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Mastering Development

How to get the OpenCV image from Python and use it in C++ in pybind11?

I’m trying to figure out how it is possible to receive an OpenCV image from a python in C++. I’m trying to send a callback function, from C++ to my Python module, and then when I call a specific python method in my C++ app, I can access the needed image. Before I add more […]

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Mastering Development

Encrypt with CryptoJS in JavaScript gives me different results from Java encryption

I am trying to replicate with CryptoJS an encryption done in Java using another library. The encryption’s result in Java is [111,60,-98,107,-60,5,-17,91,-52,60,-105,64,-88,31,97,-102,118,-39,-28,3,70,-12,21,-69,70,-22,-12,-91,102,-21,-88,5,82,-66,-122,34,14,-115,7,82,-55,38,-90,74,-4,62,104,104,61,-78,57,59,-51,31,84,-115,-45,-98,-87,-11,53,98,45,2,-52] and I know that this is the correct payload. So, I am replicating the same encryption with the same values but I don’t get the same array of bytes. The steps are: I […]

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CMS Development Magento

“Could not receive Stock Item data” Line Appear Instead of Admin Product Grid – Magento 2

“Could not receive Stock Item data” line appear instead of product grid in admin side. I have recently imported other db to my Cloud local setup. When I am doing indexing,I am getting error like this. SQLSTATE[HY000]: General error: 1449 The user specified as a definer (”@’%’) do es not exist, query was: DELETE price_index […]

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Cryptocurrency Development Ethereum

Decoding call inputs

Using a smart contract’s ABI and the input data from a transaction on Etherscan, I am able to decode the input data using this tool: https://lab.miguelmota.com/ethereum-input-data-decoder/example/ Output { “method”: “execute”, “types”: [ “address”, “bytes” ], “inputs”: [ “c5cc1dfb64a62b9c7bb6cbf53c2a579e2856bf92”, { “type”: “Buffer”, “data”: [ 159, 108, 61, 189, 0, 0, 0, 0, 0, 0, 0, 0, […]

Categories
Cryptocurrency Development Ethereum

Decoding call inputs

Using a smart contract’s ABI and the input data from a transaction on Etherscan, I am able to decode the input data using this tool: https://lab.miguelmota.com/ethereum-input-data-decoder/example/ Output { “method”: “execute”, “types”: [ “address”, “bytes” ], “inputs”: [ “c5cc1dfb64a62b9c7bb6cbf53c2a579e2856bf92”, { “type”: “Buffer”, “data”: [ 159, 108, 61, 189, 0, 0, 0, 0, 0, 0, 0, 0, […]

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Development

Two-Way Repeated Measures ANOVA: Error in lm.fit()… 0 non-na cases (rstatix)

I am trying to run a Two-Way Repeated Measures ANOVA using the R Statix package based on the description from here however I am running into the subject error with my dataset. The data consist of 10 replicate biomass measurements recorded at each of 8 Locations across 5 months (10 reps x 8 locations x […]

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Development System & Network

smartctl on Linux, does not report certain S.M.A.R.T. values

I am hearing occassional (1/hour) clicking or switching sound (“tic-tic” and not “tic”) from my computer and try to investigate the health of the hard-drives first (mechanical WDC, 4 years old). I am running smartctl -A /dev/sda on Fedora Linux (30, updated recently). But in its report I can’t see the following S.M.A.R.T. values: 187 […]

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Development

Web Crypto API throws `DOMException` on AES decryption

window.crypto.subtle.decrypt of Web Crypto API throws DOMException (and no more information) when I use it. What is it the problem? The key and encrypted data is OK, I have checked it in an online decryption (use the hex string from the console output). The code: !async function script() { // ArrayBuffer to Hex String. https://stackoverflow.com/a/40031979/11468937 […]

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Development

Calculate the textbox value based on the value of combobox ? ( wpf )

I have a small program, because I’m new, my program is to bring data from sql sever to textbox via combobox option and use the value shown in that textbox to calculate the + I have made it to the step of putting up the data, now thanks to you to help me with the […]

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Development

Formatting for decryption of binary data Crypto-js

I’m trying to decode a message contained within a protocol buffer using CryptoJS. I can verify that the encrypted message is received exactly as sent, so the protocol buffers are behaving properly. I’ve set up a basic test that I know works as a benchmark: console.log(‘******************************************************************’); var iv_hexString = this.buf2hex([146, 66, 191, 151, 23, 3, […]