阻止Mac UI控件绘制/重绘

问题描述

我知道Windows是否有一个消息你可以启用/禁用重新绘制继承自nsview的任何类。可以发送到hwnd以启用/禁用小工具绘画消息。这也传播到孩子hwnd。在Mac开发中有一个等效的方法吗？

我有一个现有的GUI库，我想知道是否有一个方法来做这个不需要修改现有的源代码？

解决方案

如果问题是你做了很多控件布局工作，发生时，可以使用 [NSWindow disableScreenUpdatesUntilFlush] 或全局 NSDisableScreenUpdates（）和 NSEnableScreenUpdates（）函数可防止屏幕更新，直到准备就绪。

Hello I was wondering if anyone could shed some light how I may enable/disable redrawing of any class inherited from a nsview?

I know Windows has a message you can send to a hwnd to enable/disable gadget painting messages. This also then propagates to child hwnds too. Is there an equivalent method in Mac development?

I have an existing GUI library and I was wondering if there is a method to do this that doesn't require modification of the existing source code?

解决方案

If the problem is that you're doing a lot of control layout work and don't want drawing to occur while this is happening, you can use either [NSWindow disableScreenUpdatesUntilFlush] or the global NSDisableScreenUpdates() and NSEnableScreenUpdates() functions to prevent the screen updating until you're ready.

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