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How to find Time Zone information on current system ?
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| Total Hit (3282) |
The following code will extract the timezone information from your system. It includes three functions. One returns the current date/time in UTC (or ZULU or GMT) time, the next returns the offset of your time zone from GMT in minutes (divide by 60 to get hours), and the last returns the name of the
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How to list all available timezones and change the timezone?
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| Total Hit (6657) |
It is sometimes necessary to programmatically change the time zone for the system where the application is running. This article demonstrates this technique.
The way to implement this effect is as follows:
Determine which time zone you would like to change to.
Find the key in the registry tha
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Check Access Rights to File/Directory on NTFS Volume
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| Total Hit (6684) |
Windows NT/2000/XP has API function AccessCheck, which in fact checks access rights to every operating system object, which supports access rights. This function is called implicitly by system every time user accesses such object. To call AccessCheck function explicitly it is necessary to carry out
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How to retrive and change system's short/long date format
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| Total Hit (7786) |
This article will demonstrate how to retrive system's local name and short/long date format. It will also show you how to change current short/long date format of the system.
To implement Copy/Paste Demo
- Create a standard exe project
- Add a module
- Place 3 labels on the form1 (to diaplay
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How To Print Using Custom Page Sizes on Windows NT and Windows 2000
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| Total Hit (6562) |
Have you ever tried to set custom paper size using VB inbuilt Printer object ??? You can set custom papersize by setting Printer.PaperSize = 256 and then Printer.Height = 4500 , Printer.Width = 7500 but unfortunately this wont work under NT/2000 because in NT each paper size is considered as a "Form
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How to Autosize ListView columns ?
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| Total Hit (10248) |
This demo will show you how to auto fit all ListView items.
«b»Step-By-Step Example«/b»
- Create a standard exe project
- Add ListView control on the form1. To add ListView control you need to add reference to Microsoft Windows Common Control 5.0 (Click Project->Components)
- Place the follo
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How to get information of all installed IP's on current system.
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| Total Hit (3398) |
This article will show you how to get all installed IP addresses and subnet mask on your system.
To implement quick demo perform the following steps
- Create a standard exe project
- Add a module
- Add 1 command button and 1 text box with MultiLine=True
Place the following code in Form1 d
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How to monitor Printer Queue using printer API
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| Total Hit (19430) |
This article will show you how you can use OpenPrinter, EnumJobs and ClosePrinter API to monitor selected printer's queue.
To implement Quick Demo perform the following steps
- Create a standard exe project
- Add module1
- Place 1 commandbutton, 1 textbox, 1 combobox 1 timer and 1 ListView
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How to display different control panel applets
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| Total Hit (3234) |
«code LangId=1»' Display the Control Panel
Call Shell("rundll32.exe shell32.dll,Control_RunDLL", vbNormalFocus)
'Display the Accessibility Properties
Call Shell("rundll32.exe shell32.dll,Control_RunDLL access.cpl", vbNormalFocus)
'Display Add/Remove Programs
Call Shell("rundll32.exe shell32
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How to Add/Delete Printer Programatically using API?
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| Total Hit (28778) |
This article will show you step by step approch to Add and Delete Printer Programatically without any user interaction.
When writing a Win32 application that installs a network printer connection, you must take into consideration differences in printing if the application will be run under both W
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How can I print a preformated file directly to printer?
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| Total Hit (2618) |
«b»Step-By-Step Example«/b»
1. On a Microsoft NT 4.0 system, add a printer with a name that contains a space.
2. Create a text file in the C:\ folder, for example, test.txt.
3. Start a new Standard EXE project in Visual Basic. Form1 is created by default.
4. From the Project menu, select Refer
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How to display balloon style tooltip (Updated)
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| Total Hit (16534) |
Using api you can create ballon style tooltip. You can also set varous parameter for tooltip i.e. Delay time, Style, Color, font etc...
I have used IFont to get font handle from StdFont but IFont may create problem sometimes. Check the following article to convert StdFont to APIFont
«a href='h
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Working with AVI Files - Part 1 (Opening and Closing AVI file)
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| Total Hit (21859) |
This series of articles will show you step by step approach for working with AVI files in VB using Win32 API. In this article series we will go through following tutorials.
Other articles in this series
«b»«a href='CodeDetail.aspx?CodeId=3612'»Working with AVI Files - Part 1 (Opening and Closi
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Working with AVI Files - Part 2 (Working with AVI streams)
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| Total Hit (16594) |
In previous Article «b»«a href='CodeDetail.aspx?Codeid=3612'»Working with AVI Files - Part 1 (Opening and Closing AVI file)«/a»«/b» We learned how to open and close AVI File. We also learned How to read AVI file information using AVIFileInfo api. In this article we will go one step further. Today we
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Get IP from Host Name.
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| Total Hit (3956) |
This example will show you how to get IP address from host name and also How to retrive all associated IPs to your local machine.
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Use CopyMemory api for performance.
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| Total Hit (4449) |
This article will demonstrate that how CopyMemory can boost the performance of for some simple operations (e.g string append.). Here we will banchmark VB Mid function vs CopyMemory Api.
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How to install/uninstall Printer Driver programatically ?
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| Total Hit (5508) |
This article will show you how to install/uninstall Printer Driver without any user interaction.
«b»Step-By-Step Example«/b»
- Create a standard exe project
- Copy and Paster the following code in form code window
- Make sure you modify various parameter according to your requirement.
«c
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How to take ownership of a file/folder ?
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| Total Hit (14964) |
This sample article will show you how to get owner of a file/folder and how to take ownership of a file/folder?
«b»Step-By-Step Example«/b»
- Create a standard exe project
- Add one module
- Add one textbox and one command button on the form1
- Add one ListView control on the form1. To add
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How to display Advanced document property of a selected printer ?
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| Total Hit (3542) |
This demo will show you how to use AdvancedDocumentProperties function to displays a printer-configuration dialog box for the specified printer, allowing the user to configure that printer.
«b»Step-By-Step Example«/b»
- Create a standard exe project
- Place following code in form1 code windo
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How to check whether your program is running on Windows NT/2000 ?
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| Total Hit (2051) |
This simple code will tell you whether your program is running on NT/2000 platform or Win9x/ME.
«b»Step-By-Step Example«/b»
- Create a standard exe project
- Add the following code in the form1 code window
«b»Form1.frm«/b»
«code LangId=1»' Types, constants and functions for OS version d
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How to bring window to the front in Windows 2000/ME ?
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| Total Hit (4332) |
Have you ever tried to use SetForegroundWindow function in Windows 2000/ME ? In windows 9x its very easy to set foreground window, just pass window handle to SetForegroundWindow and done... But in Windows 2000 and ME microsoft has changed the process for setting foreground window. In windows 2000 an
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279815 - How To Validate User Credentials from Visual Basic by ...
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| Total Hit (2918) |
A user's credentials are made up of his or her user name and password, which can be used to validate the user on a given Microsoft Windows NT, Microsoft Windows 2000, or Microsoft Windows XP domain. This article demonstrates how to call the Security Support Provider Interface (SSPI) functions from M
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