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Thanks for replying!
The reason I was told of the incompatibility of both versions, was that the version being installed would overwrite (or partially overwrite) some folders of the previously existing version, which you'll not find out until later when you run certain applications that were created under the previous version.
Because I have hundreds of applications developed under VC6, I would hate to fine out that some of them may experience certain anomalies due to the concurrency of a second version.
William
Fortes in fide et opere!
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Generally speaking, it's OK but there may well be some obscure problems. At the place I left a while back I was told that merely having VC++ 7.1 installed broke their existing VC6 app. However, their app. was very complicated - involvong VC6, COM/ATL, VB, Tuxedo, etc.
Kevin
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Thanks for replying!
I appreciate it.
William
Fortes in fide et opere!
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I've had side-by-side installations of VC6, VS.NET 2002, and VS.NET 2003 on several machines. They coexist nicely, and don't interfere with one another. I've not heard anything one way or another about VS.NET 2005 (the beta).
The only thing to be careful of is that they will upgrade their predecessor's project files if you're not careful, and the upgrade is one way (although there are converters out there, at least to revert from .NET 2003 back to 2002).
Software Zen: delete this;
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Thanks for replying.
Does the upgrade to those project files occur only when you activate those particular applications, or does it happen as part of the installation process (that it upgrades ALL such files)?
Perhaps that's what those people were talking about when they mentioned about files getting written over.
William
Fortes in fide et opere!
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WREY wrote:
Does the upgrade to those project files occur only when you activate those particular applications, or does it happen as part of the installation process (that it upgrades ALL such files)?
The update only occurs when you open the project into the new compiler. It does ask you if you want to update the files however.
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Walliams (Little Britain)
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Thanks for replying, and expressing that bit of clarity.
I appreciate it.
William
Fortes in fide et opere!
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VS.NET 2005 is much smarter than the previous IDEs regarding "conversions". When you double click a solution, it will launch a "version selector". So based on the contents of the solution file, it will start the correct IDE. Very nice feature indeed. It also shows the version number of the IDE used to create the solution file, in the icon label.
I think that happened in Beta 2. Someone in the VS.NET department should get a raise.
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Cool.
William
Fortes in fide et opere!
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Howdy im new at this website witch i visited tnx to a college bud recomendation. Pls forgive my english im from Argentina
Very well this are my questions:
I need help at using qsort algorithm witch is included with borland 5 at stdlib.h
Help says
void qsort(void *base, size_t nelem, size_t width, int (_USERENTRY *fcmp)(const void *, const void *));
so that is basic chineese to me, i dont get this out look:
i call the function with this, example:
qsort( name_of_array , a_number(for what), NumberOfelementOfTheArray, a_wierd_function_IdontGet )
any ideas??
Second, i need any help i could get in how to get a window list working on borland 5, Thanks to anyone who can help. Saludos!
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Look here[^] for an explanation and sample of the qsort algorithm.
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
Honoured as one of The Most Helpful Members of 2004
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tnx that did help, but i still do not understant the last parameter...
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It's the comparison routine that qsort() will call several times during the sort, passing pointers to two array elements on each call.
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Does Microsoft ever advocate changing MFC source code ?
If Yes in what case ?
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What? i don't understand your question...
cya !
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I would not change MFC's source code, anyway, we don't really have to it, only some part of it for debugging purpose.
but again, what is the question ?
Maximilien Lincourt
Your Head A Splode - Strong Bad
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I think it is not a good idea to change MFC library, because it makes your code extremely unportable and maybe unstable.
I think there are several other alternatives like:
1) Derive an object and override some functions
2) Build a new object similar to an MFC object (it is alowed to "learn" by reading MFC source code)
3) Hook some GUI object
4) Etcetera...
Best regards,
Jaime.
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MFC is well tested code, and to the most extent reliable( ignore some of the bugs, because everyone ll do some mistakes). obviously MS encourages you to add extra functionality to the MFC classes by deriving the classes and overriding the classes. It provides the only basic framework. With the standard classes that it provides, its almost impossile to create the look and feel application in the crazy GUI world
VC++ programmer
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Check the headers they say to never edit MFC code.
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I wrote this CTreeCtrl-based control and put it in a .dll
The control consists of a dialog/resource class DIALOG_TREE and a private
tree-manipulating class.
Now to use this control in a app, I create an empty dialog as a placeholder for the control, then I declare a global pointer to the class
DIALOG_TREE* pTreeDialog;]
then in DoDataExchange()
pTreeDialog=new DIALOG_TREE();<br />
pTreeDialog->Create(IDD_DIALOG_TREE,this);<br />
pTreeDialog->SetWindowPos(NULL,x+25,y,cx,cy,SWP_SHOWWINDOW);<br />
pTreeDialog->ShowWindow(SW_SHOW);
There are two problems which I can't seem to be able to solve:
i. I would like to call the control directly (response = pTreeDialog->do Modal())
so I would be able to react. (and maybe dispense with the empty dialog in the app resources)
ii. The tree manipulating class builds a list of items and I can't seem to succeed
passing the list back to the client app.
