I want to scale an image in C# with quality level as good as Photoshop does. Is there any C# image processing library available to do this thing? Here's a nicely commented Image Manipulation helper class that you can look at and use. I wrote it as an example of how to perform certain image manipulation tasks in C#. You'll be interested in the ResizeImage function that takes a System.
我想用C＃调整图像的质量，与Photoshop一样好。 有没有任何C＃图像处理库可以做这件事情？ 这里有一个很好的评论的图像操作助手类，你可以看看和使用。 我将它作为如何在C＃中执行某些图像处理任务的示例进行了编写。 你会对ResizeImage函数感兴趣，它将System.Drawing.Image，width和height作为参数。 using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; namespace D
In my user control's paint handler I iterate over a collection of predefined Bitmap objects and draw them to the client area thusly: C# version: private void Control_Paint(object sender, PaintEventArgs e) { Graphics g = e.Graphics; foreach (BitmapObj bmpObj in _bitmapObjCollection) { g.DrawImageUnscaled(bmpObj.Bitmap, bmpObj.Location); } } VB.NET version: Private Sub
在我的用户控件的绘制处理程序中，我迭代了一组预定义的Bitmap对象，并将它们绘制到客户区： C＃版本： private void Control_Paint(object sender, PaintEventArgs e) { Graphics g = e.Graphics; foreach (BitmapObj bmpObj in _bitmapObjCollection) { g.DrawImageUnscaled(bmpObj.Bitmap, bmpObj.Location); } } VB.NET版本： Private Sub Control_Paint(ByVal sender As Object, ByVal e As PaintE
I have a list of object that needs to processed. So say that the list is a list of all customers and I need to perform CPU intensive calculation on all of them. Though before and after this calculation I need to fetch and commit data back into a database, so its not purely a CPU task. so what I do is Parallel.ForEach(list, action); Where Action is literally 1 Fetch customer data 2 Proces
我有一个需要处理的对象列表。 所以说这个清单是所有客户的清单，我需要对它们进行CPU密集型计算。 虽然在计算之前和之后，我需要将数据提取并提交到数据库中，因此它不是纯粹的CPU任务。 所以我做的是 Parallel.ForEach(list, action); 行动的字面意思 1 Fetch customer data 2 Process calculate (time and memory intensive task) 3 Commit back customer data 这些代码过去很好用，但最近有时在处理大量记录的 多
Right now, I've got a C# program that performs the following steps on a recurring basis: Grab current list of tasks from the database Using Parallel.ForEach(), do work for each task However, some of these tasks are very long-running. This delays the processing of other pending tasks because we only look for new ones at the start of the program. Now, I know that modifying the collecti
现在，我有一个C＃程序，可以定期执行以下步骤： 从数据库中获取当前任务列表 使用Parallel.ForEach（），可以为每个任务工作 但是，其中一些任务的运行时间非常长。 这延迟了其他未决任务的处理，因为我们只在程序开始时寻找新的任务。 现在，我知道修改被迭代的集合是不可能的（对吧？），但是C＃并行框架中是否有一些等价的功能可以让我在列表中添加工作，同时处理列表中的项目？ 一般来说，你是正确的，修改一个
my unique doubt here is what task do I have to add to my task list to wait for the process to finished. or well if you have a different approach will be helpful, I basically want to iterate a collections of IDs where on each ID I have two process one depend on the other result. first task is a long running task over my local network. and depending on the result I will add to "MyCollection
我在这里唯一的疑问是，我必须添加什么任务才能添加到我的任务列表中，以等待该过程完成。 或者如果你有不同的方法会有所帮助，我基本上想要迭代一个ID集合，在每个ID上有两个过程依赖于另一个结果。 第一项任务是通过本地网络执行的长期任务。 并根据结果，我会添加到“MyCollection”一个新的实例，如果该任务返回true。 立足于管道模式，现在 所以，要控制所有的任务等到他们完成是我的疑问。，请看例子和评论，谢谢。 Li
