在发现有一款播放软件禁止截图功能后，使用了其他的截图工具发现都会被播放软件禁用掉截图功能，想了下试着自己做一个截图工具，也可以方便将截图工具添加在以后的项目中，是制作过程中也考虑到了一台电脑包含多个显示器的情况。

注意：最后发现在修改了屏幕的缩放比例后截图效果异常，由于时间不允许后续有时间再作更新。。

截图效果展示

1 主要文件

屏幕截图中主要文件包含
FrmScreenShot.cs
FrmScreenShot.Designer.cs
Utility.cs

1.1 FrmScreenShot.cs

using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;namespace ScreenShot
{/// <summary>/// 截取到屏幕的图像/// </summary>public partial class FrmScreenShot : Form{/// <summary>/// 打开截图/// </summary>public static void OpenShotScreen(){try{new FrmScreenShot().Show();}catch (Exception ex){}}private readonly EBoundType[] _AllBoundType ={EBoundType.Updata_1,EBoundType.Updata_2,EBoundType.Updata_3,EBoundType.Updata_4,EBoundType.Updata_5,EBoundType.Updata_6,EBoundType.Updata_7,EBoundType.Updata_8,EBoundType.Updata_9,};private Bitmap _bmp;/// <summary>/// 鼠标按下、抬起（移动时的位置）/// </summary>private Point _mouseDownLocation, _mouseUpLocation;/// <summary>/// 当前选择边角类型/// </summary>public EBoundType _boundType = EBoundType.Wait;/// <summary>/// 图像绘制区域/// </summary>private Rectangle _bitmapDrawRect;/// <summary>/// 选择的区域（获取到鼠标在屏幕的坐标）/// </summary>private Rectangle _selectRect, _selectRectLast;/// <summary>/// 选择区域的边角区域尺寸/// </summary>private Size _boundAreaWidth = new Size(6, 6);public FrmScreenShot(){InitializeComponent();StartPosition = FormStartPosition.WindowsDefaultLocation;_bmp = Utility.CopyScreenToImage(out _bitmapDrawRect);this.Bounds = _bitmapDrawRect;this.DoubleBuffered = true;}private void FrmScreenBitmap_Load(object sender, EventArgs e){this.Location = _bitmapDrawRect.Location;}[Description("绘图事件")]private void FrmScreenBitmap_Paint(object sender, PaintEventArgs e){if (_bmp == null) return;var font = new Font("微软雅黑", 14F, FontStyle.Regular, GraphicsUnit.Point, 134);var g = e.Graphics;var bitmapDrawRect = new RectangleF(0, 0, _bitmapDrawRect.Width, _bitmapDrawRect.Height);g.Clear(Color.Empty);g.SmoothingMode = SmoothingMode.HighQuality; //指定抗锯齿的呈现//图像绘制区域var drawArea = new RectangleF(0, 0, _bmp.Width, _bmp.Height);g.DrawImage(_bmp, bitmapDrawRect, drawArea, GraphicsUnit.Pixel);//绘制图像Utility.DrawTransparencyFillRect(g, bitmapDrawRect);//绘制未选择区域时最大边框区域if (_boundType == EBoundType.Wait){var lineWidth = Utility.MPen.Width;var rect = new RectangleF{X = bitmapDrawRect.X + lineWidth,Y = bitmapDrawRect.Y + lineWidth,Width = bitmapDrawRect.Width - lineWidth * 2,Height = bitmapDrawRect.Height - lineWidth * 2,};Utility.DrawRect(g, rect);g.DrawString($"{bitmapDrawRect.Width} x {bitmapDrawRect.Height}", font, new SolidBrush(Color.White), rect.Location);}else{var rect = RectFormat(_selectRect); ;var p2 = new PointF(rect.X + rect.Width, rect.Y + rect.Height);Utility.DrawRect(g, rect.Location, p2);g.DrawImage(_bmp, rect, rect, GraphicsUnit.Pixel); //绘制图像foreach (EBoundType type in _AllBoundType){if (type == EBoundType.None || type == EBoundType.Updata_5)continue;Utility.DrawFillRect(g, GetBoundRect(type, rect));}//绘制当前选区的信息string text = $"{rect.Width} x {rect.Height}";var textLocation = rect.Location;var textHeight = (int)g.MeasureString(text, font).Height;textLocation.Y -= textHeight;if (textLocation.Y < textHeight){textLocation.Y = rect.Y;}g.DrawString(text, font, new SolidBrush(Color.White), textLocation);}}[Description("监控所有按键")]protected override bool ProcessCmdKey(ref Message msg, Keys keyData){if (keyData == Keys.Escape){Exit();return true;}return false;}[Description("鼠标按下：选择区域起点")]private void