窗体界面设计03

 01.百味窗图像动画效果

 Bitmap对象的GetPixel()方法的应用

 Bitmap对象的SetPixel()方法的应用

        Bitmap MyBitmap;                                                            //事件公用变量

        private void button1_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter =                                                //设置打开图像的类型
                "*.jpg,*.jpeg,*.bmp,*.gif,*.ico,*png,*.tif,*.wmf|*.jpg;*.jpeg;*.bmp;*.gif;*.ico;*.png;*.tif;*.wmf";
            this.openFileDialog1.ShowDialog();                                      //打开对话框
            if (this.openFileDialog1.FileName.Trim() == "")
                return;
            try
            {
                Bitmap SrcBitmap = new Bitmap(this.openFileDialog1.FileName);       //把打开的图像赋给Bitmap变量
                MyBitmap = new Bitmap(SrcBitmap, this.pictureBox1.Width, this.pictureBox1.Height);
                this.pictureBox1.Image = MyBitmap;                                  //在控件上显示图像
            }
            catch (Exception Err)
            {
                MessageBox.Show(this, "打开图像文件错误！", "信息提示",             //提示对话框
                    MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            MyBitmap = (Bitmap)this.pictureBox1.Image.Clone();                      //为公用变量MyBitmap赋值
            int dh = MyBitmap.Height / 20;                                          //定义变量并赋值
            int dw = MyBitmap.Width;
            Graphics g = this.pictureBox1.CreateGraphics();                         //定义Graphics对象案例
            g.Clear(Color.Gray);
            Point[] MyPoint = new Point[20];                                        //定义点数组
            for (int y = 0; y < 20; y++)                                            //利用For循环为点数组赋值
            {
                MyPoint[y].X = 0;
                MyPoint[y].Y = y * dh;
            }
            Bitmap bitmap = new Bitmap(MyBitmap.Width, MyBitmap.Height);
            for (int i = 0; i < dh; i++)
            {
                for (int j = 0; j < 20; j++)
                {
                    for (int k = 0; k < dw; k++)
                    {
                        bitmap.SetPixel(MyPoint[j].X + k, MyPoint[j].Y + i, MyBitmap.GetPixel(MyPoint[j].X + k, MyPoint[j].Y + i));
                    }
                }
                this.pictureBox1.Refresh();                                             //刷新图像
                this.pictureBox1.Image = bitmap;
                System.Threading.Thread.Sleep(10);
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            MyBitmap = (Bitmap)this.pictureBox1.Image.Clone();
            int dw = MyBitmap.Width / 30;
            int dh = MyBitmap.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            Point[] MyPoint = new Point[30];
            for (int x = 0; x < 30; x++)
            {
                MyPoint[x].Y = 0;
                MyPoint[x].X = x * dw;
            }
            Bitmap bitmap = new Bitmap(MyBitmap.Width, MyBitmap.Height);
            for(int i=0;i<dw;i++)
            {
                for(int j=0;j<30;j++)
                {
                    for(int k=0;k<dh;k++)
                    {
                        bitmap.SetPixel(MyPoint[j].X+i,MyPoint[j].Y+k,MyBitmap.GetPixel(MyPoint[j].X+i,MyPoint[j].Y+k));
                    }
                }
                this.pictureBox1.Refresh();
                this.pictureBox1.Image=bitmap;
                System.Threading.Thread.Sleep(10);
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.Close();
            Application.Exit();
        }

 02.翻转和扩展图像动画效果

 MessageBox.Show()方法的应用

 Graphics对象的DrawImage()方法的应用

        Bitmap MyBitmap;                                                            //事件公用变量

