实例介绍
【实例简介】
C#winform实现拍照并存水印图片
【实例截图】
【核心代码】
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | //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(); } } |
好例子网口号：伸出你的我的手 — 分享！
小贴士
感谢您为本站写下的评论，您的评论对其它用户来说具有重要的参考价值，所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字，对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙，所以请不要反馈意义不大的重复字符，也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明，或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦，又没人会搭理，于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享，对搜索内容的合法性不具有预见性、识别性、控制性，仅供学习研究，请务必在下载后24小时内给予删除，不得用于其他任何用途，否则后果自负。基于互联网的特殊性，平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查；无论平台是否已进行审查，用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定，若资源存在侵权或相关问题请联系本站客服人员，点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论