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Private vars
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To
01/06/2001 09:38:25
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Title:
Miscellaneous
Thread ID:
00513736
Message ID:
00513747
Views:
15
This message has been marked as a message which has helped to the initial question of the thread.
>reading a recent post, I read ( then proved ) that if you declear a private var in you main program it will have golbal scope.
>
>WHY!!!?!?!?!
>
>unless I'm mistaken, in most ( if not all ) other programming languages when you declair a private var it is scoped to that file, method, function, etc. I should be able to declair the Var isSomeThing as private anywhere in the program, and anywhere else ( other than that function, etc. ) isSomeThing should not exist, irregardless of how it came to that piece of code ( even if it is in the main.prg file ).
>
>I don't understand why the deviation on something so primitive.
>
>- jer

Because the PRIVATE myVar1 will be visible for all the code called from the MAIN.PRG, so it is global for this application, but if you run another application from it's own MAIN prg, myVar1 will not be available for it. In case you declare PUBLIC myVar1, it will be accessible from both apps.
The PRIVATE variable is scoped for the current procedure/method and any others which may be called from it (excluding the case when the called procedure declares the same myVar1 variable name as PRIVATE, which "hides" this variable from the calling procedure variable)
Nick Neklioudov
Universal Thread Consultant
3 times Microsoft MVP - Visual FoxPro

"I have not failed. I've just found 10,000 ways that don't work." - Thomas Edison
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