What is the simplest way to update a Label from another thread? I have a Form on thread1 , and from that I'm starting another thread ( thread2 ). While thread2 is processing some files I would like to update a Label on the Form with the current status of thread2 's work. How can I do that? For .NET 2.0, here's a nice bit of code I wrote that does exactly what you want, and work
从另一个线程更新Label的最简单方法是什么？ 我在thread1上有一个Form ，然后从另一个线程（ thread2 ）开始。 虽然thread2正在处理一些文件，但我想用thread2的当前状态更新Form上的Label 。 我怎样才能做到这一点？ 对于.NET 2.0，下面是我写的代码，它完全符合你的需求，适用于Control上的任何属性： private delegate void SetControlPropertyThreadSafeDelegate( Control control, string propertyName,
I need some help on looking for references in building a complex text/code editor, not just a simple one that you can only write and read plain text. What I'm actually aiming for is a text editor with Line Numbers display on the side and code highlightinh and lexing. Simply put, like a notepad++ or a dreamweaver style of text/code editor. And I want to build it on C#. I won't exactly
在构建复杂的文本/代码编辑器时，我需要寻找一些帮助，而不仅仅是一个简单的，只能编写和阅读纯文本的参考。 我实际上瞄准的是一个文本编辑器，其侧面显示了行号，并且代码突出显示，并且有趣。 简单地说，就像记事本++或Dreamweaver风格的文本/代码编辑器。 我想在C＃上构建它。 我不会完全要求代码，但有些样本真的会有很大的帮助。 我可以基于我的工作，概念等等。我真的需要一些东西开始。 任何帮助表示赞赏。 非常
If a process is currently stopped due to a SIGTRAP signal and it is sent a SIGSTOP signal via kill(), what would be the default behavior? Would the SIGSTOP be a pending signal that is delivered after the process continues again? Or will it just be discarded/ignored? If the SIGSTOP is queued up, is there any way to remove it from the queue from outside of that process, such as in a tracing pro
如果一个进程当前由于SIGTRAP信号而停止，并且它通过kill（）发送了SIGSTOP信号，那么缺省行为是什么？ SIGSTOP是一个待处理的信号，在该过程继续之后交付？ 或者它会被丢弃/忽略？ 如果SIGSTOP排队，是否有任何方法将它从该进程外的队列中移出，例如在跟踪过程中？ 从信号（7）手册页： The signals SIGKILL and SIGSTOP cannot be caught, blocked, or ignored. 一个简单的测试，在断点处停止并发送一个SIGSTOP显示当
I am looking for a way to approximate a volume of fluid moving over a heightmap. The easiest solution I can think of is to approximate it as a large number of non-drawn spheres, of small diameter (<0.1m). I would then place a visible plane representing the surface of the water on "top" of the spheres, at the locations they came to rest. To my knowledge, no managed physics engines
我正在寻找一种方法来逼近在高度图上移动的流体体积。 我能想到的最简单的解决方案是将其近似为大量直径较小（<0.1m）的非绘制球体。 然后，我会在球体的“顶部”放置一个代表水面的可见平面，在他们停下来的位置。 据我所知，没有托管的物理引擎包含一个内置的流体模拟器，因此是一个问题。 实现将包括使用诸如JigLibX之类的物理引擎，它能够模拟球体的运动。 为了确定飞机的高度，我考虑平均分组顶层上每个球体的最大高
I am writing a parser for a language, and the scanner is designed to either also return unneeded terminals (eg whitespacing) OR not to do so based on a boolean flag. Now, in the parser, I don't want to clutter the grammar with all those terminals, they should be swallowed somehow "automagically" by the parse tree that I'm constructing. To do this "magic", I t
我正在为一种语言编写解析器，并且该扫描器被设计用于 或者还返回不需要的终端（例如空白）或者 不这样做 基于布尔标志。 现在，在解析器中，我不想把所有这些终端的语法混淆在一起，它们应该被我正在构建的解析树“自动地”自动“吞噬”。 要做到这一点“魔术”，我想我会链接终端（简单链接的循环列表），所以我可以迭代它们并在发生缩减时“填空”（我使用LALR（1）解析器生成器） 。 这听起来像一个理智的想法，虽然有一