namespace System.Windows.Forms
{
    [ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.ToolStrip | ToolStripItemDesignerAvailability.MenuStrip | ToolStripItemDesignerAvailability.ContextMenuStrip)]
    public class ToolStripTextBox : ToolStripControlHost
    {
        public int GetFirstCharIndexOfCurrentLine();
    }
}