手机php网站开发,济南城市建设职业学院官网招生网,热点新闻事件100字,学校网站设计思路WPF开发者QQ群#xff1a; 340500857 | 微信群 - 进入公众号主页 加入组织欢迎转发、分享、点赞、在看#xff0c;谢谢~。 前言有小伙伴需要在软件反馈窗体增加截图功能需求#xff0c;所以今天来实现一个仿微信的截图。01—效果预览效果预览#xff08;更多效果请下… WPF开发者QQ群 340500857 | 微信群 - 进入公众号主页 加入组织欢迎转发、分享、点赞、在看谢谢~。 前言 有小伙伴需要在软件反馈窗体增加截图功能需求所以今天来实现一个仿微信的截图。01—效果预览效果预览更多效果请下载源码体验02—代码如下一、ScreenCut.cs 代码如下using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;namespace WPFDevelopers.Controls
{[TemplatePart(Name CanvasTemplateName, Type typeof(Canvas))][TemplatePart(Name RectangleLeftTemplateName, Type typeof(Rectangle))][TemplatePart(Name RectangleTopTemplateName, Type typeof(Rectangle))][TemplatePart(Name RectangleRightTemplateName, Type typeof(Rectangle))][TemplatePart(Name RectangleBottomTemplateName, Type typeof(Rectangle))][TemplatePart(Name BorderTemplateName, Type typeof(Border))][TemplatePart(Name WrapPanelTemplateName, Type typeof(WrapPanel))][TemplatePart(Name ButtonSaveTemplateName, Type typeof(Button))][TemplatePart(Name ButtonCancelTemplateName, Type typeof(Button))][TemplatePart(Name ButtonCompleteTemplateName, Type typeof(Button))]public class ScreenCut : Window{private const string CanvasTemplateName PART_Canvas;private const string RectangleLeftTemplateName PART_RectangleLeft;private const string RectangleTopTemplateName PART_RectangleTop;private const string RectangleRightTemplateName PART_RectangleRight;private const string RectangleBottomTemplateName PART_RectangleBottom;private const string BorderTemplateName PART_Border;private const string WrapPanelTemplateName PART_WrapPanel;private const string ButtonSaveTemplateName PART_ButtonSave;private const string ButtonCancelTemplateName PART_ButtonCancel;private const string ButtonCompleteTemplateName PART_ButtonComplete;private Canvas _canvas;private Rectangle _rectangleLeft, _rectangleTop, _rectangleRight, _rectangleBottom;private Border _border;private WrapPanel _wrapPanel;private Button _buttonSave,_buttonCancel, _buttonComplete;private Rect rect;private Point pointStart, pointEnd;private bool isMouseUp false;static ScreenCut(){DefaultStyleKeyProperty.OverrideMetadata(typeof(ScreenCut), new FrameworkPropertyMetadata(typeof(ScreenCut)));}public override void OnApplyTemplate(){base.OnApplyTemplate();_canvas GetTemplateChild(CanvasTemplateName) as Canvas;_rectangleLeft GetTemplateChild(RectangleLeftTemplateName) as Rectangle;_rectangleTop GetTemplateChild(RectangleTopTemplateName) as Rectangle;_rectangleRight GetTemplateChild(RectangleRightTemplateName) as Rectangle;_rectangleBottom GetTemplateChild(RectangleBottomTemplateName) as Rectangle;_border GetTemplateChild(BorderTemplateName) as Border;_wrapPanel GetTemplateChild(WrapPanelTemplateName) as WrapPanel;_buttonSave GetTemplateChild(ButtonSaveTemplateName) as Button;if (_buttonSave ! null)_buttonSave.Click _buttonSave_Click;_buttonCancel GetTemplateChild(ButtonCancelTemplateName) as Button;if (_buttonCancel ! null)_buttonCancel.Click _buttonCancel_Click;_buttonComplete GetTemplateChild(ButtonCompleteTemplateName) as Button;if (_buttonComplete ! null)_buttonComplete.Click _buttonComplete_Click;this._canvas.Background new ImageBrush(ChangeBitmapToImageSource(CaptureScreen()));_rectangleLeft.Width _canvas.Width;_rectangleLeft.Height _canvas.Height;}private void _buttonSave_Click(object sender, RoutedEventArgs e){SaveFileDialog dlg new SaveFileDialog();dlg.FileName $WPFDevelopers{DateTime.Now.ToString(yyyyMMddHHmmss)}.jpg;dlg.DefaultExt .jpg;dlg.Filter image file|*.jpg;if (dlg.ShowDialog() true){BitmapEncoder pngEncoder new PngBitmapEncoder();pngEncoder.Frames.Add(BitmapFrame.Create(CutBitmap()));using (var fs System.IO.File.OpenWrite(dlg.FileName)){pngEncoder.Save(fs);fs.Dispose();fs.Close();}}Close();}private void _buttonComplete_Click(object sender, RoutedEventArgs e){Clipboard.SetImage(CutBitmap());Close();}CroppedBitmap CutBitmap(){var renderTargetBitmap new RenderTargetBitmap((int)_canvas.Width,(int)_canvas.Height, 96d, 96d, System.Windows.Media.PixelFormats.Default);renderTargetBitmap.Render(_canvas);return new CroppedBitmap(renderTargetBitmap, new Int32Rect((int)rect.X, (int)rect.Y, (int)rect.Width, (int)rect.Height));}private void _buttonCancel_Click(object sender, RoutedEventArgs e){Close();}protected override void OnPreviewKeyDown(KeyEventArgs e){if (e.Key Key.Escape)Close();}protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e){if (!isMouseUp){_wrapPanel.Visibility Visibility.Hidden;pointStart e.GetPosition(_canvas);pointEnd pointStart;rect new Rect(pointStart, pointEnd);}}protected override void OnPreviewMouseMove(MouseEventArgs e){if (e.LeftButton MouseButtonState.Pressed !isMouseUp){var current e.GetPosition(_canvas);MoveAllRectangle(current);}}protected override void OnPreviewMouseLeftButtonUp(MouseButtonEventArgs e){if (!isMouseUp){_wrapPanel.Visibility Visibility.Visible;Canvas.SetLeft(this._wrapPanel, rect.X rect.Width - this._wrapPanel.ActualWidth);Canvas.SetTop(this._wrapPanel, rect.Y rect.Height 4);isMouseUp true;}}void MoveAllRectangle(Point current){pointEnd current;rect new Rect(pointStart, pointEnd);this._rectangleLeft.Width rect.X;this._rectangleLeft.Height _canvas.Height;Canvas.SetLeft(this._rectangleTop, this._rectangleLeft.Width);this._rectangleTop.Width rect.Width;double h 0.0;if (current.Y pointStart.Y)h current.Y;elseh current.Y - rect.Height;this._rectangleTop.Height h;Canvas.SetLeft(this._rectangleRight, this._rectangleLeft.Width rect.Width);this._rectangleRight.Width _canvas.Width - (rect.Width this._rectangleLeft.Width);this._rectangleRight.Height _canvas.Height;Canvas.SetLeft(this._rectangleBottom, this._rectangleLeft.Width);Canvas.SetTop(this._rectangleBottom, rect.Height this._rectangleTop.Height);this._rectangleBottom.Width rect.Width;this._rectangleBottom.Height _canvas.Height - (rect.Height this._rectangleTop.Height);this._border.Height rect.Height;this._border.Width rect.Width;Canvas.SetLeft(this._border, rect.X);Canvas.SetTop(this._border, rect.Y);}System.Drawing.Bitmap CaptureScreen(){var bmpCaptured new System.Drawing.Bitmap((int)SystemParameters.PrimaryScreenWidth, (int)SystemParameters.PrimaryScreenHeight, System.Drawing.Imaging.PixelFormat.Format24bppRgb);using (System.Drawing.Graphics g System.Drawing.Graphics.FromImage(bmpCaptured)){g.SmoothingMode SmoothingMode.AntiAlias;g.CompositingQuality CompositingQuality.HighQuality;g.InterpolationMode InterpolationMode.HighQualityBicubic;g.TextRenderingHint TextRenderingHint.ClearTypeGridFit;g.PixelOffsetMode