Form2_MouseDown(object sender, MouseEventArgs e){if (e.Button != MouseButtons.Left) return;SetPanControlState(false);_mouseDownLocation = e.Location;_selectRectLast = _selectRect;switch (_boundType){case EBoundType.Wait:_boundType = EBoundType.SelectIng;_mouseUpLocation = _mouseDownLocation;break;default:_boundType = GetMouseInRectType(_selectRect, e.Location);break;}}[Description("鼠标移动：设置选择区域的尺寸")]private void Form2_MouseMove(object sender, MouseEventArgs e){_mouseUpLocation = e.Location;SetMouseCursor(e.Location);switch (_boundType){case EBoundType.Updata_1:case EBoundType.Updata_2:case EBoundType.Updata_3:case EBoundType.Updata_4:case EBoundType.Updata_6:case EBoundType.Updata_7:case EBoundType.Updata_8:case EBoundType.Updata_9:case EBoundType.Updata_5:case EBoundType.SelectIng:UpdataSelectRect(_mouseDownLocation, _mouseUpLocation, _boundType);Refresh();break;}}[Description("鼠标抬起：确定选择区域")]private void Form2_MouseUp(object sender, MouseEventArgs e){if (e.Button != MouseButtons.Left) return;_mouseUpLocation = e.Location;UpdataSelectRect(_mouseDownLocation, _mouseUpLocation, _boundType);_boundType = EBoundType.End;_selectRect = RectFormat(_selectRect);Refresh();SetPanControlState(true);}[Description("退出截图")]private void pic_Exit_Click(object sender, EventArgs e){Exit();}[Description("保存截图")]private void pic_Save_Click(object sender, EventArgs e){try{SaveFileDialog dialog = new SaveFileDialog();dialog.Filter = "|*.bmp";dialog.FileName = "截图";var ret = dialog.ShowDialog() == DialogResult.OK;if (ret){Bitmap bmp = Utility.GetImageRect(_bmp, _selectRect);string path = dialog.FileName;_bmp.Save(path, ImageFormat.Bmp);Process.Start(path);Exit();}}catch (Exception ex){MessageBox.Show(ex.Message, "异常");}}/// <summary>/// 更新选择区域参数/// </summary>private void UpdataSelectRect(Point down, Point up, EBoundType boundType){switch (boundType){case EBoundType.SelectIng:_selectRect.Location = new Point(Math.Min(down.X, up.X), Math.Min(down.Y, up.Y));_selectRect.Size = new Size(Math.Abs(down.X - up.X), Math.Abs(down.Y - up.Y));break;case EBoundType.Updata_1:_selectRect.X = _selectRectLast.X + (up.X - down.X);_selectRect.Y = _selectRectLast.Y + (up.Y - down.Y);_selectRect.Width = _selectRectLast.Width + (down.X - up.X);_selectRect.Height = _selectRectLast.Height + (down.Y - up.Y);break;case EBoundType.Updata_2:_selectRect.Y = _selectRectLast.Y + (up.Y - down.Y);_selectRect.Height = _selectRectLast.Height + (down.Y - up.Y);break;case EBoundType.Updata_3:_selectRect.Y = _selectRectLast.Y + (up.Y - down.Y);_selectRect.Width = _selectRectLast.Width + (up.X - down.X);_selectRect.Height = _selectRectLast.Height + (down.Y - up.Y);break;case EBoundType.Updata_4:_selectRect.X = _selectRectLast.X + (up.X - down.X);_selectRect.Width = _selectRectLast.Width + (down.X - up.X);break;case EBoundType.Updata_6:_selectRect.Width = _selectRectLast.Width + (up.X - down.X);break;case EBoundType.Updata_7:_selectRect.X = _selectRectLast.X + (up.X - down.X);_selectRect.Width = _selectRectLast.Width + (down.X - up.X);_selectRect.Height = _selectRectLast.Height + (up.Y - down.Y);break;case EBoundType.Updata_8:_selectRect.Height = _selectRectLast.Height + (up.Y - down.Y);break;case EBoundType.Updata_9:_selectRect.Width = _selectRectLast.Width + (up.X - down.X);_selectRect.Height = _selectRectLast.Height + (up.Y - down.Y);break;case EBoundType.Updata_5:_selectRect.X = _selectRectLast.X + up.X - down.X;_selectRect.Y = _selectRectLast.Y + up.Y - down.Y;break;}}private Rectangle RectFormat(Rectangle rect){if (rect.Width < _bitmapDrawRect.X){rect.X += rect.Width;rect.Width = Math.Abs(rect.Width);}if (rect.Height < _bitmapDrawRect.Y){rect.Y += rect.Height;rect.Height = Math.Abs(rect.Height);}rect.Location = new Point(Math.Min(Math.Max(0, rect.X), _bitmapDrawRect.Width - rect.Width), Math.Min(Math.Max(0, rect.Y), _bitmapDrawRect.Height - rect.Height));return rect;}/// <summary>/// 设置鼠标指针样式/// </summary>private void SetMouseCursor(Point mouseLotion){var cursor = Cursors.Arrow;switch (GetMouseInRectType(_selectRect, mouseLotion)){case EBoundType.Updata_1:case EBoundType.Updata_9:cursor = Cursors.SizeNWSE;break;case EBoundType.Updata_2:case EBoundType.Updata_8:cursor = Cursors.SizeNS;break;case EBoundType.Updata_3:case EBoundType.Updata_7:cursor = Cursors.SizeNESW;break;case EBoundType.Updata_4:case EBoundType.Updata_6:cursor = Cursors.SizeWE;break;case EBoundType.Updata_5:cursor = Cursors.SizeAll;break;}this.Cursor = cursor;}private void Exit() => this.Close();/// <summary>/// 设置控件位置和装填/// </summary>private void SetPanControlState(bool mouseUp){if (mouseUp){var location = _selectRect.Location;location.X += _selectRect.Width;location.Y += _selectRect.Height + 5;location.X -= pan_Control.Width + 5;location.X = Math.Max(_selectRect.X, location.X);if (location.Y + pan_Control.Height > _bitmapDrawRect.Y + _bitmapDrawRect.Height)location.Y = _selectRect.Y - pan_Control.Height - 5;if (location.Y < 0)location.Y = _selectRect.Y + _selectRect.Height - pan_Control.Height - 5;pan_Control.Location = location;}pan_Control.Visible = mouseUp;}/// <summary>/// 获取指定区域当前鼠标所在该区域位置的类型/// </summary>/// <param name="rect"></param>/// <returns></returns>private EBoundType GetMouseInRectType(Rectangle rect, Point mouseLotion){var location = mouseLotion;var areaWidth = 3;if (!new Rectangle(rect.X - areaWidth, rect.Y - areaWidth, rect.Width + areaWidth * 2, rect.Height + areaWidth * 2).Contains(location))return EBoundType.None;foreach (EBoundType type in _AllBoundType){var newRect = GetBoundRect(type, rect);if (newRect.Contains(location)){return type;}}return EBoundType.None;}/// <summary>/// 根据选取类型和指定区域获取选取边界的点的小区域/// </summary>/// <param name="type">选取类型</param>/// <param name="rect">指定区域</param>/// <param name="isBigRect">边界点区域的大小控制</param>/// <returns></returns>private Rectangle GetBoundRect(EBoundType type, Rectangle rect){switch (type){case EBoundType.Updata_1:case EBoundType.Updata_2:case EBoundType.Updata_3:case EBoundType.Updata_4:case EBoundType.Updata_6:case EBoundType.Updata_7:case EBoundType.Updata_8:case EBoundType.Updata_9:var location = GetBoundPoint(type, rect);var newRect = GetRecttangleByPoint(location);return newRect;case EBoundType.Updata_5:return rect;default:throw new Exception("空局域");}}/// <summary>/// 获取指定区域的指定边角类型对应的点坐标/// </summary>private Point GetBoundPoint(EBoundType type, Rectangle rect){switch (type){case EBoundType.Updata_1:return new Point(rect.X, rect.Y);case EBoundType.Updata_2:return new Point(rect.X + rect.Width / 2, rect.Y);case EBoundType.Updata_3:return new Point(rect.X + rect.Width, rect.Y);case EBoundType.Updata_4:return new Point(rect.X, rect.Y + rect.Height / 2);case EBoundType.Updata_5:return new Point(rect.X + rect.Width / 2, rect.Y + rect.Height / 2);case EBoundType.Updata_6:return new