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I have an application developed with Windows Form in C# that captures image through webcam installed on the computer.
This application has several photons, and one of them is the image capture. When I finish capturing the image and close the form the webcam is still on. The form I’m closing is just the capture, the application keeps running. I want to stop the webcam and keep running the application.
using ColetaBiometria.DAO;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ColetaBiometria
{
public partial class CapturaFoto : Form
{
public DirectX.Capture.Filter Camera;
public DirectX.Capture.Capture CaptureInfo;
public DirectX.Capture.Filters CamContainer;
Image capturaImagem;
public CapturaFoto(int codEmpresa, string login)
{
InitializeComponent();
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(formClosing);
labelNomeUsuario.Text = login;
labelCodEmpresa.Text = Convert.ToString(codEmpresa);
}
private void CapturaFoto_Load(object sender, EventArgs e)
{
try
{
CamContainer = new DirectX.Capture.Filters();
}
catch
{
MessageBox.Show("WebCam não encontrada!" + "\n" + "\n" + "Verifique se o dispositivo está conectado.", "Alerta!");
}
try
{
int no_of_cam = CamContainer.VideoInputDevices.Count;
for (int i = 0; i < no_of_cam; i++)
{
try
{
// obtém o dispositivo de entrada do vídeo
Camera = CamContainer.VideoInputDevices[i];
// inicializa a Captura usando o dispositivo
CaptureInfo = new DirectX.Capture.Capture(Camera, null);
// Define a janela de visualização do vídeo
CaptureInfo.PreviewWindow = this.picWebCam;
// Capturando o tratamento de evento
CaptureInfo.FrameCaptureComplete += AtualizaImagem;
// Captura o frame do dispositivo
CaptureInfo.CaptureFrame();
// Se o dispositivo foi encontrado e inicializado então sai sem checar o resto
break;
}
catch (Exception ex)
{
throw ex;
}
}
}
catch (Exception ex)
{
//MessageBox.Show(this, ex.Message);
}
}
public void AtualizaImagem(PictureBox frame)
{
try
{
capturaImagem = frame.Image;
this.picImagem.Image = capturaImagem;
}
catch (Exception ex)
{
MessageBox.Show("Erro " + ex.Message);
}
}
private void bntCapture_Click(object sender, EventArgs e)
{
try
{
CaptureInfo.CaptureFrame();
}
catch (Exception ex)
{
MessageBox.Show("Erro " + ex.Message);
}
}
private void formClosing(object sender, EventArgs e)
{
//Aqui estou tentanto encerrar o serviço da webcam
CaptureInfo.Stop();
CaptureInfo.Close();
}
private void bntSave_Click(object sender, EventArgs e)
{
try
{
if (picImagem.Image != null)
{
MemoryStream ms = new MemoryStream();
picImagem.Image.Save(ms, ImageFormat.Jpeg);
byte[] photo_aray = new byte[ms.Length];
ms.Position = 0;
ms.Read(photo_aray, 0, photo_aray.Length);
UsuarioDAO dao = new UsuarioDAO();
dao.GravaFoto(photo_aray, Convert.ToInt32(labelCodEmpresa.Text), labelNomeUsuario.Text);
MessageBox.Show("Foto gravada com sucesso!", "Sistema", MessageBoxButtons.OK, MessageBoxIcon.Information);
btnCapturar.Enabled = false;
btnSalvar.Enabled = false;
}
else
{
MessageBox.Show("Foto não encontrada", "Sistema", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
catch (Exception erro)
{
throw erro;
}
}
private void imgVideo_Click(object sender, EventArgs e)
{
}
}
}
missed the Dysplasia when finished the action , Camera.Dispose()
– HudsonPH
Where do I put Dispose(); @Hudsonph? On the "Camera" object you do not have the Dispose function. I tried on "Captureinfo" but also could not.
– Diego Grossi
Directx.Capture.Dispose ?
– HudsonPH
Does not have the "Dispose" function for Directx.Capture @Hudsonph
– Diego Grossi
I got @Hudsonph. I put "Captureinfo.Disposecapture();". Thanks for your help!
– Diego Grossi