[program-l] Re: VB6: How can I use a VC++6 DLL Installed in the Same Folder as the VB Application?
- From: "Mark Long" <Mark.Long@xxxxxxxxxxxxx>
- To: <program-l@xxxxxxxxxxxxx>
- Date: Thu, 15 Sep 2005 15:50:34 +0100
As far as I am concerned, database work is one step above root canal
dentistry.
-----Original Message-----
From: program-l-bounce@xxxxxxxxxxxxx
[mailto:program-l-bounce@xxxxxxxxxxxxx] On Behalf Of Justin Daubenmire
Sent: 15 September 2005 14:55
To: program-l@xxxxxxxxxxxxx
Subject: [program-l] Re: VB6: How can I use a VC++6 DLL Installed in the
Same Folder as the VB Application?
hi mark. Speaking of fun db tasks... as fun as converting an oracle 10g
db
to an sql server 2000 db? that was my last one *laugh*
Justin
----- Original Message -----
From: "Mark Long" <Mark.Long@xxxxxxxxxxxxx>
To: <program-l@xxxxxxxxxxxxx>
Sent: Wednesday, September 14, 2005 1:53 PM
Subject: [program-l] Re: VB6: How can I use a VC++6 DLL Installed in the
Same Folder as the VB Application?
> You are welcome. It is more fun than the DB development job that I am
> currently doing.
>
> -----Original Message-----
> From: program-l-bounce@xxxxxxxxxxxxx
> [mailto:program-l-bounce@xxxxxxxxxxxxx] On Behalf Of
> gerald.g.weichbrodt@xxxxxx
> Sent: 14 September 2005 18:45
> To: program-l@xxxxxxxxxxxxx
> Subject: [program-l] Re: VB6: How can I use a VC++6 DLL Installed in
the
> Same Folder as the VB Application?
>
> Thanks Mark. I think I remember seeing some of this stuff in the
> discussion of side-by-side DLLs in discussions about the Windows
> Installer
> and other such. Must not have sunk in well. Thanks again.
>
> Jerry
>
>
>
>
> "Mark Long"
>
> <Mark.Long@microsof To:
> <program-l@xxxxxxxxxxxxx>
>
> t.com> cc:
>
> Sent by: Subject: [program-l]
> Re: VB6: How can I use a VC++6 DLL Installed in the Same Folder
> program-l-bounce@fr as the VB
Application?
>
> eelists.org
>
>
>
>
>
> 09/14/2005 01:23 PM
>
> Please respond to
>
> program-l
>
>
>
>
>
>
>
>
>
> This will only work with a compiled app but if you put the DLL in the
> VB6 directory and then create a VB6.EXE.LOCAL then it will
consistently
> pick up the version in that directory.
>
> -----Original Message-----
> From: program-l-bounce@xxxxxxxxxxxxx
> [mailto:program-l-bounce@xxxxxxxxxxxxx] On Behalf Of
> gerald.g.weichbrodt@xxxxxx
> Sent: 14 September 2005 18:06
> To: program-l@xxxxxxxxxxxxx
> Subject: [program-l] Re: VB6: How can I use a VC++6 DLL Installed in
the
> Same Folder as the VB Application?
>
> Thanks Mark. Should this work if you're running an app in the VB
> environment? or only when it's been compiled and you run the .EXE
file?
> As
> well, am I correct that the file just has to exist in the application
> directory but needn't contain anything?
>
> Thanks a lot,
> Jerry
>
>
>
>
> "Mark Long"
>
> <Mark.Long@microsof To:
> <program-l@xxxxxxxxxxxxx>
>
> t.com> cc:
>
> Sent by: Subject: [program-l]
> Re: VB6: How can I use a VC++6 DLL Installed in the Same Folder
> program-l-bounce@fr as the VB
Application?
>
> eelists.org
>
>
>
>
>
> 09/14/2005 12:02 PM
>
> Please respond to
>
> program-l
>
>
>
>
>
>
>
>
>
> Windows will search the current directory and then the path. However,
> you can override this. Assume that your app is called MyApp. Create a
> file called MyApp.Exe.Local. This will cause Windows to load all DLLs
> and OCX files from the same directory as the application regardless of
> current directory or path.
>
> -----Original Message-----
> From: program-l-bounce@xxxxxxxxxxxxx
> [mailto:program-l-bounce@xxxxxxxxxxxxx] On Behalf Of
> gerald.g.weichbrodt@xxxxxx
> Sent: 14 September 2005 16:00
> To: program-l@xxxxxxxxxxxxx
> Subject: [program-l] VB6: How can I use a VC++6 DLL Installed in the
> Same Folder as the VB Application?
>
>
> The subject doesn't really do my question justice, so here's what I'm
> really asking.
>
> Let's suppose I write a VB program and package it, say, with either
the
> Visual Studio Installer or the Package and Deployment Wizard. In this
> case, I'd just about certainly using Visual Studio Installer, just in
> case
> anybody wonders. The important points are these: I want the user to
be
> able to change the default install location for the program in case
they
> want to do so. Further, I'd like to have the installer drop a little
C
> DLL
> into the program directory to do some low-level manipulation in memory
> that's a little hard to do directly in VB. To give access to the
> functions
> in the C DLL, I'd stick a "Declare" statement for each function at the
> top
> of my VB form. This Declare statement needs to give a location for
the
> DLL
> holding each function. For instance, one of my Declares might be
> something
> like:
>
> Private Declare Function UInt82Hex Lib "Type2Hex" Alias "uint82hex"
> (ByVal
> InVal As Byte, ByVal OutVal As String) As String
>
> My concern is about that clause 'Lib "Type2Hex"'. If I give a
complete
> path to the DLL, then I run into trouble if the user decides to put
the
> application (and with it the DLL) into a different folder somewhere.
If
> I
> don't give any path information, then it becomes uncertain, I think,
> whether the DLL will be found at any given time based on what the
> computer
> considers to be the current directory. So is there any way I can make
> sure
> the application's path will be used when my program tries to access
the
> DLL?
>
> Thanks,
> Jerry
>
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