C / C++ / MFC

2-Nov-06 8:57

hello,
what i am doing wrong? i can't destroy created window

LRESULT HookWnd::OnMsg(WPARAM wParam, LPARAM lParam)
{   
	i++;
	theApp.FileWrite("Window Destroyed");
	if(i>10) DestroyWindow();
	return 0;
}
HookWnd::HookWnd()
{
	CWnd::CreateEx(0, AfxRegisterWndClass(0), "invisible", 0, -1, -1, 0, 0, 0, 0);
}

how else can i destroy my window ? Confused | :confused:

-- modified at 15:08 Thursday 2nd November, 2006

David Crow2-Nov-06 9:23

2-Nov-06 9:23

What line of what file is asserting?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

edvintas2-Nov-06 9:40

2-Nov-06 9:40

hmm

i don't know.. but here is an error window: http://img73.imageshack.us/img73/7837/errorqt2.jpg[^]
i just solved my problem otherwise... Smile | :)

i found that i don't need to destroy the window D'Oh! | :doh:

David Crow2-Nov-06 10:08

2-Nov-06 10:08

edvintas wrote:
i don't know.. but here is an error window: http://img73.imageshack.us/img73/7837/errorqt2.jpg[^]

Did you miss "line 979 of wincore.cpp?"

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

edvintas2-Nov-06 10:56

2-Nov-06 10:56

i think no D'Oh! | :doh:

hmm i don't want to create one more topic so i will ask here, how to terminate MFC application in a proper way? Confused | :confused:

i always get error message when i call ExitInstance "Application was terminated in unusual way.. blah blah blah" Sigh | :sigh:

int CpKloggerApp::ExitInstance() 
{
	Delete();
	FileWrite("pKlogger terminated");
	return CWinApp::ExitInstance();
}

hmm its a bit annoying D'Oh! | :doh:

why i can't just delete delete delete... Mad | :mad:

anyway.. thank you for help in advance Smile | :)

David Crow2-Nov-06 11:08

2-Nov-06 11:08

Does it still happen if you remove the calls to Delete() and FileWrite()? Have you stepped into CWinApp::ExitInstance() to note where that debug message is being printed from?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

edvintas2-Nov-06 11:15

2-Nov-06 11:15

if i remove delete() call there is no error but without delete CWinApp object isn't destroyed and application doesn't turns off and i can see it in task manager process list D'Oh! | :doh:

Hamid_RT2-Nov-06 18:20

Hamid_RT

2-Nov-06 18:20

Did you use of debugger?

WhiteSky

David Crow3-Nov-06 2:27

3-Nov-06 2:27

edvintas wrote:
...without delete CWinApp object isn't destroyed...

The CWinApp-derived object does not get destroyed until it goes out of scope, which is one of the very last things to happen since it is a global variable. You need to debug into the Delete() call to see why it is misbehaving.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

edvintas3-Nov-06 4:02

3-Nov-06 4:02

when i debug my application it stops here:

***dbgheap.c***<br />
<pre>...
        /*
         * If this ASSERT fails, a bad pointer has been passed in. It may be
         * totally bogus, or it may have been allocated from another heap.
         * The pointer MUST come from the 'local' heap.
         */
HERE>>> _ASSERTE(_CrtIsValidHeapPointer(pUserData));
...</pre><br />
<br />
but it says nothing for me :-O<br />
any ideas? :^)

David Crow3-Nov-06 5:01

3-Nov-06 5:01

edvintas wrote:
but it says nothing for me

Me either, since you've not shown any supporting code.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

edvintas3-Nov-06 5:19

3-Nov-06 5:19

ok, short summary of my application: CWinApp creates thread and invisible window.
After 5sec. thread terminates and it should terminate the application but it don't. D'Oh! | :doh:

BOOL CpKloggerApp::InitInstance()<br />
{<br />
	hookThr = new pKhookT();<br />
	hWnd = new HookWnd();<br />
	m_pMainWnd = hWnd;<br />
	return true;<br />
}<br />
pKhookT::~pKhookT()<br />
{<br />
	theApp.m_pMainWnd->DestroyWindow();<br />
	theApp.Delete();<br />
}

thats all

i think i would better use win32api Smile | :)

in MFC to many mysterious sh*t happens Sniff | :^)

however i almost like it D'Oh! | :doh:

David Crow3-Nov-06 5:24

Beginner's Question . Data Structures

3-Nov-06 5:24

A secondary thread should not be allowed to terminate the application. It should simply post a message back to the primary thread indicating that the application should shut down.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Immunity182-Nov-06 8:48

2-Nov-06 8:48

. Anyone could suggest me a link where
it will have information/guide on how i will make this ? Big Grin | :-D

guide on how i will do this

Maximilien2-Nov-06 8:58

Maximilien

2-Nov-06 8:58

a simple list ( or vector ) can be used to hold your structures; for small number of entries it will not be an issue.

