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hi i want to use API PfBindInterfaceToIPAddress(ihandle,PF_IPV4,(PBYTE)"202.165.250.50") and in this i had to supply the ip adress as byte but i want to do with byte like
byte i[]={205,25,236,25};
but it gives error so i had to use as in above api but it did not work tell me how to do that.
i thinks so this function faildue to that
-- modified at 9:42 Thursday 27th July, 2006
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you could simple split the string by searching the '.' characters, but it can become mmuch more complicated if you have to check if the ip is valid...
consider this :
"304.6458.0.12"
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int i[]={202,165,250,50};
AfxMessageBox("Step 1 Done");
PBYTE ip=(PBYTE)i;
I had used this as ip but still functin does not succeed i think it has some other problem.
Tasleem Arif
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tasleem143 wrote: int i[]={202,165,250,50};
AfxMessageBox("Step 1 Done");
PBYTE ip=(PBYTE)i;
If you want a BYTE array then declare it as a byte array
BYTE i[] = {202, 165, 250, 50};
You may be right
I may be crazy
-- Billy Joel --
Within you lies the power for good - Use it!
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I'm finding a solution to make the mouse pointer to hourglass during wait for some process in my project.
Please give me some information of this.
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{
CWaitCursor foo;
...wait for some process in your project...
}
when foo goes out of scope, the cursor will become an arrow again
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If this is with MFC, use CWaitCursor . Otherwise, handle the WM_SETCURSOR message.
"Money talks. When my money starts to talk, I get a bill to shut it up." - Frank
"Judge not by the eye but by the heart." - Native American Proverb
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I use VC++ 6.0 and i have a date picker. My problem is that whenever I start the program it start with the date being set to 01.01.1970. How can I set it to start with today, let's say?
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tanarnelinistit wrote: How can I set it to start with today, let's say?
With the SetTime() method.
"Money talks. When my money starts to talk, I get a bill to shut it up." - Frank
"Judge not by the eye but by the heart." - Native American Proverb
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Hi,
I have used CRITICAL_SECTION to make my code thread safe and I was wondering if there is some way of testing it. I can call the code from two different threads and the code doesnt appear to screw up - but how do I really know that the cricial sction has blocked one thread until the other has completed rather than just being (un)lucky and both threads never actually called at the same time?
Is there something I can put in there to record that two threads have attempted to access the same resource?
TIA
Tony
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Do you always test things like that ? Did you check if the if/else statments were doing their job, or if CreateThread is really creating a new thread ?
Seriously, if you use them like it is documented, they will work how it is documented. No need to be paranoid .
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Hi,
Thanks for the reply.
Yes I do like to test stuff like that - I try to test all my code, including whether my if/else's do what I expect them to do. Not that I don't trust the compiler, but I sometimes write stuff that doesn't work - maybe its just me
So if I understand your correctly, if I 'think' I understand the documentation and it 'appears' to work - then it must be OK - non need to test it right?
I just wnated to make sure that my code is robust, no corruptions - no deadlocking - that kind of stuff. Then I can sleep at night.
Cheers
Tony
-- modified at 9:38 Thursday 27th July, 2006
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You sqid this:
softwaremonkey wrote: but how do I really know that the cricial sction has blocked one thread until the other has completed rather than just being (un)lucky and both threads never actually called at the same time?
I understood that you wanted to check if the critical section were working properly, not your code. In that case, I think it is a litle bit useless to verify things that are used by milion of people
But I understand now (yes, I know, my brain is slow today ) that you want to check your code. Something that comes to my mind: in your thread, you can simply make a very lenghty operation (like a double for loop) that is inside a locked section. Then, with the other thread, wait that the critical section is freed. Log the times in a file to see if the second thread is really waiting for the critical section. Of course this is a basic scenario but you can improve it (e.g. use a lenghty operation in both threads)
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Hi,
Thanks, I will try that.
Incidentally, I came across this intersting article about testing critical sections...
http://msdn.microsoft.com/msdnmag/issues/03/12/CriticalSections/default.aspx
It also has some code for some kind of debugging tools. I havent checked it out yet - still reading the article.
Thanks again for the help.
Tony
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A simpler test:
have a volatile bool variable with global lifetime, visible in the critical section of code.
Initialize to zero before you start the thread(s).
Directly after Lock, check reentrancyFlag == 0
set flag to 1
Upon exit, set to 0
Make sure that you never forget to reset to zero even if you exit early through return or exception (e.g. through a scopeguard[^])
For a very critical test, put a Sleep() into the protected block 8debug build only, of course), so that overlaps are much more likely.
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If you are running under a debugger, you could always manipulate two threads so that one gets into the critical section and waits (In VS .NET 2003, Right click on Threads Pane and click Freeze) , while you switch to the second thread. Then, you can allow the second thread to run. You should be able to know immediately whether the second thread blocks.
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Thanks for the replies guys,
If anyone is interested, I have also found that you can check the LockCount member of CRITICAL_SECTION to see if a thread is already in the critical section.
LockCount == -1 if the critical section is not already in use e.g.
if(lock.LockCount >= 0)
{
TRACE("Locked\n");
}
Tony
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Hi All
I have to create a GUI in turbo C++ for Dos.
and I want to give Windows like look in interface.
so can you please tell me any library for GUI which could be used in DOS.
or tell me any better approach.
Thanks
Edit/Delete Message
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Use Borland C++ 2.0 (or maybe 3.0). It comes with TurboVision. I believe 3.0 could produce oth Windows and DOS apps.... it's been over 15 years since I did a DOS app...
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997 ----- "...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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Humm, this seems Hard to do with TurboC++.
See here for some help[^]
Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_
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rajeevktripathi wrote: I have to create a GUI in turbo C++ for Dos.
and I want to give Windows like look in interface.
Never thought i'd hear this
rajeevktripathi wrote: or tell me any better approach.
Use Windows
Help your local Search & Rescue. Get lost!
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Monty2 wrote: Use Windows
He's already stated that he needs to write a DOS app, so it's obviously a *requirement* over which he has no control. People that come here and state their requirements aren't typically in the mood for off-the-cuff bullshit answers like yours.
-- modified at 9:54 Thursday 27th July, 2006
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Thanks U all
OK I will start to write such programs
can u please guide me how to proceed
But would like to tell the reason whiy I need ..
Infact working on such project where if system is crashed then system will be started with a bootable floppy ( in DOS mode) and our application will be invoked so wanna write GUI code for that part..
Please help me
Thanks
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Telling you how to write an application is WAY beyond the scope of this forum.
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997 ----- "...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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