宇宙仮面の
C# Programming

 

ImageGDI+(ライン、ペン、ブラシ、テキスト、ビットマップ)

開発環境: Visual Studio 2003 

1.目次

  1. 目次
  2. 目的
  3. 参考
  4. 図形
  5. 破線を描く
  6. LineJoin
  7. LineCap
  8. ハッチブラシを指定して、塗りつぶす
  9. テクスチャーブラシを指定して、塗りつぶす
  10. リニアグラデーションブラシを指定して、塗りつぶす
  11. パスグラデーションブラシを指定して、塗りつぶす
  12. テキストの表示(その1)
  13. テキストの表示(その2)
  14. ビットマップの表示
  15. ビットマップをファイルにセーブする。
  16. その他
  17. テスト用ソースコード

2.目的

基本的なことなので、押さえておかないとね。

3.参考

  1. Microsoft チュートリアル

4.図形

GDI+では、DrawLine, DrawArc など、下図のような図形を Pen 描画することができます。


Pen により線を描く。
Graphics g = e.Graphics;

Point [] points = {new Point(300, 10), new Point(150, 10), new Point(300, 30)};
Pen pen = new Pen(Color.Blue, 10.0F);
g.DrawLines(pen, points);
Brush により図形を塗りつぶす。
Graphics g = e.Graphics;

Image texture = new Bitmap(@"..\..\marble.gif");
Brush textureBrush = new TextureBrush(texture);
g.FillEllipse(textureBrush, 0, 0, 100, 50);

Image

注意
FillPolygon, FillRegion を見てください。同じ星のパスに対して、実行していますが、FillMode が Winding, Alternate で
線分が交差した場合の塗りつぶし方が異なります。

5.破線を描く

線分はでは、破線にすることができます。破線の種類には、次のようなものがあります。
また、独自の破線を定義することもできます。

Pen により破線を描く。
Graphics g = e.Graphics;

Point [] points = {new Point(100, 10), new Point(0, 10), new Point(100, 30)};
Pen pen = new Pen(Color.Blue, 2.0F);

pen.DashStyle = DashStyle.Dash;
g.DrawLines(pen, points);

Image

6.LineJoin

線分の接続部分の形状を指定することができます。
ただし、ある程度線分が太くないと、どのような形状なのかわかりません。

線分の接続形を指定する。
Point [] points = {new Point(100, 20), new Point(50, 20), new Point(100, 40)};
Pen pen = new Pen(Color.Blue, 15.0F);

pen.LineJoin = LineJoin.Bevel;
g.DrawLines(pen, points);

Image

注意
MiterClipped の場合は、Pen.MiterLimit でスレッショルドを指定し、どのぐらいでクリップするのか指定します。

7.LineCap

線分の終端形状をPen.StartCap、Pen.EndCapで指定することができます。
ただし、ある程度線分が太くないと、どのような形状なのかわかりません。

線分の接続形を指定する。
Graphics g = e.Graphics;

Point [] points = {new Point(0, 10), new Point(50, 10), new Point(0, 30)};
Pen pen = new Pen(Color.Blue, 10.0F);
pen.StartCap = pen.EndCap = LineCap.Round;
g.DrawLines(pen, points);

Image

8.ハッチブラシを指定して、塗りつぶす

ブラシには、ハッチブラシという模様の入ったブラシがあります。
デフォルトで下図のようなハッチブラシが用意されています。

ハッチブラシを指定して、塗りつぶす
Graphics g = e.Graphics;

HatchBrush hb = new HatchBrush(HatchStyle.Horizontal, Color.Blue,
Color.FromArgb(100, Color.Cyan));
g.DrawString(hatchStyle.ToString(), this.Font, new SolidBrush(Color.Black), x + 10, y);
g.FillEllipse(hb, x + 10, y + 10, 100, 20);


Image

8.テクスチャーブラシを指定して、塗りつぶす

ビットマップイメージからテクスチャーブラシを作成し、それで塗りつぶすことができます。

ハッチブラシを指定して、塗りつぶす
Graphics g = e.Graphics;

Image texture = new Bitmap(@"..\..\texture.gif");
Brush textureBrush = new TextureBrush(texture);
g.FillRectangle(textureBrush, 0, 0, 100, 50);

Image

9.リニアグラデーションブラシを指定して、塗りつぶす

リニアグラデーションブラシを作成し、それで塗りつぶすことができます。
このとき、LinearGradientMode を指定することにより、グラデーションの方向を指定することができます。
方向は、縦横斜めの4方向を指定できます。

リニアブラシを指定して、塗りつぶす
Graphics g = e.Graphics;

Rectangle r = new Rectangle(0, 20, 100, 40);
LinearGradientBrush lbBD = new LinearGradientBrush(r, Color.Magenta, Color.Blue,
LinearGradientMode.BackwardDiagonal);
g.FillRectangle(lbBD, r);

Image

10.パスグラデーションブラシを指定して、塗りつぶす

パスグラデーションブラシを作成し、それで塗りつぶすことができます。
パスグラデーションブラシでは、各頂点ごとに色を指定できます。
次の図の四角形の例では、4つの頂点がありますから、ブラシの SurroundColors に
要素数4つのColor配列で、マゼンタ、イエロー、レッド、ブルーを指定しています。

注意
頂点数と、SurroundColors の要素数が一致していないと、例外が上がります。

パスグラデーションブラシを指定して、塗りつぶす
Graphics g = e.Graphics;

GraphicsPath path = new GraphicsPath();
path.AddLines(new Point[] {new Point(0, 0), new Point(100, 0), new Point(100, 40), new Point(0, 40)} );

