Latest Questions

Can't display OpenCV VideoCapture in Qt

I want to display the content of my VideoCapture in a QGraphicsView, however if I run the Program my WebCam activates, but nothing is displayed onto my Graphics

Executing command on Plink command line fails with "not found"

Goal: connect to AntMiner via SSH, and send poweroff command. command: plink.exe -v -t -ssh antminer -l root -pw xxx poweroff Connecting to 10.0.1.11 port 22

Is it possible to replace a value in a json string that occurs multiple times only at the top level of the structure via regex?

Hiho, I have a json string with the following structure: { "version": "1.0.0", "dependencies": { "version": "1.0.0" } } It can also look like th

Can a C# object "kill" itself?

In C#, can an object method invoke the object's own d-tor? and making any reference to the object invalid? I'm trying to build an "object control" in memory sys

Weird behavior of object references, "ghost" object

I was messing around with some sample code to check if I understood how objects behave when referring to one another when I stumbled upon this situation: public

PostgreSQL restoration throwing error : replication slot does not exist

Environment: Postgresql 13.x (dockerized) I was trying to test the DR setup for PostgreSQL nodes. pg_basebackup and wal_files archive was taken from the standby

slicing with .loc in pandas

I was reading the book - "Python for Data Analysis" and doing code side-by-side on Jupiter notebook. Here is my DataFrame named data : one t

How to pagination data to optional parameters

I'm Using react-bootstrap-table-next pagination module, In that I am using sizeperpage How do I pass sizeperpage data to the params. code excuted: <Bootstra

In SOClass, how to prevent an Operation from completing from the client side?

Sometimes in your client code, you want to cancel the current operation or prevent it from completing. How can you do that?

Jetpack Compose structure

I have a question Now, for example, in the old days, we had different activities, we had different fragments The code was divided into different files For examp

Module not found: Error: Can't resolve 'trusted-types' in '' angular

getting Module not found: Error: Can't resolve 'trusted-types' installed trusted types using this command npm i @types/trusted-types --force. and npm install t

Angular module federation on azure app service

I’m creating a website with webpack federation module. For this I have 3 projects out of 3 different git repos. So I have 3 here in azure devops. My quest

How to call a non-class function from a class method?

I'm trying to call the sh method from FileUtils. class A def self.method sh('echo hello') end end def function sh('echo hello') end function # this

ElectronJS: Window always-on-bottom (inverse of top-most / widget)

I am currently creating a system monitor application for which I would like it to work as a widget. Please see example of my application below: ElectronJS syste

Python, Convert Arbitrary List of Floats to Decimals with Most Precision without Rounding Errors

I'm writing code that has to take a bunch of floats in Python and convert them to decimals without any rounding errors but with as much precision as possible. I

Cannot access a directive before initialization. Reference error

I have an Angular module with a static function called forRoot() that receives an object as a parameter and a service with a parameter in the constructor called

Pulling another dev's PR to my local machine

A dev on my team made a PR to merge his changes from his branch to our "develop" branch. I want to run his changes to our code on my machine, since I have to wr

How do I resolve InflateException: Binary XML file line problem?

I'm going to inflate the recycler view in the home fragment using the Navigation component. There are two problems here. InflateException Issues Only one first

Flutter formkey exception displayed _CastError (Null check operator used on a null value)

I have created a form by wrapping a column widget in Form() as so Form( key: formKey, child: Column( children: [ But when I try to set fina

PostgreSQL year, quarter calculator

Given a year and a quarter, a procedure should INSERT values into table tb_quarter, which is empty and have this structure: CREATE TABLE erp.tb_quarter (

Limit OAuth scopes Firebase requests from Facebook login in Flutter

I am using Firebase Facebook social login for my Flutter app. When it is launching login window for Facebook, it has a label where it is displaying login with e

VBA script Not Copying Data - Inserting #REF

I have 1 workbook with multiple sheets and I am running into an issue copying over data from one sheet to another. Sheets - "ALL CONTACTS" & "MAA DATA" Ther

Bloom, Cuckoo filters are too big for numbers

I'm trying to use bloom/cuckoo filter to check if i already stored a tuple of 2 numbers f.e. (7,25), (47,1576), ... etc In [12]: from cuckoo.filter import Scala

Filter is not a function using React UseEffect of a data from MongoDB

I am working on a MERN ecommerce stack application. I have an API that returns all the Products I have from my MongoDB. I have attached a console log of the pro

infinite laught Lulu (infinite press: ctrl+3 while i play)

Is it possible to create a program that press infinite ctrl+3, together with me pressing other keys? I play lol and i like to laught (press ctrl+3) while i play

Specifying column with multiple datatypes in Spark Schema

I am trying to create schema to parse json into spark dataframe I have column value in json which could be either struct or string "value": { "entity-type":

Trying to hide django secret key, but getting error when deploying in PythonAnywhere

I'm trying to deploy a django project. I hid the secret key putting it in a file called .env and added it to .gitignore, so I have django's secret key only loca

C# WPF window resize is blocking NAudio WaveIn / WaveOut stream

I´m using NAudio and WPF to develop a mixer software in C#. But I have faced with a non commum behaivour: the output is playing normally, but when I resiz

Dash use html.button for export csv with filter

i'm quite new in dash. I try to create a simple dash with a filter, and an export button. My data are simple: I have two Bank, with two app (one Android, one Ap

SMOTE_NC function in R: error in the ouput

thank you in advance for your time! I'm having some trouble with the SMOTE_NC function in R (https://rdrr.io/github/dongyuanwu/RSBID/man/SMOTE_NC.html). Shortly