 140)
  
      ' Create a TextFormatFlags with word wrapping, horizontal center and 
      ' vertical center specified. 
      Dim flags As TextFormatFlags = TextFormatFlags.HorizontalCenter Or _
          TextFormatFlags.VerticalCenter Or TextFormatFlags.WordBreak
  
      ' Draw the text and the surrounding rectangle.
      TextRenderer.DrawText(e.Graphics, text2, font2, rect2, Color.Blue, flags)
      e.Graphics.DrawRectangle(Pens.Black, rect2)
  Finally
      font2.Dispose()
  End Try
  

  string text2 = "Use TextFormatFlags and Rectangle objects to"
   + " center text in a rectangle.";
  
  using (Font font2 = new Font("Arial", 12, FontStyle.Bold, GraphicsUnit.Point))
  {
      Rectangle rect2 = new Rectangle(150, 10, 130, 140);
  
      // Create a TextFormatFlags with word wrapping, horizontal center and 
      // vertical center specified.
      TextFormatFlags flags = TextFormatFlags.HorizontalCenter |
          TextFormatFlags.VerticalCenter | TextFormatFlags.WordBreak;
  
      // Draw the text and the surrounding rectangle.
      TextRenderer.DrawText(e.Graphics, text2, font2, rect2, Color.Blue, flags);
      e.Graphics.DrawRectangle(Pens.Black, rect2);
  }
  

Compiling the Code

The preceding code examples are designed for use with Windows Forms, and they require PaintEventArgse, which is a parameter of PaintEventHandler.

See Also

Tasks

How to: Draw Text with GDI

How to: Construct Font Families and Fonts

Other Resources

Using Fonts and Text