PathGradientBrush pgRect = new PathGradientBrush(path);
pgRect.SurroundColors = new Color[] {
Color.Magenta,
Color.Yellow,
Color.Red,
Color.Blue,
};
g.FillPath(pgRect, path);

Image

11.テキストの表示(その1)

DrawString でテキストを表示できます。

注意
TextRenderingHint でアンチエリアシングの指定ができます。

リニアブラシを指定して、塗りつぶす
Graphics g = e.Graphics;

g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;

g.DrawString("Default Font", this.Font, new SolidBrush(Color.Black), 0, 0);

g.DrawString("Large Font", new Font("New Times Roman", 20.0F), new SolidBrush(Color.Black), 0, 0);

TextureBrush textureBrush = new TextureBrush(new Bitmap(@"..\..\marble.gif"));
g.DrawString("Texture", new Font("Impact", 40.0F), textureBrush, 0, 0);

g.DrawString("Shadow", new Font("Impact", 40.0F), new SolidBrush(Color.Black), 5, 5);
g.DrawString("Shadow", new Font("Impact", 40.0F), textureBrush, 0, 0);

g.RotateTransform(-30.0F, MatrixOrder.Append);
Color transparentRed = Color.FromArgb(100, Color.Blue);
g.DrawString("Uchukamen", new Font("Impact", 40.0F), new SolidBrush(transparentRed), -100, 0);

Image

12.テキストの表示(その2)

DrawString に Rectangle を指定すると、テキストはその四角形に収まるように折り返すことができます。
また、StringFormat を使用すると文字列の左寄せ、中央寄せ、右寄せを指定できます。

リニアブラシを指定して、塗りつぶす
Graphics g = e.Graphics;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;

Font font = new Font("MS Pゴシック", 12);
StringFormat format = new StringFormat();
format.Alignment=StringAlignment.Center;
string str ="C# プログラミング。"
+ "DrawString に Rectangle を指定すると、テキストはその四角形に収まるように折り返す。\n"
+ "StringFormat を使用すると文字列の左寄せ、中央寄せ、右寄せを指定できます。\n";
g.DrawString(str, font, new SolidBrush(Color.Blue), this.pictureBox8.ClientRectangle, format);

Image

13.ビットマップの表示

DrawImage( Bitmap )で画像を表示できます。
画像フォーマットは、、.jpeg、.png、.gif、.bmp、.tiff、.exif、 .icon がサポートされています。

JPEGファイルをロードして、表示する。
Graphics g = e.Graphics;
g.DrawImage(new Bitmap(@"..\..\Shuttle.jpg"), this.pictureBox9.ClientRectangle);


Image

See NASA Copyright Notification

よく使うパターンをメモっておきます。

Imageファイルをオープンするダイアログ
private Bitmap = null;

OpenFileDialog openFileDialog1 = new OpenFileDialog();

openFileDialog1.InitialDirectory = "c:\\" ;
openFileDialog1.Filter = 
    "JPEG files (*.jpg)|*.jpg|GIF files (*.gif)|*.gif|Bitmap files (*.bmp)|*.bmp|All files (*.*)|*.*" ;
openFileDialog1.FilterIndex = 1 ;

if(openFileDialog1.ShowDialog() == DialogResult.OK)
{
    bitmap = new Bitmap(openFileDialog1.FileName);
}

画像ファイルをリサイズして、セーブする。
Bitmap resizedImage = new Bitmap( originalImage, width, height);
resizedImage.Save(filename);
画像ファイルを補間モードを指定したリサイズを行い、セーブする。
Bitmap SrcImage = (Bitmap)Bitmap.FromFile(SrcImageFile);
Bitmap DstImage = new Bitmap(width, height);
Graphics g = Graphics.FromImage(DstImage);

g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(SrcImage, new Rectangle(0,0,width,height), SrcImage.Width, SrcImage.Height, GraphicsUnit.Pixel);
DstImage.Save(DstImageFile, ImageFormat.Jpeg);
JPEG のクオリティを指定して画像をセーブする。
int quality = 50;
ImageCodecInfo encoder = null;
ImageCodecInfo[] encoderInfos = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
foreach (ImageCodecInfo encInfo in encoderInfos) 
{
    if (encInfo.MimeType == "image/jpeg")
    {
        encoder = encInfo;
        break;
    }
}
if (encoder == null)
    throw new Exception("Encoder not found");

EncoderParameters encParams = new EncoderParameters( 1 );
encParams.Param[0] = new EncoderParameter( Encoder.Quality, (long) quality );

Bitmap bitmap = new Bitmap("source.jpg");
bitmap.Save("result.jpg", encoder, encParams);

14.ビットマップをファイルにセーブする。

Bitmap を作成して、Bitmap の Graphics に対して描画を行い、Bitmap.Save(..) メソッドにより、
描画した結果をフォーマットを指定してファイルにセーブできます。

JPEGファイルをロードして、表示する。
Bitmap bmp = new Bitmap(200,200, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(bmp);
g.FillEllipse(new SolidBrush(Color.Blue), 0, 0, 100, 50);
g.DrawString("Hello World", this.Font, new SolidBrush(Color.Yellow), 10, 10);
bmp.Save("test.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

実行結果
Image

15.その他

Graphics.SmoothingMode プロパティ
テキストとグラフィックスのアンチ エイリアシングを設定できます。
AntiAliasアンチエイリアス
Defaultデフォルト
HighQuality低速だが高品質
HighSpeed高速だが低品質
Invalid無効なモード
Noneアンチエリアシングしない

フォームのリサイズ時の再描画

コントロールまたはフォームのサイズが変更されても、Paint イベントは発生しません。
フォームのサイズが変更されたときに Paint イベントを発生させるには、コントロールのスタイルを設定します。

