/// <summary>
/// 截取一帧图像并保存
/// </summary>
/// <param name="filePath">图像保存路径</param>
/// <param name="fileName">保存的图像文件名</param>
/// <returns>如果保存成功，则返回完整路径，否则为 null</returns>
public static string CaptureImage(string filePath, string fileName = null)
{
if (sourcePlayer.VideoSource == null)
{
return(null);
}
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
try
{
Image bitmap = sourcePlayer.GetCurrentVideoFrame();
if (fileName == null)
{
fileName = DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss");
}
string fullPath = Path.Combine(filePath, fileName + "-cap.jpg");
bitmap.Save(fullPath, ImageFormat.Jpeg);
bitmap.Dispose();
return(fullPath);
}
catch (Exception e)
{
return(null);
}
}
/// <summary>
/// 截取一帧图像并保存
/// </summary>
/// <param name="filePath">图像保存路径</param>
/// <param name="fileName">保存的图像文件名</param>
public static string CaptureImage(string filePath, string fileName = null)
{
if (sourcePlayer.VideoSource == null)
{
return(null);
}
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
try
{
////sourcePlayer.Start();
//Image bitmap = sourcePlayer.GetCurrentVideoFrame();
//if (fileName == null) fileName = DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss");
//bitmap.Save(filePath + @"\" + fileName + "-cap.jpg", ImageFormat.Jpeg);
//bitmap.Dispose();
////sourcePlayer.Stop();
//IntPtr hbitmap = sourcePlayer.GetCurrentVideoFrame().GetHbitmap();
//bitmap = System.Drawing.Image.FromHbitmap(hbitmap);
//fileName = DateTime.Now.ToString("yyyyMMddhhmmssfff") + ".jpg";
//img = this.docFolder + "/" + fileName;
//bmpNew = new Bitmap(bitmap.Width, bitmap.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
//g = Graphics.FromImage(bmpNew);
//g.DrawImage(bitmap, 0, 0, bitmap.Width, bitmap.Height);
//g.Dispose();
//bitmap.Dispose();
Image bitmap = sourcePlayer.GetCurrentVideoFrame();
if (fileName == null)
{
fileName = DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss");
}
string fullPath = Path.Combine(filePath, fileName + "-cap.jpg");
bitmap.Save(fullPath, ImageFormat.Jpeg);
bitmap.Dispose();
return(fullPath);
}
catch (Exception e)
{
//MessageBox.Show(e.Message.ToString());
MessageBox.Show(e.Message.ToString());
return(null);
}
}
/// <summary>
/// 保存图片
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnScannerImage_Click(object sender, EventArgs e)
{
if (videoSource == null)
{
return;
}
bitmap = videoSourcePlayer.GetCurrentVideoFrame();
string fileName = DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss-ff") + ".jpg";
bitmap.Save(Application.StartupPath + "\\" + fileName, ImageFormat.Jpeg);
bitmap.Dispose();
}
private void GetPicture(VideoSourcePlayer videoplayer)
{
//try
{
if (videoplayer.IsRunning)
{
IntPtr ip = videoplayer.GetCurrentVideoFrame().GetHbitmap();
BitmapSource bitmapSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
ip,
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
PngBitmapEncoder pE = new PngBitmapEncoder();
pE.Frames.Add(BitmapFrame.Create(bitmapSource));
drawDate = DateTime.Now.ToString("yyyy.MM.dd HH.mm.ss");
string picName = GetPath("Image") + "\\" + drawDate + videoplayer.Name + ".jpg";
if (File.Exists(picName))
{
File.Delete(picName);
}
using (Stream stream = File.Create(picName))
{
pE.Save(stream);
}
DeleteObject(ip);
//拍照完成后关摄像头并刷新同时关窗体
//if (videoSourcePlayer != null && videoSourcePlayer.IsRunning)
//{
// videoSourcePlayer.SignalToStop();
// videoSourcePlayer.WaitForStop();
//}
// this.Close();
}
}
//catch (Exception ex)
// {
// MessageBox.Show("摄像头异常：" + ex.Message);
// }
}
/// <summary>
/// 截取一帧图像并保存
/// </summary>
/// <param name="filePath">图像保存路径</param>
/// <param name="fileName">保存的图像文件名</param>
public static string CaptureImage(string filePath, string fileName = null)
{
if (sourcePlayer.VideoSource == null)
{
return(null);
}
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
return(null);
}
try
{
//sourcePlayer.Start();
Image bitmap = sourcePlayer.GetCurrentVideoFrame();
if (fileName == null)
{
fileName = DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss");
}
string fullPath = Path.Combine(filePath, fileName + "-cap.jpg");