PixelOffsetMode.HighQuality;g.CopyFromScreen(0, 0, 0, 0, bmpCaptured.Size, System.Drawing.CopyPixelOperation.SourceCopy);}return bmpCaptured;}[System.Runtime.InteropServices.DllImport(gdi32.dll)]public static extern bool DeleteObject(IntPtr hObject);ImageSource ChangeBitmapToImageSource(System.Drawing.Bitmap bitmap){IntPtr hBitmap bitmap.GetHbitmap();ImageSource wpfBitmap System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap,IntPtr.Zero,Int32Rect.Empty,BitmapSizeOptions.FromEmptyOptions());if (!DeleteObject(hBitmap)){throw new System.ComponentModel.Win32Exception();}return wpfBitmap;}}
}二、ScreenCut.xaml 代码如下 ResourceDictionary xmlnshttp://schemas.microsoft.com/winfx/2006/xaml/presentationxmlns:xhttp://schemas.microsoft.com/winfx/2006/xamlxmlns:controlsclr-namespace:WPFDevelopers.ControlsResourceDictionary.MergedDictionariesResourceDictionary SourceBasic/ControlBasic.xaml/ResourceDictionary Source../Styles/Styles.Buttons.xaml//ResourceDictionary.MergedDictionariesStyle x:KeyRectangleStyle TargetType{x:Type Rectangle}Setter PropertyFill Value{StaticResource BlackSolidColorBrush}/Setter PropertyOpacity Value.5/
/StyleStyle TargetType{x:Type controls:ScreenCut} BasedOn{StaticResource ControlBasicStyle}Setter PropertyWindowState ValueMaximized/Setter PropertyWindowStyle ValueNone/Setter PropertyTemplateSetter.ValueControlTemplate TargetType{x:Type controls:ScreenCut}Canvas x:NamePART_CanvasWidth{Binding Source{x:Static SystemParameters.PrimaryScreenWidth}}Height{Binding Source{x:Static SystemParameters.PrimaryScreenHeight}}Rectangle x:NamePART_RectangleLeft Style{StaticResource RectangleStyle}/Rectangle x:NamePART_RectangleTop Style{StaticResource RectangleStyle}/Rectangle x:NamePART_RectangleRight Style{StaticResource RectangleStyle}/Rectangle x:NamePART_RectangleBottom Style{StaticResource RectangleStyle}/Border x:NamePART_Border BorderBrush{StaticResource SuccessPressedSolidColorBrush} BorderThickness1/WrapPanel x:NamePART_WrapPanel VisibilityHidden Panel.ZIndex99Height38 Background{StaticResource WhiteSolidColorBrush}VerticalAlignmentCenterButton x:NamePART_ButtonSave Style{StaticResource PathButton}ToolTip保存 Margin10,0,0,0Button.ContentPath Fill{StaticResource InfoPressedSolidColorBrush} Width18 Height18 StretchFill Data{StaticResource PathSave}//Button.Content/ButtonButton x:NamePART_ButtonCancel Style{StaticResource PathButton}ToolTip取消Button.ContentPath Fill{StaticResource DangerPressedSolidColorBrush} Width14 Height14 StretchFill Data{StaticResource PathCancel}//Button.Content/ButtonButton x:NamePART_ButtonComplete Style{StaticResource PathButton}ToolTip完成 Margin0,0,10,0Button.ContentPath Fill{StaticResource SuccessPressedSolidColorBrush} Width20 Height15 StretchFill Data{StaticResource PathComplete}//Button.Content/Button/WrapPanel/Canvas/ControlTemplate/Setter.Value/Setter
/Style
/ResourceDictionary三、ScreenCutExample.xaml 代码如下var screenCut new ScreenCut();screenCut.ShowDialog();源码地址githubhttps://github.com/yanjinhuagood/WPFDevelopers.gitgiteehttps://gitee.com/yanjinhua/WPFDevelopers.gitWPF开发者QQ群 340500857 blogs https://www.cnblogs.com/yanjinhuaGithubhttps://github.com/yanjinhuagood出处https://www.cnblogs.com/yanjinhua版权本作品采用「署名-非商业性使用-相同方式共享 4.0 国际」许可协议进行许可。转载请著名作者 出处 https://github.com/yanjinhuagood