Form.SetStyle( ControlStyles.ResizeRedraw,true );

Graphics オブジェクト使用上の注意

Paint イベントの引数 (PaintEventArgs) から得られる Graphics オブジェクトは、
Paint イベント ハンドラから戻った時点で破棄されます。
したがって、Paint イベントのスコープの外で、この Graphics オブジェクトを使用してはいけません。

16.テスト用ソースコード

2002/12/26 初版作成

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;

namespace TestGraphics1
{
    /// <summary>
    /// Form1 の概要の説明です。
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        private System.Windows.Forms.TabControl tabControl1;
        private System.Windows.Forms.TabPage tabHatchBrush;
        private System.Windows.Forms.PictureBox picBoxForHatchBrush;
        private System.Windows.Forms.PictureBox picBoxLine;
        private System.Windows.Forms.TabPage tabLineCap;
        private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.TabPage tabPageLineDash;
        private System.Windows.Forms.PictureBox pictureBox2;
        private System.Windows.Forms.TabPage tabPageTextureBrush;
        private System.Windows.Forms.PictureBox pictureBox3;
        private System.Windows.Forms.TabPage tabPageLinearBrush;
        private System.Windows.Forms.PictureBox pictureBox4;
        private System.Windows.Forms.TabPage tabPagePathGradBrush;
        private System.Windows.Forms.PictureBox pictureBox5;
        private System.Windows.Forms.TabPage tabLineJoin;
        private System.Windows.Forms.TabPage tabPageText;
        private System.Windows.Forms.PictureBox pictureBox6;
        private System.Windows.Forms.TabPage tabPageShape;
        private System.Windows.Forms.PictureBox pictureBox7;
        private System.Windows.Forms.TabPage tabPageTextBox;
        private System.Windows.Forms.PictureBox pictureBox8;
        private System.Windows.Forms.TabPage tabPageBitmap;
        private System.Windows.Forms.PictureBox pictureBox9;
        private System.Windows.Forms.TabPage tabPageSaveImage;
        private System.Windows.Forms.Button btnSaveImage;
        /// <summary>
        /// 必要なデザイナ変数です。
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Form1()
        {
            //
            // Windows フォーム デザイナ サポートに必要です。
            //
            InitializeComponent();

            //
            // TODO: InitializeComponent 呼び出しの後に、コンストラクタ コードを追加してください。
            //
            CreateStarPath(50, 50);
        }

        /// <summary>
        /// 使用されているリソースに後処理を実行します。
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