Any suggestions would be appreciated.
TIA
alex
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Hi everyone,
I need to open CFileDialog window when the root of the folders' tree can be set differently from the Desktop. This way I can require the user to choose a directory from a specific part of the files system.
I tried to look in CFileDialog and haven't found a parameter that can set the folders' root.
If you know how this can be done with CFileDialog or have a code that might help me to implemet this request, please let me know.
Lots of thanks,
Gidi Gal
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CFileDialog has a member m_ofn, which is an OPENFILENAME structure. In that structure, you have to set the lpstrInitialDir variable to point to a string containg the folder in question.
CFileDialog FileDialog(TRUE);
FileDialog.m_ofn.lpstrInitialDir = "C:\\MyDirectory";
FileDialog.DoModal();
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
Honoured as one of The Most Helpful Members of 2004
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Hi PJ,
Thanks for your reply. I tried it, but it does not set the root directory to be "C:\\MyDirectory",
only the initial displayed directory. This means that the user can choose for example the desktop directory. I'd like to display a directories' tree that its root will be "C:\\MyDirectory" with no possibility for the user to pick directory above it.
Thanks,
Gidi Gal
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Restricting user's choices like that is something I have never done, but I would start by looking at the CFileDialog::OnFolderChange() function (CDN_FOLDERCHANGE notification) and trying to stop the user if they change to a directory out of the root specified. Maybe also handle the OnFileNameChange() and OnFileNameOK() functions.
Good luck 
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
Honoured as one of The Most Helpful Members of 2004
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Hi,
I've written a piece of code that creates 10 threads (CreateThread) that poll 10 Transactional MSMQ message queues using MQReceiveMessage (check the url at the bottom). I've played around with the time out parameter in MQReceiveMessage. At the moment it's set to 5000ms??? (what value do you suggest?).
The same Message Queue code that I've written and I've used in a single threaded application works like lightning. 100,000 x 257 byte long messages are received from a private queue in 30 seconds.
My multithreaded app takes 10 seconds to read 10 messages from 10 transactional queues.
The CPU usage of my app is 99!!!
The core of my thread code follows...
HANDLE hQueue = A Valid Queue Handle - I used MQOpenQueue to open queue the same way the MSDN example at the bottom does it.
char pMessage[4096]; this is a buffer big enough to handle MSMQ messages.
s_msmq_message *in_mess is a structure of the message;
int thisListener is a unique integer [0 to 9] identifying this thread;
int volatile is_continue; This is 1 while my app is running and 0 when the user hits the close button.
HRESULT hr = S_OK;
HANDLE mutexThreadListeners is a global mutex used to sync calls to HandleDataMessage.
DLG is a global pointer to my main dialog. ie. DLG = this;
while(is_continue)
memset(pMessage, 0, sizeof(pMessage));
hr = mq.ReceiveTransactionalMessage(hQueue, pMessage, sizeof(pMessage)); //mq - my MSMQ wrapper
if(hr != S_OK)
{
in_mess = (s_msmq_message*)pMessage;
wait_status = WaitForSingleObject(mutexThreadListeners, INFINITE);
//HandleDataMessage(in_mess, thisListener);
iRecordCount++;
iTotalMessages += 1;
// **** sprintf(strRecordCount, "Processed %d Records", DLG->iTotalMessages);
// **** DLG->m_labelRecordCount.SetWindowText(strRecordCount);
ReleaseMutex(mutexThreadListeners);
}
if(hr == MQ_ERROR_IO_TIMEOUT)
{
TRACE1("\n%sMessage Queue Empty.", strQueueArray[thisListener]);
}
SwitchToThread();
}
What else is really wierd - when I remove the comments from the lines marked with ****, some of my threads wont close. I call WaitForMultipleObjects(10, hThreadListeners, TRUE, INFINITE) in OnClose and my program hangs. If I set WaitForMultipleObjects to time out I get all sorts of nasty access violations.
If I remove these lines, my application closes down like a dream, but it still hogs the CPU!!!
How can I stop these threads from hogging CPU time? And why do the lines marked with **** cause my app not to close properly?
The MSMQ code I use to receive and open queues can be found at...
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/msmq/msmq_using_reading_msg_6feh.asp[^]
I modified the function to receive a queue handle as a parameter - so I don't open and close the queue for each message.
Please Help, Thanks in advance.
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