Error in CHKSTK.ASM - C / C++ / MFC Discussion Boards

David Crow11-May-05 4:34

11-May-05 4:34

Blake Miller wrote:
...call LogonUser to validate it.

Good idea, but the process that calls LogonUser() must have the SE_TCB_NAME privilege. This is not necessary with Windows XP. Another restriction is that LogonUser() is not available on Windows 9x or ME.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Win2k/WinXP password authentication

DarkCloud1411-May-05 10:37

DarkCloud14

11-May-05 10:37

Nice this works fine Big Grin | :-D

I just needed it for Win2k/WinXP not Win98 so thats OK...

THX

Re: Win2k/WinXP password authentication

David Crow11-May-05 10:58

David Crow

11-May-05 10:58

How about LookupAccountName()?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Win2k/WinXP password authentication

Blake Miller12-May-05 11:36

Blake Miller

12-May-05 11:36

Well, DarkCloud DID mention he wanted to test the password in the first message... I am curious in what sequence of function calls LookupAccountName would be used to verify the password?

Re: Win2k/WinXP password authentication

David Crow13-May-05 2:05

David Crow

13-May-05 2:05

Blake Miller wrote:
I am curious in what sequence of function calls LookupAccountName would be used to verify the password?

As am I. My post was in reference to someone wanting the domain of the current user. I think it was posted Wednesday or Thursday, but that post has been deleted. It's odd that my post would get (randomly) attached to another thread.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Win2k/WinXP password authentication

Blake Miller13-May-05 5:56

Blake Miller

13-May-05 5:56

That would explain a LOT of wierdness in the universe Unsure | :~

I did think it odd you would post something seemingly irrelevant to the current thread. So I was indeed curious how that function would have helped.
Thanks Wink | ;)

Problem passing parameter in DLL writen in Visual Basic

kstang11-May-05 3:55

kstang

11-May-05 3:55

Hi guys,

I am having problem passing BSTR* parameter into a Visual Basic DLL. Below is the function of that particular DLL:

The sLotID is the parameter that I need to pass in and for the file_name and serr is the parameters passing back from the DLL.

CString _Class1::LotData(BSTR* sLotID, BSTR* file_name, BSTR* serr)
{
CString result;
static BYTE parms[] =
VTS_PBSTR VTS_PBSTR VTS_PBSTR;
InvokeHelper(0x60030008, DISPATCH_METHOD, VT_BSTR, (void*)&result, parms,sLotID, file_name, serr);
return result;
}

In my code, this is what I do:

_Class1 ServerClass;
CString StringReceived = "123456";
BSTR sLotID = StringReceived.AllocSysString();

ProdType=ServerClass.LotData(&sLotID, &file_name, &serr);

Note: The function totally cannot receive the sLotID that I pass in, Please help....

ks tang
AT ENGINEERING

Error in CHKSTK.ASM

houari_id11-May-05 3:39

houari_id

11-May-05 3:39

Dear all,

I run my program using F5 (which will stops in certain line when an error found), and it stops at file CHKSTK.ASM in this highlighted line:

probepages:<br />
        sub     ecx,_PAGESIZE_          ; yes, move down a page<br />
        sub     eax,_PAGESIZE_          ; adjust request and...<br />
<br />
        <span style="background-color: yellow">test    dword ptr [ecx],eax     ; ...probe it</span><br />
<br />
        cmp     eax,_PAGESIZE_          ; more than one page requested?<br />
        jae     short probepages        ; no

I wonder what kind of error that cause this?

Thanks in advance

Re: Error in CHKSTK.ASM

Alexander ^M.,12-May-05 7:27

Alexander ^M.,

12-May-05 7:27

The code you posted is not enough to find out what is wrong. What, e.g., is the value ecx gets initialized with?

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

Re: Error in CHKSTK.ASM

houari_id12-May-05 10:26

houari_id

12-May-05 10:26

the ecx value is 206832, and the eax value is 15741120
I don't understand what does the ecx and the eax mean and how it gets initialized.
However, before the debug window bring me to CHKSTK.ASM, the error dialog box said 'Unhandled exception... ..Stack Overflow'.

thanks

Re: Error in CHKSTK.ASM

cmk12-May-05 21:15

cmk

12-May-05 21:15

The error said stack overflow.
You are looking in the wrong place.
chkstk.asm is where the program actually ran out of stack memory, but your problem is a design issue.
When the error happens look at the call stack in the debugger to see what function(s) were called to produce the overflow.

You either:

1. Tried to allocate too much memory from the stack.
e.g.
void badfunc( void )
{
long badvar[128*1024];
...
}

or,

2. Got caught in a deep function call loop that ended with the same effect as 1.
e.g. for small values this is fine, for larger values it will blow the stack
long badrecurse( long R )
{
long r = 1; // alloc 4 bytes off stack - each iteration!
if( R > 1 ) r = badrecurse(R-1);
return(R * r);
}

...cmk

Save the whales - collect the whole set

MFC Interface Problem

acinosanduce11-May-05 3:21

acinosanduce

11-May-05 3:21

First of all I have to say that this is my first MFC interface I've ever built for a program that works perfectly under DOS.
The problem is next ... The simulation uses loop that ends only on exit command (something like never-ending loop). Interface is perfect in point that it does what it has to do ... but the problem occurs about the commands ... When I start the program it starts with updateing the interface with the caculations but the commands are not accessible (in fact - they are, but the pressing on them causes the simulation to go to "Not reponding" - it looks like the overloading memory or something like that).
I hope that I decribed it well ... so please help ..
And keep in mind that I am beginner in this kind a programming, so please do not post too complicate solutions Smile | :)

Re: MFC Interface Problem

David Crow11-May-05 3:23

David Crow

11-May-05 3:23

acinosanduce wrote:
I hope that I decribed it well ... so please help ..

