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I remember I have seen some really indepth articles on DLLs, all the types and also when to auto load and when to load it explicitly. However, I searched Codeproject and did not find too much. I want to make my FIRST attempt. I want to include a class and ALL its resources in a DLL. Can anyone point me to ALL the articles?
I also read that when you change or add to a DLL then you have to recompile everything and relink. Is this also true if you are only changing an internal functions but not its calling method. I mean f(x,y,z)... This stays the same. Only now it is x-y+z instead of maybe x+y+z. Will this tpye of situation require the not only redistributing the DLL but also a new exe?
Thanks in advance.
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As for the first question, do a search here at CP, there are some articles that will help you get started.
With respect to your second question: What you call "its calling method" is usually referred to as the signature of the function. You can see the set of signatures exported by a DLL as a contract between the DLL and the programs using it. Everything will be OK as long as the contract is respected by both parts. The following situiations can arise:- You preserve the signature of the exported functions but change its internal implementation: programs won't broke if the observed behavior of the exported functions stays more or less the same. For instance, if you rewrite a function to improve its efficiency. In this case, you'll need to redistribute the DLL only.
- The signature of the exported functions change: For instance, you change a
f(int) to be a f(double). In this case you have to rebuild the programs using the DLL and resdistribute bouth the DLL and the EXEs affected.
- You maintain the signatures of the functions exported and add new functions to the DLL: old programs will work OK regardless of whether they're using the old or the new DLL. Programs taking advance of the new functions will need the new DLL, of course.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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The Subject tells you what I'm asking for.
------------------------------------
Rickard Andersson, Suza Computing
ICQ#: 50302279
I'm from the winter country SWEDEN!
------------------------------------
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What's your IP? I'll try pinging it from here.
Some ISPs block ping at the gateway though...
Nish
Oh, I don't know why she's
leaving, or where she's gonna go
I guess she's got her reasons but I just don't wanna know
'Cos for 24 years I've been living next door to Alice
24 years just waitin' for a chance
To tell her how I feel and maybe get a second glance
Now I gotta get used to not living next door to Alice
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Check out Shields Up. It provides a quick test to see if any servers on your computer respond and it will also tell you which ports are open.
Josh Knox
that-guy.net
"Before you criticize someone, walk a mile in their shoes. That way, when you criticize them, you're a mile away, and you have their shoes." - author unknown
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If you want to do it from a program, it's not possible. There's no way to know if there's a firewall or router filtering away access to your IP.
- Anders
Money talks, but all mine ever says is "Goodbye!"
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hi,
What exactly are call back functions?
Mila
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They are handler functions for an event.
The call backs will have a pre defined prototype.
We write a function using this prototype and pass it to some other function. Now whenever some particular event occurs or some message is sent or something like that, the call back function is called for each such event.
Nish
Oh, I don't know why she's
leaving, or where she's gonna go
I guess she's got her reasons but I just don't wanna know
'Cos for 24 years I've been living next door to Alice
24 years just waitin' for a chance
To tell her how I feel and maybe get a second glance
Now I gotta get used to not living next door to Alice
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hi
when i use the right to left layout property in a dialog, the following error appeare:
undefined keyword or key name: WS_EX_LAYOUT_RTL
can any body help me.
Best Regards 
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I think that is a bug in VC6. The correct style to use would be WS_EX_LAYOUTRTL. Edit that by hand in the .rc file...
/moliate
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hi
I edit this in the.rc but the error is still ocure.
Best Regards 
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Then the resource editor probably overwrites it again. Remove the style from the editor, and then edit the .rc file. Perhaps a better alternative would be to add the window style in OnInitDialog with ModifyStyleEx.
/moliate
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I see WS_EX_LAYOUTRTL in WinUser.h
Is that a typo?
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hi
can u send to me the WinUser.h file by Email.
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How do you get rid of the focus to an edit box when it is the only control on a dialog. If there were other controls I could do m_OtherCtrl.SetFocus(); but it doesn't seem to work on the dialog's CWnd.
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You cannot. If the dialog has only one edit control, it will always have focus unless you disable the control.
Nish
Yeah that's me down below 
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Can I use in DAO this SQL statement ? (now, program cant find anything :/ ) :
"SELECT * FROM [tab_product] WHERE name LIKE 'wat%' " (statement have to find all rows where name like "wat??????" )
Is here any possibility to do this ? Or Is't better to use OLE BD ?
Libor Bares
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does somebody know how to make a proper ident lookup ?
Also i´m trying to do it in vb a c/c++ idea or snippet would be fine
Except that i have to connect to port 113 of the client i´m unsure what else i have to do 
So any idea ?
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Is there any way to "tweak" the output of the classwizard? What I want to do is add some Doxygen comments on "new class", "add member function" and so on. For example, adding a new function does something like this (header):
void myFunc(int hello);
while I would prefer this:
void myFunc(int hello);
Right now I am using a very ugly macro, that does not work very well. Can this be done in a simple way?
Thanks
/moliate
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You should consider beatifying your macro, because modifying the class wizard to do your bidding won’t work. I tried doing something similar a few years back, and I ran into several problems:
1) The resource used to write the function implementation is the same one used to write the declaration. Meaning that you would get duplicates of any additions you make, one in the *.h file and the same in the *.cpp file. Also the one added to the *.h will have to be manually removed, as it messes with the class wizards parser.
2) The resource ‘script’ parser is not very advanced. It simply grabs the stuff out of the reswource string line-by-line without doing any validation. Take for example the following WM_SIZE handler resource;
1: OnSize
2: void
3: UINT nType, int cx, int cy
4: %1::%2(nType, cx, cy);
5:
6: %4 Add your message handler code here
Line 1 is used to name the handler, and as the display string in the class wizard.
Line 2 is the return type
Line 3 is the handler’s parameter list
Line 4 generates code that calls the handler’s base class
Line 5 adds a blank line to the code
Line 6 is that stupid comment you delete instantly
So, you could add your comment into line 2, but you’d have to enter it all on the one line. Then once you used the class wizard to inserted it, you’d have to delete the comment out of the *.h (so that you don’t confuse the class wizard’s parser) and then format the comment in the *.cpp.
If your still interested in taking a look at all of this stuff just look for the MFCCLWZ.DLL file in your Visual Studio installation directory under “Common\MSDev98\Bin”. It’s all in there, under the "STRINGARRAY" resource type.
cheers,
-Ben
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Thanks for the clarification on how mfcclwz.dll is organized. I have fired up ResHacker and started looking at it. You are probably right about it being simpler writing a better macro, but it is nice to get a better understanding on how the classwizard works!
Cheers
/moliate
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I have a modal dialog, but I want to change it into a modaless one.
I must have some controls initilized in OnInitDialog().
...
m_pDC = m_pWnd->GetDC();
m_comboCtl.SetCurSel(0);
...
But modaless dialog can't reply to WM_INITDIALOG message.
How can I change them?
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http://www.codeproject.com/useritems/gettingmodeless.asp
Nish
Yeah that's me down below
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But I still have a question...
Where can I have my controls, like combo control, progress control, etc. initialized?
OnSize(), OnMove() seem not to be a right place.
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You do all initialization in OnInitDialog.
Just like in the modal dialog.
Nish
Yeah that's me down below 
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