                #region Windows Form Designer generated code
        /// <summary>
        /// デザイナ サポートに必要なメソッドです。このメソッドの内容を
        /// コード エディタで変更しないでください。
        /// </summary>
        private void InitializeComponent()
        {
            this.picBoxForHatchBrush = new System.Windows.Forms.PictureBox();
            this.tabControl1 = new System.Windows.Forms.TabControl();
            this.tabPageShape = new System.Windows.Forms.TabPage();
            this.pictureBox7 = new System.Windows.Forms.PictureBox();
            this.tabPageLineDash = new System.Windows.Forms.TabPage();
            this.pictureBox2 = new System.Windows.Forms.PictureBox();
            this.tabLineJoin = new System.Windows.Forms.TabPage();
            this.picBoxLine = new System.Windows.Forms.PictureBox();
            this.tabLineCap = new System.Windows.Forms.TabPage();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.tabHatchBrush = new System.Windows.Forms.TabPage();
            this.tabPageTextureBrush = new System.Windows.Forms.TabPage();
            this.pictureBox3 = new System.Windows.Forms.PictureBox();
            this.tabPageLinearBrush = new System.Windows.Forms.TabPage();
            this.pictureBox4 = new System.Windows.Forms.PictureBox();
            this.tabPagePathGradBrush = new System.Windows.Forms.TabPage();
            this.pictureBox5 = new System.Windows.Forms.PictureBox();
            this.tabPageText = new System.Windows.Forms.TabPage();
            this.pictureBox6 = new System.Windows.Forms.PictureBox();
            this.tabPageTextBox = new System.Windows.Forms.TabPage();
            this.pictureBox8 = new System.Windows.Forms.PictureBox();
            this.tabPageBitmap = new System.Windows.Forms.TabPage();
            this.pictureBox9 = new System.Windows.Forms.PictureBox();
            this.tabPageSaveImage = new System.Windows.Forms.TabPage();
            this.btnSaveImage = new System.Windows.Forms.Button();
            this.tabControl1.SuspendLayout();
            this.tabPageShape.SuspendLayout();
            this.tabPageLineDash.SuspendLayout();
            this.tabLineJoin.SuspendLayout();
            this.tabLineCap.SuspendLayout();
            this.tabHatchBrush.SuspendLayout();
            this.tabPageTextureBrush.SuspendLayout();
            this.tabPageLinearBrush.SuspendLayout();
            this.tabPagePathGradBrush.SuspendLayout();
            this.tabPageText.SuspendLayout();
            this.tabPageTextBox.SuspendLayout();
            this.tabPageBitmap.SuspendLayout();
            this.tabPageSaveImage.SuspendLayout();
            this.SuspendLayout();
            // 
            // picBoxForHatchBrush
            // 
            this.picBoxForHatchBrush.Dock = System.Windows.Forms.DockStyle.Top;
            this.picBoxForHatchBrush.Name = "picBoxForHatchBrush";
            this.picBoxForHatchBrush.Size = new System.Drawing.Size(576, 152);
            this.picBoxForHatchBrush.TabIndex = 1;
            this.picBoxForHatchBrush.TabStop = false;
            this.picBoxForHatchBrush.Paint += new System.Windows.Forms.PaintEventHandler(this.picBoxHatch_Paint);
            // 
            // tabControl1
            // 
            this.tabControl1.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                      this.tabPageShape,
                                                                                      this.tabPageLineDash,
                                                                                      this.tabLineJoin,
                                                                                      this.tabLineCap,
                                                                                      this.tabHatchBrush,
                                                                                      this.tabPageTextureBrush,
                                                                                      this.tabPageLinearBrush,
                                                                                      this.tabPagePathGradBrush,
                                                                                      this.tabPageText,
                                                                                      this.tabPageTextBox,
                                                                                      this.tabPageBitmap,
                                                                                      this.tabPageSaveImage});
            this.tabControl1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.tabControl1.Multiline = true;
            this.tabControl1.Name = "tabControl1";
            this.tabControl1.SelectedIndex = 0;
            this.tabControl1.Size = new System.Drawing.Size(584, 382);
            this.tabControl1.TabIndex = 2;
            // 
            // tabPageShape
            // 
            this.tabPageShape.AutoScroll = true;
            this.tabPageShape.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                       this.pictureBox7});
            this.tabPageShape.Location = new System.Drawing.Point(4, 38);
            this.tabPageShape.Name = "tabPageShape";
            this.tabPageShape.Size = new System.Drawing.Size(576, 340);
            this.tabPageShape.TabIndex = 8;
            this.tabPageShape.Text = "Shape";
            // 
            // pictureBox7
            // 
            this.pictureBox7.Dock = System.Windows.Forms.DockStyle.Top;
            this.pictureBox7.Name = "pictureBox7";
            this.pictureBox7.Size = new System.Drawing.Size(576, 302);
            this.pictureBox7.TabIndex = 0;
            this.pictureBox7.TabStop = false;
            this.pictureBox7.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox7_Paint);
            // 
            // tabPageLineDash
            // 
            this.tabPageLineDash.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                          this.pictureBox2});
            this.tabPageLineDash.Location = new System.Drawing.Point(4, 21);
            this.tabPageLineDash.Name = "tabPageLineDash";
            this.tabPageLineDash.Size = new System.Drawing.Size(576, 357);
            this.tabPageLineDash.TabIndex = 3;
            this.tabPageLineDash.Text = "DashLine";
            // 
            // pictureBox2
            // 
            this.pictureBox2.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox2.Name = "pictureBox2";
            this.pictureBox2.Size = new System.Drawing.Size(576, 357);
            this.pictureBox2.TabIndex = 0;
            this.pictureBox2.TabStop = false;
            this.pictureBox2.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox2_Paint);
            // 
            // tabLineJoin
            // 
            this.tabLineJoin.AutoScroll = true;
            this.tabLineJoin.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                      this.picBoxLine});
            this.tabLineJoin.Location = new System.Drawing.Point(4, 21);
            this.tabLineJoin.Name = "tabLineJoin";
            this.tabLineJoin.Size = new System.Drawing.Size(576, 357);
            this.tabLineJoin.TabIndex = 0;
            this.tabLineJoin.Text = "LineJoin";
            // 
            // picBoxLine
            // 
            this.picBoxLine.Dock = System.Windows.Forms.DockStyle.Fill;
            this.picBoxLine.Name = "picBoxLine";
            this.picBoxLine.Size = new System.Drawing.Size(576, 357);
            this.picBoxLine.TabIndex = 0;
            this.picBoxLine.TabStop = false;
            this.picBoxLine.Paint += new System.Windows.Forms.PaintEventHandler(this.picBoxLine_Paint);
            // 
            // tabLineCap
            // 
            this.tabLineCap.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                     this.pictureBox1});
            this.tabLineCap.Location = new System.Drawing.Point(4, 21);
            this.tabLineCap.Name = "tabLineCap";
            this.tabLineCap.Size = new System.Drawing.Size(576, 357);
            this.tabLineCap.TabIndex = 2;
            this.tabLineCap.Text = "LineCap";
            // 
            // pictureBox1
            // 
            this.pictureBox1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(576, 357);
