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Dennis good work. There are two possibilities for the error in the
example. I have to wonder if Tomasz even picked up on the error you
mentioned as he was caught up in compiler talk and did not thank you
and say that the error would be fixed. That aside Tomasz has done a
terrific job on MY AMI.
But, errors in examples as in a 21 day vc++ book frustrated me to the
point that my vc++6.0 pro ed just sets on the shelf. We all have
different levels of tolerance and Dennis yours excels.
I discovered MS's Express series just a month ago and typed my 1981
basic program into vbasic 2008 express. I had over a hundred error
msgs but it was easy to work through. I think the vb is easier than
the vc express because of the error window (which is more like
vc6.0). MS has provided a powerful on-line help enter-face. Vb
express, I think, allows creation of a dll.
Dennis I hope that you will post a "How To dll" in the Files section
which is user friendly. It appears you may have that ability.
Sometimes experienced people write over the heads of less experienced.
Dan
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx>
wrote:
>
> Dennis,
>
> OK, OK, my bad. You see my previous comment was not intended to be
taken so seriously.
> I have very different perspective than you and others on the list
> since C++ compiler is my everyday bread and butter so I have very
different expectations and very different opinion than majority.
> If I wrote so on some "hard core C geek" forum, I would be
understood better.
>
> Apparently 2008 "express" version is less restrictive
> compared to previous 2005. I am not using 2008. Three years ago I
bought Professional Edition 2005 to find that I use
> it only for 64 bit compilations because it is slow for everyday
work, crashes a lot and code produced is not compatible with 9x
windows.
> I use good old version 6 (from 1997 afair) because it is fast and
compatible with all Windows versions. That old version 6.0 is
> something that Microsoft has done very well (but there was no free
editions at that time).
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: Dennis Brown
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: Saturday, April 26, 2008 7:20 PM
> Subject: Re: [amibroker] Visual C++ 2008 Express simple DLL
sample file?
>
>
> Tomasz,
>
>
> While, being a Mac guy, I am quick to vilify Microsoft. However,
in this case you are being too harsh on them. They seem to have
improved their free version for 2008 and with some more
experimentation, I was able to get the free version to compile the
ADK Sample project and produce the sample.dll. Then I modified the
functions.cpp slightly and made another sample.dll that functioned
properly with AFL calls.
> Here is what I did to make it work:
>
>
> 1. I reinstalled the ADK from scratch to get rid of my previous
experiments.
> 2. I double clicked the Sample.dsp file which launched Visual
C++ 2008 Express Edition
> 3. A dialog box came up requesting to convert the project
format to an updated version --I clicked Yes. This was the key step.
> 4. I did a "Build Solution" from the Build menu.
> 5. The Sample.dll was generated error free and placed in
the "Debug" folder.
> 6. I moved the Sample.dll into the Plugins folder and started
up AmiBroker. I added a plot calling ExampleEMA. Success.
>
>
> There is a humorous side to this story also...
>
>
> I modified the ExampleEMA just to make sure that it was my
changes that I was seeing and not something else, since the
ExampleEMA was a prebuilt function. I called it myExampleEMA, and I
changed the function to return a constant. It worked half way????
The name changed, but it returned the exact same moving average
result as before.
>
>
> I tried all kinds of changes to that function which seemed to
have no effect. I finally commented practically everything out in
the function and it still returned a beautiful moving average. My
mind was going in circles tying to figure out how my changes could be
ignored. It truly seemed impossible. It is funny that when you
don't know what you are doing and in a new situation, the mind is
open to the wildest speculations to explain what is happening.
>
>
> Eventually, I commented out the other two functions: exampleMACD
and ExampleMA. Finally I got a compile error message. It turns out
that there is a typo in the function table. Both ExampleEMA and
ExampleMA point to VExampleMA code. Since the file was last modified
in 2001, it must have been there for 7 years and nobody noticed until
now --or at least did not bother tell AmiBroker about it. It was
lurking for all those years just waiting for a novice like me to get
tricked into thinking the laws of programming physics were suddenly
altered. LOL
>
>
> Now I will proceed to try and make my real dll work.
