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Mike, I do not have Howard's book. My searching late yesterday
revealed that he did have an example of how to make a DLL using free
Bloodshed C++. I actually installed Bloodshed first, but found that
it was nothing like the ADK example instructions. So I switched to
free Visual C++ 2008 which matched more closely (but not exactly). I
had contemplated buying Howard's book before, and if it was available
as a download and updatable PDF I might have bought it because of the
other information in it, but as it was, Howard just went traveling and
no books will be shipped for a while. However, the challenge was to
be willing to learn, not to buy the answer. If I wanted to buy the
answer, I am sure someone would be happy to write 10 lines of code for
$50. I could also buy the full Visual C++, but that seems even more
ridiculous for a one-off 10 lines of code.
BR,
Dennis
On Apr 26, 2008, at 1:02 AM, Mike wrote:
> If you have Howard's book on hand, Appendix A takes you through the
> process step by step...
>
> Mike
>
> --- In amibroker@xxxxxxxxxxxxxxx, Dennis Brown <see3d@xxx> wrote:
>>
>> 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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