C / C++ / MFC

how to get cview or cdocment object pointer?

13-Mar-06 5:17

here is[^] what a dialog bar is made for...

derek713-Mar-06 5:10

derek7

13-Mar-06 5:10

in MFC, I know doc and view is created in ProcessShellCommand with CSingleDocTemplate.

but I wanna get current view pointer so that I can hide it by ShowWindow(getView(), SW_HIDE);

Re: how to get cview or cdocment object pointer?

Hardy_Smith13-Mar-06 6:37

Hardy_Smith

13-Mar-06 6:37

First,

pos = AfxGetApp()->GetFirstDocTemplatePosition();
ASSERT(pos);
pTemplate=AfxGetApp()->GetNextDocTemplate(pos);
POSITION docpos=pTemplate->GetFirstDocPosition( );

get the first DocTemplate. Then you can enumerate your views.

CDocument *pDocument=NULL;
while (docpos)
{
pDocument = pTemplate->GetNextDoc(docpos);
ASSERT(pDocument);

POSITION viewpos = pDocument->GetFirstViewPosition();
while (viewpos != NULL)
{
...
}
}

Hope this helps,
Hardy.

Re: how to get cview or cdocment object pointer?

derek713-Mar-06 16:18

derek7

13-Mar-06 16:18

POSITION pos = GetFirstViewPosition();
while (pos != NULL)
{
CView* pView = GetNextView(pos);
pView->UpdateWindow();
}

if GetFirstViewPosition return a first pos.then GetNextView will return second pos view pointer. Am I right?

Passing large char array information to dll

Blubbo13-Mar-06 4:24

Blubbo

13-Mar-06 4:24

What's the best way to pass the large char array (could be up to 3000 characters long) to dll. I've tried to declare the char variable in main program,like this (char longArray[3000]) but it seems to cause eAccessViolation error during runtime.

I need to pass the large char array to my customized dll for data processing. I have already created about 12 different data processing algorthms but will have the same parameters.

Question me if you don't understand what I'm trying to explain. thanks!

Re: Passing large char array information to dll

Cedric Moonen13-Mar-06 4:36

Cedric Moonen

13-Mar-06 4:36

Did you try to use the debugger to see where it crashes ?

Line Counter for VS 2005 Beta

Priyank Bolia13-Mar-06 4:05

Priyank Bolia

13-Mar-06 4:05

I have written a Line Counter for VS 2005, any body interested can download from: http://www.priyank.in/downloads/

http://www.priyank.in/

toxcct13-Mar-06 4:22

13-Mar-06 4:22

Project Line Counter[^]... D'Oh! | :doh:

if you want to advertise, post here[^], otherwise, write an article and provide the source.

ps: there not even some doc about it Sigh | :sigh:

darkelv13-Mar-06 5:27

darkelv

13-Mar-06 5:27

.. and I am still search wth was that program installed... Wink | ;)

toxcct13-Mar-06 5:30

13-Mar-06 5:30

sorry ?

i don't understood you sir...
may you please rephrase ?

darkelv13-Mar-06 5:42

darkelv

13-Mar-06 5:42

I could understand myself either Smile | :)

... Sorry getting late here.

What I meant was, after installing that program, I couldn't find out in which folder was the program was being installed. No short cut in the Start->Program, nothing in the program files folder, nada.

toxcct13-Mar-06 5:47

13-Mar-06 5:47

you did download the zip ? lol

when i see such applications on the net with no description, no screenshots, no security that the program is secure, i don't even take the risk at installing it.

moreover, Project LineCounter is much more accurate at line counting as it counts the number of actual statements !!!!

darkelv13-Mar-06 5:52

darkelv

13-Mar-06 5:52

*shrugs* I was bored.

Maybe it finally makes me reinstall the whole OS, it's way overdue already. Smile | :)

toxcct13-Mar-06 5:53

13-Mar-06 5:53

Drivers and UNICODE_STRINGs

Ryan Binns13-Mar-06 17:19

Ryan Binns

13-Mar-06 17:19

If you want to advertise, pay for it.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Kharfax13-Mar-06 2:56

Kharfax

13-Mar-06 2:56

Hi
Im losing my mind with this driver I'm developing, is a driver to hook ntCreateFile, I need to compare a file that is being opened with a string, and decide if the operation can continue or not.
The driver is based in Anton Bassov article, Native API Hooking.

