有没有办法在Qt禁止电脑睡觉？ [英] Is there a way in Qt to prohibit the computer from going to sleep?

问题描述

我正在写一个Qt应用程序，做一些沉重的计算，但在Mac（可能也在Windows上，但我目前没有办法检查这一点），一旦计算机进入睡眠模式，执行停止。

I am writing a Qt application that does some heavy computations, but on a Mac (potentially also on Windows but I currently have no way of checking this), the execution ceases as soon as the computer goes into sleeping mode.

我想要一种方法来继续执行，即使屏幕转到屏幕保护程序或空白。显然，你可以要求用户改变他/她的能量设置，但这远不是一个理想的解决方案。是否有正确的方法这样做？

I would like a way to continue the execution even when the screen goes to screensaver or on blank. Obviously you can ask the user to change his/her energy settings, but that's far from an ideal solution. Is there a proper way of doing this?

推荐答案

在彻底搜索Qt 5.2 API后， t提供任何功能来改变能量设置（所以既不是Mac，也不是任何其他操作系统）。我还没有找到任何迹象表明它在他们的路线图上。

After a thorough search through the Qt 5.2 API, it seems that Qt doesn't offer any functionality to change the energy settings (so neither for Mac, nor any other operating system). I haven't found any indication that it's on their road map either.

可以找到一个可能的解决方案Mac OSX使用苹果的Objective-C API，在这里（感谢@Kuba）。

A possible solution for Mac OSX using Apple's Objective-C API can be found here (thanks, @Kuba).

在Windows上，可以使用SetThreadExecutionState函数处理电源设置（请参阅这个问题，C＃）。

On Windows, power settings can be dealt with using the SetThreadExecutionState function (see this question, C#).

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