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Bonus TIPS for Successful Posting

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Variable Question

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    Variable Question

    I have developed an application that runs fine but I have recently installed four versions of the same application on to a clients stand alone computer. The four apps are identical but run from separate folders using separate shorcuts and contain separate data. They are fired by a single installation of Alpha runtime.

    The apps are heavily loaded with global variables so my question is:-

    If the user has all four apps running at once will there be a clash of variables or will each separate app only refer to its own variables.

    For example, if a variable_X value is set in app #1 would the value of variable_X be the same in app #2, #3 and #4 if they receives focus. Or must the user only have one app running at once.

    I often have more than one version of my apps running during development without problem but I should like some reassurance from you knowlegeable developers as I am never quite certain where and how the variables are stored.

    Michael

    #2
    RE: Variable Question

    >>For example, if a variable_X value is set in app #1 would the value of variable_X be the same in app #2, #3 and #4 if they receives focus
    Peter
    AlphaBase Solutions, LLC

    [email protected]
    https://www.alphabasesolutions.com


    Comment


      #3
      RE: Variable Question

      Peter,

      I think you misread my question or it was'nt clear.

      My scenario is one PC loaded with a single version of Alpha Runtime but running four instances of an identical application at once. Each app is in a separate folder and contain different data.

      Are the identical global variables in each app isolated from each other or do they clash when switching between apps?

      Michael

      Comment


        #4
        RE: Variable Question

        Michael, I think they're kept separate.

        Shouldn't be too hard to test. Put a global variable on one of the forms.

        Open four instances of the application. Modify the variable in one. Then go look at the other three, after resynching each form.

        -- tom

        Comment


          #5
          RE: Variable Question

          Hello Michael,

          Each seperate instance of the Alpha Runtime will be running in its own memory space and global variables will not be visable to any other instance of the Runtime.


          Good luck,
          Jim

          Comment


            #6
            RE: Variable Question

            Thanks All,

            I have done several tests and Alpha is quite happy to run several identical applications simultaneously from one single version of Runtime and each application's global variables are completly independent of each other.

            This may be of interest to someone

            Michael

            Comment

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