monitor

问题 I have a computer that is logging events from a device on a serial port. Putty is logging them to a file. I used to have this running on a Linux machine. Basically would tail -f event.log >> script.sh This was the *nix script #!/bin/bash outfile=sras_pages.log while read -r line do IFS=' ' read -ra split <<< "$line" [[ ${split[1]} == AC/BATT_PWR ]] && echo "${line:9:29}" [[ ${split[1]} == COMM-FAULT ]] && echo "${line:9:29}" done >> "$outfile" Basically I want to forward only character

问题 I have a PC with multiple monitors. I want to display different windows in different monitor with OpenCV/C++. How can I show the window in the specific window? Thanks! 回答1: You should use MoveWindow with (values ~= your screen resolution). Just find values which would suit you better, you can try using your OS API to get values for screen resolution, or get this data from system variables 来源： https://stackoverflow.com/questions/43015077/how-to-display-different-windows-in-different-monitors

问题 I have my device connected to debug Android apps, but I need to see the HTTP requests and responses (inc. header info). I've seen a similar question asked on how to do this for an emulator, but how to do this when a real device is connected? 回答1: You can use Charles, is a really powerful tool that does exactly what you need. Charles allows you to sniff the packets sent through HTTP from your actual device, the way you use it is simple: Download and install Charles, run the program and specify

问题 When using Monitor.Wait(object obj) what should one use for the obj? In this article I'm reading on multithreading in .NET the author instantiates a new Object() to be used only as a monitor lock. Is this what you should do in practice, or is it more typical to Monitor the actual variable shared between two or more threads? 回答1: Yes, I normally lock on a new object created specially for that purpose. I also make sure that it is private and static and not a Type object. It's also important to

问题 I would like to disable the primary monitor on a Mac and then change secondary monitor to be the main programmatically. Any help on how I can do this? Not sure where to start my research. 回答1: To change the secondary monitor to be the main screen is quite straightforward. One need to set the origin 0,0 to the secondary display using CGConfigureDisplayOrigin() . A full sample can be found Here To the question how to disable the monitor, unfortunately I have no answer.I am trying to figure out

问题 I'm creating a 4096 x 4096 array of my class. When I'm profiling, it's showing that the most memory is used by char arrays. I don't have any char arrays or strings in my class. Here is my Java class: public class MyClass { private int id; private boolean flag; public MyClass() { id = 0; flag = false; } } And my Main class: public class Main { public static void main(String[] args) { MyClass[][] objects = new MyClass[4096][4096]; for (int i = 0;i<4096;i++) { for(int j = 0;j<4096;j++) { objects

问题 Given the following code GraphicsDevice screen = GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices()[0]; if (screen.isFullScreenSupported()) { //is it always true for monitors? } Is screen.isFullScreenSupported() always true for monitors? 回答1: No, it may not be true. The SecurityManager might disallow you the full screen control. Mainly because one could easily fake whole screen in order to grab a password from not-suspecting user (you could mock a bank website). It can be

问题 How to have a function in C# to run the window identification, which will show the numbers 1, 2, ... on the screen same way as we do it by right click on the screen (properties) then we go to Screen Resolution and show the numbers by clicking on Identify. Can we do that in C#? 回答1: Yes, look at the Screen class: http://msdn.microsoft.com/en-us/library/system.windows.forms.screen.aspx You can get a list of all screens through Screen.AllScreens. 回答2: Using the Screen.AllScreens Property does

问题 I need to get some of the values that are in the windows 7 resource monitor. In particular, the memory usage, cpu and bandwidth per process. I've looked into the PerformanceCounter class and I don't see a way to drill down to the process level. The resource monitor has exactly what I am looking for, and before you ask... I know this is re-inventing the wheel but the boss wants this. I looked into WMI as well and it seems most people recommend not using it. So does anyone know how I can get at

问题 I have a Windows message loop. I need to detect when the screen powers back up. Is there a windows message? detect power state change contains the C# way, I need the C++ way, using win32 API. If there isn't a Windows message, how do I poll for screen monitor power state? 回答1: There is a Windows message WM_POWERBROADCAST. There Windows API has a lot of support for power management. See the section on Windows Power Management at MSDN for the details. 回答2: For newer windows versions (starting