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Windows 9x User defined global variable

I need to create user variables in Windows memory to which i have to store some values.Then, that variable should be accessed or modified by other programs.
ex. 1)Application A is running and keep on changing the Windows Global Variable X,Y,Z
    2)Application B is running and keep on changing the Windows Global Variable X,Y,Z
    3)Application c is running and keep on changing the Windows Global Variable X,Y
Here, Application A,Application B,Application C are independent applications.
How to achieve this? [How to create the Varriable and How to modify the varriable]


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veeramani
Asked:
veeramani
1 Solution
 
simonetCommented:
Why not use a Registry key instead? It's much easier than dealing with shared memory (mapped memory), and the like.

By using the Registry, with just a few lines you're able to read/write a variable. Besides, Delphi provides built-in support (TRegIniFile and TRegistry) to easily handle the Registry.

Alex
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MadshiCommented:
Alex is right. The registry is the most convenient way of doing stuff like that.
But if you want to go the "official" way, you should use CreateFileMapping(-1, ...) & MapViewOfFile. I think there was a component here:

http://www.jgsoftware.com/nt.htm

But if I remember right, the component had one or two minor bugs.

Regards, Madshi.
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msediCommented:
Hello,
maybe you can use Atoms to achieve this.
Just convert the values into string values and reconvert them after access into the specified value. The functions are GlobalAddAtom, FindAtom,...

Good luck,
Martin
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veeramaniAuthor Commented:
Thanks Martin. I got the solution from your clu, thanks a lot.
veeramani
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