using AForge.Video.DirectShow;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using TiJianJieGuoGuanLi;


namespace TiJianJieGuo
{                                
    public partial class frm_cj : Form
    {
        HotKeys h = new HotKeys();

        frmYiShengJieGuoLuRuNew ysjglr;

        public frm_cj()
        {
            InitializeComponent();
        }
        public frm_cj(frmYiShengJieGuoLuRuNew ysjglr1, string sb, string fbl) : this()
        {
            ysjglr = ysjglr1;
            videoDevice = new VideoCaptureDevice(sb);
            var videoCapabilities = videoDevice.VideoCapabilities;
            int h = int.Parse(fbl.Split('x')[1]);
            int w = int.Parse(fbl.Split('x')[0]);
            this.Width = w;
            this.Height = h;
            foreach (var vc in videoCapabilities)
            {
                if (vc.FrameSize.Width == w && vc.FrameSize.Height == h)
                    videoDevice.VideoResolution = vc;
            }
            videoSourcePlayer.VideoSource = videoDevice;
            videoSourcePlayer.Start();
        }

        VideoCaptureDevice videoDevice;

        private void Disconnect()
        {
            if (videoSourcePlayer.VideoSource != null)
            {
                // stop video device
                videoSourcePlayer.SignalToStop();
                videoSourcePlayer.WaitForStop();
                videoSourcePlayer.VideoSource = null;

                if (videoDevice.ProvideSnapshots)
                {
                    //videoDevice.SnapshotFrame -= new NewFrameEventHandler(videoDevice_SnapshotFrame);
                }

                //EnableConnectionControls(true);
            }
        }
        private void frm_cj_Load(object sender, EventArgs e)
        {
            h.UnRegist(this.Handle, caiji);
            h.Regist(this.Handle, (int)HotKeys.HotkeyModifiers.Control, Keys.Q, caiji);
        }

        private void caiji()
        {
            Bitmap bmp = null;
            bmp = videoSourcePlayer.GetCurrentVideoFrame();
            if (bmp == null)
            {
                MessageBox.Show("捕获图像失败！", "提示");
                return;
            }
            else
            {
                if(CaiJied!=null)
                {
                    CaiJied(bmp);
                }
            }
        }
        public event dele_caiji CaiJied;

        private void frm_cj_FormClosing(object sender, FormClosingEventArgs e)
        {
            ysjglr.cj = null;
            //h.UnRegist(this.Handle, caiji);
            Disconnect();
        }
        protected override void WndProc(ref Message m)
        {
            h.ProcessHotKey(m);
            base.WndProc(ref m);
        }
    }
    public delegate void dele_caiji(Bitmap bm);
}