4,190 questions
0
votes
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17
views
Method for attributing App Store Purchases?
How can I attribute App Store installs to Points of Purchase?
For example, I will have a map app that a visitor center may display a poster with a QR Code for patrons to purchase the app. I need to be ...
- 6,692
-3
votes
0
answers
36
views
Can't generate a proper qr [closed]
import matplotlib
import numpy as np
import matplotlib.pyplot as plt
from dataclasses import dataclass
from pandas import read_csv
from masking import Masking
@dataclass
class LeftTopFinderPattern:
...
0
votes
0
answers
24
views
How to connect the webcam in Unity scene (Sentis YOLO integration)
I’m working on a Unity project that uses the new Unity Sentis package to run YOLO object detection on either a video/image file, or webcam input. I’ve got it working perfectly with a video using the ...
0
votes
2
answers
58
views
Unity QR scanning app for Hololens 2 doen't detect QR code
im working on a project and i need to make an app for hololens 2 that can scan the QR codes directly, im not familliar with this AR development thing so i tried to use the example from microsoft (...
- 11
0
votes
0
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51
views
What is the correct way to encode vCard data for QR codes (with line breaks in notes field)?
I'm trying to generate a QR code that contains contact information in vCard format with a multi-line note field. The QR code can be scanned by android and apple devices and the user can create a ...
- 344
0
votes
0
answers
31
views
How to generate raast payment dynamic qr code?
I am developing a billing system where I need to generate a Raast payment QR code that includes a dynamic price and bill ID. The goal is for users to scan the QR code, pay the specified amount, and ...
1
vote
1
answer
63
views
Why can I not encode ScalaPB `toProtoString` into a QR code and decode it again?
Background:
I have a protobuf object called RegistrationInfo, defined as such:
message RegistrationInfo {
string serverID = 1;
string serverIP = 2;
string alias = 3;
string rootCA = 4;
}
In ...
- 879
0
votes
1
answer
142
views
ZXing QR-code scanner to automatically choose the camera based on distance from objective
HTML:
<zxing-scanner
[device]="selectedDevice"
(scanSuccess)="onQrCodeScanComplete($event)"
style="width: 100%; max-height: 50vh;">
</zxing-scanner&...
0
votes
0
answers
47
views
QR scanner on angular project not choosing the right camera
I've got this QR scanner on my component and it works, but has a problem: in some devices (mostly devices with 3 or more cameras like iPhone Pro) it doesn't get the camera for short distances (the one ...
0
votes
0
answers
51
views
PowerApps/Flows Inconsistencies with Scanning QR Codes
At my company, I've setup an inventory tracking app. All the items in inventory have an associated QR code that just translates to the item's plain-English name, or the "Title" of the item. ...
0
votes
1
answer
115
views
Decoding QrCodes with Camera in Maui Blazor Hybrid
I need help with my .NET Maui Blazor Hybrid project. What I am trying to do is the following:
Each user page has a generated QR code that holds a part of the endpoint address
There are 2 types of ...
1
vote
0
answers
61
views
detect when android device is connected to a qr scanner device
I'm developing a feature on Tablet to detect whenever user connect to a QR scanner device - for example: BC-NL3000UⅡ. So far, I'm using broadcast receiver to detect whenever USB_STATE changes which ...
5
votes
2
answers
69
views
How do I decode a bit string representing a n-digit number, where the 'n' digits were grouped and encoded in bit words of different lengths?
Background
I am trying to decode a bitstring from a QR-Code, where the data was encoded in numeric mode. According to this QR-Code tutorial: https://www.thonky.com/qr-code-tutorial/numeric-mode-...
0
votes
0
answers
74
views
How to detect a data matrix/qr code like pattern without the locator information?
I would like to detect the pattern in a 2D image, which is similar to a data matrix or a qr code, but without the locator/timing information.
Here is an example image (which is a part of a data matrix)...
- 191
0
votes
1
answer
255
views
Expo Camera Shows Black Screen in Development Build and APK While Scanning QR Codes
import { CameraView, CameraType, useCameraPermissions } from "expo-camera";
import { useState } from "react";
import { Button, StyleSheet, Text, TouchableOpacity, View } from "...
