跪求印章解决方案

http://blog.csdn.net/johnsuna/article/details/7915588 可以参考一下这个。另外，以下这些代码或许有用：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Text;namespace 电子印章
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private Font myFont;
        private int roll;
        private int textWide;
        private int sealSize;
        private int textSpace;
        private int pictureSize;
        bool isPictureCheck;
        Brush myBrush;
        Color myColor;
        string text1;
        string text2;
        string text3;
        int textHigh;
        int textSize1;
        int textSize2;
        int textHigh1;
        int textHigh2;
        int textWidth1;
        int textWidth2;
        int lineWidth;
        Pen myPen;        void DrawSealText(Graphics g , Brush myBrush)
        {
            int nChinese = this.textBox1.Text.Length;
            String myText = this.textBox1.Text;
            String[] chinese = new string[50];
            int i;
    //将单个字保存在数组中
        for(i = 0; i < nChinese; i ++)
        {
                chinese[i] = myText.Substring(i , 1);
        }
            //定义字体大小
            SizeF sf = g.MeasureString(chinese[0], myFont);
            RectangleF rectF = new RectangleF(0, 0, sf.Width, sf.Height);
            //定义字中心到圆心的半径
            float r = this.panel1.Width  * this.sealSize / 200 - this.roll;
            //定义字的位置
            float xTemp,yTemp;
            //定义字旋转角度
            float angle;

            //圆心
            Point cPoint = new Point();
        cPoint.X = cPoint.Y = this.panel1.Width/2;

        //显示签章单位
            //字体居中
            // Set format of string.
            StringFormat drawFormat = new StringFormat();
            //drawFormat.Trimming = StringTrimming.EllipsisCharacter;
            drawFormat.Alignment = StringAlignment.Center;

