C#实现手机拍照并且保存水印照片

private void Camera_Load(object sender, EventArgs e){this.btnSave.Enabled = false;try{borderSize = GetBorderSize(this);captionHeight = GetCaptionHeight(this);//InitStudent("", "", "");this.comboBox_SizeMode.Text = "填充(保持比例)";FilterInfoCollection infos = new FilterInfoCollection(FilterCategory.VideoInputDevice);if ((infos != null) && (infos.Count > 0)){}else{MessageBox.Show("没有视频设备");}this.LoadVedio();this.splitContainer1.Panel2MinSize = 280;this.splitContainer1.SplitterDistance = this.splitContainer1.Width - this.splitContainer1.Panel2MinSize + 1;mf = new BorderForm();mf.Show(this);//mf.Left = (this.Left + this.splitContainer1.Panel1.Width - mf.Width) / 2;//mf.Top = (this.Top + this.splitContainer1.Panel1.Height - mf.Height) / 2;//marLeft = mf.Left - this.Left;//marTop = mf.Top - this.Top;Rectangle rtPic = this.pictureBox_Camera.RectangleToScreen(this.pictureBox_Camera.ClientRectangle);Rectangle rtMF = this.mf.RectangleToScreen(this.mf.ClientRectangle);if (rtPic == null || rtMF == null || rtPic.Width == 0 || rtMF.Width == 0){return;}mf.Left = ((rtMF.Width + rtMF.Left) + (rtPic.Width + rtPic.Left)) / 2;mf.Top = ((rtMF.Height + rtMF.Top) + (rtPic.Height + rtPic.Top)) / 2;mf.SizeChanged += new EventHandler(mf_SizeChanged);mf.LocationChanged += new EventHandler(mf_LocationChanged);pictureBox_Camera_SizeChanged(sender, e);//启动连拍//this.ShootOneTime = 0;this.timer1.Start();}catch (Exception ex){MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);}}

//加载摄像头设备private void LoadVedio(){FilterInfoCollection infos = new FilterInfoCollection(FilterCategory.VideoInputDevice);if ((infos != null) && (infos.Count > 0)){int index = 0;foreach (FilterInfo info in infos){this.cmbCaptureDevice.Items.Add(new DeviceInfo(info.Name, info.MonikerString, index, FilterCategory.VideoInputDevice));index++;}this.cmbCaptureDevice.SelectedIndex = 0;}}

/// <summary>/// 拍照/// </summary>private void Shoot(){try{if (this.pictureBox_Camera.Image != null && (int)this.numericUpDown1.Value > 0 && (int)this.numericUpDown2.Value > 0){Bitmap resultImage = new Bitmap((int)this.numericUpDown1.Value, (int)this.numericUpDown2.Value);Graphics g = Graphics.FromImage(resultImage);g.CopyFromScreen(new Point(this.mf.Location.X + 1, this.mf.Location.Y + 1), new Point(6, 6 + (isWin7 ? 2 : 0)), new Size(resultImage.Size.Width, resultImage.Size.Height - (6 + (isWin7 ? 2 : 0))));if (!string.IsNullOrEmpty(XH)){string str = "";if (this.XH != ""){str = this.XH;}else if (this.SFZH != ""){str = this.SFZH;}else if (this.KSH != ""){str = this.KSH;}if (this.checkBox2.Checked){str = XM + " " + str;}int txtWidth = (int)(g.MeasureString(str, new Font("宋体", 9)).Width * 1.1);Rectangle rec = new Rectangle((resultImage.Width - txtWidth) / 2, resultImage.Height - 16, txtWidth, 15);g.FillRectangle(Brushes.White, rec);StringFormat sf = new StringFormat();sf.LineAlignment = StringAlignment.Center;sf.Alignment = StringAlignment.Center;rec.Height++;g.DrawString(str, new Font("宋体", 9), Brushes.Black, rec, sf);}this.pictureBox_tx.Image = resultImage;}else{this.pictureBox_tx.Image = null;}}catch (Exception ex){MessageBox.Show(ex.Message, "", MessageBoxButtons.OK, MessageBoxIcon.Error);}}

