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TextBoxRenderer.IsSupported Property

Gets a value indicating whether the TextBoxRenderer class can be used to draw a text box with visual styles.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public static bool IsSupported { get; }

Property Value

Type: System.Boolean
true if the user has enabled visual styles in the operating system and visual styles are applied to the client area of application windows; otherwise, false.

If this property is false, the DrawTextBox method will throw an InvalidOperationException.

The following code example uses the IsSupported property to determine whether to use the DrawTextBox method. This code example is part of a larger example provided for the TextBoxRenderer class.

// Use DrawText with the current TextFormatFlags. 
protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);

    if (TextBoxRenderer.IsSupported)
    {
        TextBoxRenderer.DrawTextBox(e.Graphics, textBorder, this.Text,
            this.Font, textRectangle, textFlags, TextBoxState.Normal);

        this.Parent.Text = "CustomTextBox Enabled";
    }
    else
    {
        this.Parent.Text = "CustomTextBox Disabled";
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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