What exactly is it that you need help with?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: MFC Interface Problem

acinosanduce11-May-05 3:34

acinosanduce

11-May-05 3:34

I want to make commands (buttons) on the main window not going to not responding mode ...
More in detail ::
On the main window there are three buttons Start, Pause and Exit ...
On Start it starts the simulation (never-ending loop) and works perfectly in updating data on the window ... but in the same time I'm not able to click on the other buttons like Pause or Exit - because the program stucks (looks like memory overloading or something) ...
So the major question is :: Where did I make a mistake?? What sould I do or implement??

Re: MFC Interface Problem

David Crow11-May-05 3:47

David Crow

11-May-05 3:47

Your application currently only has one message pump, and it is busy doing whatever the Start button told it to do. You need to create a secondary thread to do this work, thus leaving the primary thread free to handle the UI stuff. See here and here.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: MFC Interface Problem

acinosanduce11-May-05 3:52

acinosanduce

11-May-05 3:52

I will check it now ... thanx in advance if it will solve the problem

Re: MFC Interface Problem

Ravi Bhavnani11-May-05 4:19

Ravi Bhavnani

11-May-05 4:19

In addition to the links suggested by David, see this[^] article, specifically the section "Responding to user input while performing a long task".

/ravi

My new year's resolution: 2048 x 1536
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Re: MFC Interface Problem

ddmcr11-May-05 4:04

ddmcr

11-May-05 4:04

You need to use threads;

Simply declare global function in your ...Dlg.cpp file :

UINT Thread (LPVOID pParam)
{

//// Here write your loop

for(...)
{
...
}

return 0;
}

and then add doubleclick on the Start button and add this line of code.

{
...
AfxBeginThread(Thread,0);
...
}

you can also manage this thread by changing abovewritten code with this :

CWinThread * thread = AfxBeginThread(Thread,0);

//if you want to pause this thread then use Suspend() func

thread->Suspend();

//to resume it call

thread->Resume();

Good luck

m0n0

HELP AGAIN

acinosanduce12-May-05 10:24

acinosanduce

12-May-05 10:24

Thanx guys .. I implemented this working thread (somthing like you suggested) .. but I have one another problem ...

In that working thread I am using UpdateData functions ... and the program compiles prefectly, but when I'm starting it I'm getting ::
Debug Assertion Failure!
File: wincore.cpp
Line: 884

Pressing on ignore button repeats the Assert but in the background I can see that aplication runs well.

So, the question is :: what should I write instead of UpdateData(T/F)???

Just to say that application is Dialog based (so it has only one window)!

updating user32.lib

Kharfax11-May-05 3:17

Kharfax

11-May-05 3:17

Hi, im working on a Single Sing On system using Visual C 6 SP 5.
I need to use the user32 method AllowSetForegroundWindow, only available in newer versions of user32.lib

There is any way i can update the libs and .h included in VC 6?

Thanks in advance

Re: updating user32.lib

David Crow11-May-05 3:21

David Crow

11-May-05 3:21

Kharfax wrote:
There is any way i can update the libs and .h included in VC 6?

Are you using the newest Visual Studio SP and Platform SDK?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: updating user32.lib

Kharfax11-May-05 3:30

Kharfax

11-May-05 3:30

Im actually downloading the SP6 but dont say anything about updating the included libraries.

My platform SDK, im almost sure is really old, but i cant find it to download.

Maybe is this "Windows® Server 2003 SP1 Platform SDK"?

Re: updating user32.lib

Kharfax11-May-05 3:44

Kharfax

11-May-05 3:44

Yes... Is that, now i should wait to download 400 MB

Thanks

Re: updating user32.lib

David Crow11-May-05 3:50

David Crow

11-May-05 3:50

Kharfax wrote:
Maybe is this "Windows® Server 2003 SP1 Platform SDK"?

Yes. I'm not sure why MS deciced to give it such a name. If connection speed is the issue and you have access to a library with a broadband connection and a CD burner, see if they will let you download it. If you don't want to download it, you can buy the CD. Seems like it is around $10.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

error C2664: 'TextOutW' : cannot convert parameter 4 from 'char [10]' to 'const unsigned short *'

zeyun11-May-05 2:40

zeyun

11-May-05 2:40

hi, i'm implementing the dijkstra's algorithm. when i complied the .dll file here comes out teh errors:

error C2664: 'TextOutW' : cannot convert parameter 4 from 'char [10]' to 'const unsigned short *'

could anyone help me deal with it?

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