Solved

How can I get the value of specific environment variable?

Posted on 2001-08-23
3
228 Views
Last Modified: 2010-04-06
Hello,

I am new to Delphi. I have a question about the environment variable manipulation. I want to know how to define a global environment variable through the program, and how to retrieve the value from existing environment variable?

Many thanks,

ngpk





0
Comment
Question by:ngpk
  • 2
3 Comments
 

Expert Comment

by:d32coder
ID: 6420821
The TRegistry class gives you access to the system registry.

 var Reg: TRegistry; Str: String;

 Reg := TRegistry.Create;

  // set the Registry directory, I forget how
  // Reg.Open('/Variable Path/');
  // Note: HKEY CURRENTUSER is default
 if Reg.ValueExists('GlobalVar') then
  Str := Reg.ReadString('GlobalVar') else
    Str := '';
 ....
 Reg.WriteString('GlobalVar',Str);


 Reg.Free;



Hope this gets you in the right direction, you didn't say which var you are looking for.

Don
0
 
LVL 8

Accepted Solution

by:
TOndrej earned 10 total points
ID: 6420854
Have a look at GetEnvironmentStrings, GetEnvironmentVariable, SetEnvironmentVariable, FreeEnvironmentStrings APIs
0
 

Expert Comment

by:d32coder
ID: 6428685
Are those the variables such as ShortDateFormat?

Don
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

680 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question