//选择摄像装置private void cmbCaptureDevice_SelectedIndexChanged(object sender, EventArgs e){if (this.cmbCaptureDevice.SelectedItem != null){this.cmbDeviceCapability.Items.Clear();VideoCaptureDevice device = new VideoCaptureDevice(((DeviceInfo)this.cmbCaptureDevice.SelectedItem).MonikerString);for (int i = 0; i < device.VideoCapabilities.Length; i++){VideoCapabilities capabilities = device.VideoCapabilities[i];DeviceCapabilityInfo item = new DeviceCapabilityInfo(capabilities.FrameSize);this.cmbDeviceCapability.Items.Add(item);}DeviceInfo selectedItem = (DeviceInfo)this.cmbCaptureDevice.SelectedItem;if (this.captureAForge != null){this.captureAForge.NewFrame -= new NewFrameEventHandler(this.captureAForge_NewFrame);//this.captureAForge.SnapshotFrame -= new NewFrameEventHandler(this.captureAForge_SnapshotFrame);if (this.captureAForge.IsRunning){this.captureAForge.SignalToStop();}this.captureAForge.WaitForStop();this.captureAForge = null;}this.captureAForge = new VideoCaptureDevice(selectedItem.MonikerString);this.captureAForge.ProvideSnapshots = true;this.captureAForge.NewFrame += new NewFrameEventHandler(this.captureAForge_NewFrame);//this.captureAForge.SnapshotFrame += new NewFrameEventHandler(this.captureAForge_SnapshotFrame);if (this.cmbDeviceCapability.Items.Count > 0){this.cmbDeviceCapability.SelectedIndex = 0;}}}

//选择分辨率private void cmbDeviceCapability_SelectedIndexChanged(object sender, EventArgs e){string[] strArray = this.cmbDeviceCapability.Text.Trim().Split(new char[] { 'x' });int width = int.Parse(strArray[0]);int height = int.Parse(strArray[1]);if (this.captureAForge != null){if (this.captureAForge.IsRunning){this.captureAForge.SignalToStop();}this.captureAForge.WaitForStop();this.captureAForge.DesiredFrameSize = new Size(width, height);this.captureAForge.DesiredSnapshotSize = new Size(width, height);//this.captureAForge.DesiredFrameRate = 1000;this.captureAForge.Start();}}

//设置数据源大小 private void comboBox_SizeMode_SelectedIndexChanged(object sender, EventArgs e){switch (this.comboBox_SizeMode.Text){case "默认(原始大小)":this.pictureBox_Camera.SizeMode = PictureBoxSizeMode.Normal;break;case "居中(原始大小)":this.pictureBox_Camera.SizeMode = PictureBoxSizeMode.CenterImage;break;case "填充(拉伸图像)":this.pictureBox_Camera.SizeMode = PictureBoxSizeMode.StretchImage;break;case "填充(保持比例)":this.pictureBox_Camera.SizeMode = PictureBoxSizeMode.Zoom;break;}}

//保存照片private void buttonSave_Click(object sender, EventArgs e){try{string filename = Path.Combine(Application.StartupPath, "StuImages", "Newstuimages", this.XH + ".JPG");if (!this.checkBox1.Checked && File.Exists(filename)){if (MessageBox.Show("该生已经有照片文件，是否覆盖? ", "", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning) == DialogResult.OK){//存储到本地this.pictureBox_tx.Image.Save(filename);//OnDataChanged(this, new DataEventArgs(string.Format("头像采集(覆盖)，学号：{0}，姓名：{1}，考生号：{2}，身份证号：{3}", this.XH, this.XM, this.KSH, this.SFZH)));this.txtKSH.Focus();this.txtKSH.SelectAll();}else{return;}}else{this.pictureBox_tx.Image.Save(filename);//OnDataChanged(this, new DataEventArgs(string.Format("头像采集，学号：{0}，姓名：{1}，考生号：{2}，身份证号：{3}", this.XH, this.XM, this.KSH, this.SFZH)));this.txtKSH.Focus();this.txtKSH.SelectAll();}this.timer1.Start();}catch{}finally{//启用下面一行,点击保存后头像会立即启动刷新//this.timer1.Start();this.btnSave.Enabled = false;}}