Re: Is this a Memory Issue? - C / C++ / MFC Discussion Boards

Re: Temporary Internet Files ?

Larsson10-Mar-05 2:58

Larsson

10-Mar-05 2:58

Thanks!

Re: Temporary Internet Files ?

Larsson10-Mar-05 3:20

Larsson

10-Mar-05 3:20

Hmmmmm,
I dont get it to work can you please send me a code exemple?

Re: Temporary Internet Files ?

David Crow10-Mar-05 5:00

David Crow

10-Mar-05 5:00

Which doesn't mean a whole lot if you do not provide any context. Do you get a compiler error? Linker error? Runtime error? Fired assertion? Unhandled exception? How about a code snippet of what you have and what it is doing?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Re: Temporary Internet Files ?

ThatsAlok10-Mar-05 19:26

ThatsAlok

10-Mar-05 19:26

Yeah here Is sample Code

TCHAR szInternetCachePath[MAX_PATH];

if(SHGetSpecialFolderPath(
NULL,//hwndOwner
szInternetCachePath, // lpszPath
CSIDL_INTERNET_CACHE ,// nFolder
FALSE /// fCreate: so you want to create that Smile | :)

))
{
MessageBox(szInternetCachePath,"You Internet cache folderpath");

}
else
{
MessageBox("Soory I am Failed");

}

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Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

Re: Temporary Internet Files ?

Larsson11-Mar-05 23:04

Larsson

11-Mar-05 23:04

Thanks.

NMSMTP component C++ builder 6

PhilWalker10-Mar-05 2:41

PhilWalker

10-Mar-05 2:41

I am creating an email client using c++ builder 6, but am having problems with the NMSMTP component. I am specifying the recipients address (using the NMSMTP1->PostMessage->ToAddress->Text=Edit1->Text; command) but am getting the error - '503 no recipient(s).' when I try to send an email. The program stops when it tries to run the NMSMTP1->SendMail(); command.

Any help would be greatly appreciated.

Cheers

Phil

Is this a Memory Issue?

brdavid10-Mar-05 2:38

brdavid

10-Mar-05 2:38

I am running into something of a problem when I open one too many documents with my application. The application no longer opens any dialogs such as the new or open dialog windows. I get a system ping whenever I try to open a document in VC++ if I am running under debug and windows explorer is almost completely locked. I can click folders but it quickly goes back to the folder selected therefore doing nothing. I think the CPU meter from the Windows Task Manager is peaked at 100% but I have no way of checking where in the code things seem to be hung up. The system ping sounds like an error window but there isn't an error window appearing.

Anyone have any ideas? May I be outextending the memory? I have Database ADO connections open but I have programmed them to only have the focused window have connections to the database. The other windows will close the database connections until focused.

Hopefully I have given enough info.

Thanks!

Re: Is this a Memory Issue?

Serge Krynine10-Mar-05 12:10

Serge Krynine

10-Mar-05 12:10

This looks more like resource exhaustion rather memory exhaustion; I’ve seen similar behaviour when applications create too many socket connections with dedicated threads serving such socket connections.

Re: Is this a Memory Issue?

brdavid11-Mar-05 4:04

brdavid

11-Mar-05 4:04

Can you elaborate a little? I'm slightly confused. Resource as in Dialogue resource? Database connection resource? There isn't any internet logic nor do I think I have coded thread logic. I'm just trying to figure out where I should be looking in my code for this issue. I stepped through and noticed that the OpenDocument method will parse through fine however when it returns from this method into whatever method called it, then it starts to act this way.

Thanks!

USB driver

SJolly10-Mar-05 2:01

SJolly

10-Mar-05 2:01

Hi all,

I am trying to write a driver for a USB device. I have taken the following steps:

> Built checked version of BulkUSB from DDK samples.
> Adapted the .inf file provided with the sample so that the vendor and product id match those of the device I'm writing the driver for.
> Installed the driver using the wizzard - this seems to work fine and the device is reported as working properly.

However, no debug messages come out of the system, no matter what I do with the device (unplug/insert/attempt to connect etc).

Can anyone see anything I may have missed?

Thanks in advance,
Simon

Re: USB driver

Alexander ^M.,10-Mar-05 2:13

Alexander ^M.,

10-Mar-05 2:13

What about checking if the drivers was loaded?

Don't try it, just do it! Wink | ;-)

Re: USB driver

SJolly10-Mar-05 2:19

SJolly

10-Mar-05 2:19

How do I do that?

Re: USB driver

Branislav11-Mar-05 19:20

Branislav

11-Mar-05 19:20

Where did you expect to receive debugger message? You have to have some debugging monitor. I used MONITOR (Vireo Software) before 5 years which displays of debug output from device drivers, and provides driver loading/unloading facilities for Windows 95, 98, and NT. On Windows NT, a supporting kernel mode driver (DBGMSG.SYS) captures debug output sent to DbgPrint.
Now, I think you can find something similar on www.osr.com or through a seek on internet.

How to send an SIP response ? Please help

Raghav SR10-Mar-05 1:54

Raghav SR

10-Mar-05 1:54

I am strugling with how to send or recieve the SIP request and responses, I want to know how they are done in VC++.

