VB 6.0 - System Information Related Samples
Change the Screen Resolution
Change the screen resolution from VB using the EnumDisplaySettings
and ChangeDisplaySettings APIs.
Code Based Timers
Create a code based timer that's more accurate
with better resolution than VB's Timer control. The timer resides in an ActiveX
DLL and doesn't need to be sited on a form. You can use it in applications that
run unattended and that have no visual interface. Also make counting
timers and timers that callback your app when they trigger.
Create Your Own Screen Saver or Start an Existing Screen
Saver
Develop fancy screen savers with VB. Mine shows a number of animated images,
called sprites, moving around the screen glancing
off its edges and ricocheting off each other. The screen saver is fully
customizable, allows password protection, and runs in the screen saver preview
window.
Determining Memory Statistics and System Resources
Retrieve the current state of the system's memory using the GlobalMemoryStatus
function. On Windows 9x machines you can determine the system resource values
displayed in Explorer's Help About dialog by using the Resource
Meter's Rsrc32.dll. Use this info to determine to if there are
enough reources to safely start your application.
Disable Ctrl-Alt-Delete, Alt-Tab and Ctrl-Esc Key
Sequences
Prevent users from rebooting a PC by telling Windows the screen saver is
running. Stop Ctrl-Esc and the Windows
key from displaying the Start Menu.
Shut Down/Restart Windows
Shut down and Restart Windows via the ExitWindowsEx
API. On WinNT and Win2K you can shut down windows after giving your application
sufficient privilege to do so.
System Metrics Information
The GetSystemMetrics function returns a wealth of
information including the width and height of the screen,
window, icon, border, caption, scroll bar elements and more.
System Parameters Information
The SystemParametersInfo function queries
systemwide parameters and provides information about the mouse,
keyboard, desktop, icons size, screen saver,... This example also
demonstrates how to get the Window's version using
GetVersionEx.
Add Your Application's Icon to the System Tray
Add your application's icon to the System Tray and respond to mouse events
occurring on your system tray icon. Work with ActiveX components from the system
tray. Normally this is not possible due to the way Windows handles
Remote Procedure Calls.
Locale Aware Date Format
Get the Locale specific Date and Number formats. If your regional settings are
set to German, the standard date looks like "dd.mm.yy". Convert to the proper
date format based on the locale.
List and Change Window's Date Formats
Enumerate all Long and Short
Date formats currently defined on your system. Create new ones and
change them on the fly!
Synchronize Your System's Time With an NTP Server
Retrieve the time from a public Network Time Protocol (NTP) server via the
Winsock control then use it set your PC's time.
Create a System DSN
Programmatically create a system Data Source Name.
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