search
HomeBackend DevelopmentC#.Net TutorialHow to implement special-shaped forms and controls using WinForm in C#

这篇文章主要介绍了C# WinForm制作异形窗体与控件的方法,结合实例形式分析了WinForm制作异形窗体与控件的原理、实现步骤与相关操作技巧,需要的朋友可以参考下

本文实例讲述了C# WinForm制作异形窗体与控件的方法。分享给大家供大家参考,具体如下:

制作异形窗体或控件的思路一般都是想办法生成一个region,然后设置给指定的窗口或控件。生成region的方法有很多,最常用的就是从一幅图片生成,把该图片中的透明色部分“抠”掉,剩下的部分作为一个region。设置窗口或控件的region可以用SetWindowRgn API,不过.NET framework封装了这个操作,在C#中只要对窗口或控件的Region属性赋值就可以了。下面我就把我在C#中实现异形窗体的核心代码贴出来给大家看看,有什么意见尽管提,别客气哦

首先,是一个根据Bitmap对象生成Region的方法:

/// <summary>
/// 取得一个图片中非透明色部分的区域。
/// </summary>
/// <param name="Picture">取其区域的图片。</param>
/// <param name="TransparentColor">透明色。</param>
/// <returns>图片中非透明色部分的区域</returns>
private Region BmpRgn(Bitmap Picture, Color TransparentColor)
{
   int nWidth = Picture.Width;
   int nHeight = Picture.Height;
   Region rgn = new Region();
   rgn.MakeEmpty();
   bool isTransRgn;//前一个点是否在透明区
   Color curColor;//当前点的颜色
   Rectangle curRect = new Rectangle();
   curRect.Height = 1;
   int x = 0, y = 0;
   //逐像素扫描这个图片,找出非透明色部分区域并合并起来。
   for(y = 0; y < nHeight; ++y)
   {
     isTransRgn = true;
     for (x = 0; x < nWidth; ++x)
     {
       curColor = Picture.GetPixel(x,y);
       if(curColor == TransparentColor || x == nWidth - 1)//如果遇到透明色或行尾
          {
            if(isTransRgn == false)//退出有效区
            {
              curRect.Width = x - curRect.X;
              rgn.Union(curRect);
            }
          }
          else//非透明色
          {
            if(isTransRgn == true)//进入有效区
            {
              curRect.X = x;
              curRect.Y = y;
            }
          }//if curColor
          isTransRgn = curColor == TransparentColor;  
       }//for x
     }//for y
     return rgn;
}

原理很简单,就是对该图片逐行扫描,在每一行中把那些非透明色的矩形(只有一个像素高)合并(union)到一个Region对象中,当扫描完整个图片,得到的也就是我们想要的Region了。这种算法在很多文章里都有介绍的。

有了region,下面就简单了:

this.Region = BmpRgn(new Bitmap("d:\\a.bmp"), Color.FromArgb(0, 0, 0));

上面的代码就是把d:\a.bmp的轮廓作为主窗口的region的,假设该图片的背景黑色(Color.FromArgb(0, 0, 0))。

其实不光是Form,任何控件都可以用这个方法设置Region,制作出异形控件。

The above is the detailed content of How to implement special-shaped forms and controls using WinForm in C#. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
The Continued Relevance of C# .NET: A Look at Current UsageThe Continued Relevance of C# .NET: A Look at Current UsageApr 16, 2025 am 12:07 AM

C#.NET is still important because it provides powerful tools and libraries that support multiple application development. 1) C# combines .NET framework to make development efficient and convenient. 2) C#'s type safety and garbage collection mechanism enhance its advantages. 3) .NET provides a cross-platform running environment and rich APIs, improving development flexibility.

From Web to Desktop: The Versatility of C# .NETFrom Web to Desktop: The Versatility of C# .NETApr 15, 2025 am 12:07 AM

C#.NETisversatileforbothwebanddesktopdevelopment.1)Forweb,useASP.NETfordynamicapplications.2)Fordesktop,employWindowsFormsorWPFforrichinterfaces.3)UseXamarinforcross-platformdevelopment,enablingcodesharingacrossWindows,macOS,Linux,andmobiledevices.

C# .NET and the Future: Adapting to New TechnologiesC# .NET and the Future: Adapting to New TechnologiesApr 14, 2025 am 12:06 AM

C# and .NET adapt to the needs of emerging technologies through continuous updates and optimizations. 1) C# 9.0 and .NET5 introduce record type and performance optimization. 2) .NETCore enhances cloud native and containerized support. 3) ASP.NETCore integrates with modern web technologies. 4) ML.NET supports machine learning and artificial intelligence. 5) Asynchronous programming and best practices improve performance.

Is C# .NET Right for You? Evaluating its ApplicabilityIs C# .NET Right for You? Evaluating its ApplicabilityApr 13, 2025 am 12:03 AM

C#.NETissuitableforenterprise-levelapplicationswithintheMicrosoftecosystemduetoitsstrongtyping,richlibraries,androbustperformance.However,itmaynotbeidealforcross-platformdevelopmentorwhenrawspeediscritical,wherelanguageslikeRustorGomightbepreferable.

C# Code within .NET: Exploring the Programming ProcessC# Code within .NET: Exploring the Programming ProcessApr 12, 2025 am 12:02 AM

The programming process of C# in .NET includes the following steps: 1) writing C# code, 2) compiling into an intermediate language (IL), and 3) executing by the .NET runtime (CLR). The advantages of C# in .NET are its modern syntax, powerful type system and tight integration with the .NET framework, suitable for various development scenarios from desktop applications to web services.

C# .NET: Exploring Core Concepts and Programming FundamentalsC# .NET: Exploring Core Concepts and Programming FundamentalsApr 10, 2025 am 09:32 AM

C# is a modern, object-oriented programming language developed by Microsoft and as part of the .NET framework. 1.C# supports object-oriented programming (OOP), including encapsulation, inheritance and polymorphism. 2. Asynchronous programming in C# is implemented through async and await keywords to improve application responsiveness. 3. Use LINQ to process data collections concisely. 4. Common errors include null reference exceptions and index out-of-range exceptions. Debugging skills include using a debugger and exception handling. 5. Performance optimization includes using StringBuilder and avoiding unnecessary packing and unboxing.

Testing C# .NET Applications: Unit, Integration, and End-to-End TestingTesting C# .NET Applications: Unit, Integration, and End-to-End TestingApr 09, 2025 am 12:04 AM

Testing strategies for C#.NET applications include unit testing, integration testing, and end-to-end testing. 1. Unit testing ensures that the minimum unit of the code works independently, using the MSTest, NUnit or xUnit framework. 2. Integrated tests verify the functions of multiple units combined, commonly used simulated data and external services. 3. End-to-end testing simulates the user's complete operation process, and Selenium is usually used for automated testing.

Advanced C# .NET Tutorial: Ace Your Next Senior Developer InterviewAdvanced C# .NET Tutorial: Ace Your Next Senior Developer InterviewApr 08, 2025 am 12:06 AM

Interview with C# senior developer requires mastering core knowledge such as asynchronous programming, LINQ, and internal working principles of .NET frameworks. 1. Asynchronous programming simplifies operations through async and await to improve application responsiveness. 2.LINQ operates data in SQL style and pay attention to performance. 3. The CLR of the NET framework manages memory, and garbage collection needs to be used with caution.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Chat Commands and How to Use Them
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Atom editor mac version download

Atom editor mac version download

The most popular open source editor