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I always try to define a variable like that only one time (outside the loop). It shouldn't make a difference unless it's a more complex type that has a lengthy constructor/destructor. I'm old, and set in my ways.
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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Hi.
Using Visual C++ 6, can i include controls like edit box to SDI application without the use of dialog?
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Yes, sort of. You derive your window from formview, and it essentially becomes a dialog with a template. There's also no reason you can't just add controls dynamically to any view type you like
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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UnknownBlue wrote: Using Visual C++ 6, can i include controls like edit box to SDI application without the use of dialog?
Yes, CFormView should help you, but then it takes a dialog resource.
Another option is to directly create controls using their create method.
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Can you use of CFormView ?
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We have an SDI application that we'd like to be able to shrink up to just a small height (approx 60 pixals of client height). I've got the code to shrink it and expand it back to the original size. Unfortunately, when it's shrunk down, the framework makes the actual size much larger and adds in vertical scrollbars.
Anyone know how I can remove the scrollbars when they are added in automatically?
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You could try and remove the WS_VSCROLL window style in PreCreateWindow.
The CREATESTRUCT structure has a style member from which to remove this style.
cs.style &= (~WS_VSCROLL)
« Superman »
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Good idea, but it doesn't seem to have any affect. I also tried
cs.dwExStyle &= (~WS_EX_RIGHTSCROLLBAR);
It didn't work either. Seems like the document interface has some limit on the minimum size of the document window.
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I need to run some application at the same time when I execute my project.
Please advise me, how to add this application in resource of my project.
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Use ShellExecute to run the program. I don't think you want to make it a resource.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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ShellExecute() need path of application but I don't khow how to get the path that my project is working.
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I don't understand what you mean by execute my project.
If you mean build the project, you could create a batch file in which you can first run the application and then use msbuild or devenv to build the project.
If you want to include another application as part of your application, embed the other application as a binary or custom resource. During runtime you can use FindResource, LoadResource and LockResource functions to get a pointer to the resource. Then copy the entire application to a file with extension .EXE. After that you can execute the newly created .EXE file using CreateProcess.
« Superman »
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Going through an adjustment period as I have just "upgraded" from Visual Studio 6 to Visual Studio 2005. I am having a few problems adjusting, although they are not so serious. I have, however, just discovered that a managed class (ie: declared as:
<code>ref class CMyClass</code>
cannot apparently have any friend classes. I assume therefore that if I want to work with inheritance I should avoid use of managed classes, correct? Or is there a way to access the protected members of a managed class? If not, then what is the advantage of a managed class in C++? I realize they are created on a garbage collected stack, but if inheritance cannot be used aren't we sacrificing alot of the functionality and power of C++? Yes, I know I can just declare my classes as unmanaged, but I am curious as to the answers to the above questions.
Thanks.
Windows with no internet connection is safe, but that's not what Windows was built for.
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The Apocalyptic Teacup wrote: I assume therefore that if I want to work with inheritance I should avoid use of managed classes, correct?
Inheritance has nothing to do with friend classes. But, yes, the .NET framework does not support friend classes. Which sucks.
The Apocalyptic Teacup wrote: Or is there a way to access the protected members of a managed class?
Yes, derive your classes from them ( inheritance ). Or, put the classes that work together in an assembly and use 'internal'
The Apocalyptic Teacup wrote: If not, then what is the advantage of a managed class in C++?
The fact that it can use the .NET framework
The Apocalyptic Teacup wrote: but if inheritance cannot be used
Just not true
The Apocalyptic Teacup wrote: aren't we sacrificing alot of the functionality and power of C++?
The whole point of C++/CLI is that you can access the power of C++, things like templates ( no, generics suck and do not count ) and the STL are available to you.
The Apocalyptic Teacup wrote: Yes, I know I can just declare my classes as unmanaged
You probably should, if you can, it means you don't rely on the framework. Why add baggage if you don't need it ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Christian Graus wrote: Inheritance has nothing to do with friend classes. But, yes, the .NET framework does not support friend classes. Which sucks.
Yes, okay true. Re-reading my post I see I worded that very badly. Anyways, I had a nice class all written up with protected member functions, etc... it was great and then I tried to derive a class (declared as friend) from it and - wow - the compiler errors. Do you have any idea why friend classes can't be used? Do they interfere with the garbage collection?
Windows with no internet connection is safe, but that's not what Windows was built for.
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The Apocalyptic Teacup wrote: then I tried to derive a class (declared as friend)
Why would you declare a derived class as a friend ?
The Apocalyptic Teacup wrote: Do you have any idea why friend classes can't be used?
Because the .NET teams always seem to go for the 'lite' implimentation.
The Apocalyptic Teacup wrote: Do they interfere with the garbage collection?
I don't see how that's possible.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Christian Graus wrote: Why would you declare a derived class as a friend ?
OMG I'm tired. I meant I declared a friend class an instantiated it. 
Windows with no internet connection is safe, but that's not what Windows was built for.
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*grin* OK. Just making sure we're on th same page.
Basically, with .NET, they always try to make the language easy. friend classes are probably too hard, when the idea of allowing fall through in switch statements is completely impossible. I wonder if C++/CLI allows const methods, because C# and VB do not.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Christian Graus wrote: I wonder if C++/CLI allows const methods,
Sure, as long as you don't declare them with the const keyword 
Direct quote from my output window...
"'const' and 'volatile' qualifiers on member functions of managed types are not supported"
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Christian Graus wrote: *grin* OK. Just making sure we're on th same page.
Actually, I don't know what page I'm on anymore. Originally I was asked to write this code in VBA under Excel so that "others could use it easily". When I protested about how it would be excruciatingly slow (it's computationally intensive) nobody listened. But I coded it in VBA as requested.
After I coded it and it was shown to be excruciatingly slow they suggested Matlab. Again, I protested (Matlab is interpreted to). Nonetheless I coded it in Matlab. Again, painfully slow - actually worse than in VBA.
Finally I got my way and was invited to code it in C++. In a demonstration of my original point, one calculation went from 90 minutes under VBA to 6 minutes in C++. I started writing it in VS6 until it was suggested we "upgrade" to Visual Studio 2005. I was happty about being able to write it in c++, but this managed code stuff, well, I just don't know about this. Anyways, it's been a learning experience up to now.
Windows with no internet connection is safe, but that's not what Windows was built for.
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Well, you don't have to use managed code, you shouldn't unless you specifically need it.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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This actually belongs in the C++/CLI forum ( you threw me, I actually told a few people they were in the C++/CLI forum  )
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Christian Graus wrote: This actually belongs in the C++/CLI forum ( you threw me, I actually told a few people they were in the C++/CLI forum
Shows how much I know about CLI! 
Windows with no internet connection is safe, but that's not what Windows was built for.
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In addition to Christian's excellent reply...
You also can't use multiple inheritance.
There's ways around all of it though, for the most part.
Access to protected members can be done through properties. From an OOP purist (I am not) point
of view, friend classes are probably a kludge anyway
You can't derive from multiple classes but you can derive from multiple interfaces.
Anyway, just because it's there doesn't mean you have to use it. If you're not using the .NET
framework then certainly don't use managed classes or even compile to CLR.
I personally use C++ for almost everything and managed C++ only for access to features of the
.NET framework, controlling compilation with #pragma managed/#pragma unmanaged.
Mark
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Mark Salsbery wrote: friend classes are probably a kludge anyway
A little. But, making a property public throws away encapsulation entirely.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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