WPF（Windows Presentation Foundation）是微软推出的基于Windows 的用户界面框架，属于.NET Framework 3.0的一部分。它提供了统一的编程模型、语言和框架，真正做到了分离界面设计人员与开发人员的工作；同时它提供了全新的多媒体交互用户图形界面。
还是话不多说，直接上码：
1.新建WpfApp应用程序
2.MainWindow.xaml文件代码如下：
1 2 | <window x:class="WpfApp1.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:WpfApp1" mc:ignorable="d" title="MainWindow" height="450" width="800"><grid><grid.rowdefinitions><rowdefinition height="*"></rowdefinition><rowdefinition height="10*"></rowdefinition></grid.rowdefinitions><button name="button" grid.row="0" horizontalalignment="Center" content="generate_bitmap" minwidth="120" minheight="30" click="Button_Click"></button> <grid x:name="imgGrid" grid.row="1"><viewbox><img x:name="img" width="{Binding RelativeSource={RelativeSource Self}, Path=Source.PixelWidth}" height="{Binding RelativeSource={RelativeSource Self}, Path=Source.PixelHeight}" source="{Binding CtrlImage, IsAsync=True}" stretch="None"></viewbox></grid></grid></window> |
3.MainWindow.xaml.cs文件代码如下：
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 | using System;using System.Collections.Generic;using System.Globalization;using System.Linq;using System.Text;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 System.Drawing;using System.Drawing.Drawing2D; namespace WpfApp1{ /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } public void Button_Click(object sender, RoutedEventArgs e) WriteableBitmap wb = new WriteableBitmap((int)imgGrid.ActualWidth, (int)imgGrid.ActualHeight, 96, 96, PixelFormats.Pbgra32, null); wb.Lock(); Bitmap backBitmap = new Bitmap((int)imgGrid.ActualWidth, (int)imgGrid.ActualHeight, wb.BackBufferStride, System.Drawing.Imaging.PixelFormat.Format32bppArgb, wb.BackBuffer); Int32Rect rect = new Int32Rect(0, 0, (int)imgGrid.ActualWidth, (int)imgGrid.ActualHeight); byte[] pixels = new byte[(int)imgGrid.ActualWidth * (int)imgGrid.ActualHeight * wb.Format.BitsPerPixel / 8]; Random rand = new Random(); for (int y = 0; y |
效果如下：
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