events

问题 Laravel Version: 5.5.* PHP Version: 7.1.* According to the docs https://laravel.com/docs/5.5/notifications it should be super simple to subscribe to Notification events. I've followed the steps in the docs, but my Notifications implement ShouldQueue and they weren't properly populating the event listener. I'm wonder if the issue seems to be in the framework code . Notice that in the framework github (linked right above), that new Events\NotificationSent($notifiable, $notification, $channel,

问题 I am using kafka for event-sourcing. I realized that we still need to configure the log retention time, i.e. log.retention.hours . What is the best value to use if I want to keep all my messages indefinitely? The sample configuration for log.retention.bytes is set to -1, can I use -1 also in the log.retention.hours ? 回答1: See the following Kafka JIRA which is due for the 0.9.0.0 release. For the time being set as suggested: log.retention.bytes = -1 log.retention.hours = 2147483647 Which is

问题 I am using kafka for event-sourcing. I realized that we still need to configure the log retention time, i.e. log.retention.hours . What is the best value to use if I want to keep all my messages indefinitely? The sample configuration for log.retention.bytes is set to -1, can I use -1 also in the log.retention.hours ? 回答1: See the following Kafka JIRA which is due for the 0.9.0.0 release. For the time being set as suggested: log.retention.bytes = -1 log.retention.hours = 2147483647 Which is

问题 I have a Qt application with this kind of main()... int main(int argc, char *argv[]) { QApplication app(argc, argv); MainWindow mainWin; ... A separate, non-GUI thread is launched here mainWin.Init(); mainWin.show(); app.exec(); } This other thread that is created before the mainWin needs to know when it can start communicating with the mainWin. But since the mainWin uses Qt signals, slots, timers, etc, it's not truly ready to rock until the event loop is running (via exec()). My question is:

问题 So I'm at the point of understanding events and delegates. I overally understand the usage of delegates. The only thing that concerns me about delegates is whether a delegate can be configured to work with functions that are not related to events in any way... if yes, how do I write the logic for a delegate-defined function? (I guess such function doesn't really have much of a point to it, but it's good to know.) As for events... I'm having a hard time understanding it. I get the idea that an

问题 So I'm at the point of understanding events and delegates. I overally understand the usage of delegates. The only thing that concerns me about delegates is whether a delegate can be configured to work with functions that are not related to events in any way... if yes, how do I write the logic for a delegate-defined function? (I guess such function doesn't really have much of a point to it, but it's good to know.) As for events... I'm having a hard time understanding it. I get the idea that an

问题 So I'm at the point of understanding events and delegates. I overally understand the usage of delegates. The only thing that concerns me about delegates is whether a delegate can be configured to work with functions that are not related to events in any way... if yes, how do I write the logic for a delegate-defined function? (I guess such function doesn't really have much of a point to it, but it's good to know.) As for events... I'm having a hard time understanding it. I get the idea that an

问题 There was no offsetX in e.touches[0] when I tried on iPad. Does anyone know where I can get this value of offsetX? 回答1: You can use clientX or pageX, see here 回答2: The correct answer based on the comments in the suggested answer: e.offsetX = e.touches[0].pageX - e.touches[0].target.offsetLeft; e.offsetY = e.touches[0].pageY - e.touches[0].target.offsetTop; This ignores any transformations such as rotations or scaling. Also be sure to check if there are any touches. 回答3: Thanks, @Kontiki -

问题 here is my situation: we are writing an application that must transform Microsoft Kinect coordinates into keyboard and mouse events. When we need to take control of the mouse, everything works as we intended in ANY kind of application. The problem arises when we need to send keyboard events (like key down or key up) to applications that doesn't handle Windows events, like games, for example. We tried the SendKeys class of the .net framework, and it only works with Windows applications. When

问题 The two key event argument classes KeyEventArgs and PreviewKeyDownEventArgs each have two properties, KeyCode and KeyData , which are both of the enumeration type Keys. What is the difference between these two properties? Do the values in them ever differ from each other? If so, when and why? 回答1: KeyCode is an enumeration that represents all the possible keys on the keyboard. KeyData is the KeyCode combined with the modifiers (Ctrl, Alt and/or Shift). Use KeyCode when you don't care about