[AccessD] Alias Question

[Arthur Fuller]

The past that I am not understanding is why I would want to rename a
function unless it had a really long name that was a hassle to type.

On Sun, Dec 19, 2021 at 7:37 PM Stuart McLachlan <stuart at lexacorp.com.pg>
wrote:

> It's also worth noting that in VBA, you don't need an ALIAS if you don't
> rename the function:
>
> Declare Function GetDesktopWindow Lib "user32" () As Long
> ...
> Debug.Print GetDesktopWindow
> ...
>
> --
> Stuart
>
>
> On 19 Dec 2021 at 18:31, Arthur Fuller wrote:
>
> > Thanks Gary and Stuart. That clears things up.
> >
> > On Sun, Dec 19, 2021 at 5:53 PM Gary Kjos <garykjos at gmail.com> wrote:
> >
> > > Here us Stuarts earlier long response Arthur.....
> > >
> > > On Sun, Dec 19, 2021 at 2:46 PM Stuart McLachlan
> > > <stuart at lexacorp.com.pg> wrote:
> > > >
> > > > It is the exact name of the function as the it appears in the
> > > > DLL. You
> > > can declare the
> > > > function with any function name you want in your code, but you
> > > > must give
> > > the correct actual
> > > > name, with correct capitalisation, as it appears in the function
> > > > as the
> > > ALIAS because that is
> > > > how your code finds it in the DLL.
> > > >
> > > > In your example, the actual exported function n the DLL is called
> > > GetDesktopWindow (not
> > > > captialization).
> > > >
> > > > You could call get the Desktop WIndow handle with hWNd =
> > > > GetWinNAme() if
> > > you declared
> > > > your function like this:
> > > > Declare Function myGetWInName _
> > > > Lib "user32" Alias "GetDesktopWindow" () As Long
> > > >
> > > > If you did this (note incorrect capitalization), calling your
> > > > function
> > > would give an error since
> > > > their is no such function in the DLL.
> > > > Declare Function WM_apiGetDesktopWindow _
> > > > Lib "user32" Alias "Getdesktopwindow" () As Long
> > > >
> > > >
> > > >
> > > > On 19 Dec 2021 at 13:30, Arthur Fuller wrote:
> > > >
> > > > > Given a function declaration such as this(from ADH, by Getz et.
> > > > > al.): <code> Declare Function WM_apiGetDesktopWindow _ Lib
> > > > > "user32" Alias "GetDesktopWindow" () As Long </code>
> > > > >
> > > > > What purpose does the Alias serve?
> > > > >
> > > > > --
> > > > > Arthur
> > > > > --
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> > > > >
> > > >
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> > >
> > >
> > > --
> > > Gary Kjos
> > > garykjos at gmail.com
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> > Arthur
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-- 
Arthur