Point(rect.X + rect.Width, rect.Y + rect.Height / 2);case EBoundType.Updata_7:return new Point(rect.X, rect.Y + rect.Height);case EBoundType.Updata_8:return new Point(rect.X + rect.Width / 2, rect.Y + rect.Height);case EBoundType.Updata_9:return new Point(rect.X + rect.Width, rect.Y + rect.Height);default:throw new Exception("空局域");}}/// <summary>/// 获取边角区域的Rectangle/// </summary>/// <param name="p"></param>/// <returns></returns>private Rectangle GetRecttangleByPoint(Point p) => new Rectangle{X = p.X - _boundAreaWidth.Width / 2,Y = p.Y - _boundAreaWidth.Height / 2,Size = _boundAreaWidth};}/// <summary>/// 鼠标所在区域的类型/// </summary>public enum EBoundType{None = 1,Updata_1,Updata_2,Updata_3,Updata_4,Updata_6,Updata_7,Updata_8,Updata_9,/// <summary>/// 五号区域标识当前选中区域拖动/// </summary>Updata_5,Wait,SelectIng,End,}}

1.2 FrmScreenShot.Designer.cs

namespace ScreenShot
{partial class FrmScreenShot{/// <summary>/// Required designer variable./// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// Clean up any resources being used./// </summary>/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows Form Designer generated code/// <summary>/// Required method for Designer support - do not modify/// the contents of this method with the code editor./// </summary>private void InitializeComponent(){this.pic_Save = new System.Windows.Forms.PictureBox();this.pic_Exit = new System.Windows.Forms.PictureBox();this.pan_Control = new System.Windows.Forms.Panel();((System.ComponentModel.ISupportInitialize)(this.pic_Save)).BeginInit();((System.ComponentModel.ISupportInitialize)(this.pic_Exit)).BeginInit();this.pan_Control.SuspendLayout();this.SuspendLayout();// // pic_Save// this.pic_Save.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) | System.Windows.Forms.AnchorStyles.Left)));this.pic_Save.BackColor = System.Drawing.Color.Transparent;this.pic_Save.BackgroundImage = global::截取屏幕.Properties.Resources.对错_对;this.pic_Save.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;this.pic_Save.Cursor = System.Windows.Forms.Cursors.Arrow;this.pic_Save.Location = new System.Drawing.Point(44, 0);this.pic_Save.Margin = new System.Windows.Forms.Padding(0);this.pic_Save.Name = "pic_Save";this.pic_Save.Size = new System.Drawing.Size(27, 35);this.pic_Save.TabIndex = 3;this.pic_Save.TabStop = false;this.pic_Save.Click += new System.EventHandler(this.pic_Save_Click);// // pic_Exit// this.pic_Exit.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) | System.Windows.Forms.AnchorStyles.Left)));this.pic_Exit.BackColor = System.Drawing.Color.Transparent;this.pic_Exit.BackgroundImage = global::截取屏幕.Properties.Resources.对错_错;this.pic_Exit.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;this.pic_Exit.Cursor = System.Windows.Forms.Cursors.Arrow;this.pic_Exit.Location = new System.Drawing.Point(9, 0);this.pic_Exit.Margin = new System.Windows.Forms.Padding(0);this.pic_Exit.Name = "pic_Exit";this.pic_Exit.Size = new System.Drawing.Size(27, 35);this.pic_Exit.TabIndex = 4;this.pic_Exit.TabStop = false;this.pic_Exit.Click += new System.EventHandler(this.pic_Exit_Click);// // pan_Control// this.pan_Control.BackColor = System.Drawing.Color.White;this.pan_Control.Controls.Add(this.pic_Exit);this.pan_Control.Controls.Add(this.pic_Save);this.pan_Control.Location = new System.Drawing.Point(35, 26);this.pan_Control.Name = "pan_Control";this.pan_Control.Size = new System.Drawing.Size(81, 35);this.pan_Control.TabIndex = 5;this.pan_Control.Visible = false;// // FrmScreenShot// this.AutoScaleDimensions = new System.Drawing.SizeF(10F, 20F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;this.ClientSize = new System.Drawing.Size(716, 593);this.Controls.Add(this.pan_Control);this.Cursor = System.Windows.Forms.Cursors.Arrow;this.