129 lines
3.4 KiB
C#
129 lines
3.4 KiB
C#
using AForge.Video;
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using AForge.Video.DirectShow;
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using DatenDB;
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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.Threading.Tasks;
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using System.Windows.Forms;
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using ZXing;
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namespace Deckungsbeitrag
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{
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public partial class FormKamera : Form
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{
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public Kunde kunde;
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//QR-Code Scan mit integrierter Kamera
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private VideoCaptureDevice videoSource;
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private FilterInfoCollection videoDevices;
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private BarcodeReader barcodeReader;
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private bool isScanning = false;
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public FormKamera()
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{
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InitializeComponent();
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}
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public FormKamera(FilterInfoCollection videoDevices) : this()
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{
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this.videoDevices = videoDevices;
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}
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private void FormKamera_Load(object sender, EventArgs e)
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{
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barcodeReader = new BarcodeReader();
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videoSource = new VideoCaptureDevice(videoDevices[0].MonikerString);
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videoSource.NewFrame += VideoSource_NewFrame;
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videoSource.Start();
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isScanning = true;
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}
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/// <summary>
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/// PictureBox mit Live Bild der Kamera laden und anzeigen.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="eventArgs"></param>
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private void VideoSource_NewFrame(object sender, NewFrameEventArgs eventArgs)
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{
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using (Bitmap unflippedbitmap = (Bitmap)eventArgs.Frame.Clone())
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{
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Bitmap bitmap = FlipHorizontal(unflippedbitmap);
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pictureBoxKamera.Image?.Dispose();
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pictureBoxKamera.Image = (Bitmap)bitmap.Clone();
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var result = barcodeReader.Decode(bitmap);
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if (result != null && result.BarcodeFormat == BarcodeFormat.QR_CODE)
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{
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this.Invoke(new Action(() => {
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this.kunde = Kunde.GetKunde(result.Text, null, null); // Direkt in TextBox schreiben
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pictureBoxKamera.Image?.Dispose();
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StopScanning();
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System.Media.SystemSounds.Asterisk.Play();
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this.DialogResult = DialogResult.OK;
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this.Close();
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}));
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}
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}
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}
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/// <summary>
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/// Die Bitmap wir Horizontal geflippt damit die Orientierung beim QR-Scann besser ist.
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/// </summary>
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/// <param name="source"></param>
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/// <returns></returns>
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private Bitmap FlipHorizontal(Bitmap source)
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{
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Bitmap flipped = (Bitmap)source.Clone();
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flipped.RotateFlip(RotateFlipType.RotateNoneFlipX); // ✅ Funktioniert!
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return flipped;
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}
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/// <summary>
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/// Scannen wird hier gestoppt.
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/// </summary>
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private void StopScanning()
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{
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if (videoSource != null)
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{
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videoSource.SignalToStop();
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videoSource = null;
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isScanning = false;
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}
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}
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/// <summary>
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/// Wenn QR-Code scannen nicht möglich ist, kann händische Eingabe gewählt werden.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void buttonHand_Click(object sender, EventArgs e)
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{
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StopScanning();
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this.DialogResult = DialogResult.No;
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this.Close();
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}
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/// <summary>
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/// Scanning beenden falls Form geschlossen wird.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void FormKamera_FormClosing(object sender, FormClosingEventArgs e)
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{
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if (isScanning) { StopScanning(); this.DialogResult = DialogResult.Cancel; }
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}
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}
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}
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