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Understanding VBS 'True' & 'False' parameters
Posted on 2013-01-08
Here's my two lines in code:
intErr = objShell.Run("cscript.exe ""D:\sample.vbs""", 0, True)
intErr = objShell.Run("D:\sample.ba
I was told the 'True' or 'False' is to tell it whether or not to finish the script before continuing on the 2nd one. However on the first one, I was told it was to 'overwrite' the existing files if they exist. Or am I misled. I need to understand what differences are in the above. I mainly need the first one to complete before it continues to the second one.
intErr = objShell.Run("cscript.exe ""D:\sample.vbs""", 0, True)
intErr = objShell.Run("D:\sample.ba
I was told the 'True' or 'False' is to tell it whether or not to finish the script before continuing on the 2nd one. However on the first one, I was told it was to 'overwrite' the existing files if they exist. Or am I misled. I need to understand what differences are in the above. I mainly need the first one to complete before it continues to the second one.
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3 Comments
objShell.Run (strCommand, [intWindowStyle], [bWaitOnReturn])
bWaitOnReturn : Wait for the command to complete before
continuing execution of the wsh script.
If bWaitOnReturn is set to TRUE, the Run method returns any error code returned by the application.
If bWaitOnReturn is not specified or FALSE, this method immediately returns to script execution rather than waiting on the process termination (and returns an error code of 0)
Specifying the bWaitOnReturn parameter allows you to run programs synchronously (one at a time).
http://ss64.com/vb/run.html
so if you use true the code will wait till the program or batch file exits before it continues with the next task. it has nothing to do with overwriting .
bWaitOnReturn : Wait for the command to complete before
continuing execution of the wsh script.
If bWaitOnReturn is set to TRUE, the Run method returns any error code returned by the application.
If bWaitOnReturn is not specified or FALSE, this method immediately returns to script execution rather than waiting on the process termination (and returns an error code of 0)
Specifying the bWaitOnReturn parameter allows you to run programs synchronously (one at a time).
http://ss64.com/vb/run.html
so if you use true the code will wait till the program or batch file exits before it continues with the next task. it has nothing to do with overwriting .
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See http://ss64.com/vb/run.html (for example) for reference. The last value of Shell.Run tells whether the call should wait for termination of the process.
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