public static byte[] CreateImage(string randomcode)
{
int maxValue = 30;
Bitmap bitmap = new Bitmap(randomcode.Length * 30, 32);
Graphics graphics = Graphics.FromImage((Image)bitmap);
graphics.SmoothingMode = SmoothingMode.HighQuality;
byte[] numArray;
try
{
graphics.Clear(Color.Transparent);
int index1 = CheckCode.rand.Next(2);
Brush brush = (Brush) new SolidBrush(CheckCode.c[index1]);
for (int index2 = 0; index2 < 1; ++index2)
{
int num1 = CheckCode.rand.Next(bitmap.Width / 2);
int num2 = CheckCode.rand.Next(bitmap.Width * 3 / 4, bitmap.Width);
int num3 = CheckCode.rand.Next(bitmap.Height);
int num4 = CheckCode.rand.Next(bitmap.Height);
graphics.DrawBezier(new Pen(CheckCode.c[index1], 2f), (float)num1, (float)num3, (float)((num1 + num2) / 4), 0.0f, (float)((num1 + num2) * 3 / 4), (float)bitmap.Height, (float)num2, (float)num4);
}
char[] chArray = randomcode.ToCharArray();
StringFormat format = new StringFormat(StringFormatFlags.NoClip);
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
for (int index2 = 0; index2 < chArray.Length; ++index2)
{
int index3 = CheckCode.rand.Next(5);
Font font = new Font(CheckCode.font[index3], 22f, FontStyle.Bold);
Point point = new Point(16, 16);
float angle = (float)ThreadSafeRandom.NextStatic(-maxValue, maxValue);
graphics.TranslateTransform((float)point.X, (float)point.Y);
graphics.RotateTransform(angle);
graphics.DrawString(chArray[index2].ToString(), font, brush, 1f, 1f, format);
graphics.RotateTransform(-angle);
graphics.TranslateTransform(2f, -(float)point.Y);
}
MemoryStream memoryStream = new MemoryStream();
bitmap.Save((Stream)memoryStream, ImageFormat.Png);
numArray = memoryStream.ToArray();
}
finally
{
graphics.Dispose();
bitmap.Dispose();
}
return(numArray);
}
public static byte[] CreateImage(string randomcode)
{
int num = 30;
int width = randomcode.Length * 30;
Bitmap bitmap = new Bitmap(width, 36);
Graphics graphics = Graphics.FromImage(bitmap);
byte[] result;
try
{
graphics.Clear(Color.Transparent);
int num2 = CheckCode.rand.Next(7);
Brush brush = new SolidBrush(CheckCode.c[num2]);
for (int i = 0; i < 1; i++)
{
int num3 = CheckCode.rand.Next(bitmap.Width / 2);
int num4 = CheckCode.rand.Next(bitmap.Width * 3 / 4, bitmap.Width);
int num5 = CheckCode.rand.Next(bitmap.Height);
int num6 = CheckCode.rand.Next(bitmap.Height);
graphics.DrawBezier(new Pen(CheckCode.c[num2], 2f), (float)num3, (float)num5, (float)((num3 + num4) / 4), 0f, (float)((num3 + num4) * 3 / 4), (float)bitmap.Height, (float)num4, (float)num6);
}
char[] array = randomcode.ToCharArray();
StringFormat stringFormat = new StringFormat(StringFormatFlags.NoClip);
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
for (int j = 0; j < array.Length; j++)
{
int num7 = CheckCode.rand.Next(5);
Font font = new Font(CheckCode.font[num7], 22f, FontStyle.Bold);
Point point = new Point(16, 16);
float num8 = (float)ThreadSafeRandom.NextStatic(-num, num);
graphics.TranslateTransform((float)point.X, (float)point.Y);
graphics.RotateTransform(num8);
graphics.DrawString(array[j].ToString(), font, brush, 1f, 1f, stringFormat);
graphics.RotateTransform(-num8);
graphics.TranslateTransform(2f, (float)(-(float)point.Y));
}
MemoryStream memoryStream = new MemoryStream();