            //g.TranslateTransform(point.X, point.Y);//设置新的坐标原点
            //g.RotateTransform(-50);//旋转270度
            //g.DrawString(myText, myFont, myBrush, rectF, drawFormat);//以新的原点画文本
            //g.ResetTransform();//还原坐点原点
            this.myFont = new Font(this.fontComboBox.Text, this.textWide);
            //字数为偶数时
            if (nChinese % 2 == 0)
            {
                //显示左半边字
                for (i = 0; i < nChinese / 2; i++)
                {
                    angle = (float)((nChinese / 2 - i - 1.0 / 2) * this.textSpace);
                    sf = g.MeasureString(chinese[i], myFont);
                    rectF = new RectangleF(0, 0, sf.Width, sf.Height);
                    xTemp = (float)(cPoint.X - r * Math.Sin(angle * Math.PI / 180) - sf.Width / 2 * Math.Cos(angle * Math.PI / 180));
                    yTemp = (float)(cPoint.Y - r * Math.Cos(angle * Math.PI / 180) + sf.Height / 2 * Math.Sin(angle * Math.PI / 180));
                    g.TranslateTransform(xTemp, yTemp);//设置新的坐标原点
                    g.RotateTransform(-angle);//旋转
                    g.DrawString(chinese[i], myFont, myBrush, rectF, drawFormat);//以新的原点画文本
                    g.ResetTransform();//还原坐点原点
                }                //显示右半边字
                for (; i < nChinese; i++)
                {
                    angle = (float)((i - nChinese / 2 + 1.0 / 2) * this.textSpace);
                    xTemp = (float)(cPoint.X + r * Math.Sin(angle * Math.PI / 180) - sf.Width / 2 * Math.Cos(angle * Math.PI / 180));
                    yTemp = (float)(cPoint.Y - r * Math.Cos(angle * Math.PI / 180) - sf.Height / 2 * Math.Sin(angle * Math.PI / 180));
                    sf = g.MeasureString(chinese[i], myFont);
                    rectF = new RectangleF(0, 0, sf.Width, sf.Height);
                    g.TranslateTransform(xTemp, yTemp);//设置新的坐标原点
                    g.RotateTransform(angle);//旋转
                    g.DrawString(chinese[i], myFont, myBrush, rectF, drawFormat);//以新的原点画文本
                    g.ResetTransform();//还原坐点原点
                }
            }
            //字数为奇数时
            else
            {
                //显示左半边字和中间字
                for (i = 0; i < (nChinese + 1) / 2; i++)
                {
                    angle = (float)(((nChinese - 1) / 2 - i) * this.textSpace);
                    sf = g.MeasureString(chinese[i], myFont);
                    rectF = new RectangleF(0, 0, sf.Width, sf.Height);
                    xTemp = (float)(cPoint.X - r * Math.Sin(angle * Math.PI / 180) - sf.Width / 2 * Math.Cos(angle * Math.PI / 180));
                    yTemp = (float)(cPoint.Y - r * Math.Cos(angle * Math.PI / 180) + sf.Height / 2 * Math.Sin(angle * Math.PI / 180));
                    g.TranslateTransform(xTemp, yTemp);//设置新的坐标原点
                    g.RotateTransform(-angle);//旋转
                    g.DrawString(chinese[i], myFont, myBrush, rectF, drawFormat);//以新的原点画文本
                    g.ResetTransform();//还原坐点原点
                }
                //显示右半边字
                for (; i < nChinese; i++)
                {
                    angle = (float)((i - (nChinese - 1) / 2) * this.textSpace);
                    xTemp = (float)(cPoint.X + r * Math.Sin(angle * Math.PI / 180) - sf.Width / 2 * Math.Cos(angle * Math.PI / 180));
                    yTemp = (float)(cPoint.Y - r * Math.Cos(angle * Math.PI / 180) - sf.Height / 2 * Math.Sin(angle * Math.PI / 180));
                    sf = g.MeasureString(chinese[i], myFont);
                    rectF = new RectangleF(0, 0, sf.Width, sf.Height);
                    g.TranslateTransform(xTemp, yTemp);//设置新的坐标原点
                    g.RotateTransform(angle);//旋转
                    g.DrawString(chinese[i], myFont, myBrush, rectF, drawFormat);//以新的原点画文本
                    g.ResetTransform();//还原坐点原点
                }
            }            //定义字体大小            if (!(text2 == null || text2.Length == 0))
            {
                Font font1 = new Font(this.fontComboBox.Text,this.textSize1);
                SizeF sf1 = g.MeasureString(text2, font1);
                g.DrawString(text2, font1, myBrush, cPoint.X - sf1.Width / 2, cPoint.Y + this.textHigh1);
            }
            if (!(text3 == null || text3.Length == 0))
            {
                Font font2 = new Font(this.fontComboBox.Text, this.textSize2);
                SizeF sf2 = g.MeasureString(text3, font2);
                g.DrawString(text3, font2, myBrush, cPoint.X - sf2.Width / 2, cPoint.Y + this.textHigh2);
            }
        }        Color GetMyColor()
        {
            if (this.red.Checked)
                return Color.Red;
            else if (this.blue.Checked)
                return Color.Blue;
            else
                return Color.Purple;
        }        Brush GetMyBrush()
        {
            if (this.red.Checked)
                return Brushes.Red;
            else if (this.blue.Checked)
                return Brushes.Blue;
            else
                return Brushes.Purple;
        }        private void DrawCircle(Graphics g)
        {
            this.myPen = new Pen(myColor, this.lineWidth); //创建一个自定义画笔对象
            int centre_X = this.panel1.Width / 2;
            int centre_Y = this.panel1.Height / 2;            //给印章定位
            int myRect_X = centre_X - this.panel1.Width * this.sealSize / 200;
            int myRect_Y = centre_Y - this.panel1.Height * this.sealSize / 200;
            int myRect_Width;
            int myRect_Height;
            if (this.panel1.Height < this.panel1.Width)
            {
                myRect_Width = this.panel1.Height * this.sealSize / 100;
                myRect_Height = this.panel1.Height * this.sealSize / 100;
            }
            else
            {
                myRect_Width = this.panel1.Width * this.sealSize / 100;
                myRect_Height = this.panel1.Width * this.sealSize / 100;
            }            Rectangle rect = new Rectangle(myRect_X, myRect_Y, myRect_Width, myRect_Height);
            //            Rectangle rect = new Rectangle(4,4,150,150);
            g.DrawEllipse(myPen, rect); //画出一个内切于矩形rect的圆
