Fast, Pixel Precision 2D Drawing API for Graphics App?

I woud like to create a cross-platform drawing program. The one requirement for writing my app is that I have pixel level precision over the canvas. For instance, I want to write my own line...

SQLite error 'attempt to write a readonly database' during insert?

I have a SQLite database that I am using for a website. The problem is that when I try to INSERT INTO it, I get a PDOException SQLSTATE[HY000]: General error: 8 attempt to write a readonly...

Letter Count Dictionary

My homework problem is to write a Python function called LetterCount() which takes a string as an argument and returns a dictionary of letter counts. However, my code includes white space and...

Css Displaying only center part of image

Is it possible to display only center part of of image. For eg an image height =300 px and width=520px using CSS or JQUERY css would be better if possible else i can use Jquery, Googling didnt...

com.apple.mobile.installation.plist for iPhone 4

// Declaration BOOL APCheckIfAppInstalled(NSString *bundleIdentifier); // Bundle identifier (eg. com.apple.mobilesafari) used to track apps // Implementation BOOL APCheckIfAppInstalled(NSString...

update data from multiple excel sheet

I have problem on how to update data from multiple Excel sheets to one column in the master sheet. Whenever we enter a new row, I want it to automatically update in the master sheet. The value is...

How to create cronjob in windows 7?

I want to create a counter for my website. It must be able to connect with my database every 24 hours, and show me the sum of Column "eure". This is my code but it doesn't work very well. In my...

Conditional find & replace

Today I am stuck with this code while trying to replace a dot (.) but only if in the list from sheet1 does not match one of the values from another list of another sheet (same workbook). "Argument...

python "TypeError: 'numpy.float64' object cannot be interpreted as an integer"

import numpy as np for i in range(len(x)): if (np.floor(N[i]/2)==N[i]/2): for j in range(N[i]/2): pxd[i,j]=x[i]-(delta*j)*np.sin(s[i]*np.pi/180) ...

Unable to format SD-card

I've got a 16G SD-card. The SD-card was working great with my Raspberry PI and contained Rasbian OS. However, when I attempted to format the SD-card in order to swap the OS for another one I got...

What is wrong with my execvp usage?

I'm writing a small shell to learn C. Now I want to execute custom commands but it is not working. $ ./a.out OS>ls 10357: executing ls failed to execute ls : (2: No such file or directory) I...

ConvertTo-Secure String Error

I'm receiving the following error in my create user script. ConvertTo-SecureString : Cannot bind argument to parameter 'String' because it is an empty string. At...

GeoFire Won't Stop Pulling Data

For some reason when I use GeoFire to pull events it never seems to stop pulling events. I noticed when I left my computer for a little and came back and my array had 1000 elements in it. static...

IIS Express Visual Studio - Cannot debug localhost

Been trying to resolve this issue for a few days now. I've done a ton of searching and tried several solutions - nothing has helped thus far. I have a Visual Studio 2017 project. It has been...

BubbleSort with recursion in Python3 - Returning "None"

I created a small function to do BubbleSort (just learning how to code) in Python 3 and I can't find the issue. Here is the code. It's returning "None" for some reason. Could someone please take a...

Filling an order form in google sheets via telegram-bot and google-apps-script

I am trying to fill an order form in google sheets via telegram-bot. After user typed name of order form (eg. "Sheet1") I want to send user items from order form one item at a time and fill...

How to detect a pangram

A pangram is a sentence that contains every single letter of the alphabet at least once. Here is my code so far: const isPangram = (string) => { let alpha = string.toUpperCase().split(""); ...

Practical use case of DeveloperMetadata in GAS

I recently found published new Classes and methods of Spreadsheet related to DeveloperMetadata, and I am seeking code examples showing practical use of such data structures. I have tried to grasp...

Can't catch my IP Camera stream URL but other IP Camera stream URLs works

I am using the below code successfully to stream the URL of a public IP web camera. Now, I have set up my own IP Camera and I am now trying to catch this feed but are not successfull. I am not...

How to create missing volume tag in lambda python

I am trying to create a tag on an Amazon EBS Volume, but only if the tag doesn't exist. Everything else is working on my code but this part is somehow not working. I want this Lambda function to...

Flutter : Could not find a generator for route RouteSettings("/HomePage", null) in the _WidgetsAppState

I'm using below in my demo project for routes routes: <String, WidgetBuilder>{ '/HomePage': (BuildContext context) => HomePage() }, And trying to navigate home screen using below...

Word Cloud: Code shows no error but displaying wordcloud raises name error

Here are all the installation and imports: !pip install wordcloud !pip install fileupload !pip install ipywidgets !jupyter nbextension install --py --user fileupload !jupyter nbextension enable...

VBA For Each Loop to Excel JavaScript API Code

In the following VBA code, I debug.print each cell value. Using the data in the picture, my answer appears like this. Sub loopAndDebugPrintEachCell() Dim cl As Object With Sheets("Sheet1") ...

KeyError when enumerating over dataloader - why?

I am writing a binary classification model that consists of audio files of 40 participants and classifies them according to whether they have a speech disorder or not. The audio files have been...

AcquireTokenByAuthorizationCode throw new exception in single tenant application using ASP.NET MVC using Azure Active Directory

I tried this tutorial because I want to use the Microsoft Graph API to create massive teams in Microsoft Teams. The only difference with the tutorial is that I used the next choice in...

Why does npm start give me "Error: Cannot find module './keywords'"?

Tried to use npm start with Create React App to launch my react application, but got this error: node:internal/modules/cjs/loader:943 throw err; ^ Error: Cannot find module...

CUDA error: device-side assert triggered on Colab

I am trying to initialize a tensor on Google Colab with GPU enabled. device = torch.device('cuda' if torch.cuda.is_available() else 'cpu') t = torch.tensor([1,2], device=device) But I am getting...

failed calling webhook "vingress.elbv2.k8s.aws"

I installed aws-load-balancer-controller on new EKS cluster (version v1.21.5-eks-bc4871b). I installed by this guide...

Decrypt SSL/TLS with specific Private Key via SCAPY

I want to decrypt HTTPS traffic for my domain on my server with scapy. Then I have the original international registered certificate (TLS1.3) files for my domain... And it must be so much easy to...

Implementation of forward chaining in prolog (SWI-Prolog)

I would like to implement forward-chaining reasoning in Prolog. I made up a simple KB of facts and some rules, from which I should be able to get the fact green(fritz). I tried to implement it but...