>
>
> Best regards,
> Dennis
>
>
> On Apr 26, 2008, at 10:22 AM, Tomasz Janeczko wrote:
>
> See also the video:
> http://www.amibroker.com/video/devcpp.html
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: Tomasz Janeczko
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: Saturday, April 26, 2008 4:19 PM
> Subject: Re: [amibroker] Visual C++ 2008 Express simple DLL
sample file?
>
>
> Hello,
>
> Visual C++ 2008 EXPRESS edition (FREE) is severely limited
and does NOT support creating of DLLs at all.
> That's why you get error when compiling it with Express
edition.
> Microsoft never gives useful things for free. Express
editions are toys only.
>
> To create DLLs you need either Standard or Professional
edition, or free Borland compiler or free GCC( GNU CC)/MinGW
> http://www.bloodshed.net/devcpp.html
> Sample project files for free Dec-C++ are included in the ADK.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: Dennis Brown
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: Saturday, April 26, 2008 2:18 PM
> Subject: Re: [amibroker] Visual C++ 2008 Express simple DLL
sample file?
>
>
> Paul, That is exactly what my plan was and what I was
attempting to do. However, the example in the ADK would not compile
error free with Visual C++ 2008 Express as I explained. Perhaps it
would with the full version, but I explained that issue in my last
post to Mike.
>
>
> BR,
> Dennis
>
>
> On Apr 26, 2008, at 2:13 AM, Paul Ho wrote:
>
> You should start off by compiling the examples contained
in the ADK. and increment things slowly so you know what could
possibly cause the problem
>
>
>
>
> --------------------------------------------------------------------
> From: amibroker@xxxxxxxxxxxxxxx
[mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Dennis Brown
> Sent: Saturday, 26 April 2008 1:44 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Visual C++ 2008 Express simple DLL
sample file?
>
>
> Hello,
>
> I took the challenge from Tomasz that anyone who is
willing to learn,
> can extend AFL to do anything. My chosen task is to
restore the
> scroll position of the Parameters Window after a "Reset
all" button
> click --and yes, it has an important use.
>
> Tomasz informed me that I would need to write a DLL to
make this
> possible. There may be other ways, but I will try it
this way.
>
> First I have to say that I do not know C++ (other than
AFL has a
> similar syntax). Next I am not very familiar with
anything Windows (I
> am a Mac guy). So if I can do this (with a little help
from my AB
> friends) Tomasz will be vindicated in his statements.
>
> I determined that all I need is to make an extremely
simple DLL. It
> will create the following new AFL function:
>
> oldScrollPosition = GetSetWindowScroll
(newScrollPosition);
>
> It will simply return the current scroll position of
the active
> foreground window and then set the scroll position to
the supplied
> parameter. It should only be about 10 lines of C++ code.
>
> I have found the Windows calls that will get the handle
of the
> foreground window, and (with a pointer from Tomasz)
calls to get and
> set the scroll thumb position on a standard window.
>
> Everything else I need to do I can handle with AutoIt
or AFL.
>
> I have installed the free ADK and installed the free
Visual C++ 2008
> Express program, and started to try to write this.
>
> Initially I tried just Building the Sample DLL in the
ADK. That
> mostly works, but gives me errors on the Plugin.cpp:
>
> error C2491: on 5 critical lines for : Definition of
dllimport
> function not allowed
> these are the PLUGINAPI statements for Release, Init,
> GetFunnctionTable, SetSiteInterface, and GetPluginInfo.
>
> Somehow, I think I really need these lines to compile
for any AB DLL
> to work...
>
> I have tried a bunch of things, and I can make it give
me more errors,
> but unfortunately no less errors. So I think I need
some hints or
> more help to get started.
>
> I was wondering if anyone has an answer, or a simple
DLL sample
> project file that builds error free on Visual C++ 2008
Express that
> you could email me to get me started on the right track
with this?
>
> Thanks,
> Dennis
>
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