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VRF-sending Type data as a parameter in an API function call

Question asked by VRFuser on Feb 16, 1999

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Hey Merle.

> Type WIN32_FIND_DATA

Yeah -- We also use the technique that David described.
Until we get a 'struct' keyword for library imports or a void* for
call/return we'll just have to write thunks.

Shawn Fessenden
Mgr., Technical Support
Oswego Software, Inc.
mailto:shawn@oswegosw.com
http://www.oswegosw.com

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VRFuser Feb 15, 1999 5:39 AM
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How would you send the following data type to a single pin in an api
function call?

Type WIN32_FIND_DATA
        dwFileAttributes As Long
        ftCreationTime As FILETIME
        ftLastAccessTime As FILETIME
        ftLastWriteTime As FILETIME
        nFileSizeHigh As Long
        nFileSizeLow As Long
        dwReserved0 As Long
        dwReserved1 As Long
        cFileName As String * MAX_PATH
        cAlternate As String * 14
End Type

any help would be appreciated
Thanks in advance,

Merle Ellet
United Space Alliance
Calibration Automation
Kennedy Space Center

Merle.Ellet-1@pp.ksc.nasa.gov
AutomationControl@mindspring.com
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VRFuser Feb 15, 1999 3:57 PM
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You're way over my head with the API stuff, but vee does not support
stuctures and such. My suggestion would be to create an interface function
that returns an array of values to vee, of which you know the order, and can
assign to the proper pins of a vee userfunction.

To recap, You make a vee user function with the
             dwFileAttributes As Long
             ftCreationTime As FILETIME
             ftLastAccessTime As FILETIME
             ftLastWriteTime As FILETIME
             nFileSizeHigh As Long
             nFileSizeLow As Long
             dwReserved0 As Long
             dwReserved1 As Long
             cFileName As String * MAX_PATH
        cAlternate As String * 14
as outputs. In it, you call your interface C function that put's these
things into an array. If you need help passing array's in vee I can help
too. You may have to call two because of the strings. The interface function
makes your API call and walla. I've done this sort of thing before to use
C++ classes that I needed.
                    ,,,
                   (0 0)
---------------(_)--(_)--(_)---------------
Dave Paslay                              Coin Acceptors
Engineer                                   300 Hunter
Ave.
Automated Test Systems          St. Louis, MO 63124
dpaslay@coinco.com

> -----Original Message-----
> From:     Merle D. Ellet [SMTP:lazerus.long@mindspring.com]
> Sent:     Monday, February 15, 1999 8:39 PM
> To:     hpvee
> Subject:     VRF-sending Type data as a parameter in an API function call
>
> How would you send the following data type to a single pin in an api
> function call?
>
> Type WIN32_FIND_DATA
>         dwFileAttributes As Long
>         ftCreationTime As FILETIME
>         ftLastAccessTime As FILETIME
>         ftLastWriteTime As FILETIME
>         nFileSizeHigh As Long
>         nFileSizeLow As Long
>         dwReserved0 As Long
>         dwReserved1 As Long
>         cFileName As String * MAX_PATH
>         cAlternate As String * 14
> End Type
>
>
> any help would be appreciated
> Thanks in advance,
>
> Merle Ellet
> United Space Alliance
> Calibration Automation
> Kennedy Space Center
>
> Merle.Ellet-1@pp.ksc.nasa.gov
> AutomationControl@mindspring.com << File: ATT13560.gif >>
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VRF-sending Type data as a parameter in an API function call

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