抽象与Drawtext性能 [英] Drawstring vs. Drawtext performance

问题描述

我有一个自定义控件，里面使用了很多Label控件，在绘制/重绘屏幕时我开始遇到性能问题所以我决定删除它们，因为它们看起来压倒一切，只是绘制我需要的文本



我开始使用Graphics.DrawString方法，这是超快的，调整大小/重绘屏幕时的性能是完美的，但后来我注意到文本渲染不完全相同一个标签使用，看起来不那么好。



然后我发现了 TextRenderer.DrawText 方法，我切换到它，但问题又回来了，当你调整窗体/控件的大小时，性能很差。



这是正常行为吗？我研究了一下，然后开始读到 TextRenderer.DrawText 是更好和更好的，因为它使用GDI +而不是GDI，但这显然不是我的情况？



我们正在谈论一个100％标准的WinForm vb.net应用程序，启用了 VisualStyles 。



我尝试了什么：

 TextRenderer.DrawText（e。图形，  Hello World，我 .Font，新矩形（ 1 ， 1 ， 200 ， 20 ），我 .ForeColor，TextFormatFlags.Left）
 
 e.Graphics.DrawString（  Hello World，我 .Font，_Brush，新 Rect角度（ 1 ， 1 ， 200 ，  20 ），_ StringFormat）

解决方案

在< a href =https://stackoverflow.com/questions/71374/fastest-api-for-rendering-text-in-windows-forms> c＃ - 用于在Windows窗体中呈现文本的最快API？ - Stack Overflow [ ^ ]

I have a custom control that used a lot of Label controls inside, and i started experiencing performance issues when drawing/redrawing the screen So i decided to remove them as they look overwhelming and just draw the texts I needed

I started using Graphics.DrawString method, which was SUPER fast and the performance when resizing/redrawing the screen was perfect, but then I noticed the text render wasn't exactly the same as the one Labels uses, and didn't look that good.

I then found out about TextRenderer.DrawText method and I switched to it, but the problem came back again, when you resize the form/control the performance is awful.

Is this a normal behavior? I researched a bit and came to read that TextRenderer.DrawText is preferable and better as it uses GDI+ as opposed as GDI, but this clear is not my case?

We are talking about a 100% standard WinForm vb.net app with VisualStyles enabled.

What I have tried:

TextRenderer.DrawText(e.Graphics, "Hello World", Me.Font, New Rectangle(1, 1, 200, 20), Me.ForeColor, TextFormatFlags.Left)

e.Graphics.DrawString("Hello World", Me.Font, _Brush, New Rectangle(1, 1,200, 20), _StringFormat)

解决方案

There's a very nice conversation at c# - Fastest API for rendering text in Windows Forms? - Stack Overflow[^]

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