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;this.Margin = new System.Windows.Forms.Padding(4);this.Name = "FrmScreenShot";this.ShowInTaskbar = false;this.Text = "Form2";this.TopMost = true;this.Load += new System.EventHandler(this.FrmScreenBitmap_Load);this.Paint += new System.Windows.Forms.PaintEventHandler(this.FrmScreenBitmap_Paint);this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.Form2_MouseDown);this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.Form2_MouseMove);this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.Form2_MouseUp);((System.ComponentModel.ISupportInitialize)(this.pic_Save)).EndInit();((System.ComponentModel.ISupportInitialize)(this.pic_Exit)).EndInit();this.pan_Control.ResumeLayout(false);this.ResumeLayout(false);}#endregionprivate System.Windows.Forms.PictureBox pic_Save;private System.Windows.Forms.PictureBox pic_Exit;private System.Windows.Forms.Panel pan_Control;}
}

1.1 Utility.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;/************************************************************************************ 模块作者:Zheng* 创建时间:2023/11/16 14:31:29* 功能描述:* * 使用说明:* * ************************************************************************************/namespace ScreenShot
{public class Utility{public static Pen MPen = new Pen(Brushes.GreenYellow, 3);[DllImport("user32.dll")] //导入user32.dll函数库private static extern bool GetCursorPos(out Point lpPoint);//获取鼠标坐标/// <summary>/// 获取屏幕图片/// </summary>/// <param name="upperLeftSource">相对于左上角的坐标</param>/// <param name="size">图片大小</param>/// <returns>截取到的图片</returns>public static Bitmap CopyScreenToImage(Point upperLeftSource, Size size){// 创建一个bitmap对象并将其设置为屏幕大小var bitmap = new Bitmap(size.Width, size.Height);// 创建一个Graphics对象并将其设置为using (var g = Graphics.FromImage(bitmap)){// 将整个屏幕绘制到Graphics对象中g.CopyFromScreen(upperLeftSource, Point.Empty, size);}//string path = "1.bmp";//bitmap.Save(path, ImageFormat.Bmp);//Process.Start(path);// 将截图保存为jpg文件return bitmap;}/// <summary>/// 获取全屏图片/// </summary>/// <returns>截取到的图片</returns>public static Bitmap CopyScreenToImage(out Rectangle _bitmapDrawRect){//todo _bitmapDrawRect = GetAllScreenRect();//_bitmapDrawRect = Screen.GetBounds(Point.Empty);return CopyScreenToImage(_bitmapDrawRect.Location, _bitmapDrawRect.Size);}/// <summary>/// 获取所有屏幕的区域/// </summary>/// <returns></returns>public static Rectangle GetAllScreenRect(){int xMin = 0;int yMin = 0;int xMax = 0;int yMax = 0;foreach (var screen in Screen.AllScreens){xMin = Math.Min(xMin, screen.Bounds.X);yMin = Math.Min(yMin, screen.Bounds.Y);xMax = Math.Max(xMax, screen.Bounds.X + screen.Bounds.Width);yMax = Math.Max(yMax, screen.Bounds.Y + screen.Bounds.Height);}var rect = new Rectangle(xMin, yMin, xMax - xMin, yMax - yMin);return rect;}/// <summary>/// 获取鼠标在屏幕中的坐标/// </summary>/// <returns></returns>public static Point GetMousePose(){Point mp = new Point();GetCursorPos(out mp);return mp;}/// <summary>/// 绘制图像(按比例填充)/// </summary>/// <param name="e">绘画类</param>/// <param name="bmp">图像</param>/// <param name="size">承载图像的父控件大小</param>public static void DrawImage(Graphics e, Bitmap bmp, SizeF size){//父控件大小 和Bitmap 的宽高比var picByBmpScale = Math.Min(size.Width / bmp.Width, size.Height / bmp.Height);//1.