bitmap.Save(memoryStream, ImageFormat.Png);
result = memoryStream.ToArray();
}
finally
{
graphics.Dispose();
bitmap.Dispose();
}
return(result);
}
/// <summary>
/// 创建随机码图片
/// </summary>
/// <param name="randomcode">随机码</param>
public static byte[] CreateImage(string randomcode)
{
int randAngle = 30; //随机转动角度
int mapwidth = (int)(randomcode.Length * 30);
Bitmap map = new Bitmap(mapwidth, 36); //创建图片背景
Graphics graph = Graphics.FromImage(map);
try
{
graph.Clear(Color.White);//清除画面，填充背景
int cindex = rand.Next(7);
Brush b = new System.Drawing.SolidBrush(c[cindex]);
for (int i = 0; i < 1; i++)
{
int x1 = rand.Next(map.Width / 2);
int x2 = rand.Next(map.Width * 3 / 4, map.Width);
int y1 = rand.Next(map.Height);
int y2 = rand.Next(map.Height);
graph.DrawBezier(new Pen(c[cindex], 2), x1, y1, (x1 + x2) / 4, 0, (x1 + x2) * 3 / 4, map.Height, x2, y2);
}
//验证码旋转，防止机器识别
char[] chars = randomcode.ToCharArray();//拆散字符串成单字符数组
//文字距中
StringFormat format = new StringFormat(StringFormatFlags.NoClip);
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
for (int i = 0; i < chars.Length; i++)
{
int findex = rand.Next(5);
Font f = new System.Drawing.Font(font[findex], 22, System.Drawing.FontStyle.Bold);//字体样式(参数2为字体大小)
Point dot = new Point(16, 16);
//graph.DrawString(dot.X.ToString(),fontstyle,new SolidBrush(Color.Black),10,150);//测试X坐标显示间距的
float angle = ThreadSafeRandom.NextStatic(-randAngle, randAngle); //转动的度数
graph.TranslateTransform(dot.X, dot.Y); //移动光标到指定位置
graph.RotateTransform(angle);
graph.DrawString(chars[i].ToString(), f, b, 1, 1, format);
graph.RotateTransform(-angle); //转回去
graph.TranslateTransform(2, -dot.Y); //移动光标到指定位置
}
//生成图片
System.IO.MemoryStream ms = new System.IO.MemoryStream();
map.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
return(ms.ToArray());
}
finally
{
graph.Dispose();
map.Dispose();
}
}
public static byte[] CreateVane(string wind, int id)
{
int randAngle = 0; //随机转动角度
int mapwidth = 0;
int f_size = 18;
if (id == 0)
{
mapwidth = 15;
f_size = 36;
}
else
{
mapwidth = 24;
f_size = 18;
}
Bitmap map = new Bitmap(mapwidth, 35);//创建图片背景
Graphics graph = Graphics.FromImage(map);
try
{
graph.Clear(Color.Transparent);//清除画面，填充背景
int cindex = rand.Next(7);
Brush b = new System.Drawing.SolidBrush(c[cindex]);
//验证码旋转，防止机器识别
//char[] chars = wind.ToCharArray();//拆散字符串成单字符数组
//文字距中
StringFormat format = new StringFormat(StringFormatFlags.NoClip);
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
//for (int i = 0; i < chars.Length; i++)
//{
int findex = rand.Next(5);
Font f = new System.Drawing.Font(font[findex], f_size, FontStyle.Bold); //字体样式(参数2为字体大小)
Point dot = new Point(16, 16);
//graph.DrawString(dot.X.ToString(),fontstyle,new SolidBrush(Color.Black),10,150);//测试X坐标显示间距的
float angle = ThreadSafeRandom.NextStatic(-randAngle, randAngle); //转动的度数
graph.TranslateTransform(dot.X, dot.Y); //移动光标到指定位置
graph.RotateTransform(angle);
graph.DrawString(wind.ToString(), f, b, 1, 1, format);
graph.RotateTransform(-angle); //转回去
graph.TranslateTransform(2, -dot.Y); //移动光标到指定位置
//}
//生成图片
System.IO.MemoryStream ms = new System.IO.MemoryStream();
map.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
return(ms.ToArray());
}
finally
{
graph.Dispose();
map.Dispose();
}
}
