Summary of commonly used GDI+ text operations in C#
本文实例汇总了C#常用GDI+文字操作,包含了文字的投影、倒影、旋转等常见的效果,在进行C#应用程序开发中有不错的实用价值。分享给大家供大家参考之用。具体如下:
一、投影文字
private void Form1_Paint(object sender, PaintEventArgs e) { //投影文字 Graphics g = this.CreateGraphics(); //设置文本输出质量 g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit; g.SmoothingMode = SmoothingMode.AntiAlias; Font newFont = new Font("Times New Roman", 48); Matrix matrix = new Matrix(); //投射 matrix.Shear(-1.5f, 0.0f); //缩放 matrix.Scale(1, 0.5f); //平移 matrix.Translate(130, 88); //对绘图平面实施坐标变换、、 g.Transform = matrix; SolidBrush grayBrush = new SolidBrush(Color.Gray); SolidBrush colorBrush = new SolidBrush(Color.BlueViolet); string text = "MINGRISOFT"; //绘制阴影 g.DrawString(text, newFont, grayBrush, new PointF(0, 30)); g.ResetTransform(); //绘制前景 g.DrawString(text, newFont, colorBrush, new PointF(0, 30)); }
二、倒影文字
private void Form1_Paint(object sender, PaintEventArgs e) { //倒影文字 Brush backBrush = Brushes.Gray; Brush foreBrush = Brushes.Black; Font font = new Font("幼圆", Convert.ToInt16(40), FontStyle.Regular); Graphics g = this.CreateGraphics(); string text = "MINGRISOFT"; SizeF size = g.MeasureString(text, font); int posX = (this.Width - Convert.ToInt16(size.Width)) / 2; int posY = (this.Height - Convert.ToInt16(size.Height)) / 2; g.TranslateTransform(posX, posY); int ascent = font.FontFamily.GetCellAscent(font.Style); int spacing = font.FontFamily.GetLineSpacing(font.Style); int lineHeight = System.Convert.ToInt16(font.GetHeight(g)); int height = lineHeight * ascent / spacing; GraphicsState state = g.Save(); g.ScaleTransform(1, -1.0F); g.DrawString(text, font, backBrush, 0, -height); g.Restore(state); g.DrawString(text, font, foreBrush, 0, -height); }
三、文字填充线条
private void Form1_Paint(object sender, PaintEventArgs e) { //使用图像填充文字线条 TextureBrush brush = new TextureBrush(Image.FromFile(Application.StartupPath + "\\花.jpg")); Graphics g = e.Graphics; g.DrawString("MINGRISOFT", new Font("隶书", 60), brush, new PointF(0, 0)); }
四、旋转文字
private void Form1_Paint(object sender, PaintEventArgs e) { //旋转显示文字 Graphics g = e.Graphics; g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; for (int i = 0; i <= 360; i += 10) { //平移Graphics对象到窗体中心 g.TranslateTransform(this.Width / 2, this.Height / 2); //设置Graphics对象的输出角度 g.RotateTransform(i); //设置文字填充颜色 Brush brush = Brushes.DarkViolet; //旋转显示文字 g.DrawString("......MINGRISOFT", new Font("Lucida Console", 11f), brush, 0, 0); //恢复全局变换矩阵 g.ResetTransform(); } }
五、印版文字
private void Form1_Paint(object sender, PaintEventArgs e) { //印版文字 int i = 0; Brush backBrush = Brushes.Black; Brush foreBrush = Brushes.Violet; Font font = new Font("Times New Roman", System.Convert.ToInt16(40), FontStyle.Regular); Graphics g = this.CreateGraphics(); g.Clear(Color.White); string text = "MINGRISOFT"; SizeF size = g.MeasureString(text, font); Single posX = (this.Width - Convert.ToInt16(size.Width)) / 2; Single posY = (this.Height - Convert.ToInt16(size.Height)) / 3; while (i < Convert.ToInt16(20)) { g.DrawString(text, font, backBrush, posX - i, posY + i); i = i + 1; } g.DrawString(text, font, foreBrush, posX, posY); }
相信本文所述实例对大家的C#程序设计有一定的帮助。
更多C#常用GDI+文字操作汇总相关文章请关注PHP中文网!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



In C, the char type is used in strings: 1. Store a single character; 2. Use an array to represent a string and end with a null terminator; 3. Operate through a string operation function; 4. Read or output a string from the keyboard.

In C language, special characters are processed through escape sequences, such as: \n represents line breaks. \t means tab character. Use escape sequences or character constants to represent special characters, such as char c = '\n'. Note that the backslash needs to be escaped twice. Different platforms and compilers may have different escape sequences, please consult the documentation.

The usage methods of symbols in C language cover arithmetic, assignment, conditions, logic, bit operators, etc. Arithmetic operators are used for basic mathematical operations, assignment operators are used for assignment and addition, subtraction, multiplication and division assignment, condition operators are used for different operations according to conditions, logical operators are used for logical operations, bit operators are used for bit-level operations, and special constants are used to represent null pointers, end-of-file markers, and non-numeric values.

In C language, the main difference between char and wchar_t is character encoding: char uses ASCII or extends ASCII, wchar_t uses Unicode; char takes up 1-2 bytes, wchar_t takes up 2-4 bytes; char is suitable for English text, wchar_t is suitable for multilingual text; char is widely supported, wchar_t depends on whether the compiler and operating system support Unicode; char is limited in character range, wchar_t has a larger character range, and special functions are used for arithmetic operations.

The difference between multithreading and asynchronous is that multithreading executes multiple threads at the same time, while asynchronously performs operations without blocking the current thread. Multithreading is used for compute-intensive tasks, while asynchronously is used for user interaction. The advantage of multi-threading is to improve computing performance, while the advantage of asynchronous is to not block UI threads. Choosing multithreading or asynchronous depends on the nature of the task: Computation-intensive tasks use multithreading, tasks that interact with external resources and need to keep UI responsiveness use asynchronous.

In C language, char type conversion can be directly converted to another type by: casting: using casting characters. Automatic type conversion: When one type of data can accommodate another type of value, the compiler automatically converts it.

There is no built-in sum function in C language, so it needs to be written by yourself. Sum can be achieved by traversing the array and accumulating elements: Loop version: Sum is calculated using for loop and array length. Pointer version: Use pointers to point to array elements, and efficient summing is achieved through self-increment pointers. Dynamically allocate array version: Dynamically allocate arrays and manage memory yourself, ensuring that allocated memory is freed to prevent memory leaks.

The char array stores character sequences in C language and is declared as char array_name[size]. The access element is passed through the subscript operator, and the element ends with the null terminator '\0', which represents the end point of the string. The C language provides a variety of string manipulation functions, such as strlen(), strcpy(), strcat() and strcmp().
