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using System;
using System.Runtime.InteropServices;

namespace CustomTreeViewLabelEdit
{
  internal static class NativeMethods
  {
    // Extending the LabelEdit functionality of a TreeView to include validation
    // http://cyotek.com/blog/extending-the-labeledit-functionality-of-a-treeview-to-include-validation

    #region Constants

    public const int TVM_GETEDITCONTROL = 0x110F;

    public const int WM_SETTEXT = 0xC;

    #endregion

    #region Class Members

    [DllImport("USER32", EntryPoint = "SendMessage", CharSet = CharSet.Auto, SetLastError = true)]
    public static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

    [DllImport("USER32", EntryPoint = "SendMessage", CharSet = CharSet.Auto, SetLastError = true)]
    public static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, string lParam);

    #endregion
  }
}