C / C++ / MFC

C^hris L^osinger6-Jul-01 4:09

C^hris L^osinger

6-Jul-01 4:09

try searching the site...

http://www.codeproject.com/cpp/zip.asp

------------------------------
Smaller Animals Software, Inc.
http://www.smalleranimals.com

6-Jul-01 4:22

Thanks !
But I would like to know if there are a simple MFC function to uncompress a file zip.

Jack Mott6-Jul-01 8:26

Jack Mott

6-Jul-01 8:26

no.

-Jack Mott
jackm@scalablesoftware.com

PJ Arends6-Jul-01 10:54

PJ Arends

6-Jul-01 10:54

I prefer the SawZip ATL Control by Franky Bream. It is easier to use, IMHO, and does not require a license.

---
Multitasking: Screwing up several things at once.

Bjarke Viksoe7-Jul-01 4:55

Bjarke Viksoe

7-Jul-01 4:55

No, but there is a free library called ZLIB that will help you.
There is also free ActiveX controls around, even one on codeproject called SawZip that will do it. And finally I have a few c++ classes on my web site
that could do help you.

www.codeproject.com/atl/sawzip.asp
www.gzip.org/zlib/
www.viksoe.dk/code (last item in c++ section)

Bjarke Viksoe
My code at: www.viksoe.dk/code

Serializing a linked_list class, HELP

9-Jul-01 2:20

Thanks

mr20036-Jul-01 3:26

6-Jul-01 3:26

Hi,
I have a linked_list class, and item class.
class item : public CObject
{
DECLARE_SERIAL(item)
public:
virtual void Serialize(CArchive& ar);

int Angle_D;
CPoint Coord;
int value;
item* next;

}
class linked_list : public CObject
{
DECLARE_SERIAL(linked_list)
public:
virtual void Serialize(CArchive& ar);
void add(int Intensity, CPoint coord, double angle_D);
CPoint m_PCenter;
int HowBig();
void Del ();
linked_list();
virtual ~linked_list();

private:
item* start;
};

i added class item in the header file of my linked_list class.
In my application(MDI) i have a linked_list vairable ( mylist).
so when i want to serialize it, i just:

void CTurboMechDoc::Serialize(CArchive& ar)
{
mylist.Serialize(ar);
}
then in linked_list class:

void linked_list::Serialize(CArchive &ar)
{
item* ptr= start;
CObject ::Serialize(ar);

while(ptr->next != NULL)
{
ptr->Serialize(ar);
ptr=ptr->next;
}
}

and finally in class item:
void item::Serialize(CArchive &ar)
{
CObject::Serialize(ar);

if(ar.IsStoring())
{
ar << Coord;
}
else
ar >> Coord;
}

and i did write IMPLEMENT_SERIAL(classname, CObject,1) for linked_list and item class.
ofcourse the file linked_list.cpp contains the implimentations of both item class and linked)list.
i do have a bitmap displayed as well, but i didn't serialize that.
the problem is that it doesn't work.
can anyone help me?

Ehsan
Eek! | :eek:

Ehsan Behboudi

Tomasz Sowinski6-Jul-01 3:40

6-Jul-01 3:40

1) why are you wasting your time on implementing your own linked list? Use std::list or CTypedPtrList

2) i do have a bitmap displayed as well, but i didn't serialize that. the problem is that it doesn't work

What exactly doesn't work? You can't compile this code? It crashes? It makes your monitor explode?

Tomasz Sowinski -- http://www.shooltz.com

mr20036-Jul-01 4:52

6-Jul-01 4:52

i can't do anything about the linked_list class. i have 7 weeks to finish my project at work(summer job) and the program is written using my own linked_list.

about the bitmaps, the program works fine, the problem is with serializing it.

1- i have to figure out how to serialize my linked_list correctly.
2- I have to serialize bitmap object as well, which i don't know.

can you help me please?

Thanks Confused | :confused:

Ehsan Behboudi

Tomasz Sowinski6-Jul-01 5:17

6-Jul-01 5:17

1) Your linked_list::Serialize should write more information - when reading list contents, you have to know when to stop. You can do one of the following:

(a) write number of items before item contents
(b) write boolean flag before each item. true means that there's more data, false means 'no more list items available'

All this stuff comes for free when you use CTypedPtrList - you have only to implement Serialize for the item class.