            this.pictureBox1.TabIndex = 0;
            this.pictureBox1.TabStop = false;
            this.pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint_1);
            // 
            // tabHatchBrush
            // 
            this.tabHatchBrush.AutoScroll = true;
            this.tabHatchBrush.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                        this.picBoxForHatchBrush});
            this.tabHatchBrush.Location = new System.Drawing.Point(4, 21);
            this.tabHatchBrush.Name = "tabHatchBrush";
            this.tabHatchBrush.Size = new System.Drawing.Size(576, 357);
            this.tabHatchBrush.TabIndex = 1;
            this.tabHatchBrush.Text = "HatchBrush";
            // 
            // tabPageTextureBrush
            // 
            this.tabPageTextureBrush.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                              this.pictureBox3});
            this.tabPageTextureBrush.Location = new System.Drawing.Point(4, 21);
            this.tabPageTextureBrush.Name = "tabPageTextureBrush";
            this.tabPageTextureBrush.Size = new System.Drawing.Size(576, 357);
            this.tabPageTextureBrush.TabIndex = 4;
            this.tabPageTextureBrush.Text = "TextureBrush";
            // 
            // pictureBox3
            // 
            this.pictureBox3.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox3.Name = "pictureBox3";
            this.pictureBox3.Size = new System.Drawing.Size(576, 357);
            this.pictureBox3.TabIndex = 0;
            this.pictureBox3.TabStop = false;
            this.pictureBox3.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox3_Paint);
            // 
            // tabPageLinearBrush
            // 
            this.tabPageLinearBrush.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                             this.pictureBox4});
            this.tabPageLinearBrush.Location = new System.Drawing.Point(4, 21);
            this.tabPageLinearBrush.Name = "tabPageLinearBrush";
            this.tabPageLinearBrush.Size = new System.Drawing.Size(576, 357);
            this.tabPageLinearBrush.TabIndex = 5;
            this.tabPageLinearBrush.Text = "LinearBrush";
            // 
            // pictureBox4
            // 
            this.pictureBox4.Name = "pictureBox4";
            this.pictureBox4.Size = new System.Drawing.Size(536, 319);
            this.pictureBox4.TabIndex = 0;
            this.pictureBox4.TabStop = false;
            this.pictureBox4.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox4_Paint);
            // 
            // tabPagePathGradBrush
            // 
            this.tabPagePathGradBrush.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                               this.pictureBox5});
            this.tabPagePathGradBrush.Location = new System.Drawing.Point(4, 21);
            this.tabPagePathGradBrush.Name = "tabPagePathGradBrush";
            this.tabPagePathGradBrush.Size = new System.Drawing.Size(576, 357);
            this.tabPagePathGradBrush.TabIndex = 6;
            this.tabPagePathGradBrush.Text = "PathGradBrush";
            // 
            // pictureBox5
            // 
            this.pictureBox5.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox5.Name = "pictureBox5";
            this.pictureBox5.Size = new System.Drawing.Size(576, 357);
            this.pictureBox5.TabIndex = 0;
            this.pictureBox5.TabStop = false;
            this.pictureBox5.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox5_Paint);
            // 
            // tabPageText
            // 
            this.tabPageText.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                      this.pictureBox6});
            this.tabPageText.Location = new System.Drawing.Point(4, 21);
            this.tabPageText.Name = "tabPageText";
            this.tabPageText.Size = new System.Drawing.Size(576, 357);
            this.tabPageText.TabIndex = 7;
            this.tabPageText.Text = "Text";
            // 
            // pictureBox6
            // 
            this.pictureBox6.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox6.Name = "pictureBox6";
            this.pictureBox6.Size = new System.Drawing.Size(576, 357);
            this.pictureBox6.TabIndex = 0;
            this.pictureBox6.TabStop = false;
            this.pictureBox6.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox6_Paint);
            // 
            // tabPageTextBox
            // 
            this.tabPageTextBox.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                         this.pictureBox8});
            this.tabPageTextBox.Location = new System.Drawing.Point(4, 38);
            this.tabPageTextBox.Name = "tabPageTextBox";
            this.tabPageTextBox.Size = new System.Drawing.Size(576, 340);
            this.tabPageTextBox.TabIndex = 9;
            this.tabPageTextBox.Text = "Text2";
            // 
            // pictureBox8
            // 
            this.pictureBox8.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.pictureBox8.Location = new System.Drawing.Point(32, 40);
            this.pictureBox8.Name = "pictureBox8";
            this.pictureBox8.Size = new System.Drawing.Size(264, 184);
            this.pictureBox8.TabIndex = 0;
            this.pictureBox8.TabStop = false;
            this.pictureBox8.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox8_Paint);
            // 
            // tabPageBitmap
            // 
            this.tabPageBitmap.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                        this.pictureBox9});
            this.tabPageBitmap.Location = new System.Drawing.Point(4, 38);
            this.tabPageBitmap.Name = "tabPageBitmap";
            this.tabPageBitmap.Size = new System.Drawing.Size(576, 340);
            this.tabPageBitmap.TabIndex = 10;
            this.tabPageBitmap.Text = "Bitmap";
            // 
            // pictureBox9
            // 
            this.pictureBox9.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox9.Name = "pictureBox9";
            this.pictureBox9.Size = new System.Drawing.Size(576, 340);
            this.pictureBox9.TabIndex = 0;
            this.pictureBox9.TabStop = false;
            this.pictureBox9.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox9_Paint);
            // 
            // tabPageSaveImage
            // 
            this.tabPageSaveImage.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                           this.btnSaveImage});
            this.tabPageSaveImage.Location = new System.Drawing.Point(4, 38);
            this.tabPageSaveImage.Name = "tabPageSaveImage";
            this.tabPageSaveImage.Size = new System.Drawing.Size(576, 340);
            this.tabPageSaveImage.TabIndex = 11;
            this.tabPageSaveImage.Text = "SaveImage";
            // 
            // btnSaveImage
            // 
            this.btnSaveImage.Location = new System.Drawing.Point(72, 56);
            this.btnSaveImage.Name = "btnSaveImage";
            this.btnSaveImage.Size = new System.Drawing.Size(104, 32);
            this.btnSaveImage.TabIndex = 0;
            this.btnSaveImage.Text = "SaveImage";
            this.btnSaveImage.Click += new System.EventHandler(this.btnSaveImage_Click);
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 12);
            this.ClientSize = new System.Drawing.Size(584, 382);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.tabControl1});
            this.Name = "Form1";
            this.Text = "TestGraphics";
            this.tabControl1.ResumeLayout(false);
            this.tabPageShape.ResumeLayout(false);
            this.tabPageLineDash.ResumeLayout(false);
            this.tabLineJoin.ResumeLayout(false);
            this.tabLineCap.ResumeLayout(false);
            this.tabHatchBrush.ResumeLayout(false);
            this.tabPageTextureBrush.ResumeLayout(false);
            this.tabPageLinearBrush.ResumeLayout(false);
            this.tabPagePathGradBrush.ResumeLayout(false);
            this.tabPageText.ResumeLayout(false);
            this.tabPageTextBox.ResumeLayout(false);
            this.tabPageBitmap.ResumeLayout(false);
            this.tabPageSaveImage.ResumeLayout(false);
            this.ResumeLayout(false);