图像位置大小var bmpPos = new RectangleF{Width = bmp.Width * picByBmpScale,Height = bmp.Height * picByBmpScale};bmpPos.X = (size.Width - bmpPos.Width) / 2;bmpPos.Y = (size.Height - bmpPos.Height) / 2;//2.图像绘制区域var drawArea = new RectangleF{X = 0,Y = 0,Width = bmp.Width,Height = bmp.Height};//绘制图像e.SmoothingMode = SmoothingMode.HighQuality;//指定抗锯齿的呈现e.DrawImage(bmp, bmpPos, drawArea, GraphicsUnit.Pixel);//绘制图像}/// <summary>/// 根据两点绘制矩形/// </summary>/// <param name="e"></param>/// <param name="firstPoint">第一个点</param>/// <param name="secondPoint">第二个点</param>public static void DrawRect(Graphics e, PointF firstPoint, PointF secondPoint){var x1 = firstPoint.X;var y1 = firstPoint.Y;var x2 = secondPoint.X;var y2 = secondPoint.Y;if (x1 > x2){x1 = x1 + x2;x2 = x1 - x2;x1 = x1 - x2;}if (y1 > y2){y1 = y1 + y2;y2 = y1 - y2;y1 = y1 - y2;}e.DrawRectangle(MPen, x1, y1, x2 - x1, y2 - y1);}/// <summary>/// 根据两点绘制(填充)矩形/// </summary>/// <param name="e"></param>/// <param name="firstPoint">第一个点</param>/// <param name="secondPoint">第二个点</param>public static void DrawFillRect(Graphics e, PointF firstPoint, PointF secondPoint){var x1 = firstPoint.X;var y1 = firstPoint.Y;var x2 = secondPoint.X;var y2 = secondPoint.Y;if (x1 > x2){x1 = x1 + x2;x2 = x1 - x2;x1 = x1 - x2;}if (y1 > y2){y1 = y1 + y2;y2 = y1 - y2;y1 = y1 - y2;}SolidBrush brushgreen = new SolidBrush(Color.DarkSlateGray);e.FillRectangle(brushgreen, x1, y1, x2 - x1, y2 - y1);e.DrawRectangle(MPen, x1, y1, x2 - x1, y2 - y1);}/// <summary>/// 绘制有透明度的(填充)矩形/// </summary>/// <param name="e"></param>/// <param name="rect">第一个点</param>public static void DrawTransparencyFillRect(Graphics e, RectangleF rect){Color customColor = Color.FromArgb(100, Color.Black);SolidBrush shadowBrush = new SolidBrush(customColor);e.FillRectangle(shadowBrush, rect);//e.DrawRectangles(MPen, new[] { rect });}/// <summary>/// 绘制矩形/// </summary>/// <param name="e"></param>/// <param name="rect">矩形区域</param>public static void DrawRect(Graphics e, RectangleF rect){e.DrawRectangles(MPen, new[] { rect });}/// <summary>/// 绘制(填充)矩形/// </summary>/// <param name="e"></param>/// <param name="rect">矩形区域</param>public static void DrawFillRect(Graphics e, RectangleF rect){SolidBrush brushgreen = new SolidBrush(MPen.Color);e.FillRectangle(brushgreen, rect);}/// <summary>/// 在控件指定坐标点绘制文本/// </summary>/// <param name="e"></param>/// <param name="point">指定坐标点</param>/// <param name="font">文本字体</param>/// <param name="text">文本内容</param>public static void DrawText(Graphics e, PointF point, Font font, string text){SolidBrush Mbrushgreen = new SolidBrush(Color.Red);e.DrawString(text, font, Mbrushgreen, point);}/// <summary>/// 获取图像指定区域/// </summary>/// <param name="sourcebitmap">相对于左上角的坐标</param>/// <param name="rect">图片大小</param>/// <returns>截取到的图片</returns>public static Bitmap GetImageRect(Bitmap sourcebitmap, Rectangle rect){// 创建一个bitmap对象var bitmap = new Bitmap(rect.Width, rect.Height);// 创建一个Graphics对象并将其设置为var g = Graphics.FromImage(bitmap);// 目标位置 var rect1 = new Rectangle(new Point(0, 0), rect.Size);// 原图位置 var rect2 = new Rectangle(new Point(rect.X, rect.Y), rect.Size);g.DrawImage(sourcebitmap, rect1, rect2, GraphicsUnit.Pixel);return bitmap;}}
}