2) Before serializing convert your bitmaps to dib sections (search for MFC wrapper at CodeProject), then use CArchive::Read/CArchive::Write.

Tomasz Sowinski -- http://www.shooltz.com

mr20036-Jul-01 7:02

Serializing a linked_list class

6-Jul-01 7:02

in the a) and b) part,
you mean:
void linked_list:: Serialize(CArchive& ar)
{
CObject::Serialize(ar);
item* ptr=start;
if(ar.IsStoring())
{
ar>>m_NumberItems;
while(ptr->next != NULL)
{
ar>>ptr->Serialize;
ar>>TRUE;
ptr=ptr->next;
}
}
else
//same thing, but using ar<<

am I on the right track?

Ehsan Behboudi

mr20036-Jul-01 3:25

6-Jul-01 3:25

Ehsan Behboudi

Menubar in doc/view

EiSl6-Jul-01 1:56

EiSl

6-Jul-01 1:56

Hello guru's,

I've the feeling it's so simple, but I cannot manage it: Confused | :confused:

We all know the standard menu in a MDI application made by MFC-wizard. But what I need now is having also the menu in each doc/view. I've tried some idea's, but they all failed. I succeeded in putting a toolbar and status bar, but the menu...arrghhhh!!! Dead | X|

Do you have any idea's?

Thanks in advance,

EiSl

Re: Menubar in doc/view

Tomasz Sowinski6-Jul-01 2:20

6-Jul-01 2:20

Just create new doc/view classes and add new document template in CYourApp::InitInstance:

BOOL CGeNIeApp::InitInstance()
{
...

// this template generated by the AppWizard
AddDocTemplate(new CMultiDocTemplate(
	IDR_YOURTYPE,
	RUNTIME_CLASS(CYourDoc),
	RUNTIME_CLASS(CYourFrame),
	RUNTIME_CLASS(CYourView)));

// new template
AddDocTemplate(new CMultiDocTemplate(
	IDR_ANOTHERTYPE,
	RUNTIME_CLASS(CAnotherDoc),
	RUNTIME_CLASS(CAnotherFrame),
	RUNTIME_CLASS(CAnotherView)));
}
...
}

Just create the menu with IDR_ANOTHERTYPE and it will be displayed automatically when you switch between views.

Tomasz Sowinski -- http://www.shooltz.com

Web Service

6-Jul-01 1:29

Hi,

I need to develop a web service and I don't know where to start. I have found some information about this subject but I'm still confused.

My web site runs under 4 differents servers. People are redirect to one of these server when the load on one of them is too important. A log file is generated with a COM Component called from an asp page on each server. Which means I have 4 log files.

What I need to do is to get all these log files in one file, located on a 5th server.

I have to do that with a C++ Service.

If someone could show me some sample code to use, or tell me what functions I should use, I will be grateful.

Frédérick Thirault

Tomasz Sowinski6-Jul-01 1:45

6-Jul-01 1:45

Do you really need web service for that? You can connect to your 4 webservers using LAN, right?

Tomasz Sowinski -- http://www.shooltz.com

6-Jul-01 2:33

Thanks for your reply.
I know there are other (and better) way to do that, but I was asked to use a service.

Frederick Thirault

Tomasz Sowinski6-Jul-01 2:40

6-Jul-01 2:40

> I was asked to use a service.

Looks like they want you to program Win32 service - this is totally different from web service. Did they ask for "Web Service" explicitly?

Tomasz Sowinski -- http://www.shooltz.com

6-Jul-01 2:48

Well, they asked for C++ Service.

Frederick Thirault

Tomasz Sowinski6-Jul-01 2:57

6-Jul-01 2:57

Check Platform SDK/Base Services/DLLs,Processes and Threads/Services in MSDN. There are also a samples: "Service" and "RPCSvc". I remember using them as starting point when I had to code a service.

Tomasz Sowinski -- http://www.shooltz.com