How to detect system idle time
If you want to detect user inactivity even if your application is in background (has no focus), it’s really simple. You can achieve this using GetLastInputInfo function.
Directory structure with associated icons and file info in ListView
Using ShellAPI unit and few lines of code, we can load directory structure into ListView and show associated icons and information for each file.
Implementation of Delay procedure
Do you remember Delay procedure from Turbo (Borland) Pascal? It was used to pause the program “flow” for specific time interval. In Windows, there is a different style of programming,… Read more »
Online / offline status detection
There are few methods to check if computer is online (=connected) or offline (=disconnected). This one is really simple.
How to detect computer IP addresses
Using Winsock unit, we can determine computer IP address. If you have more network adapters, all IP addresses will be detected.
Taskbar position
For some applications, it’s important to know, where the taskbar is located. Of course, most users use standard “bottom of the screen” position, but of course, you can place it… Read more »
Just one instance of application
If want to allow users to run just one instance of application, one of possible methods is to use “mutext” (mutual exclusion).
Retrieve time since the system was started
This tip is very simple. Just use standard function GetTickCount and the rest is just elementary mathematics.
Determine CPU frequency
Here is just small piece of assembler code to determine CPU frequency in MHz.
Hide /show taskbar clock
Simple function to show and hide taskbar clock.