WPF实现拍照截图功能(WPFMediaKit 调用摄像头和拍照)

本是古典何须时尚 2024-04-18 16:42 74阅读 0赞

**1.下载WPFMediaKit包**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzk3Njg5MA_size_16_color_FFFFFF_t_70]**2.XAML界面**

**3.后端逻辑**

using System;
    using System.Collections.Generic;
    using System.IO;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Data;
    using System.Windows.Documents;
    using System.Windows.Input;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;
    using System.Windows.Navigation;
    using System.Windows.Shapes;
    using WPFMediaKit.DirectShow.Controls;
    
    namespace 拍照截图
    {
        /// <summary>
        /// MainWindow.xaml 的交互逻辑
        /// </summary>
        public partial class MainWindow : Window
        {
            public MainWindow()
            {
                InitializeComponent();
                string[] inputNames = MultimediaUtil.VideoInputNames;
                m_VideoCaptureElement.VideoCaptureSource = inputNames[0];
            }
    
            private void button1_Click(object sender, RoutedEventArgs e)
            {
                //调用默认摄像头
                RenderTargetBitmap bmp = new RenderTargetBitmap((int)m_VideoCaptureElement.ActualWidth, (int)m_VideoCaptureElement.ActualHeight, 96, 96, PixelFormats.Default);
                bmp.Render(m_VideoCaptureElement);
                BitmapEncoder encoder = new JpegBitmapEncoder();
                encoder.Frames.Add(BitmapFrame.Create(bmp));
                //命名格式
                string now = DateTime.Now.Year + "" + DateTime.Now.Month + "" + DateTime.Now.Day + "" + DateTime.Now.Hour + "" + DateTime.Now.Minute + "" + DateTime.Now.Second;
                //保存路径D盘根目录
                string filename = "D:\\" + now + ".jpg";
                FileStream fstream = new FileStream(filename, FileMode.Create);
                encoder.Save(fstream);
                fstream.Close();
                MessageBox.Show("图片已经保存到D盘根目录");
    
    
            }
        }
    }

**4.效果展示,下载地址及注意**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzk3Njg5MA_size_16_color_FFFFFF_t_70 1]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzk3Njg5MA_size_16_color_FFFFFF_t_70 2]  
[https://pan.baidu.com/s/1Czul8NQX0qavhyYZWdCiMA][https_pan.baidu.com_s_1Czul8NQX0qavhyYZWdCiMA]  
提取码

86n3

注意:  
1.界面引用组件需要加一句

xmlns:WPFMediaKit="clr-namespace:WPFMediaKit.DirectShow.Controls;assembly=WPFMediaKit"

2.截图保存到D盘根目录,路径可以自己设置.

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzk3Njg5MA_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/e30687aee31e4eb5ab68b12b39bc3a95.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzk3Njg5MA_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20190909182032874.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzk3Njg5MA==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzk3Njg5MA_size_16_color_FFFFFF_t_70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/ca4e0f16d631467c814a3f81d1c0a829.png
[https_pan.baidu.com_s_1Czul8NQX0qavhyYZWdCiMA]: https://pan.baidu.com/s/1Czul8NQX0qavhyYZWdCiMA