Cocoa - 捕获鼠标就像screencapture实用程序一样(Cocoa - capture mouse just like screencapture utility)
我试图找到一个基本上让我疯狂的话题的答案。 有没有办法像Apple的screencapture实用工具那样捕获鼠标指针？ 我想要做的是要求我绘制一个清晰的窗口，不会激活我的应用程序，而是覆盖所有内容，包括Dock。 我见过的唯一软件是使用命令+ shift + 4进行屏幕捕获。
我已经尝试创建一个非激活的NSPanel但它不能用于光标，除非我的应用程序处于活动状态（我不希望它）。 另外NSPanel的问题是，如果我在仪表板中，我无法激活它上面的窗口。
我想要做的是这个要求。 •我的应用程序不得激活（将任何活动应用程序保持为活动状态）•必须能够更改NSCursor•鼠标不会触发停靠隐藏/取消隐藏（或任何其他事件）•甚至可以在仪表板中工作
我之前尝试过此代码，但其限制与上面列出的相同。
NSScreen * s = [NSScreen mainScreen]; [self.window setStyleMask:NSNonactivatingPanelMask]; [self.window setHasShadow:NO]; [self.window setOpaque:NO]; [self.window setBackgroundColor:[NSColor clearColor]]; [self.window setFrame:s.frame display:NO]; [self.window orderFront:self]; [self.window setLevel:NSMainMenuWindowLevel + 1]; [self.trackingView addCursorRect:self.window.frame cursor:[NSCursor closedHandCursor]];I am trying to find the answer to a topic which has basically driven me insane. Is there a way to capture the mouse pointer much like Apple's screencapture utility works? What I am trying to do requires me to draw a clear window that does not activate my app but instead overlays everything, including the dock. The only software I have seen do this is screencapture by utilizing command+shift+4.
I have tried creating a non-activating NSPanel but it doesn't work with cursor rects unless my app is active (which I don't want it to be). Also the problem with NSPanel is that if I am in Dashboard I cannot activate the window on it.
The requirements for what I am trying to do are this. • My app must not activate (keep whatever active app as active) • Must be able to change NSCursor • Mouse does not trigger dock hiding/unhiding (or any other event) • Work even in dashboard
I have tried this code before but its limitations are the same as listed above.
NSScreen * s = [NSScreen mainScreen]; [self.window setStyleMask:NSNonactivatingPanelMask]; [self.window setHasShadow:NO]; [self.window setOpaque:NO]; [self.window setBackgroundColor:[NSColor clearColor]]; [self.window setFrame:s.frame display:NO]; [self.window orderFront:self]; [self.window setLevel:NSMainMenuWindowLevel + 1]; [self.trackingView addCursorRect:self.window.frame cursor:[NSCursor closedHandCursor]];
原文：https://stackoverflow.com/questions/19646681
更新时间：2022-12-07 19:12
最满意答案
你可以使用字典的
pop方法：for key in expected_keys: foo.__dict__[key] = d.pop(key) foo.additional_attributes(**d)You can use the
popmethod of dictionaries:for key in expected_keys: foo.__dict__[key] = d.pop(key) foo.additional_attributes(**d)
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