        }
        private void DrawPicture(Graphics g)
        {
            Point[] pPoints = new Point[10];
            //圆心
            Point cPoint = new Point();
            cPoint.X = cPoint.Y = this.panel1.Width / 2;
            int i;
            for (i = 0; i < 5; i++)
            {
                pPoints[i * 2].X = (int)(cPoint.X + this.pictureSize * Math.Sin(72.0 * i * Math.PI / 180));
                pPoints[i * 2].Y = (int)(cPoint.Y - this.pictureSize * Math.Cos(72.0 * i * Math.PI / 180));
                pPoints[i * 2 + 1].X = (int)(cPoint.X + this.pictureSize * 0.4 * Math.Sin((36 + 72.0 * i) * Math.PI / 180));
                pPoints[i * 2 + 1].Y = (int)(cPoint.Y - this.pictureSize * 0.4 * Math.Cos((36 + 72.0 * i) * Math.PI / 180));
            }
            //pPoints[10].X = pPoints[0].X;
            //pPoints[10].Y = pPoints[0].Y;
            g.FillPolygon(myBrush, pPoints);
        }（未完，后续）
（续前）
        private void Drawing()
        {
            Graphics g = this.panel1.CreateGraphics(); //创建一个Graphics对象            Color myColor = GetMyColor();
            this.roll = Convert.ToInt16(this.rollDomainUpDown.Text);
            this.textWide = Convert.ToInt16(this.textWideDomainUpDown.SelectedItem.ToString());
            this.sealSize = Convert.ToInt16(this.sizeDomainUpDown.Text);
            this.textSpace = Convert.ToInt16(this.spaceDomainUpDown.Text);
            this.pictureSize = Convert.ToInt16(this.pictureSizeDomainUpDown.Text);
            this.isPictureCheck = this.pictureCheckBox.Checked;
            this.myBrush = GetMyBrush();
            this.myColor = GetMyColor();
            this.text1 = this.textBox1.Text;
            this.text2 = this.textBox2.Text;
            this.text3 = this.textBox3.Text;
            this.textSize1 = Convert.ToInt16(this.textSizeDomainUpDown1.Text);
            this.textSize2 = Convert.ToInt16(this.textSizeDomainUpDown2.Text);
            this.textHigh1 = Convert.ToInt16(this.textHighDomainUpDown1.Text);
            this.textHigh2 = Convert.ToInt16(this.textHighDomainUpDown2.Text);
            this.lineWidth = Convert.ToInt16(this.lineWidthDomainUpDown.Text);
            this.myFont = new Font(this.fontComboBox.Text, this.textWide);            this.DrawCircle(g);
            if (this.isPictureCheck)
            {
                this.DrawPicture(g);
            }
            DrawSealText(g, GetMyBrush());
        }        private void Form1_Load(object sender, EventArgs e)
        {
            //增加系统字体
            InstalledFontCollection Font = new InstalledFontCollection();     // 建立InstalledFontCollection类型把系统字体载入到FONT中
            FontFamily[] fontfamily = Font.Families;  //得到FontFamily的对象矩阵
            int coute = fontfamily.Length;
            //将所有字体+入到控件中
            for (int j = 0; j < coute; j++)
            {
                string familyname = fontfamily[j].Name;
                this.fontComboBox.Items.Add(familyname);
            }
            this.fontComboBox.Text = "宋体";
            //印章初始化        }        private void closeButton_Click(object sender, EventArgs e)
        {
            Form1.ActiveForm.Close();
        }
        private void saveButton_Click(object sender, EventArgs e)
        {
            this.Refresh();
            Drawing();              //创建显示器DC
            IntPtr dc1 = CreateDC("DISPLAY", null, null, (IntPtr)null);
            //创建Graphics对象
            Graphics g1 = Graphics.FromHdc(dc1);
            //创建panel1大小的Bitmap对象
            Bitmap img = new Bitmap(panel1.ClientSize.Width, panel1.ClientSize.Height, g1);
            Graphics g2 = Graphics.FromImage(img);
            //获得位图的句柄
            IntPtr dc3 = g1.GetHdc();
            IntPtr dc2 = g2.GetHdc();
            //将panel坐标转成屏幕坐标
            Point pos = panel1.PointToScreen(panel1.Location);
            pos.X -= panel1.Location.X;
            pos.Y -= panel1.Location.Y;
            //把当前屏幕捕获到位图对象中
            BitBlt(dc2, 0, 0, panel1.ClientSize.Width, panel1.ClientSize.Height, dc3, pos.X, pos.Y, 13369376);
            //释放屏幕句柄
            g1.ReleaseHdc(dc3);
            //释放位图句柄
            g2.ReleaseHdc(dc2);
            SaveFileDialog saveFileDialog1 = new SaveFileDialog();
            saveFileDialog1.InitialDirectory = "C:\\Documents and Settings\\Administrator\\My Documents\\My Pictures";
            saveFileDialog1.Filter = "Bitmap Image|*.bmp";
            saveFileDialog1.Title = "保存图像";
            saveFileDialog1.FileName = "*.bmp";
            saveFileDialog1.ShowDialog();             img.Save(saveFileDialog1.FileName, System.Drawing.Imaging.ImageFormat.Jpeg);
        }        [System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")]
        private static extern IntPtr CreateDC(
        string lpszDriver,
        string lpszDevice,
        string lpszOutput,
        IntPtr lpInitData
        );
        [System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")]
        private static extern bool BitBlt(
        IntPtr hdcDest,
        int nXDest,
        int nYDest,
        int nWidth,
        int nHeight,
        IntPtr hdcSrc,
        int nXSrc,
        int nYSrc,
        System.Int32 dwRop
        );

        private void SealChange(object sender, EventArgs e)
        {
            this.Refresh();
            Drawing();
        }        private void SealTextChange(object sender, EventArgs e)
        {
            if (this.textBox1.Text.Length > 20)
            {
                this.textBox1.Text = this.textBox1.Text.Substring(0, 20);
                this.textBox1.Select(20, 0);
            }
            this.Refresh();
            Drawing();
        }        private void PictureChanged(object sender, EventArgs e)
        {
            this.isPictureCheck = this.pictureCheckBox.Checked;
            this.pictureSizeDomainUpDown.Enabled = this.pictureCheckBox.Checked;
            this.SealChange(sender,e);
        }        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            this.Refresh();
            Drawing();
        }
    }
}几年前自己写过一个更强大的印章，比上面这个更方便些，但暂时找不到源码了。

调试易

跪求印章解决方案

解决方案 »