        private void button1_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter =                                                //设置打开图像的类型
                "*.jpg,*.jpeg,*.bmp,*.gif,*.ico,*.png,*.tif,*.wmf|*.jpg;*.jpeg;*.bmp;*.gif;*.ico;*.png;*.tif;*.wmf";
            this.openFileDialog1.ShowDialog();                                      //打开对话框
            if (this.openFileDialog1.FileName.Trim() == "")
                return;
            try
            {
                Bitmap SrcBitmap = new Bitmap(this.openFileDialog1.FileName);       //把打开的图像赋给Bitmap变量
                MyBitmap = new Bitmap(SrcBitmap, this.pictureBox1.Width, this.pictureBox1.Height);
                this.pictureBox1.Image = MyBitmap;                                  //在控件上显示图像
            }
            catch (Exception Err)
            {
                MessageBox.Show(this, "打开图像文件错误！", "信息提示",             //提示对话框
                    MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            int iWidth = this.pictureBox1.Width;                                    //图像宽度
            int iHeight = this.pictureBox1.Height;                                  //图像高度
            Graphics g = this.pictureBox1.CreateGraphics();                         //创建Graphics对象实例
            g.Clear(Color.Gray);                                                    //初始为全灰色
            for (int x = -iWidth / 2; x <= iWidth / 2; x++)                         //翻转图像
            {
                Rectangle DestRect = new Rectangle(0, iHeight / 2 - x, iWidth, 2 * x);
                Rectangle SrcRect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height);
                g.DrawImage(MyBitmap, DestRect, SrcRect, GraphicsUnit.Pixel);
                System.Threading.Thread.Sleep(10);
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            int iWidth = this.pictureBox1.Width;                                    //图像宽度
            int iHeight = this.pictureBox1.Height;                                  //图像高度
            Graphics g = this.pictureBox1.CreateGraphics();                         //创建Graphics对象实例
            g.Clear(Color.Gray);                                                    //初始为全灰色
            for (int x = 0; x <= iWidth / 2; x++)                                   //扩展图像
            {
                Rectangle DestRect = new Rectangle(iWidth / 2 - x, iHeight / 2 - x, 2 * x, 2 * x);
                Rectangle SrcRect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height);
                g.DrawImage(MyBitmap, DestRect, SrcRect, GraphicsUnit.Pixel);
                System.Threading.Thread.Sleep(10);
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.Close();
        }

 03.图像的纹理和浮雕效果

 Bitmap对象的GetPixel()方法的应用

 Bitmap对象的SetPixel()方法的应用

 BitmapData对象的Scan0属性

 Bitmap对象的LockBits()方法，语法结构：

 public System.Drawing.Imaging.BitmapData LockBits(

 System.Drawing.Rectangle rect,

 System.Drawing.Imaging.ImageLockMode flags,

 System.Drawing.Imaging.PixelFormat format,

 System.Drawing.Imaging.BitmapData bitmapData)

 参数意义：

 rect:矩形结构，它指定要锁定的System.Drawing.Bitmap的部分。

 flags:指定System.Drawing.Bitmap的访问级别（读/写）。

 format:一个PixelFormat值，它指示System.Drawing.Bitmap的数据格式。

 bitmapData:包含有关锁定操作的信息。

 System.Runtime.InteropServices.Marshal类的Copy()方法。

 public static void Copy(byte[] source,int startIndex,System.IntPtr destination,int length)

 参数意义：

 source从中进行复制的一维数据。

 startIndex：数据中复制(Copy)开始位置的从0开始的索引。

 destination:要复制的内存指针。

 length:要复制的数组元素的数目。

        Bitmap Mybitmap;                                                          //事件公用变量

        private void button1_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter =                                              //设置打开图像的类型
                "*.jpg,*.jpeg,*.bmp,*.gif,*.ico,*.png,*.tif,*.wmf|*.jpg;*.jpeg;*.bmp;*.gif;*.ico;*.png;*.tif;*.wmf";
            this.openFileDialog1.ShowDialog();                                    //打开对话框
            if (this.openFileDialog1.FileName.Trim() == "")
                return;
            try
            {
                Bitmap SrcBitmap = new Bitmap(this.openFileDialog1.FileName);     //把打开的图像赋给Bitmap变量
                Mybitmap = new Bitmap(SrcBitmap, this.pictureBox1.Width, this.pictureBox1.Height);
                this.pictureBox1.Image = Mybitmap;                                //在控件上显示图像
            }
            catch
            {
                MessageBox.Show(this, "打开图像文件错误！", "信息提示",           //提示对话框
                    MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Image myImage = System.Drawing.Image.FromFile(openFileDialog1.FileName);
            Mybitmap = new Bitmap(myImage);
            Rectangle rect = new Rectangle(0, 0, Mybitmap.Width, Mybitmap.Height);
                                                                                 //将指定图像锁定到内存中
            System.Drawing.Imaging.BitmapData bmpData=Mybitmap.LockBits(rect,
                System.Drawing.Imaging.ImageLockMode.ReadWrite,Mybitmap.PixelFormat);
            IntPtr ptr = bmpData.Scan0;
            int bytes = Mybitmap.Width * Mybitmap.Height * 3;
            byte[] rgbValues = new byte[bytes];
                                                                                //使用RGB值为声明的rgbValues数组赋值
            System.Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes);
            for (int counter = 0; counter < rgbValues.Length; counter += 3)
                rgbValues[counter] = 125;
                                                                                //使用RGB值为图像的像素点着色
            System.Runtime.InteropServices.Marshal.Copy(rgbValues, 0, ptr, bytes);
                                                                                //从内存中解锁图像
            Mybitmap.UnlockBits(bmpData);
            this.pictureBox1.Image = Mybitmap;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            Image myImage = System.Drawing.Image.FromFile(openFileDialog1.FileName);
            Bitmap myBitmap = new Bitmap(myImage);                              //创建Bitmap对象实例
            for (int i = 0; i < myBitmap.Width - 1; i++)
            {
                for (int j = 0; j < myBitmap.Height - 1; j++)
                {
                    Color Color1 = myBitmap.GetPixel(i, j);                     //调用GetPixel方法获取像素点的颜色
                    Color Color2 = myBitmap.GetPixel(i + 1, j + 1);
                    int red = Math.Abs(Color1.R - Color2.R + 128);              //调用绝对值Abs函数
                    int green = Math.Abs(Color1.G - Color2.G + 128);
                    int blue = Math.Abs(Color1.B - Color2.B + 128);
                    //颜色处理
                    if (red > 255) red = 255;
                    if (red < 0) red = 0;
                    if (green > 255) green = 255;
                    if (green < 0) green = 0;
                    if (blue > 255) blue = 255;
                    if (blue < 0) blue = 0;
                    myBitmap.SetPixel(i, j, Color.FromArgb(red, green, blue));   //用SetPixel()方法设置像素点的颜色
                }
            }
            this.pictureBox1.Image = myBitmap;
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.Close();
            Application.Exit();
        }

