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IEdmVault5.GetFileFromPath - what is ppoRetParentFolder?

Question asked by Steven Soeder on Jun 23, 2015
Latest reply on Jun 24, 2015 by Steven Soeder

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I'm trying to understand what the ppoRetParentFolder argument is used for so I can determine when it is needed or not.

The documentation says it is optional, but only defines what the object type is, not how it is used or what it is used for.
The explanation of "0 to not return an interface" doesn't make any sense to me. What interface is returned otherwise??

In the example I found they are passing an empty folder object as the argument. I assume then from the name that the return populates the folder object with the folder that contains the file?

Is this correct?

Thanks!!

Visual Basic (Declaration)
Function GetFileFromPath( _ ByVal bsFilePath As System.String, _ Optional ByRef ppoRetParentFolder As IEdmFolder5 _ ) As IEdmFile5

Parameters

bsFilePath: File system path to the file for which to get an interface
ppoRetParentFolder: IEdmFolder5; 0 to not return an interface

Lee CS Young Jun 24, 2015 10:07 AM

Correct Answer

Look at the method declarations for C# and C++ in the documentation, it tells you if the parameters are input or output.

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Michael Dekoning Jun 23, 2015 6:33 PM

It's been a while since I've used VB.Net but I know how this works in C#. Maybe this will help. If you Dim a folder object variable before calling this function, it will be passed the folder object that contains the file. This could be beneficial if you need to use the folder object later.

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Steven Soeder @ Michael Dekoning on Jun 24, 2015 9:32 AM

Michael, after testing I confirmed that this object is populated with the folder that contains the file - so it's use is to return the containing folder. I wish Solidworks' (and EPDM's) API documentation made it clear whether each argument was an input or output like the Windows MSDN does. It would be immensely helpful in trying to learn and implement these functions.

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Lee CS Young @ Steven Soeder on Jun 24, 2015 10:07 AM

Look at the method declarations for C# and C++ in the documentation, it tells you if the parameters are input or output.

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Steven Soeder @ Lee CS Young on Jun 24, 2015 10:11 AM

HA! Perfect. Thanks Lee!!!

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Michael Dekoning Jun 23, 2015 6:33 PM
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It's been a while since I've used VB.Net but I know how this works in C#. Maybe this will help. If you Dim a folder object variable before calling this function, it will be passed the folder object that contains the file. This could be beneficial if you need to use the folder object later.
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- Steven Soeder @ Michael Dekoning on Jun 24, 2015 9:32 AM
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  Michael, after testing I confirmed that this object is populated with the folder that contains the file - so it's use is to return the containing folder. I wish Solidworks' (and EPDM's) API documentation made it clear whether each argument was an input or output like the Windows MSDN does. It would be immensely helpful in trying to learn and implement these functions.
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  - Lee CS Young @ Steven Soeder on Jun 24, 2015 10:07 AM
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    Correct Answer
    Look at the method declarations for C# and C++ in the documentation, it tells you if the parameters are input or output.
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    - Steven Soeder @ Lee CS Young on Jun 24, 2015 10:11 AM
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      HA! Perfect. Thanks Lee!!!
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IEdmVault5.GetFileFromPath - what is ppoRetParentFolder?

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