PyQt4-检测全局鼠标单击 [英] PyQt4 - detect global mouse click

问题描述

我正在从事的一个小项目的一部分涉及校准"要截取其屏幕的屏幕坐标.
通过屏幕"，我指的是整个桌面，而不是我的GUI窗口.

A part of a small project I am working on involves 'calibrating' the coordinates of the screen of which to take a screen capture of.
By the 'screen', I refer to the entire desktop, not my GUI window.

当出现QDialog窗口(我已经将其子类化)时，将对坐标进行校准.
提示用户单击屏幕上的多个位置.
我需要该程序来记录在屏幕上任何地方发生的所有鼠标单击的位置-这些鼠标单击本身不在此窗口中，因为它们不在此窗口内.

The coordinates are calibrated when a QDialog window appears (which I've subclassed).
The user is prompted to click several locations on the screen.
I need the program to record the locations of all mouse clicks occuring anywhere on the screen - ones that don't natively trigger a QDialog mouseEvent, since they are outside this window.

显然，改写mouseEvent方法不起作用，因为QDialog无法接收到点击.

Obviously overwriting the mouseEvent method does not work, since the QDialog doesn't recieve the clicks.

如何捕获全局鼠标单击，以便在单击屏幕的任何部分时触发事件并将其发送到QDialog?

How can I capture global mouse clicks, so that an event is triggered and sent to the QDialog when any part of the screen is clicked?

(我更喜欢基于Qt的解决方案，但需要时可以向其他库开放).

(I'd prefer a Qt based solution, but am open to other libraries if need be).

谢谢！

推荐答案

我认为这是不可能的，而是使用pyHook， 让Qt抽出消息.

I've assumed this isn't possible and am instead using pyHook, letting Qt pump the messages.

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