如何避免在GUI调整大小时进行瞬时更新? [英] How to avoid transient updates in a GUI resize?

问题描述

如果您快速地拖动窗口的顶部或左侧边框，您会注意到窗口的相对边缘会振动-它会被拖动，但随后会重新调整以增大尺寸.

If you drag the top or left border of a window semi-quickly, you should notice that the opposite edge of the window vibrates -- it gets dragged, but then re-adjusts to increase the size.

当您具有可动态调整大小的项目时，问题就更加严重了，然后您的许多控件就开始明显地在屏幕上滑动和调整大小.

The problem is a lot worse when you have items that dynamically resize -- then a bunch of your controls start sliding and resizing on the screen, quite visibly.

有什么办法可以防止这些短暂的影响?

Is there any way to prevent these transient effects?

例如也许特定序列响应WM_SIZE之类的消息可以抑制这种情况?我不知道.

e.g. Perhaps a particular sequence of responding to messages like WM_SIZE can suppress this? I don't know.

(这似乎发生在我所见过的每个框架中，甚至是普通的Win32.只要打开资源管理器或其他内容并拖动其顶部或左侧，您就会明白我的意思了.)

(It seems to happen in every framework I've seen, even plain Win32. Just open up Explorer or something and drag its top or left edge, and you'll see what I mean.)

推荐答案

响应WM_WINDOWPOSCHANGING消息，并在WINDOWPOS结构的flags成员中设置SWP_NOCOPYBITS标志.

Respond to the WM_WINDOWPOSCHANGING message and set the SWP_NOCOPYBITS flag in the flags member of the WINDOWPOS structure.

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