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Chee Wee's discoveries and tech blog

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Chee Wee's discoveries and tech blog

How the SCP protocol works

Posted over 5 years ago

by chuacw
- 0 Comments
Have you ever wondered how the scp and rcp commands worked? The first time I did I haven't found any documentation on the subject. There is no RFC...
Chee Wee's discoveries and tech blog

Enabling even more privacy in your web browsing experience using Encrypted Server Name Indication and DNS over HTTPS

Posted over 5 years ago

by chuacw
- 0 Comments
For those of us who always wanted to ensure privacy and security in our browsing experience, we always choose to browse web sites which can provide SSL...
Chee Wee's discoveries and tech blog

Building a language parser using ANTLR4 and ANTLRWorks 2

Posted over 11 years ago

by chuacw
- 0 Comments
First, get ANTLR4 and ANTLRWorks 2 from their respective sites: http://www.antlr.org/download.html and http://tunnelvisionlabs.com/products/demo/antlrworks...
Chee Wee's discoveries and tech blog

Further notes on loading an external JAR / APK in Delphi on Android

Posted over 10 years ago

by chuacw
- 2 Comments
In my previous post , I showed how it's possible to load an external JAR / APK on Android, in Java. In Delphi, even if you're able to convert a...
Chee Wee's discoveries and tech blog

How to get PAnsiChar to your string on Delphi for Android

Posted over 10 years ago

by chuacw
- 1 Comments
While working on the Android2DelphiImport tool, I had to get strings converted into the PAnsiChar format. A little known record, TMarshaller, in System...
Chee Wee's discoveries and tech blog

Speeding up web site hosting with Google Drive CDN

Posted over 10 years ago

by chuacw
- 0 Comments
There are plenty of ways to speed up web site hosting, and one of those is to host with a fast site that has a content delivery network (CDN) distributed...
Chee Wee's discoveries and tech blog

A customer's perspective and analysis of Singtel's questionable fibre broadband campaign

Posted over 10 years ago

by chuacw
- 0 Comments
I've been a customer of SingTel and SingNet since the beginning. I bought their SingNet internet services when it came out around 1995. The following...
Chee Wee's discoveries and tech blog

Windows Firewall, programmatically

Posted over 10 years ago

by chuacw
- 0 Comments
Few days ago, I began work on a Windows Firewall component in Delphi, and my work is currently up on Github . The name of the unit containing the Windows...
Chee Wee's discoveries and tech blog

Why optimization crashed the application I was working on...

Posted over 11 years ago

by chuacw
- 1 Comments
I was working on an application, that uses an external library, a DLL. After finishing on the debug version, I decided to try the release version, and...
Chee Wee's discoveries and tech blog

My personality is INTP. What's yours?

Posted over 10 years ago

by chuacw
- 0 Comments
The personality type of a person determines the type of people one is likely to enjoy interacting with, and it is also said that certain personality types...
Chee Wee's discoveries and tech blog

Some thoughts on the design and development of High Frequency Trading algorithms on SGX

Posted over 11 years ago

by chuacw
- 0 Comments
Some thoughts on the infrastructure, and what's needed to implement a software application that can perform HFT on SGX (or on any other stock market...
Chee Wee's discoveries and tech blog

Why your WIFI devices don't work with Aztech DSL1015EW(S)

Posted over 12 years ago

by chuacw
- 5 Comments
If you're using the Aztech DSL1015EW(S) router provided to you by Singtel, you might have noticed that your WIFI devices (that means your SMART TV...
Chee Wee's discoveries and tech blog

How did Oracle's Java unit get so sloppy?

Posted over 11 years ago

by chuacw
- 0 Comments
On a Windows 2008 R2 SP1 x64 machine, ensure that only Java 7 U21 is installed (jre-7u21-windows-x64.exe) and there are no other JREs lying around. After...
Chee Wee's discoveries and tech blog

Clearing the password for Aztech DSL1015EW

Posted over 12 years ago

by chuacw
- 4 Comments
Instead of the instructions below, you can use H3ll0t3ch when prompted for the Admin Password. Go to http://192.168.1.254 (or whatever address you have...
Chee Wee's discoveries and tech blog

Custom Asus RT-N56U firmware

Posted over 10 years ago

by chuacw
- 4 Comments
If you're using the Asus RT-N56U router, here's where you can download custom firmwares OpenWRT - Barrier Breaker Padavan I recently changed my...
Chee Wee's discoveries and tech blog

Delphi IDE BroadcastReceiver plug-in for Android

Posted over 10 years ago

by chuacw
- 1 Comments
I've recently completed the Delphi IDE BroadcastReceiver plug-in for Android. The BroadcastReceiver plug-in is part of the Android2DelphiImport product...
Chee Wee's discoveries and tech blog

JNI - the old way of doing it and the Delphi OO way

Posted over 11 years ago

by chuacw
- 1 Comments
In XE5, Embarcadero introduced a new object oriented way of calling into any Android API. Before looking at it, let's look at the old way of doing...
Chee Wee's discoveries and tech blog

Examples of known blockchain attacks #3: Parity Wallet hack

Posted over 3 years ago

by chuacw
- 0 Comments
The Parity Wallet hack was an attack performed on 19 Jul 2017, on the 2 Ethereum smart contracts deployed by Parity Techologies . The first Parity smart...
Chee Wee's discoveries and tech blog

Displaying a modal dialog on the Android

Posted over 16 years ago

by chuacw
- 0 Comments
After clicking a button, displaying a modal dialog on the Android is easy, by using the classes android.app.AlertDialog and its helper, android.app.AlertDialog...
Chee Wee's discoveries and tech blog

Delphi app with console and GUI

Posted over 9 years ago

by chuacw
- 0 Comments
I was looking at the Stackoverflow question - Program both as Console and GUI and noted that there wasn't an example for Delphi, so I created the following...
Chee Wee's discoveries and tech blog

Getting the files directory on Android with Delphi XE5

Posted over 11 years ago

by chuacw
- 1 Comments
There's a unit in XE5 that deals with getting all kinds of directories on Android, and it's called Androidapi.IOUtils. Here's what you can...
Chee Wee's discoveries and tech blog

A basic Delphi IEnumerable<T> and IEnumerator<T> example

Posted over 11 years ago

by chuacw
- 0 Comments
Working on some coding last night, and would like to point out and remind myself how to implement IEnumerable<T> properly. When implementing IEnumerable<T>...
Chee Wee's discoveries and tech blog

Remounting Android rootfs

Posted over 13 years ago

by chuacw
- 3 Comments
Making the rootfs and /system writeable mount -o rw,remount -t rootfs rootfs / mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system Making the rootfs...
Chee Wee's discoveries and tech blog

Removing the unlock pin on Note 4

Posted over 8 years ago

by chuacw
- 0 Comments
After restoring a backup on Note 4, I'm locked out of it via a pin. When using the pin that I remembered I set, it didn't work. So, I'm left...
Chee Wee's discoveries and tech blog

Undocumented Delphi record alignment directive

Posted over 10 years ago

by chuacw
- 0 Comments
In Delphi XE5 This appears to have been introduced in Delphi XE, not XE5. , the align directive was introduced, and is undocumented. The new directive...