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And cross-posting to multiple forums is considered very rude! Come on, you posted this question in the "Article Requests and Ideas" forum...
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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hi
i am tryin to write a program(personal interest) which generates the strings of length 5 with a given input of 2 strings from a set of strings.
that is, we have 26 alphabets and the input is "a b".
and my desired output should be "a b c d e"(length =5)
and all possible combinations with "a b - - -".
and also output should not contain "a b d c e" if it has "a b c d e".
can anyone help me the loop.
thanking you.
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Consider a library (unmanaged) exports a class. the class is as follows.
class A<br />
{<br />
public:<br />
virtual void funcA()<br />
{<br />
}<br />
<br />
void DoProcessing()<br />
{<br />
funcA();<br />
}<br />
}
Now in native, If i have to override funcA it would be as
class DA : public A<br />
{<br />
public:<br />
virtual void funcA()<br />
{<br />
}<br />
}
Now if i create an object of DA, and call DoProcessing() , funcA() in DA would be called.
Now if I write a managed wrapper over class A as
class _gc MngdA<br />
{<br />
private:<br />
A __nogc* m_pA;<br />
public:<br />
void DoProcessing()<br />
{<br />
m_pA->DoProcessing();<br />
}<br />
}
No if I inherit from MngdA, i dont have any path to override the virtual functions. This means DoProcessing() will always call the funcA() in class A.
I need a mechanism, so that this virtual function call from the native could could be riuted out into managed code and be able to override it from clr languages.
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Well, C++/CLI also has virtual functions. As long as your managed wrappers also have the same inheritance hierarchy.
Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro
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I think u dint got my question right.
I have updated the question with further explanation if u could plz have a look.
Rahim Rattani
Karachi - Pakistan
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You'd need managed wrappers for both base and derived classes for this particular scenario.
Regards,
Nish
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48d2058 wrote: I was wondering if you'd mind finishing this project before 11/2/2006.
ROTFL. This is great.
1. You asked in the C++/CLI forums, your lecturer does not want a managed solution.
2. For you to get to the point of being asked to do this assignment, you must have had a class or two. Where you asleep ?
3. I will do this for you, for $200. I'll charge $400 for the next piece of homework you can't do because you didn't do this one. And my price will continue to double until you go broke, or until you graduate as an unemployable, lazy bum.
Or, you could try to do your own homework and ask specific questions. Then I will help for free.
Christian Graus - Microsoft MVP - C++
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Christian Graus wrote: I will do this for you, for $200.
Damnit CG, stop reducing hour rates. I was gonna ask him for $400! 
Regards,
Nish
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LOL - you've got a point. I'll let all my various project managers know that I won't work for less than $400 an hour, from now on. :P
Christian Graus - Microsoft MVP - C++
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Hi,
Im new to codeproject, I was hoping to get some help. Im tryin to convert the Image into Byte stream and send it to MySQL database. (Hence, so I can send image to database)
MemoryStream^ mst = gcnew MemoryStream();
viewPictureBox->Image->Save(mst,viewPictureBox->Image->RawFormat);
Byte BinaryImg[] = mst->GetBuffer(); <- doesnt like this line
MySqlCommand^ cmd = gcnew MySqlCommand("SELECT * FROM Patient", Mycon);
cmd = gcnew MySqlCommand("INSERT INTO patient(Leftimage) VALUES" + "('"+viewPictureBox+"')", Mycon);
I get the following error:
error C2440: 'initializing' : cannot convert from 'cli::array ^' to 'unsigned char []'
Im using MC++.
Can someone plz give me hand. I was informed that Nish can help me with this porblem !
thanks alot in advance
hbjs
makaveli
-- modified at 21:10 Sunday 5th February, 2006
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Hi
can someone please give me a comment or advice as Im stuck!!
thanks
makaveli
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The MSDN[^] documentation says GetBuffer returns array<unsigned char>^ , did you try using that?
Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro
-- modified at 0:42 Monday 6th February, 2006
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Hi Senthil,
MemoryStream^ mst = gcnew MemoryStream();
viewPictureBox->Image->Save(mst,viewPictureBox->Image->RawFormat);
//Byte BinaryImg[] = mst->GetBuffer(); <- doesnt like this line
array<unsigned char="">^ GetBuffer();
MySqlCommand^ cmd = gcnew MySqlCommand("SELECT * FROM Patient", Mycon);
cmd = gcnew MySqlCommand("INSERT INTO patient(Leftimage) VALUES" + "('"+mst+"')", Mycon);
It compiles, but it says it entered system.IO.MemoryStream !!
Im assuming it wasnt inserted correctly. Can u please tell me how to insert it in my code correctly and in the MySQL statement.
Many thanks for your help
regards
hbjs
makaveli
-- modified at 1:14 Monday 6th February, 2006
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Hi Senthil,
MemoryStream^ mst = gcnew MemoryStream();
viewPictureBox->Image->Save(mst,viewPictureBox->Image->RawFormat);
//Byte MEDIUMBLOB= System::Char::Encoding::UTF8; // mst->GetBuffer();
cli::array<unsigned char="">^ BinaryImg = mst->GetBuffer();
It compiles ! MySQL doesnt except it like that so I need to convert Hex I think, still researching.
thanks for ur help
Regards
makaveli
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I need somewhere to help me figure out how to store hex values. I dont think you can store the hex values as hex, but would it be possible to convert decimal values to hex values and convert the hex values to ascii values and store the ascii values as integers. If someone has an easier way let me know. Thanks
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What are you trying to do ? Hex values and decimal values make non-sense. A value is a value and that's it. The only thing that can change is the way you REPRESENT your value: either in a decimal format, or in an haxadecimal format, ... Now, if you want to print your value in an hexadimal representation, just use sprintf, something like that:
int Value = 2000;<br />
char StringVal[50];<br />
sprintf(StringVal,"%x",Value);
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If he is talking about storing base-10 numbers as base-16 in a text-base file such as XML, then he would reduce the size of the file at the cost of the overhead of the conversion. If the storage is a relational database then the conversion would be a waste of time.
If he is talking about storing "System::Decimal" numbers, then there is a different set of issues.
-- modified at 16:06 Friday 3rd February, 2006
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hi,
does anybody know a function to store a registry key and value to a .reg file and an other function to restore the data of this file if necessarry ?
thanks for help
best regards
emmi
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Hey howzit?
I downloaded source code from this artcle: http://www.codeproject.com/internet/SendTo.asp
I am not sure if its C++ code or C++.NET code but I have no idea how to even begin to compile it, but I really need to see how it works.
I have opened the file in VS 2005, what do I do now, please help, I am a newbie!
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This is MFC.
It is class without a program and without a project.
Go to that page and look for a post "Another Way" and there you will see a C# example, and you can esaly convert from C# to C++/CLI (it is only diffrent a syntax)
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Hey Saksida,
I did see the C# code, unfortunately that code only supports Outlook, whereas the C++.NET code is platform independent so I need to use it. Perhaps you could download the snippet and explain to me how to run it? I would really appreciate it. I have never used C++ or C++.NET before so I am like a dummy!
Regards,
David
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Right now, C++.NET code is only platform-independant in theory.
There may be third-party framework implementations (such as Mono), but .NET basically is the only full-fledged CLI-implementation right now.
Therefore, if you want to write platform-independant code, you should try Java. If you are only after Windows and Linux flavours, you could also try Mono. I'd use Java, though, its much easier to install and maintain.
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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Hi Sebastian,
I think you misunderstood my question in the first place, all I wanna know is how to compile the code!?!?!?
-- modified at 4:09 Thursday 2nd February, 2006
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You will need to build a project around it. As that is MFC code, you should create an empty MFC-project and insert the code into the appropiate files.
If you have no clue about C++, it would be a good idea to read a book on the topic first.
The MFC are not the easiest way to get started with C++...
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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