But, when I compare all I get is a blue screen.
When I remove the comparation, everything is working fine.

I tought that my problem is that RtlEqualUnicodeString just can be used at IRQL PASSIVE LEVEL, but Anton in is article about Native API hooking says that it runs at Passive Level.

So... the other problem could be the UNICODE_STRING struct, but I think that the initialization is ok.

Here is the code, do you see something wrong?

Any suggestion is welcome, thanks Big Grin | :-D

POBJECT_ATTRIBUTES pOA = NULL;

pOA = arg[3];

PUNICODE_STRING pUStr = NULL;

WCHAR buf[256] = L"\\??\\C:\\prot\\testFiles\\test.txt\0";

RtlInitUnicodeString(pUStr, buf);

DbgPrint("Checking\r\n");

if(RtlEqualUnicodeString(pUStr,(pOA->ObjectName), 0)) {
DbgPrint("blocking\r\n");
return 0;
}

DbgPrint("Continue\r\n");

Re: Drivers and UNICODE_STRINGs

Kharfax13-Mar-06 9:43

Kharfax

13-Mar-06 9:43

Solved

exception in stl set class in Release mode

Farhat Aisha13-Mar-06 2:28

13-Mar-06 2:28

Hi,
I m facing a strange problem.
I have the following code

myclass
{
set<unsigned> m_uniqueCalUIDs;
public:
int AddPoint(unsigned);
...
};
int AddPoint(unsigned uid)
{
try
{
if (m_uniqueCalUIDs.size() &&
m_uniqueCalUIDs.find(pCal->GetUID()) == m_uniqueCalUIDs.end() &&
m_nMode != MM_LINE)
return -1;
m_uniqueCalUIDs.insert(uid);
...
return 0;
}
catch(...)
{
AfxMessageBox("Unknown Exception");
return -1;
}
}

This class is defined in a DLL (and exported ofcourse) and I am instantiating it in my exe. I call this function from exe too. This code is working fine in the debug mode but it is throwing exception in release mode.
I tried to figure out why is it doing that
I have another class too in the dll that is using set and that is working fine
so can anybody help

Monty²13-Mar-06 2:33

Monty²

13-Mar-06 2:33

Farhat Aisha wrote:
_uniqueCalUIDs.find(pCal->GetUID())

what is pCal?

C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg

Farhat Aisha13-Mar-06 2:37

13-Mar-06 2:37

This is another class pointer and i have already check it before entering the function. It is not null. And i have also replaced with with a constant too like
uniqueCalUIDs.insert((unsigned)11);
but it is still throwing the exception

toxcct13-Mar-06 2:38

13-Mar-06 2:38

and the exception is... ?
where does it happen also ?

Farhat Aisha13-Mar-06 3:00

13-Mar-06 3:00

Actually it is throwing the exception on that line. I ccouldn;t get the exception type
I caught it with catch(...)

But i have finally get around with this problem when i changed my variable
from set <unsigned> to set<int>

and type-cast the argument i am passing to it

if (m_uniqueCalUIDs.size() &&
m_uniqueCalUIDs.find((int)pCal->GetUID()) == m_uniqueCalUIDs.end() &&
m_nMode != MM_LINE)
return -1;

m_uniqueCalUIDs.insert((int)pCal->GetUID());

But this is really wierd to me. Any idea why is it behaving like that?

-- modified at 9:01 Monday 13th March, 2006

James R. Twine13-Mar-06 2:59

James R. Twine

13-Mar-06 2:59

Farhat Aisha wrote:
This is another class pointer and i have already check it before entering the function. It is not null.

Not NULL does not necessarily mean valid. You might want to see if the exception is being raised before you call into the STL class, when you dereference the pointer (by accessing a member off of it).

Peace!

-=- James

If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)

Farhat Aisha13-Mar-06 3:01