//MemoryStream ms = new MemoryStream();
//bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
//bitmap.Dispose();
//return ms.ToArray();
bitmap.Save(fullPath, ImageFormat.Jpeg);
bitmap.Dispose();
//sourcePlayer.Stop();
return(fullPath);
}
catch (Exception e)
{
MessageBox.Show(e.Message.ToString());
return(null);
}
}
// encender la camara web
private void button6_Click(object sender, EventArgs e)
{
timer1.Enabled = true;
comboBox1.SelectedIndex = 0;
// conseguir el control de video del form
VideoSourcePlayer Reproductor = (VideoSourcePlayer)this.panel2.Controls["ControlVideo"];
Reproductor.VideoSource = new VideoCaptureDevice(this.ColeccionDisp[comboBox1.SelectedIndex].MonikerString);
Reproductor.Start();
// verificar que se leea algo
if (Reproductor.GetCurrentVideoFrame() != null)
{
// conseguir la imagen de la web cam
Bitmap imagen = new Bitmap(Reproductor.GetCurrentVideoFrame());
// conseguir el resultado de la lectura
string[] codigo = BarcodeReader.read(imagen, BarcodeReader.QRCODE);
MessageBox.Show(codigo.ToString());
// limpiar la memoria
imagen.Dispose();
// agregar cuando se lea algo
if (codigo != null /*&& codigo.Count() > 0*/)
{
MessageBox.Show(codigo.Length.ToString());
//listBox2.Items.Add(codigo[0]);
// verificar si existe coincidencia en la base de datos para "codigo"
/* crear una nueva conexion */
this.conexion = new MySqlConnection(this.cadenaConexion);
this.conexion.Open();
/* crear un comando */
string nua;
string nombre;
string comandoInterno = "SELECT * FROM estudiante WHERE NUA =";
MySqlCommand Comando = new MySqlCommand(comandoInterno, this.conexion);
// conseguir un lector
MySqlDataReader lectort = Comando.ExecuteReader();
if (lectort.Read())
{
this.panel2.BackColor = Color.Green;
}
else
{
this.panel2.BackColor = Color.Red;
}
}
else
{
panel3.BackColor = Color.Black;
}
}
}
private void timer1_Tick(object sender, EventArgs e)
{
VideoSourcePlayer Reproductor = (VideoSourcePlayer)this.panel2.Controls["ControlVideo"];
// verificar que se leea algo
if (Reproductor.GetCurrentVideoFrame() != null)
{
// conseguir la imagen de la web cam
Bitmap imagen = new Bitmap(Reproductor.GetCurrentVideoFrame());
// conseguir el resultado de la lectura
string[] codigo = BarcodeReader.read(imagen, BarcodeReader.QRCODE);
try
{
// limpiar la memoria
imagen.Dispose();
// agregar cuando se lea algo
if (codigo != null)
{
char separador = ' ';
string[] matriz = codigo[0].Split(separador);
if (matriz.Count() >= 2)
{
// verificar si existe coincidencia en la base de datos para "codigo"
/* crear una nueva conexion */
this.conexion = new MySqlConnection(this.cadenaConexion);
this.conexion.Open();
/* crear un comando */
string nua = matriz[matriz.Length - 1];
string nombre = matriz[2];
string comandoInterno = "SELECT * FROM registro WHERE nua =" + Convert.ToInt32(nua) + ";";
MySqlCommand Comando = new MySqlCommand(comandoInterno, this.conexion);
// conseguir un lector
MySqlDataReader lectort = Comando.ExecuteReader();
if (lectort.Read())
{
this.panel1.BackColor = Color.Green;
this.panel1.Refresh();
this.label7.Text = this.menAceptado;
this.label7.Refresh();
System.Threading.Thread.Sleep(500);
this.escritorActual.WriteLine(nombre + " | " + nua);
ListViewItem itNua = new ListViewItem(lectort.GetString(1));
ListViewItem.ListViewSubItem itNom = new ListViewItem.ListViewSubItem(itNua, lectort.GetString(0));
itNua.SubItems.Add(itNom);
listView1.Items.Add(itNua);
// cerrar al escritor en cada escritura
this.conexion.Close();
return;
}
else
{
this.panel1.BackColor = Color.Red;
this.panel1.Refresh();
this.label7.Text = this.menRechazado;
this.label7.Refresh();
System.Threading.Thread.Sleep(500);
}
}
}
else
{
this.panel1.BackColor = Color.Black;
panel1.Refresh();
this.label7.Text = this.menVacio;
this.label7.Refresh();
}
}
catch (Exception ex)
{
this.panel1.BackColor = Color.Yellow;
this.label7.Text = "INVALIDO";
panel1.Refresh();
this.label7.Refresh();
System.Threading.Thread.Sleep(500);
}
}
}
public Bitmap GetFrame()
{
return(VideoSourcePlayer.GetCurrentVideoFrame());
