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Font.SizeInPoints Property


Gets the em-size, in points, of this Font.

Namespace:   System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

public float SizeInPoints { get; }

Property Value

Type: System.Single

The em-size, in points, of this Font.

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". 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;

    // Switch on the selected item. 

            // 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, 

.NET Framework
Available since 1.1
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