Exferia/Exferia_Formularios/Exferia_Formularios/PE_Esperando_BarraProgreso.cs

using Exferia_Aplicacion.Visualizacion;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Exferia_Formularios
{
    public partial class PE_Esperando_BarraProgreso : Form
    {
        #region Librerias Externas
        [DllImport("dwmapi.dll")]
        public static extern int DwmSetWindowAttribute(IntPtr hwnd, int attr, ref int attrValue, int attrSize);

        [DllImport("dwmapi.dll")]
        public static extern int DwmIsCompositionEnabled(ref int pfEnabled);

        [DllImport("dwmapi.dll")]
        public static extern int DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS pMarInset);
        #endregion

        #region Propiedades publicas
        public Color PE_Esperando_BarraProgreso_ColorTituloyBordes
        {
            set
            {
                lbl_Titulo.BackColor = value;
                pnl_Titulo.BackColor = value;
                pnl_BordeDerecho.BackColor = value;
                pnl_BordeInferior.BackColor = value;
                pnl_BordeIzquierdo.BackColor = value;

                lbl_Mensaje.Font = Fuentes.G_FONT_TEXTOS;
            }
            get
            {
                return lbl_Titulo.BackColor;
            }
        }

        public int PE_Esperando_BarraProgreso_Total
        {
            set
            {
                ex_pgb_Espera.Exferia_BarraProgreso_Total = value;
            }
            get
            {
                return ex_pgb_Espera.Exferia_BarraProgreso_Total;
            }
        }

        public int PE_Esperando_BarraProgreso_Actualizar
        {
            set
            {
                ex_pgb_Espera.Exferia_BarraProgreso_Actualizar = value;
            }
        }

        public string PE_Esperando_BarraProgreso_Mensaje
        {
            set
            {
                lbl_Mensaje.Text = value;
            }
            get
            {
                return lbl_Mensaje.Text;
            }
        }

        #endregion

        #region Constructores
        public PE_Esperando_BarraProgreso()
        {
            InitializeComponent();

            Repintar.Empezar(this);
        }

        public PE_Esperando_BarraProgreso(string _str_Mensaje)
        {
            InitializeComponent();

            Repintar.Empezar(this);

            //Carga Datos ..............................
            lbl_Mensaje.Text = _str_Mensaje;
        }

        public PE_Esperando_BarraProgreso(string _str_Mensaje, string _str_Titulo)
        {
            InitializeComponent();

            Repintar.Empezar(this);

            //Carga Datos ..............................
            lbl_Mensaje.Text = _str_Mensaje;
            if (_str_Titulo.Trim().Length > 0)
            {
                lbl_Titulo.Text = _str_Titulo;
            }
        }
        #endregion

        #region Control Grafico de la Pantalla

        protected override void WndProc(ref Message m)
        {
            //Sombra de la pantalla ..................................................
            if (m.Msg == WM_NCPAINT)// box shadow
            {
                if (g_bol_HabilitarSombra)
                {
                    var v = 2;
                    DwmSetWindowAttribute(Handle, 2, ref v, 4);
                    MARGINS margins = new MARGINS()
                    {
                        bottomHeight = 1,
                        leftWidth = 1,
                        rightWidth = 1,
                        topHeight = 1
                    };
                    DwmExtendFrameIntoClientArea(Handle, ref margins);
                }
            }

            base.WndProc(ref m);

            if (m.Msg == WM_NCHITTEST && (int)m.Result == HTCLIENT)     // drag the form
                m.Result = (IntPtr)HTCAPTION;
        }

        private void PE_Esperando_BarraProgreso_Resize(object sender, EventArgs e)
        {

            pnl_BordeIzquierdo.Size = new Size(2, Height - 3);

            pnl_BordeDerecho.Location = new Point(Width - 3, pnl_BordeDerecho.Location.Y);
            pnl_BordeDerecho.Size = new Size(2, Height - 3);

            pnl_BordeInferior.Location = new Point(pnl_BordeInferior.Location.X, Height - 3);
            pnl_BordeInferior.Size = new Size(Width - 4, 2);

            pnl_Titulo.Size = new Size(Width - 4, pnl_Titulo.Height);
        }

        #endregion

        #region Crear Sombra de la pantalla
        [DllImport("Gdi32.dll", EntryPoint = "CreateRoundRectRgn")]
        private static extern IntPtr CreateRoundRectRgn
        (
            int nLeftRect, // x-coordinate of upper-left corner
            int nTopRect, // y-coordinate of upper-left corner
            int nRightRect, // x-coordinate of lower-right corner
            int nBottomRect, // y-coordinate of lower-right corner
            int nWidthEllipse, // height of ellipse
            int nHeightEllipse // width of ellipse
         );

        private bool g_bol_HabilitarSombra;                     // variables for box shadow
        private const int CS_DROPSHADOW = 0x00020000;
        private const int WM_NCPAINT = 0x0085;
        private const int WM_ACTIVATEAPP = 0x001C;

        public struct MARGINS                           // struct for box shadow
        {
            public int leftWidth;
            public int rightWidth;
            public int topHeight;
            public int bottomHeight;
        }

        private const int WM_NCHITTEST = 0x84;          // variables for dragging the form
        private const int HTCLIENT = 0x1;
        private const int HTCAPTION = 0x2;

        protected override CreateParams CreateParams
        {
            get
            {
                g_bol_HabilitarSombra = CheckAeroEnabled();

                CreateParams cp = base.CreateParams;
                if (!g_bol_HabilitarSombra)
                    cp.ClassStyle |= CS_DROPSHADOW;

                return cp;
            }
        }

        private bool CheckAeroEnabled()
        {
            if (Environment.OSVersion.Version.Major >= 6)
            {
                int enabled = 0;
                DwmIsCompositionEnabled(ref enabled);
                return (enabled == 1) ? true : false;
            }
            return false;
        }
        #endregion
    }
}