        }
                #endregion

        /// <summary>
        /// アプリケーションのメイン エントリ ポイントです。
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new Form1());
        }

        private PointF[] starPoints = null;
        private GraphicsPath starPath = null;
        
        private void CreateStarPath(int w, int h)
        {
            int r = System.Math.Min(w, h)/2;

            Point [] stars = new Point[] {
                            new Point((int)(r*Math.Sin(Math.PI*2*0.0)), (int)(r*-Math.Cos(Math.PI*2*0))),
                            new Point((int)(r*Math.Sin(Math.PI*2*2/5)), (int)(r*-Math.Cos(Math.PI*2*2/5))),
                            new Point((int)(r*Math.Sin(Math.PI*2*4/5)), (int)(r*-Math.Cos(Math.PI*2*4/5))),
                            new Point((int)(r*Math.Sin(Math.PI*2*1/5)), (int)(r*-Math.Cos(Math.PI*2*1/5))),
                            new Point((int)(r*Math.Sin(Math.PI*2*3/5)), (int)(r*-Math.Cos(Math.PI*2*3/5))),
                            new Point((int)(r*Math.Sin(Math.PI*2*0.0)), (int)(r*-Math.Cos(Math.PI*2*0)))
            };

            starPath = new GraphicsPath();
            starPath.AddLines(stars);

            starPath.Transform(new System.Drawing.Drawing2D.Matrix(1,0,0,1,r,r));
            starPoints = starPath.PathPoints;
        }

        // col, row で、カラム、行を指定して、座標系を移動するためのメソッド
        static private GraphicsState gstate = null;
        private void MoveTo(Graphics g, int col, int row, string comment)
        { 
            if(gstate != null)
                g.Restore(gstate);
            gstate = g.Save();
            g.TranslateTransform(col * 250, row * 60 + 10, MatrixOrder.Append);
            g.DrawString(comment, this.Font, new SolidBrush(Color.Black), 10, 10);
            g.TranslateTransform(150, 0, MatrixOrder.Append);
        }
        
        private void EndMoveTo(Graphics g)
        {
            if(gstate != null)
            {
                g.Restore(gstate);
                gstate = null;
            }
        }

        // Shape 
        private void pictureBox7_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            this.pictureBox7.Height = 1024;
            Graphics g = e.Graphics;

            MoveTo(g, 0, 0, "Line");
            g.DrawLine(new Pen(Color.Blue), new Point(0, 0), new Point(100, 0));
            g.DrawLine(new Pen(Color.Blue, 2.0F), new Point(0, 10), new Point(100, 10));
            g.DrawLine(new Pen(Color.Blue, 3.0F), new Point(0, 20), new Point(100, 20));
                      
            MoveTo(g, 0, 1, "DrawArc");
            g.DrawArc(new Pen(Color.Blue), 0, 0, 50, 50, 0, 300);

            MoveTo(g, 0, 2, "DrawBezier");
            g.DrawBezier(new Pen(Color.Blue), 
                new Point(0, 0), new Point(50, 50), new Point(100, 20), new Point(150, 40));
                        
            MoveTo(g, 0, 3, "DrawClosedCurve");
            Point [] curPoints = {new Point(0, 0), new Point(20, 50), new Point(50, 0), new Point(80, 30)};
            Point [] points = {new Point(0, 0), new Point(20, 20), new Point(50, 0), new Point(70, 30),
                                  new Point(80, 10), new Point(80, 40), new Point(40, 20), new Point(10, 40)};
            g.DrawClosedCurve(new Pen(Color.Blue), curPoints, 1.0F, FillMode.Alternate);

            MoveTo(g, 0, 4, "DrawCurve");
            g.DrawCurve(new Pen(Color.Blue), curPoints, 1.0F);

            MoveTo(g, 0, 5, "DrawEllipse");
            g.DrawEllipse(new Pen(Color.Blue), 0, 0, 100, 50);
            
            MoveTo(g, 0, 6, "DrawPath");
            g.DrawPath(new Pen(Color.Blue), this.starPath);

            MoveTo(g, 0, 7, "DrawPie");
            g.DrawPie(new Pen(Color.Blue), 0, 0, 50, 50, 0, 75);

            MoveTo(g, 0, 8, "DrawPolygon");
            g.DrawPolygon(new Pen(Color.Blue), points);

            MoveTo(g, 0, 9, "DrawRectangle");
            g.DrawRectangle(new Pen(Color.Blue), 0, 0, 100, 50);

            Image texture = new Bitmap(@"..\..\marble.gif");
            Brush textureBrush = new TextureBrush(texture);


            MoveTo(g, 1, 3, "FillClosedCurve");            
            g.FillClosedCurve(textureBrush, curPoints, FillMode.Alternate, 1.0F);
            
            MoveTo(g, 1, 5, "FillEllipse");           
            g.FillEllipse(textureBrush, 0, 0, 100, 50);
            
            MoveTo(g, 1, 6, "FillPath");           
            g.FillPath(textureBrush, this.starPath);

            MoveTo(g, 1, 7, "FillPie");  
            g.FillPie(textureBrush, 0, 0, 50, 50, 0, 75);

            MoveTo(g, 1, 8, "FillPolygon Alternate");  
            g.FillPolygon(textureBrush, starPoints, FillMode.Alternate);

            MoveTo(g, 2, 8, "FillPolygon Winding");  
            g.FillPolygon(textureBrush, starPoints, FillMode.Winding);

            MoveTo(g, 1, 9, "FillRectangle");  
            g.FillRectangle(textureBrush, 0, 0, 100, 50);

            MoveTo(g, 1, 10, "FillRegion"); 
            this.starPath.FillMode = FillMode.Alternate;
            g.FillRegion(textureBrush, new Region(this.starPath));

