Font Klas

Definitie

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

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

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

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

Overname

Object

MarshalByRefObject

Font

Kenmerken

TypeConverterAttribute ComVisibleAttribute SerializableAttribute

Implementeringen

ICloneable IDisposable ISerializable

Voorbeelden

In het volgende codevoorbeeld ziet u hoe u de Font constructor en de , SizeInPointsen Unit eigenschappen Sizegebruikt. Dit voorbeeld is ontworpen voor gebruik met een Windows formulier dat een ComboBox met de naam ComboBox1 die is gevuld met de tekenreeksen 'Groter' en 'Kleiner' en een Label met de naam Label1. Plak de volgende code in het formulier en koppel de ComboBox1_SelectedIndexChanged methode aan de SelectedIndexChanged gebeurtenis van het ComboBox besturingselement.

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

Opmerkingen

Zie Voor meer informatie over het maken van lettertypen : Lettertypefamilies en lettertypen maken. Windows Forms toepassingen ondersteunen TrueType-lettertypen en hebben beperkte ondersteuning voor OpenType-lettertypen. Als u probeert een lettertype te gebruiken dat niet wordt ondersteund of het lettertype niet is geïnstalleerd op de computer waarop de toepassing wordt uitgevoerd, wordt het Microsoft Sans Serif-lettertype vervangen.

Zie ook

• Lettertypen en tekst gebruiken