//=============================================================================

// COPYRIGHT: Prosoft-Lanz

//=============================================================================

//

// $Workfile: Win32API.cs $

//

// PROJECT : CodeProject Components

// VERSION : 1.00

// CREATION : 19.02.2003

// AUTHOR : JCL

//

// DETAILS : This class implement Win32 API calls

//           and the contants used for these calls.

//

//-----------------------------------------------------------------------------

using System;

using System.Text;

using System.Drawing;

using System.Windows.Forms;

using System.Runtime.InteropServices;

namespace CodeProject.Win32API

{

	///////////////////////////////////////////////////////////////////////

	#region Generic declarations

	/// <summary>

	/// Rectangle parameters exposed as a structure.

	/// </summary>

	public struct RECT

	{

		/// <summary>

		/// Rectangle members.

		/// </summary>

		public int left, top, right, bottom;

	}

	#endregion

	///////////////////////////////////////////////////////////////////////

	#region Util class

	/// <summary>

	/// Utility functions.

	/// </summary>

	public sealed class API

	{

		private API() {}	// To remove the constructor from the documentation!

		/// <summary>

		/// Get true multiscreen size.

		/// </summary>

		public static Rectangle TrueScreenRect

		{

			get

			{

				// get the biggest screen area

				Rectangle rectScreen = Screen.PrimaryScreen.WorkingArea;

				int left = rectScreen.Left;

				int top = rectScreen.Top;

				int right = rectScreen.Right;

				int bottom = rectScreen.Bottom;

				foreach (Screen screen in Screen.AllScreens)

				{

					left = Math.Min(left, screen.WorkingArea.Left);

					right = Math.Max(right, screen.WorkingArea.Right);

					top = Math.Min(top, screen.WorkingArea.Top);

					bottom = Math.Max(bottom, screen.WorkingArea.Bottom);

				}

				return new Rectangle(left, top, right-left, bottom-top);

			}

		}

	}

	#endregion

	///////////////////////////////////////////////////////////////////////

	#region USER32 class

	/// <summary>

	/// Class to expose USER32 API functions.

	/// </summary>

	public sealed class USER32

	{

		private USER32() {}	// To remove the constructor from the documentation!

		[DllImport("user32", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

		internal static extern int GetWindowRect(IntPtr hWnd, ref RECT rect);

		[DllImport("user32", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

		internal static extern int MoveWindow(IntPtr hWnd, int x, int y, int w, int h, int repaint);

		[DllImport("user32", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

		internal static extern IntPtr GetActiveWindow();

		[DllImport("user32", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

		internal static extern int GetClassName(IntPtr hwnd, StringBuilder lpClassName, int nMaxCount);

	}

	#endregion

}