Font Class

Definition

public ref class Font sealed : MarshalByRefObject, ICloneable, IDisposable, System::Runtime::Serialization::ISerializable

[System.ComponentModel.TypeConverter(typeof(System.Drawing.FontConverter))]
[System.Serializable]
public sealed class Font : MarshalByRefObject, ICloneable, IDisposable, System.Runtime.Serialization.ISerializable

[System.ComponentModel.TypeConverter(typeof(System.Drawing.FontConverter))]
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class Font : MarshalByRefObject, ICloneable, IDisposable, System.Runtime.Serialization.ISerializable

[System.ComponentModel.TypeConverter(typeof(System.Drawing.FontConverter))]
public sealed class Font : MarshalByRefObject, ICloneable, IDisposable, System.Runtime.Serialization.ISerializable

[System.ComponentModel.TypeConverter("System.Drawing.FontConverter, System.Windows.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51")]
public sealed class Font : MarshalByRefObject, ICloneable, IDisposable, System.Runtime.Serialization.ISerializable

[<System.ComponentModel.TypeConverter(typeof(System.Drawing.FontConverter))>]
[<System.Serializable>]
type Font = class
 inherit MarshalByRefObject
 interface ICloneable
 interface IDisposable
 interface ISerializable

[<System.ComponentModel.TypeConverter(typeof(System.Drawing.FontConverter))>]
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type Font = class
 inherit MarshalByRefObject
 interface ICloneable
 interface ISerializable
 interface IDisposable

[<System.ComponentModel.TypeConverter(typeof(System.Drawing.FontConverter))>]
type Font = class
 inherit MarshalByRefObject
 interface ICloneable
 interface IDisposable
 interface ISerializable

[<System.ComponentModel.TypeConverter("System.Drawing.FontConverter, System.Windows.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51")>]
type Font = class
 inherit MarshalByRefObject
 interface ICloneable
 interface IDisposable
 interface ISerializable

Public NotInheritable Class Font
Inherits MarshalByRefObject
Implements ICloneable, IDisposable, ISerializable

Inheritance

Object

MarshalByRefObject

Font

Attributes

TypeConverterAttribute SerializableAttribute ComVisibleAttribute

Implements

ICloneable IDisposable ISerializable

Examples

The following code example demonstrates how to use the Font constructor and the Size, SizeInPoints, and Unit properties. This example is designed to be used with a Windows Form that contains a ComboBox named ComboBox1 that is populated with the strings "Bigger" and "Smaller" and a Label named Label1. Paste the following code into the form and associate the ComboBox1_SelectedIndexChanged method with the SelectedIndexChanged event of the ComboBox control.

private:
 void ComboBox1_SelectedIndexChanged(System::Object^ sender,
 System::EventArgs^ e)
 {

 // Cast the sender object back to a ComboBox.
 ComboBox^ ComboBox1 = (ComboBox^) sender;

 // Retrieve the selected item.
 String^ selectedString = (String^) ComboBox1->SelectedItem;

 // Convert it to lowercase.
 selectedString = selectedString->ToLower();

 // Declare the current size.
 float currentSize;

 // If Bigger is selected, get the current size from the 
 // Size property and increase it. Reset the font to the
 // new size, using the current unit.
 if (selectedString == "bigger")
 {
 currentSize = Label1->Font->Size;
 currentSize += 2.0F;
 Label1->Font =gcnew System::Drawing::Font(Label1->Font->Name, 
 currentSize, Label1->Font->Style, Label1->Font->Unit);

 }
 // If Smaller is selected, get the current size, in
 // points, and decrease it by 2. Reset the font with
 // the new size in points.
 if (selectedString == "smaller")
 {
 currentSize = Label1->Font->Size;
 currentSize -= 2.0F;
 Label1->Font = gcnew System::Drawing::Font(Label1->Font->Name, 
 currentSize, Label1->Font->Style);

 }
 }

private void ComboBox1_SelectedIndexChanged(System.Object sender, 
 System.EventArgs e)
{

 // Cast the sender object back to a ComboBox.
 ComboBox ComboBox1 = (ComboBox) sender;

 // Retrieve the selected item.
 string selectedString = (string) ComboBox1.SelectedItem;

 // Convert it to lowercase.
 selectedString = selectedString.ToLower();

 // Declare the current size.
 float currentSize;

 // Switch on the selected item. 
 switch(selectedString)
 {

 // If Bigger is selected, get the current size from the 
 // Size property and increase it. Reset the font to the
 // new size, using the current unit.
 case "bigger":
 currentSize = Label1.Font.Size;
 currentSize += 2.0F;
 Label1.Font = new Font(Label1.Font.Name, currentSize, 
 Label1.Font.Style, Label1.Font.Unit);

 // If Smaller is selected, get the current size, in points,
 // and decrease it by 1. Reset the font with the new size
 // in points.
 break;
 case "smaller":
 currentSize = Label1.Font.SizeInPoints;
 currentSize -= 1;
 Label1.Font = new Font(Label1.Font.Name, currentSize, 
 Label1.Font.Style);
 break;
 }
}

Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, _
 ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged

 ' Cast the sender object back to a ComboBox.
 Dim ComboBox1 As ComboBox = CType(sender, ComboBox)

 ' Retrieve the selected item.
 Dim selectedString As String = CType(ComboBox1.SelectedItem, String)

 ' Convert it to lowercase.
 selectedString = selectedString.ToLower()

 ' Declare the current size.
 Dim currentSize As Single

 ' Switch on the selected item. 
 Select Case selectedString

 ' If Bigger is selected, get the current size from the 
 ' Size property and increase it. Reset the font to the
 ' new size, using the current unit.
 Case "bigger"
 currentSize = Label1.Font.Size
 currentSize += 2.0F
 Label1.Font = New Font(Label1.Font.Name, currentSize, _
 Label1.Font.Style, Label1.Font.Unit)

 ' If Smaller is selected, get the current size, in points,
 ' and decrease it by 1. Reset the font with the new size
 ' in points.
 Case "smaller"
 currentSize = Label1.Font.SizeInPoints
 currentSize -= 1
 Label1.Font = New Font(Label1.Font.Name, currentSize, _
 Label1.Font.Style)
 End Select
End Sub

Remarks

For more information about how to construct fonts, see How to: Construct Font Families and Fonts. Windows Forms applications support TrueType fonts and have limited support for OpenType fonts. If you attempt to use a font that is not supported, or the font is not installed on the machine that is running the application, the Microsoft Sans Serif font will be substituted.

See also

• Using Fonts and Text