84 lines
2.5 KiB
C#
84 lines
2.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using Emgu.CV;
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using Emgu.CV.Structure;
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using Emgu.CV.CvEnum;
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namespace FCOMMON
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{
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public partial class fWebCamera : Form
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{
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VideoCapture _capture;
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public Bitmap bmp = null;
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public fWebCamera(int idx = 0)
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{
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InitializeComponent();
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this._capture = new VideoCapture(idx);
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//capture.SetCaptureProperty(CapProp.FrameWidth, 648);
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//_capture.SetCaptureProperty(CapProp.FrameHeight, 480);
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this._capture.ImageGrabbed += capture_ImageGrabbed;
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this.FormClosing += fWebCamera_FormClosing;
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}
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void fWebCamera_FormClosing(object sender, FormClosingEventArgs e)
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{
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this._capture.ImageGrabbed -= capture_ImageGrabbed;
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if (this._capture.IsOpened) this._capture.Stop();
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this._capture.Dispose();
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}
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private void fWebCamera_Load(object sender, EventArgs e)
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{
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srcimage = new Mat();
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this._capture.Start();
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this.imageBox1.Image = srcimage;
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}
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Mat srcimage;
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DateTime lastimage = DateTime.Now;
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void capture_ImageGrabbed(object sender, EventArgs e)
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{
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if (this._capture.Retrieve(srcimage, 0))
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{
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lastimage = DateTime.Now;
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if (srcimage != null && srcimage.Width > 10 && srcimage.Height > 10)
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{
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if (this.Disposing || this.IsDisposed) return;
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try
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{
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this.imageBox1.Image = srcimage;
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this.imageBox1.Invalidate();
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}catch (Exception ex)
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{
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}
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//var img = this.pictureBox1.Image;
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//if (img != null) img.Dispose();
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}
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}
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}
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private void button1_Click(object sender, EventArgs e)
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{
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_capture.Stop();
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while(true)
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{
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var ts = DateTime.Now - lastimage;
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if (ts.TotalSeconds >= 1.0)
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break;
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Application.DoEvents();
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}
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bmp = srcimage.Bitmap;
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DialogResult = System.Windows.Forms.DialogResult.OK;
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}
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}
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}
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