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Hi,
I am cmpiling a project that is developed in Visual C++ 6.0 with SP5 on Windows 2000(SP4)
I am compiling in Visual C++ 6.0 without any service pack on Windows XP and it is giving me error
c:\program files\microsoft visual stu:(dio\vc98\include\unknwn.h(343) : error C2143: syntax error : missing ',' before '*'
c:\program files\microsoft visual studio\vc98\include\unknwn.h(343) : error C2259: 'IUnknown' : cannot instantiate abstract class due to following members:
c:\program files\microsoft visual studio\vc98\include\unknwn.h(106) : see declaration of 'IUnknown'
c:\program files\microsoft visual studio\vc98\include\unknwn.h(343) : warning C4259: 'long __stdcall IUnknown::QueryInterface(const struct _GUID &,void ** )' : pure virtual function was not defined
c:\program files\microsoft visual studio\vc98\include\unknwn.h(109) : see declaration of 'QueryInterface'
c:\program files\microsoft visual studio\vc98\include\unknwn.h(343) : warning C4259: 'unsigned long __stdcall IUnknown::AddRef(void)' : pure virtual function was not defined
c:\program files\microsoft visual studio\vc98\include\unknwn.h(113) : see declaration of 'AddRef'
c:\program files\microsoft visual studio\vc98\include\unknwn.h(343) : warning C4259: 'unsigned long __stdcall IUnknown::Release(void)' : pure virtual function was not defined
c:\program files\microsoft visual studio\vc98\include\unknwn.h(115) : see declaration of 'Release'
c:\program files\microsoft visual studio\vc98\include\unknwn.h(343) : error C2059: syntax error : '*'
I think unknwn.h is internal file of Visual studio.
I searched on microsoft site and list of bugs removed in SP5 donot include errors listed above.
Can anyone please tell the reason ? 
Any suggestion will be appreciated 
Rits
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Rits Kwatra wrote:
I searched on microsoft site and list of bugs removed in SP5 donot include errors listed above.
Yes, but any SP updates may indirectly fix your problem. Personally I would not develop any VC6 application without first updating to SP5 as it has solved a few issues I'd had before.
So do not underestimate the impact that a Service Pack can have. Also, since you are porting to XP, you should download and install the latest Windows SDK. I have the Feb 2003 install. The one that came with VS6 is just way out of date!.
I Dream of Absolute Zero
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I reinstalled the visual studio and now it is working fine. May be some files was corrupted
Rits
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Hello everyone, i'm looking for good region clipping algorithms, like you can see for example in XARA. Where can i find good sources of such algorithms? I worked with CombineRgn - this was not what i looked for, it clips regions with load of rectangular things. And what will happen if i clip the ragion like E with region like O. Really i have to get more than 3 different regions - so, i hope you'll understand me
Thanks...
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Have a look at gpc (General Polygon Clipper)[^]. It should do exactly what you need (and probably more)
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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Thank YOU very MUCH!!!! You saved my life
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Friends,
In this era of .NET we frequntly hear the term Common Language Runtime. The term "runtime" was also heard before but not as frequently used these days.
My question is that What is Runtime? Consider the following C++ code:
#include <iostream>
void main(void)
{
std::cout << "Hello World";
}
The C++ compiler will generate the exe which contains the machine code of the above code. So why we need runtime ?
Imtiaz
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Hi Imitaiz,
That's right. when we have the machine code of the C++ code, we can run it on another machine provided we have the C coompiler for that. But we cannot the code of C in another language and here comes the role of the RunTime
According to my Knowledge, when we talk about runtime then it means we are not talking about the machine code but we are talking about the intermediate code of the program. and this intermediate code is then run by the runtime. Runtime can include other features like in .net we can combine different programs written in different language under one RunTime.
Rits
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Hello!
I'm new here and would like to download code samples from here. But I'm afraid that my computer op could be damaged. How safe are the samples?
Thnx in advance!
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There have been a couple of instances where code has contained a virus (I think it was two articles by the same author). Those pieces of code have been removed, and I don't expect there are any problems any more. If you have any doubt, check the code first. I don't have any concerns with the code I download from here, but I rarely use it without looking at the code first, simply so I know what I expect it to do.
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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Hello,
I'm creating an ActiveX control that consists of various standard MFC controls laid out on a CTabCtrl. I want to enforce a minimum size for the ActiveX control but I can't figure out how to do it. I can force a minimum size for the CTabCtrl, but this of course doesn't restrict the size of the ActiveX object.
Any help would be greatly appreciated.
BTW: If my question demonstrates a fundamental lack of knowledge, be so kind as to point me in the right direction so I may fill the void.
Thanks!
Ian
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hi, i'm looking for sample codes in c/c++ to compute multiplicative inverse in finite field (i'm interested in GF(2^8)) using extended euclidean algorithm. anybody can help me on this? or anybody can give some advice on designing the code?
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How does one create a directory using CreateDirectory() with permissions of the parent directory ?
This is knowing that the parent directory can be access by all users who login to the system (computer).
Thanks in advance
Tony Teveris
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MSDN says for CreateDirectory()
If lpSecurityAttributes is NULL, the directory gets a default security descriptor. The ACLs in the default security descriptor for a directory are inherited from its parent directory.
So if you pass NULL in for the lpSecurityAttributes parameter, does that work? What permissions does the created directory have when you create it, if they aren't those of the parent?
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After migrating to the new Visual Studio .NET 2003 IDE from Visual Studio 6, I am having a hard time finding the "set tab order" thing. The documentation claims this is under the view menu, but I can't see it.
Anyone tried to set the tab order for a CFormView in an MFC app in the .NET IDE? Is this just another one of those things that no longer works in the new IDE, that used to work in the previous?
Thanks
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Aaron Schaefer wrote:
Anyone tried to set the tab order for a CFormView in an MFC app in the .NET IDE
Yes... it's NOT under the View menu. Look under the Format menu. Format->Tab Order
Artificial intelligence is no match for natural
stupidity.
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Hello !
When i add "Microsoft FlexGrid control, version 6.0" to my dialog, it open a message box with a error text line below :
The ActiveX control cannot be instantiated.
And:
The ActiveX control "Microsoft FlexGrid control, version 6.0" could not be instantiated because it requires a design time lincese.
What can i do ?
I used Visual C++ 6.0
Please help me.
Thank you.
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I used Visual C++ 6.0
Thank you.
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I used Visual C++ 6.0 controls in Visual C++ 6.0
Please help me.
Than you.
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Did you install the registry keys for the controls?
Artificial intelligence is no match for natural
stupidity.
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Hello,
I have written a C++ program. I have compiled,built and executed the program. It works fine. I want to be able to send the output on the screen to a printer. How can I nclude this option. Can I use MFC? In other words how do I display my program on a page that contains the options for print view, print,save etc.
Thank You
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