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how can I let MSDEV know that it need to search every subdirectory for any *.h files?
I have a root directory as .\src
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I wrote a simple program on UNIX to save a number 79.8 in a file. Then I ftp this file on system running Windows 2000. Now I tried to retreived data using fread() function. But I the number was no 79.8. Later on I wrote same program in Windows and now I obtained 79.8 with fread(). Then I viewed both files ultra edit and found that four bytes [floating point number] were written in different ways. I have forggoten the orignal patteren but it may be like this:
In Windows File : B1 B2 B3 B4
In Unix file : B3 B4 B2 B1
I will be thankful if some one can explain more.
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sounds like a Big Endian and Little Endian problem.
one way to solve it is:
transfer the file in binary format, and do ntohs() or ntohl().
HTH.
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Thanks.
I used CFtpConnection and CInternetSession classes to transfer file. How can I use ntohs() or ntohl().
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The systems are using diffrent byte ordering (little endian and big endian are terms for it), it's given by hardware (CPU). If you need to use the file on both platforms, you have two possibilities:
- Choose one byte ordering and convert it on one of the platforms.
- Use text file.
Pavel
Sonork 100.15206
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Dear all,
I tried to install network protocol driver in my VC++ application. But don't know which lib should add to the project for INetCfg COM interface, which are declared in NetCfgx.h
can anybody help me?
Thanks
Laura
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If it is COM, you don't have to link to a specific library. You only need the definitions (in a .h or by #importing it).
Michel
It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.
- TreeBeard
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Old method with PCL could select it using a font ID.
File output direct to the port.
However now I am using a Printer DC and I dont have a CFont object to select.
How can I select the printer font in an MFC environment?
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You can select a printer font inside OnBeginPrint() and OnPrint().
pDC->SelectObject(theFont);
Kuphryn
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As I said.. I do not have a CFont object to select.
The font is only in the printers memory.
It is not a TrueType windows font and therfore cannot be loaded into a CFont object.
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Look for Article on Microsoft site -> "How To Use Printer Device Fonts"
It might be of help, if you need to use Printer Fonts.
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Does a larger executable always mean a slower program? I have a 2mb exe and it runs fine on my 1.4Ghz machine with 512mb of ram but is almost unusable on a PII 300 with 128mb of ram. It needs to work well on older machines due to marketing issues, does pulling parts out of the main program and into DLLs increase speed?
Ed
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No, dividing your program to more DLL's doesn't help You  You will need to optimize your algorithms or data structures.
Pavel
Sonork 100.15206
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Your CODE is only using 2mb. But your DATA is using something between 128Mb and 512 Mb: let's suppose it's using about 300Mb. So, under this supposition, you are using a total memory of 302Mb.
If you divide your program in DLLs and do a pretty good (and hard) job maybe you can reduce your code memory usage by 50%. This means that your code could be loaded in 1Mb.
This means you reduced your total memory usage from 302Mb to 301Mb, after days of optimization. Does it suffice?
Do you see where you need to optimize?
My latest articles:
Desktop Bob - Instant CP notifications
XOR tricks for RAID data protection
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Does the task manager correctly report the total memory used by the application? If so it only reports about 8mb used for my exe. If this is true then does my speed problem point to slow code?
Ed
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What it is you are trying to do that needs so much memory? Forget the exe file size, and think abou the data you are tring to process.
Try and cut it down into chuncks. Using that much memory when you don't have enough on the smaller machine probably means you need to revise the way your processing your data. If you can, only load so much in at a time, and manage the swapping so that you have the most closely linked parts of data in memory at the same time to stop page faults.
I supsect that if you look at the task manager, the Page Faults and Memory Delta will be going mad.
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Good day,
I have a CDialog (dlg1) inside another modal CDialog (dlg2).
dlg1 contains a custom control ( registered ) based on a CEdit control.
When the custom control is in focus, and I press ESC, to dismiss dlg2, it's the parent dialog dlg1 that gets dismissed.
When I press a key, the ON_WM_KEYDOWN gets triggered, except for the escape key ,which triggers a OnCancel.
How do I send the OnCancel to the parent dialog ?
If I try with another CDialog ( dlg3 )that contains a CEdit inside dlg2, and press escape, it's the parent dialog that receives the OnCancel.
The custom control is a CWnd with a couple of CEdit inside, since I not too familiar with the internal of custom controls like this, could this be the problem ? Do I have to tweak with the window styles and/or any of the parentnotify messages?
Thanks.
Max.
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Can anyone tell me what this error means?
BOOL CAsyncSocket::AsyncSelect(long lEvent)
{
ASSERT(m_hSocket != INVALID_SOCKET);
_AFX_SOCK_THREAD_STATE* pState = _afxSockThreadState;
ASSERT(pState->m_hSocketWindow != NULL); <-- Errors here
return WSAAsyncSelect(m_hSocket, pState->m_hSocketWindow,
WM_SOCKET_NOTIFY, lEvent) != SOCKET_ERROR;
}
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There can be many reasons of this error. Are you passing socket object from one thread to another ????
Imran Farooqui
World first Urdu Instant Messenger[^]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Java is a tool for creating applications that torture users with its awful speed and its ugly interfaces.
Daniel Turini commenting on this article
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I create a UI Thread, inside that UI Thread I create a listening socket and I do all my accept, receive, close functions from with in the UI Thread etc...
I have also tried to do the listen and accept from the main thread then pass a handle to the UI Thread and let it do the Receive.. but that doesnt seem to work either..
When I close the UI Thread from the Main Thread I receive that error..
Any ideas?
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MFC is a bitchin bitch when it's about CAsyncSocket used in multi-threaded scenarios. MFC is commonly known for losing its own state (in fact _afxSockThreadState is a #define to AfxThreadState).
I would recommend, if you can, to rely on simple sockets instead. Lotsa CP articles and implementations out there.
She's so dirty, she threw a boomerang and it wouldn't even come back.
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I hear ya!  I plan to move from CAsyncSockets to WinSock API.. hopefully all my problems will go away.
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