            MoveTo(g, 2, 10, "FillRegion Winding");
            this.starPath.FillMode = FillMode.Winding;
            g.FillRegion(textureBrush, new Region(this.starPath));

            EndMoveTo(g);
        }

        // ダッシュライン
        private void pictureBox2_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;

            Point [] points = {new Point(100, 10), new Point(0, 10), new Point(100, 30)};
            Pen pen = new Pen(Color.Blue, 2.0F);
            
            this.MoveTo(g, 0, 0, "Dash");
            pen.DashStyle = DashStyle.Dash;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 1, "DashDot");
            pen.DashStyle = DashStyle.DashDot;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 2, "DashDotDot");
            pen.DashStyle = DashStyle.DashDotDot;
            g.DrawLines(pen, points);
        
            this.MoveTo(g, 0, 3, "Dot");
            pen.DashStyle = DashStyle.Dot;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 4, "Solid");
            pen.DashStyle = DashStyle.Solid;
            g.DrawLines(pen, points);

            EndMoveTo(g);
        }

        // ラインジョイン
        private void picBoxLine_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;

            Point [] points = {new Point(100, 20), new Point(50, 20), new Point(100, 40)};
            Pen pen = new Pen(Color.Blue, 15.0F);
            
            this.MoveTo(g, 0, 0, "Default");
            g.DrawLines(pen, points);
            
            this.MoveTo(g, 0, 1, "LineJoin.Bevel");
            pen.LineJoin = LineJoin.Bevel;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 2, "LineJoin.Miter");
            pen.LineJoin = LineJoin.Miter;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 3, "MiterClipped: 5");
            pen.LineJoin = LineJoin.MiterClipped;
            pen.MiterLimit = 5;
            g.DrawLines(pen, points);

            this.MoveTo(g, 1, 3, "MiterClipped: 15");
            pen.LineJoin = LineJoin.MiterClipped;
            pen.MiterLimit = 15;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 4, "LineJoin.Round");
            pen.LineJoin = LineJoin.Round;
            g.DrawLines(pen, points);
            
            EndMoveTo(g);
        }

        // ラインキャップ
        private void pictureBox1_Paint_1(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;

            Point [] points = {new Point(0, 10), new Point(50, 10), new Point(0, 30)};
            Pen pen = new Pen(Color.Blue, 10.0F);
            
            this.MoveTo(g, 0, 0, "LineCap.AnchorMask");
            pen.StartCap = pen.EndCap = LineCap.AnchorMask;
            g.DrawLines(pen, points);

            this.MoveTo(g, 1, 0, "LineCap.ArrowAnchor");
            pen.StartCap = pen.EndCap = LineCap.ArrowAnchor;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 1, "LineCap.DiamondAnchor");
            pen.StartCap = pen.EndCap = LineCap.DiamondAnchor;
            g.DrawLines(pen, points);

            this.MoveTo(g, 1, 1, "LineCap.Flat");
            pen.StartCap = pen.EndCap = LineCap.Flat;
            g.DrawLines(pen, points);

            this.MoveTo(g, 0, 2, "LineCap.NoAnchor");
            pen.StartCap = pen.EndCap = LineCap.NoAnchor;
            g.DrawLines(pen, points);
            
            this.MoveTo(g, 1, 2, "LineCap.Round");
            pen.StartCap = pen.EndCap = LineCap.Round;
            g.DrawLines(pen, points);
            
            this.MoveTo(g, 0, 3, "LineCap.RoundAnchor");
            pen.StartCap = pen.EndCap = LineCap.RoundAnchor;
            g.DrawLines(pen, points);
            
            this.MoveTo(g, 1, 3, "LineCap.Square");
            pen.StartCap = pen.EndCap = LineCap.Square;
            g.DrawLines(pen, points);
            
            this.MoveTo(g, 0, 4, "LineCap.SquareAnchor");
            pen.StartCap = pen.EndCap = LineCap.SquareAnchor;
            g.DrawLines(pen, points);
            
            this.MoveTo(g, 1, 4, "LineCap.Triangle");
            pen.StartCap = pen.EndCap = LineCap.Triangle;
            g.DrawLines(pen, points);
            
            EndMoveTo(g);
        }

        // ハッチブラシ
        private void picBoxHatch_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            this.picBoxForHatchBrush.Width = this.tabHatchBrush.ClientSize.Width;
            Graphics g = e.Graphics;
            int x = 0; 
            int y = 10;
            string [] hatchStyleNames = Enum.GetNames(typeof(HatchStyle));

            foreach(string hatchStyleStr in hatchStyleNames)
            {
                HatchStyle hatchStyle = (HatchStyle)Enum.Parse(typeof(HatchStyle), hatchStyleStr);
                HatchBrush hb = new HatchBrush(hatchStyle, Color.Blue,
                    Color.FromArgb(100, Color.Cyan));
                g.DrawString(hatchStyle.ToString(), this.Font, new SolidBrush(Color.Black), x + 10, y);
                g.FillEllipse(hb, x + 10, y + 10, 100, 20);
                x += 150;
                if ( x + 100 >= this.picBoxForHatchBrush.Width) 
                {
                    x = 0;
                    y += 40;
                }
            }
            this.picBoxForHatchBrush.Height = y + 50;
        }

        // テクスチャブラシ
        private void pictureBox3_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;

            this.MoveTo(g, 0, 0, "TextureBrush");
            Image texture = new Bitmap(@"..\..\texture.gif");
            Brush textureBrush = new TextureBrush(texture);
            g.FillRectangle(textureBrush, 0, 0, 100, 50);
            