Thank you

to the C gurus (malloc,realloc)

ThinkingPrometheus10-Mar-05 1:40

ThinkingPrometheus

10-Mar-05 1:40

hiho@ll

i have a little problem with malloc and realloc! (i must use it! can't use new or delete)

i have a struct which holds some information of a url
struct info{
char *info1;
char *info2;
};

and i have a array of those structures:
struct info **myurlinfo;

ok now i want to dynamically allocate and expand the array with malloc, realloc.

my code:
myurlinfo=(info**)malloc(sizeof(struct info*));
and later
myurlinfo=(info**)malloc(sizeof(struct info*));

and then the array elements
myurlinfo[i]=calloc(1,sizeof(struct info));

this works 3 times and then i get a heap exception
why?

i'm sure i have an allocation bug in my code
but whats wrong?

thx@ll

Re: to the C gurus (malloc,realloc)

Cedric Moonen10-Mar-05 3:06

Cedric Moonen

10-Mar-05 3:06

I think you are messing up with pointers Wink | ;)

:

ThinkingPrometheus wrote:
and i have a array of those structures:
struct info **myurlinfo;

No, there you don't have an array of those structures but an array of POINTERS to these structure. Why do you want to use an array of pointers instead of an array of structure ??
You could simply do that:

struct info *myurlinfo;<br />
myurlinfo=calloc(3,sizeof(struct info));<br />

for example to allocate an array of three structures... Then to access one of these structures:

myurlinfo[0].info2 (or [1] or [2] depending of the structure you want to access to)

Notice also that the members (info1 and info2) of your structures are not initialized yet so they point to invalid memory locations. It would be easier to use fixed sized arrays:

struct info{<br />
char info1[255];<br />
char info2[255];<br />
};<br />

In this case you won't need to allocate and free the memory yourself (you need to be sure of course that the strings won't be longer than the size you provided...)

Hope this helps

Re: to the C gurus (malloc,realloc)

ThinkingPrometheus14-Mar-05 1:25

ThinkingPrometheus

14-Mar-05 1:25

ok
hmm
it works for the malloc,
but it doesn't for the realloc

the problem is that i don't know how big the array will be

and the reason why i used struct info **myurlinfo was that i give it to a function

which means out of my function i use struct info *myurlinfo;

and to change the array i have to use in the function struct info **myurlinfo

i try to allocate the memory first with malloc();
(*myurlinfo)=(struct urlinfo*)malloc(sizeof(struct urlinfo));

and if i need a bigger array

realloc(*myurlinfo,sizeof(struct urlinfo));

first i had
(*myurlinfo)=(struct urlinfo*)realloc(*myurlinfo,sizeof(struct urlinfo));

but realloc returns a pointer to the NEW allocated buffer
but i need to resize the array
so it must be
realloc(*myurlinfo,sizeof(struct urlinfo));

but it doesn't work

if i resize the *myurlinfo i get a memory exception
why!? Frown | :(

thx

Re: to the C gurus (malloc,realloc)

David Crow10-Mar-05 3:15

David Crow

10-Mar-05 3:15

Are you sure you don't need something like this:

struct info
{
    char *info1;
    char *info2;
} *myinfo;
 
void main( void )
{
    myinfo = (struct info *) malloc(sizeof(struct info) * 100);
 
    myinfo[0].info1  = (char *) malloc(256);
    myinfo[0].info2  = (char *) malloc(256);
    strcpy(myinfo[0].info1, "some text here");
    strcpy(myinfo[0].info2, "some more text here");
 
    myinfo[1].info1  = (char *) malloc(256);
    myinfo[1].info2  = (char *) malloc(256);
 
    myinfo[2].info1  = (char *) malloc(256);
    myinfo[2].info2  = (char *) malloc(256);
    ...
    myinfo[99].info1 = (char *) malloc(256);
    myinfo[99].info2 = (char *) malloc(256);
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Re: to the C gurus (malloc,realloc)

ThinkingPrometheus10-Mar-05 4:09

ThinkingPrometheus

10-Mar-05 4:09

well

i think i needed both Wink | ;)

thx@ll

Network Metrics

asv10-Mar-05 1:40

asv

10-Mar-05 1:40

Hi,
How do I get the following info

1.Data packets in per second
2.Data packets out per second
3.Errors for receiving packets per second
4.Errors for sending packets per second
5.Collisions per second

Advace Thanks.

dadsadasd

Re: Network Metrics

ThatsAlok10-Mar-05 1:46

ThatsAlok

10-Mar-05 1:46

IPHelper api will help you in this case,

look at this article to know more about IpHelper apis
http://www.codeproject.com/internet/IPHelper.asp[^]

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Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

insert PropertySheet into FormView

rgchezhian10-Mar-05 1:36

rgchezhian

10-Mar-05 1:36

I have created a property sheet with three property pages.
and i created a FormView?.How do i include a propert sheet into in a formview?

Re: insert PropertySheet into FormView

ur_unholyness10-Mar-05 6:52

ur_unholyness

10-Mar-05 6:52

Check out this article

http://www.codeguru.com/Cpp/controls/propertysheet/article.php/c591/[^]

long live the dEvIL

duration of a mpeg2 file

madretierra10-Mar-05 0:41

madretierra

10-Mar-05 0:41

Hello hello,

does somebody know how to get the duration of a mpeg2 file ?
I am looking for hours on internet, there is no way to find out !

Please help, if you can ! Have a nice day,
alain

There is no way to happiness, happiness is the way !

how to create client/server program

javad_20059-Mar-05 23:59

javad_2005

9-Mar-05 23:59

i want to create program server\client
that has two client and one server
i want these clients to send message to server to gather and the server should send message to client too

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.