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Create a shortcut to your program, edit it and in the field Start in, set the folder to your Dll. That will work... Remember, clicking the shortcut will run your program correctly, but clicking the program will give the errormessage..
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Hello everyone,
Just so its known this question is related to my programming class. Here is the question out of the book:
"Is it reasonable to create a CHawk by deriving from CBird? How about a COstrich? Justify your
answers. Derive an avian hierarchy that can cope with both of these birds."
class CBird
{
protected:
int wingSpan;
int eggSize;
int airSpeed;
int altitude;
public:
virtual void fly() { altitude = 100; }
};
I thought that the class has to be declared first. Like #include CBird.h goes in the include list. If I am wrong, then the question from the book is YES, CHawk and COstrich can be inherited from CBird.
Can anyone provide me with clarification to classes related to OOP?
Thanks in advance.
V/R
Rob
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I think the question is trying to check if you understand when you can inherit from a class. I will only provide you a hint - Hawk can fly but Ostrich can't.
-Saurabh
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Thank you very much for the prompt response.
So I take it that the non-flying birds will not and can not inherit CBird class. So there would have to be another class to define CNonbird correct?
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Guess you don't know much about biology either.  To see if something should fit in a class hierarchy, does it have an "is-a" relationship?You measure democracy by the freedom it gives its dissidents, not the freedom it gives its assimilated conformists.
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As Tim said you should check for is-a relationship. Ostrich *is a* bird but it cannot fly, this suggests that you need to think about how can you organize birds.
-Saurabh
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rbwest86 wrote: "Is it reasonable to create a CHawk by deriving from CBird? How about a COstrich? Justify your
answers. Derive an avian hierarchy that can cope with both of these birds."
Both ostrich and hawk belong to the Aves class, so they are both birds. While an ostrich belongs to the Struthioniformes (flightless) order, it's a bird nonetheless."One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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Hello,
Well, I think the answer is in:
rbwest86 wrote: Justify your
answers
That means in this case that nearly any answer will do, provided you can argue the point.
I would say that they all can be derrived from CBird, they all potentially have eggSize, airSpeed and altitude. You distinguish their flying behaviour by overriding the Virtual Function 'fly' In the case of COstrich, I would say:
#include 'Bird.h"
class COstrich : public CBird{
void COstrich::fly(){altitude=0;}
Beyond that, what springs to mind is, that one fool can ask more questions...etc.
Regards,
 Bram van Kampen
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I'm trying to figure out how to locate and use the IP Address/Default Gateway in a C++ program. This is so that a simple program can be universal on any network. I have been able to run "ipconfig /all" and output all the information to a text file, but I can't make it usable in the same program.
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If you already have it in a txt, you can open and read it with files management as other stuff.
About the use... maybe this[^] can help you.Regards.
--------
M.D.V. 
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpfull answers is nice, but saying thanks can be even nicer.
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I thought about that, and while I can get it down to the correct line, I couldn't get it to retrieve only the gateway. Had some issues using the find command. Its safe to say I'm pretty amateur.
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gamefreak2291 wrote: I'm trying to figure out how to locate and use the IP Address/Default Gateway in a C++ program. This is so that a simple program can be universal on any network.
Not sure why you need this information for a simple networking program. Have a look at the API Helper API[^]. There can be multiple network interfaces in your system, you can use GetAdaptersInfo()[^] to get IP address/netmask/etc for all of them.
Hope this helps!
/M
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See if this helps."One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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I'm looking to create a pair of buttons with the look of a Windows spin control. That is, two small buttons with an up arrowhead on one and a down arrowhead on the other. So far I'm unable to show the arrowhead characters as the button labels.
I'm using Visual Studio 2008 v9.0, C++, MFC. The project is compiled with the D "_MBCS" option. Switching to Unicode would require many hundreds of changes to the code base.
How can I use that character in my button label? Thanks in advance!
Dave.
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Could do, but I thought it might be simpler to use an existing character. Problem is, these characters are proving difficult to access. I will use a bitmap if I have to.
Dave.
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| There is something for that in the Windows API somewhere. I've used it when I had to owner-draw cells in a (lousy) grid control to show that they would be dropdown combo boxes when editing the cell. Unfortunately, I can't seem to find the reference and am not around that code right now. Please do not read this signature.
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Why don't you change the button font (for instance, you may use Symbols characters 173, 175)?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Not sure how that's going to help...?
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Did you use CharMap to see what characters 173 and 175 in the Symbol font set were?"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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They're not what I want. The characters I want are U+25B2 and U+25BA. They show up in charmap but their codes are not accepted by the compiler. Again the D "_MBCS" flag is set.
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Then you have to use the "Wingdings 3" font, characters 112, 113.If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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OK, now I get it. I wasn't sure how changing the font could help. Yes that works. Now I have to hope the users all have Wingdings 3! But that's a problem for another day.
Thanks to all for your help!
Dave.
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I've used such font to show the arrows on the button.
Wasn't that what you were asking for?
 If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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I See your Drift, but How do you change two chars in a font ( to say Marlot chars or Bitmaps)leaving all the others the same.
RegardsBram van Kampen
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