            MoveTo(g, 1, 0, "TextureBrush");
            Image marble = new Bitmap(@"..\..\marble.gif");
            Brush marbleBrush = new TextureBrush(marble);
            g.FillEllipse(marbleBrush, 0, 0, 100, 50);

            this.EndMoveTo(g);
        }

        // リニアグラデーション
        private void pictureBox4_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {   
            Graphics g = e.Graphics;
            Rectangle r = new Rectangle(0, 20, 100, 40);

            this.MoveTo(g, 0, 0, "LinearGradientMode.BackwardDiagonal");
            LinearGradientBrush lbBD = new LinearGradientBrush(r, Color.Magenta, Color.Blue,
                LinearGradientMode.BackwardDiagonal);
            g.FillRectangle(lbBD, r);

            this.MoveTo(g, 0, 1, "LinearGradientMode.ForwardDiagonal");
            LinearGradientBrush lbFD = new LinearGradientBrush(r, Color.Magenta, Color.Blue,
                LinearGradientMode.ForwardDiagonal);
            g.FillRectangle(lbFD, r);

            this.MoveTo(g, 0, 2, "LinearGradientMode.Horizontal");
            LinearGradientBrush lbH = new LinearGradientBrush(r, Color.Magenta, Color.Blue,
                LinearGradientMode.Horizontal);
            g.FillRectangle(lbH, r);

            this.MoveTo(g, 0, 3, "LinearGradientMode.Vertical");
            LinearGradientBrush lbV = new LinearGradientBrush(r, Color.Magenta, Color.Blue,
                LinearGradientMode.Vertical);
            g.FillRectangle(lbV, r);
            
            EndMoveTo(g);
        }

       // パスグラデーションブラシ
        private void pictureBox5_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
            g.FillRectangle(new SolidBrush(Color.FromArgb(180, Color.White)), ClientRectangle);

            this.MoveTo(g, 0, 0, "PathGradientBrush");
            GraphicsPath path = new GraphicsPath();
            path.AddLines(new Point[] {new Point(0, 0), new Point(100, 0), new Point(100, 40), new Point(0, 40)} );

            PathGradientBrush pgRect = new PathGradientBrush(path);
            pgRect.SurroundColors = new Color[] {
                                                     Color.Magenta,
                                                     Color.Yellow,
                                                     Color.Red,
                                                     Color.Blue,
            };
            g.FillPath(pgRect, path);

            this.CreateStarPath(50, 50);

            this.MoveTo(g, 0, 1, "PathGradientBrush : Alternate");
            PathGradientBrush pgStar = new PathGradientBrush(this.starPath);
            pgStar.SurroundColors = new Color[] {
                                                     Color.Green,
                                                     Color.Yellow,
                                                     Color.Red,
                                                     Color.Blue,
                                                     Color.Orange,
                                                     Color.White,
            };

            g.FillPath(pgStar, this.starPath);

            this.MoveTo(g, 1, 1, "PathGradientBrush : Winding");
            this.starPath.FillMode = FillMode.Winding;
            pgStar = new PathGradientBrush(this.starPath);
            pgStar.SurroundColors = new Color[] {
                                                    Color.Green,
                                                    Color.Yellow,
                                                    Color.Red,
                                                    Color.Blue,
                                                    Color.Orange,
                                                    Color.White,
            };

            g.FillPath(pgStar, this.starPath);
        }

        // テキスト
        private void pictureBox6_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;

            this.MoveTo(g, 0, 0, "Default Font");
            g.DrawString("Default Font", this.Font, new SolidBrush(Color.Black), 0, 0);

            this.MoveTo(g, 0, 1, "Large Font");
            g.DrawString("Large Font", new Font("New Times Roman", 20.0F), new SolidBrush(Color.Black), 0, 0);

            this.MoveTo(g, 0, 2, "Texture Font");
            TextureBrush textureBrush = new TextureBrush(new Bitmap(@"..\..\marble.gif"));
            g.DrawString("Texture", new Font("Impact", 40.0F), textureBrush, 0, 0);

            this.MoveTo(g, 0, 3, "Shadow Font");
            g.DrawString("Shadow", new Font("Impact", 40.0F), new SolidBrush(Color.Black), 5, 5);
            g.DrawString("Shadow", new Font("Impact", 40.0F), textureBrush, 0, 0);

            
            this.MoveTo(g, 0, 4, "Transparent Font");
            g.RotateTransform(-30.0F, MatrixOrder.Append);
            Color transparentRed = Color.FromArgb(100, Color.Blue);
            g.DrawString("Uchukamen", new Font("Impact", 40.0F), new SolidBrush(transparentRed), -100, 0);

            this.EndMoveTo(g);
        }

        // テキスト(その2)
        private void pictureBox8_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;

            Font font = new Font("MS Pゴシック", 12);
            StringFormat format = new StringFormat();
            format.Alignment=StringAlignment.Center;
            string str ="C# プログラミング。"
                + "DrawString に Rectangle を指定すると、テキストはその四角形に収まるように折り返す。\n"
                + "StringFormat を使用すると文字列の左寄せ、中央寄せ、右寄せを指定できます。\n";
            g.DrawString(str, font, new SolidBrush(Color.Blue), this.pictureBox8.ClientRectangle, format);

        }

        // ビットマップ
        private void pictureBox9_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            g.DrawImage(new Bitmap(@"..\..\Shuttle.jpg"), this.pictureBox9.ClientRectangle);
        }

        private void btnSaveImage_Click(object sender, System.EventArgs e)
        {
            Bitmap bmp = new Bitmap(200,200, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
            Graphics g = Graphics.FromImage(bmp);
            g.FillEllipse(new SolidBrush(Color.Blue), 0, 0, 100, 50);
            g.DrawString("Hello World", this.Font, new SolidBrush(Color.Yellow), 10, 10);
            bmp.Save("test.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
         }
    }
}