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using System;
using System.Runtime.InteropServices;

namespace Cyotek.Windows.Forms
{
  // Cyotek Color Picker controls library
  // Copyright © 2013 Cyotek. All Rights Reserved.
  // http://cyotek.com/blog/tag/colorpicker

  // If you use this code in your applications, donations or attribution are welcome

  internal class NativeMethods
  {
    // ReSharper disable InconsistentNaming

    #region Constants

    public const int R2_NOT = 6; // Inverted drawing mode

    #endregion

    #region Constructors

    protected NativeMethods()
    { }

    #endregion

    #region Class Members

    [DllImport("user32.dll", EntryPoint = "GetDC", CallingConvention = CallingConvention.StdCall)]
    public static extern IntPtr GetDC(IntPtr hWnd);

    [DllImport("gdi32.dll", EntryPoint = "LineTo", CallingConvention = CallingConvention.StdCall)]
    public static extern bool LineTo(IntPtr hdc, int x, int y);

    [DllImport("gdi32.dll", EntryPoint = "MoveToEx", CallingConvention = CallingConvention.StdCall)]
    public static extern bool MoveToEx(IntPtr hdc, int x, int y, IntPtr lpPoint);

    [DllImport("user32.dll", EntryPoint = "ReleaseDC", CallingConvention = CallingConvention.StdCall)]
    public static extern IntPtr ReleaseDC(IntPtr hWnd, IntPtr hDC);

    [DllImport("gdi32.dll", EntryPoint = "SetROP2", CallingConvention = CallingConvention.StdCall)]
    public static extern int SetROP2(IntPtr hdc, int fnDrawMode);

    #endregion

    // ReSharper restore InconsistentNaming
  }
}