c#仿windows画图程序完整版

注意：本程序采用vs2008版，不兼容vs2005。

如果觉得可以就收藏吧。本程序仅供做c#实验的同学的一个参考。画图程序设计

实验目的：

1.了解.net下多媒体编程技术。

2.掌握Graphics类绘制图像的方法。

3.掌握使用GDI+技术显示和保存图像的方法。

实验要求：

1.设计一个画图程序。

2.可以绘制各种图形，可以选择画笔的线型和颜色。

3.可以将绘制的图像保存为位图文件。

Form1.cs

//主程序代码

using System;

using System.Collections.Generic;

using ponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Drawing.Drawing2D;

using System.Collections;

using ;

using .Sockets;

using System.Threading;

namespace WindowsApplication1

{

public enum LineStyle { SOLID, DASH, DOT};

public partial class FrmDraw : Form

{

private Color PenColor;

private enum Shape { LINE, ELLIPSE, RECTANGLE, CIRCLE, FillRectangle, Pencil, Eraser, ELLIPSE1 };

private Shape DrawShape;

private Point StartPoint;

private Point EndPoint;

private Point z;

public Graphics gps;

private bool MouseDownFlag;

private Pen PenLine;

private SolidBrush Solid;

private Hashtable DrawObject;

private int count;

private string ShapeName;

private LineStyle lineStyle;

private bool isOpen;

private string imagePath;

private string strShape;

private string strLineStyle;

PaintEventArgs e1 = null;

int i = 0;

int j = 0;

int x2 = -1, y2 = -1;

public FrmDraw()

{

isOpen = false;

count = 0;

lineStyle = LineStyle.SOLID;

MouseDownFlag = false;

PenLine = new Pen(PenColor);

PenColor = System.Drawing.Color.Black;

DrawShape = Shape.LINE;

DrawObject = new Hashtable();

ShapeName = "LINE";

strShape = "直线";

strLineStyle = "实线";

InitializeComponent();

}

//自定义颜色

private void CoustumColor_Click(object sender, EventArgs e) {

if (colorDialog.ShowDialog() == DialogResult.OK)

{

PenColor = colorDialog.Color;

}

}

//鼠标事件

private void FrmDraw_MouseDown(object sender, MouseEventArgs e)

{

MouseDownFlag = true;

StartPoint.X = e.X;

StartPoint.Y = e.Y;

z.X = e.X;

z.Y = e.Y;

//Color clr = GetBkColor(new Point(e.X, e.Y));

// MessageBox.Show("R" + clr.R.ToString() + "G" + clr.G.ToString() + "B" + clr.B.ToString());

}

private void FrmDraw_MouseMove(object sender, MouseEventArgs e)

{

if (MouseDownFlag)

{

Color BkColor = this.BackColor;//Color.FromArgb(212, 208, 200);

if(DrawObject != null)

{

foreach (DictionaryEntry de in DrawObject)

{

string[] splipstr = de.Key.ToString().Split('|');

switch (splipstr[0])

{

case"Pencil":

((Pencil)de.Value).Draw(gps);

break;

case"LINE":

((DrawLine)de.Value).Draw(gps);

break;

case"ELLIPSE":

((DrawEelipse)de.Value).Draw(gps);

break;

case"RECTANGLE":

((DrawRectangle)de.Value).Draw(gps);

break;

case"CIRCLE":

((CIRCLE)de.Value).Draw(gps);