}
// capture webcam
static void CaptureWebCam(string devicename, int delay, int resid, int number, int wait, string format, string filename)
{
// format
ImageFormat imageformat;
if (format.ToLower() == "jpg")
{
imageformat = ImageFormat.Jpeg;
}
else if (format.ToLower() == "png")
{
imageformat = ImageFormat.Png;
}
else if (format.ToLower() == "bmp")
{
imageformat = ImageFormat.Bmp;
}
else
{
throw new ApplicationException("wrong format");
}
// get video devices
FilterInfoCollection videoInputDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (videoInputDevices.Count == 0)
{
throw new ApplicationException("no cameras");
}
// list all devices
int i = 0;
foreach (FilterInfo device in videoInputDevices)
{
Print("{0,3}: {1}\n", i, device.Name);
++i;
}
// get deviceid
int deviceid = 0; // default
if (devicename != null)
{
if (IsNumber(devicename))
{
deviceid = ToNumber(devicename);
}
else
{
bool found = false;
foreach (FilterInfo device in videoInputDevices)
{
if (device.Name.ToLower().Contains(devicename.ToLower()))
{
found = true; break;
}
++deviceid;
}
if (!found)
{
throw new ApplicationException("wrong devicename");
}
}
}
if (deviceid < 0 || deviceid >= videoInputDevices.Count)
{
throw new ApplicationException("wrong deviceid");
}
// init capture device
VideoCaptureDevice videoCaptureDevice = new VideoCaptureDevice(videoInputDevices[deviceid].MonikerString);
if (videoCaptureDevice.VideoCapabilities.Length == 0)
{
throw new ApplicationException("no camera resolutions");
}
// list all resolutions
Print("Camera {0} resolutions\n", deviceid);
i = 0;
foreach (VideoCapabilities capabilty in videoCaptureDevice.VideoCapabilities)
{
Print("{0,3}: {1} x {2}\n", i, capabilty.FrameSize.Width, capabilty.FrameSize.Height);
++i;
}
// get max resolutionid
if (resid == Int32.MinValue)
{
i = 0;
Size max = new Size(0, 0);
foreach (VideoCapabilities capabilty in videoCaptureDevice.VideoCapabilities)
{
if (capabilty.FrameSize.Width > max.Width || (capabilty.FrameSize.Width == max.Width && capabilty.FrameSize.Height > max.Height))
{
resid = i; // default
max = capabilty.FrameSize;
}
++i;
}
}
if (resid < 0 || resid >= videoCaptureDevice.VideoCapabilities.Length)
{
throw new ApplicationException("wrong resolutionid");
}
videoCaptureDevice.VideoResolution = videoCaptureDevice.VideoCapabilities[resid];
// init player
VideoSourcePlayer videoSourcePlayer = new VideoSourcePlayer();
videoSourcePlayer.VideoSource = videoCaptureDevice;
videoSourcePlayer.Start();
// waiting for first capture
Print("waiting [{0} -d{1} -r{2} -n{3} -w{4} -f{5}] ", deviceid, delay, resid, number, wait, format);
bool captured = false;
for (i = 0; i < 25; ++i)
{
Print(".");
Thread.Sleep(delay * 1000); // increase delay if image is black
if (videoCaptureDevice.IsRunning &&
videoSourcePlayer.IsRunning &&
videoSourcePlayer.GetCurrentVideoFrame() != null)
{
captured = true;
break;
}
}
if (!captured)
{
Print("\n capture failed, increase delay");
}
Print("\n");
// captures images
for (i = 0; i < number; ++i)
{
Bitmap bitmap = videoSourcePlayer.GetCurrentVideoFrame();
if (bitmap == null)
{
Print(" capture failed\n");
}
else
{
string filenamefull;
if (filename == null)
{
filenamefull = "capcam" + deviceid + "-" + DateTime.Now.ToString("yyyyMMdd-HHmmss") + "." + format.ToLower(); // default
}
else
{
string pathname = Path.GetDirectoryName(filename);
string basename = Path.GetFileNameWithoutExtension(filename);
string extension = Path.GetExtension(filename);
if (basename == "")
{
basename = "capcam";
}
if (extension == "")
{
extension = format.ToLower();
}
if (extension[0] == '.')
{
extension = extension.Substring(1);
}
if (number > 1)
{
basename += DateTime.Now.ToString("yyyyMMdd-HHmmss");
}
filenamefull = Path.Combine(pathname, basename) + "." + extension;
}
bitmap.Save(filenamefull, imageformat);
Print(" {0}\n", filenamefull);
}
Thread.Sleep(wait * 1000);
}
// cleanup
videoSourcePlayer.SignalToStop();
videoSourcePlayer.WaitForStop();
videoSourcePlayer.VideoSource = null;
videoCaptureDevice.SignalToStop();
videoCaptureDevice.WaitForStop();
}