// simplified solution
class Entry
{
int ID;
std::string name;
std::string last_name;
std::string birth_data; /// as a string.
}

std::vector<entry> EntryVector;

when user enters an ID, just loop the vector to find the matching ID, samething for other fields.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Immunity182-Nov-06 9:07

2-Nov-06 9:07

hm yes :S i didnt said the important think Big Grin | :-D

I want , User be able to create the list (insert data)

But how i will save the values of the 4 member variables ? Big Grin | :-D

(so i will be able afterwards search them )

PS : just loop the vector to find the matching ID how i do that ? Big Grin | :-D

Cedric Moonen2-Nov-06 9:10

Cedric Moonen

2-Nov-06 9:10

IMO, it looks like a database application for me. I think this should be the way to go. But now, you have to first know which 'technology' you want to use (which kind of database). And for that part, I'm not very experienced...

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Immunity182-Nov-06 9:17

2-Nov-06 9:17

well i thought that too but data base = mysql ? Big Grin | :-D

but i dont thing so that the video clubs that got a application
with all the renters , uses mysql

(on C++ i tried to crate Data base project and it ask my for dns login name pass etc :S)

I thought to work with edit text fuctions

(so in each line the first 10 letters/spaces will be for the ID
next 20 for Name next 20 for Lname next 10 for BirthDate)

(so with a buffer gonna read first 10 letters in each line
and when the ID is the same value with the value the User
have given it will collect the other 3 information

Just my University teacher told me it would be easy doing
it with Data structures Big Grin | :-D

Cedric Moonen2-Nov-06 9:27

Cedric Moonen

2-Nov-06 9:27

It is very difficult to understand you, can you please make a little effort on your spelling ?

Immunity18 wrote:
data base = mysql ?

As far as I know, SQL is only a language to access your database in an uniform way. For mySQL, I don't know what it is exactly but it is certainly not the only database type that exists.

Immunity18 wrote:
but i dont thing so that the video clubs that got a application
with all the renters , uses mysql

I don't understand what you are trying to say. Anyway, I'm almost sure that video clubs systems use a database to store their customer data. For me, that seems the most adequate thing to do.

Immunity18 wrote:
(on C++ i tried to crate Data base project and it ask my for dns login name pass etc :S)

I'm not experienced with databases but there are several ways to do it (I thin you tried through the wizard, whihc I don't really like). If you make a search on this website, you'll find a lot of usefull classes to help you.

Immunity18 wrote:
I thought to work with edit text fuctions

(so in each line the first 10 letters/spaces will be for the ID
next 20 for Name next 20 for Lname next 10 for BirthDate)

(so with a buffer gonna read first 10 letters in each line
and when the ID is the same value with the value the User
have given it will collect the other 3 information

Yes, I know what you want to do but it will be much more efficient to do it using database (I you don't need to to write all the stuff to read the files, parsing and searching... everything is handled by the database classes). Of course, you need to spend a little bit of time to understand how it works.

Immunity18 wrote:
Just my University teacher told me it would be easy doing
it with Data structures

You can use a database and still use data structures to manage your data.

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Immunity182-Nov-06 9:33

2-Nov-06 9:33

Cedric Moonen wrote:
I'm not experienced with databases but there are several ways to do it (I thin you tried through the wizard, whihc I don't really like). If you make a search on this website, you'll find a lot of usefull classes to help you.

thx i will try that ( i had search info about Data structures and didnt finding something useful ) i will search about Data Bases

Cedric Moonen wrote:
Yes, I know what you want to do but it will be much more efficient to do it using database (I you don't need to to write all the stuff to read the files, parsing and searching... everything is handled by the database classes). Of course, you need to spend a little bit of time to understand how it works.

I think you have understand me Big Grin | :-D

and yes i dont like to make the application as i said (I know how to edit text etc , but i dont
know how to use databases / data structures , so i want to try
make this project with databases and get some skill on this type
of projects.

Maximilien2-Nov-06 9:29

Maximilien

2-Nov-06 9:29

yes, mySQL can be used to do this, but I'm no expert.

but i dont thing so that the video clubs that got a application
with all the renters , uses mysql

Immunity18 wrote:
I thought to work with edit text fuctions

(so in each line the first 10 letters/spaces will be for the ID
next 20 for Name next 20 for Lname next 10 for BirthDate)

(so with a buffer gonna read first 10 letters in each line
and when the ID is the same value with the value the User
have given it will collect the other 3 information

NO!

use a struct or a class it will be so much simpler in the long run.

since it's for a school project, I will suggest you keep away from mySQL, and simply use list or vector to keep the data; I'm not sure you will be able to manage sql stuff.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Immunity182-Nov-06 9:46