Chau Chee Yang Technical Blog

Background Delphi project file consist of only one file (.dpk) before Delphi 2006.  Beginning of Delphi 2006, MSBUILD (similar to ANT) is ...

Most machine nowadays has built-in USB 2.0 hi speed port and able to boot from USB flash drive . But not all machine has CD/DVD-ROM. The f...

Redhat or Fedora using RPM to manage package installation. RPM will report package dependencies if the installation failed. However, I fou...

A router need at least 2 network interfaces. The following example using 2 network interfaces, eth0 and eth1 as example. eth0 is external...

We may use windows GDI function AlphaBlend to draw translucent graphic. The following example extract a portion of desktop image and draw t...

Using Delphi command lines compiler DCC32 to compile programs allow us to set some switches to get various kind of output. The most common ...

Windows has some special folders like My Documents, SendTo, Desktop or Favorites. The location of this folders are keep in the following reg...

We may consume the Google API to post entry of event kind. Those entry are mostly encoded in XML content. It is a common habit for windows...

Indy VCL 10 distribution supports SSL via OpenSSL but it didn't bundle the DLL library. We have to download the Win32 OpenDDL from her...

We may make a form without borders to show some additional information using some popup windows. However, a borderless form will no longer ...

We usually use mouse to drag the windows form title bar to move the window on our desktop. There is a new way to move the form by just drag...

TListBox is a simple visual component that always use for display a list of items but it has some nice features that we always neglected. U...

When we use /usr/sbin/useradd to create a user, it's home directory may contain some default files or folders (it is hidden usually). H...

If we want to change background color of a form: we usually do like this: Form1.Color := clYellow; However, if a Form's FormStyle i...

There is only one way to prevent creation of ~BPL in Delphi 2007 IDE: patch delphicoreide100.bpl in C:\Program Files\CodeGear\RAD Studio\5.0...

Due to I/O redirector problem in GBAK.EXE ( http://tech.groups.yahoo.com/group/firebird-support/message/90995 ), I download Firebird source...

We may easily embed a Delphi GUI control into another container control like TForm or TPanel: var F: TForm; B: TButton; begin F := TForm....

Using Local Protocol to connect to Firebird database no longer works in Windows Vista when we install firebird server using setup file's...

Typical DOS application that may perform great function are GREP, MORE, SORT. These functions chain together via command redirection operat...

Here is the code to scroll TMemo control to bottom at runtime: var M: TWMVScroll; begin M.Msg := WM_VSCROLL; M.ScrollCode := SB_BOTTOM; ...