// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

namespace System.Windows.Forms;

/// <summary>
///  Specifies how a <see cref="RichTextBox"/> control displays scroll bars.
/// </summary>
public enum RichTextBoxScrollBars
{
    /// <summary>
    ///  Never display scroll bars.
    /// </summary>
    None = 0,

    /// <summary>
    ///  Display only a horizontal scroll bar when needed.
    /// </summary>
    Horizontal = RichTextBoxConstants.RTB_HORIZ,

    /// <summary>
    ///  Display only a vertical scroll bar when needed.
    /// </summary>
    Vertical = RichTextBoxConstants.RTB_VERT,

    /// <summary>
    ///  Display both a horizontal and a vertical scroll bar when needed.
    /// </summary>
    Both = Horizontal | Vertical,

    /// <summary>
    ///  Always display only a horizontal scroll bar.
    /// </summary>
    ForcedHorizontal = RichTextBoxConstants.RTB_FORCE | Horizontal,

    /// <summary>
    ///  Always display only a vertical scroll bar.
    /// </summary>
    ForcedVertical = RichTextBoxConstants.RTB_FORCE | Vertical,

    /// <summary>
    ///  Always display both a horizontal and a vertical scroll bar.
    /// </summary>
    ForcedBoth = ForcedHorizontal | ForcedVertical,

    // Be careful when adding new members -- this enum is part normal, part flags
}
