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Chee Wee's discoveries and tech blog

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Chee Wee's discoveries and tech blog

TLB editor

Posted over 7 years ago

by chuacw

Just in case I forget in future, RAD Studio no longer allows editing a type library directly. What can be done is to use the tlbimp utility, like so: tlbimp...
Chee Wee's discoveries and tech blog

How to backup and restore with TWRP on Android

Posted over 7 years ago

by chuacw

Backup using TWRP, then execute the following on the Android device using the terminal spawned from TWRP. Ensure that the external SD card has more than...
Chee Wee's discoveries and tech blog

Notes regarding CSC codes

Posted over 7 years ago

by chuacw

The original CSC code is located in the file: /efs/imei/mps_code.dat The current CSC code is located in the file /system/csc/language.xml CSCs are located...
Chee Wee's discoveries and tech blog

Knowledge dump for Solidity and Javascript

Posted over 7 years ago

by chuacw

To get a Solidity contract's ABI, paste the contract into the Remix online Solidity compiler , click Compile, and click on Details. The ABI is then...
Chee Wee's discoveries and tech blog

CodeRage is coming!

Posted over 7 years ago

by chuacw

CodeRage is coming! Register now: https://register.gotowebinar.com/register/7990350396754529539
Chee Wee's discoveries and tech blog

How to get started with Solidity development and testing

Posted over 7 years ago

by chuacw

A quick primer to getting started with Solidity development and testing. Download these applications Atom editor Node.js Install Node and the Atom editor...
Chee Wee's discoveries and tech blog

Definitive list of affected Parity wallets and the actual ETH affected

Posted over 7 years ago

by chuacw

Recently, someone managed to kill the library upon which Parity multisig wallets rely upon, and as a result, all the Parity multisig wallets were unable...
Chee Wee's discoveries and tech blog

Removing custom contracts and tokens

Posted over 7 years ago

by chuacw

Here's how to remove custom contracts and tokens in Ethereum Wallet / Mist Open up the Wallet UI For tokens: run this command in the console: Tokens...
Chee Wee's discoveries and tech blog

How to install Ganache

Posted over 7 years ago

by chuacw

The latest Ethereum tool, is Ganache, an one-click Blockchain. It's distributed in appx format, which apparently, is only supported by Windows 10....
Chee Wee's discoveries and tech blog

Why you need to make your string parameter a const

Posted over 7 years ago

by chuacw

I have often wanted to point this out, but didn't really feel the need to, until today, when I was debugging into the RTL. When you have a string parameter...
Chee Wee's discoveries and tech blog

Persisting enumeration and sets to JSON

Posted over 7 years ago

by chuacw

I've created a demo on persisting enumeration and sets to JSON format. The default Delphi RTL persists enumeration as their names. The improvement...
Chee Wee's discoveries and tech blog

Automated clicking on HTML elements

Posted over 7 years ago

by chuacw

On a HTML page, elements can be retrieved either by using the getElementsByClassName or the getElementById method. The getElementById method returns just...
Chee Wee's discoveries and tech blog

Retrieving blocked attachments from Google with Delphi

Posted over 6 years ago

by chuacw

So, I was looking at an old email, and there was an attachment. Unfortunately, Google's Gmail had blocked the attachment, thinking it had a virus attached...
Chee Wee's discoveries and tech blog

How to write Truffle scripts to test your Solidity contracts automatically

Posted over 6 years ago

by chuacw

Every Truffle script is a Javascript app. So, if you're familiar with writing Javascript, you already know how to write a Truffle script. How do you...
Chee Wee's discoveries and tech blog

Something to ponder: using interfaces with class type variables

Posted over 6 years ago

by chuacw

One of the issues I've encountered recently is code like this: type ISomeIntf = interface procedure SomeMethod; end; TSomeClass = class(TInterfacedObject...
Chee Wee's discoveries and tech blog

The mechanics of an ICO - how to do a crowdsale

Posted over 6 years ago

by chuacw
- 0 Comments
How do you do a crowdsale, or raise an ICO? Get your whitepaper written and reviewed by a legal entity, such as the Blockchain Advisory Council , or the...
Chee Wee's discoveries and tech blog

Automatically renewing Let's Encrypt™ SSL and binding it to a web site

Posted over 6 years ago

by chuacw

Let's Encrypt ™ is a SSL certificate issuing authority that started around Jun 2015. It went into beta sometime around the last quarter of 2015...
Chee Wee's discoveries and tech blog

Reverse engineering the Web3 API

Posted over 6 years ago

by chuacw

I've been working on the Web3 API for quite a while now. The JSON RPC protocol is documented here and the Web3 API is documented here , however, there...
Chee Wee's discoveries and tech blog

Making your web browsing experience even more private!

Posted over 6 years ago

by chuacw

Cloudflare recently launched a faster way of looking up domain names , much faster than Google. In partnership with Cloudflare, Firefox added a new way...
Chee Wee's discoveries and tech blog

Site transition to SSL is completed!

Posted over 6 years ago

by chuacw

Over two and a half years ago, when Let's Encrypt launched their free SSL certificate services, I signed up to them, generating a SSL certificate for...
Chee Wee's discoveries and tech blog

Making your DNS queries private for your entire network

Posted over 6 years ago

by chuacw
- 0 Comments
In my previous post, " Making your web browsing experience even more private! ", I shared how to encrypt your DNS queries on the browser level...
Chee Wee's discoveries and tech blog

Learning Golang, aka Go

Posted over 6 years ago

by chuacw
- 0 Comments
I've been learning a new language, Golang, created by Google, also known as Go. I got fascinated by the language some time ago, and when I saw dnscrypt...
Chee Wee's discoveries and tech blog

Multithreading in C# and Delphi

Posted over 6 years ago

by chuacw
- 0 Comments
Even when you think you understand multithreading well enough, there's some games you'll find interesting. The Deadlock Empire are games in C#...
Chee Wee's discoveries and tech blog

Declaring and assigning variables in Go

Posted over 6 years ago

by chuacw
- 0 Comments
There's multiple ways of declaring a variable in Go. You can do this: var VarName TypeName So, for example, var s string declares a variable s with...
Chee Wee's discoveries and tech blog

Initializing structs in Go

Posted over 6 years ago

by chuacw
- 0 Comments
In Go, there are a few ways to initialize a new struct. You can do this: varStruct := &StructName{} varStruct := StructName{} varStruct := StructName...