 04.图像的马赛克效果

 Bitmap对象的SetPixel()方法的应用

 随机函数Random的应用

        Bitmap Mybitmap;                                                        //事件公用变量

        private void button1_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter =                                            //设置打开图像的类型
               "*.jpg,*.jpeg,*.bmp,*.gif,*.ico,*.png,*.tif,*.wmf|*.jpg;*.jpeg;*.bmp;*.gif;*.ico;*.png;*.tif;*.wmf";
            this.openFileDialog1.ShowDialog();                                  //打开对话框
            if (this.openFileDialog1.FileName.Trim() == "")
                return;
            try
            {
                Bitmap SrcBitmap = new Bitmap(this.openFileDialog1.FileName);   //把打开的图像赋给Bitmap变量
                Mybitmap = new Bitmap(SrcBitmap, this.pictureBox1.Width, this.pictureBox1.Height);
                this.pictureBox1.Image = Mybitmap;                              //在控件上显示图像
            }
            catch
            {
                MessageBox.Show(this, "打开图像文件错误！", "信息提示",         //提示对话框
                    MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Image myImage = System.Drawing.Image.FromFile(openFileDialog1.FileName);
            Mybitmap = new Bitmap(myImage);                                    //创建Bitmap对象实例
            int intWidth = Mybitmap.Width / 10;                                //定义变量并赋值
            int intHeight = Mybitmap.Height / 10;
            Graphics myGraphics = this.CreateGraphics();
            myGraphics.Clear(Color.WhiteSmoke);
            Point[] myPoint = new Point[100];                                  //定义点数组
            for (int i = 0; i <10; i++)                                        //利用双For循环语句为点数组赋值
            {
                for (int j = 0; j < 10; j++)
                {
                    myPoint[i * 10 + j].X = i * intWidth;
                    myPoint[i * 10 + j].Y = j * intHeight;
                }
            }
            Bitmap bitmap = new Bitmap(Mybitmap.Width, Mybitmap.Height);
            for (int i = 0; i < 100; i++)
            {
                Random rand = new Random();                                   //随机函数
                int intPos = rand.Next(100);
                for (int m = 0; m < intWidth; m++)
                {
                    for (int n = 0; n < intHeight; n++)
                    {
                        bitmap.SetPixel(myPoint[intPos].X + m, myPoint[intPos].Y + n,
                            Mybitmap.GetPixel(myPoint[intPos].X + m, myPoint[intPos].Y + n));
                    }
                }
                this.Refresh();                                              //刷新程序
                this.pictureBox1.Image = bitmap;

            }
            for (int k = 0; k < 100; k++)
            {
                for (int m = 0; m < intWidth; m++)
                {
                    for (int n = 0; n < intHeight; n++)
                    {
                        bitmap.SetPixel(myPoint[k].X + m, myPoint[k].Y + n,  //调用SetPixel方法
                            Mybitmap.GetPixel(myPoint[k].X + m, myPoint[k].Y + n));
                    }
                }
                this.Refresh();
                this.pictureBox1.Image = bitmap;                            //在PictureBox控件上显示图像
            }
        }


        private void button3_Click(object sender, EventArgs e)
        {
            this.Close();
        }

 窗体界面设计(完)

 心得：c#界面功能强大，窗体界面易变形，展示效果突出。基本语法得定期练习，窗体的把握准确度有待提高。