C / C++ / MFC

Re: How to create and array of structs that have their own arrays?

10-Sep-08 20:37

Hello

, is there anyway that I can hold an array of structs that have their own arrays other than creating a new class

somewhere in the typedef.h ...
typedef struct mystruct
{
  CStringArray aName1;
  CStringArray aName2;
  CArray <int> aVal1;
  CArray <int> aVal2;
}MY_STRUCT;


somewhere in the header of my MyDoc.h...
#include "typedef.h"

CArray<my_struct> m_MyStructs;
somewhere in the header of my MyDoc.cpp...

MY_STRUCT a;
...
m_MyStruct.Add(a);
</my_struct></int></int>

This code returns error that "=" operator is private and can't be accessed!
Thanks Smile | :)

PS-Oh I got that I can'tuse >< around my type specifier because it will be assumed as a tag so I use [] instead Smile | :)

somewhere in the typedef.h ...
typedef struct mystruct
{
CStringArray aName1;
CStringArray aName2;
CArray [int] aVal1;
CArray [int] aVal2;
}MY_STRUCT;

CPallini10-Sep-08 21:08

CPallini

10-Sep-08 21:08

Could you report the exact (complete) error message?

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: How to create and array of structs that have their own arrays?

Electronic7510-Sep-08 21:18

Re: How to create and array of structs that have their own arrays?

10-Sep-08 21:18

, Sure,

Error 36 error C2248: 'CObject::operator =' : cannot access private member declared in class 'CObject' c:\program files\microsoft visual studio 8\vc\atlmfc\include\afxcoll.h 593
Error 37 error C2248: 'CObject::operator =' : cannot access private member declared in class 'CObject' c:\program files\microsoft visual studio 8\vc\atlmfc\include\afxtempl.h 272
these errors do not appear when I remove

m_Mystruct.Add(a)
As I noted in the stuct definition I have both CArray<int> and CStringArray
thanks Smile | :)

CPallini10-Sep-08 21:28

CPallini

10-Sep-08 21:28

Could you also reformat your code properly? For instance CArray is a template container, but I don't see any argument between < >.
Smile | :)

Re: How to create and array of structs that have their own arrays?

Electronic7510-Sep-08 21:46

Re: How to create and array of structs that have their own arrays?

10-Sep-08 21:46

done

CPallini10-Sep-08 21:50

CPallini

10-Sep-08 21:50

Probably Cédric's guess [^] is right.
Smile | :)

Re: How to create and array of structs that have their own arrays?

Cedric Moonen10-Sep-08 21:30

Re: How to create and array of structs that have their own arrays?

10-Sep-08 21:30

I guess it is because CArray and CStringArray don't have a copy constructor. So, the compiler will assign a default copy constructor and assignment operator to your structure which 'uses' the copy ctor and assignment operator of the CArray and CStringArray, which are private. One way to fix this is to provide your own copy constructor and assignment operators for the structure. In those, copy the contents of the arrays using a loop (instead of a direct assignment).

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Electronic7510-Sep-08 21:49

Re: How to create and array of structs that have their own arrays?

10-Sep-08 21:49

Hi!

I guess you are right! you mean I have to derive my own CArray class? isn't another way I mean another array class that can do the trick!
thanks

Cedric Moonen10-Sep-08 21:55

Re: How to create and array of structs that have their own arrays?

10-Sep-08 21:55

Electronic75 wrote:
you mean I have to derive my own CArray class

No, I mean you have to provide a =operator and a copy constructor for your structure. Inside those, instead of simply assigning the arrays, like this:

mystruct::myStruct(const mystruct& copy)
{
  array1 = copy.array1;
}

you will need to copy the content of the array by iterating over it.

Electronic75 wrote:
isn't another way I mean another array class that can do the trick!

std::string or std::list maybe ? But you have to be carefull of what is inside those arrays. If you store pointers, you will have a copy of the original pointer pointing at the same memory location, so you should only delete one of them (so, it's a bit dangerous).

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Electronic7511-Sep-08 0:04

How to send data between PC usb port to a WinCE usb port?

11-Sep-08 0:04

Thanks a lot Cedric, It worked pretty much OK Cool | :cool:

Priya_Sundar10-Sep-08 20:26

Priya_Sundar

10-Sep-08 20:26

Hi All,

I need to write a program in VC++/MFC that can send data between PC usb port to a WinCE usb port?

Where to start??

Any help???

However i have gone through the following links:
http://social.msdn.microsoft.com/forums/en-US/vcgeneral/thread/972aa2e9-d235-4518-923b-9c630a44b1d1/[^]

http://www.helpshare.com/qhome.asp?qid=1986[^]

Priya Sundar

Re: How to send data between PC usb port to a WinCE usb port?

Cedric Moonen10-Sep-08 20:38

Re: How to send data between PC usb port to a WinCE usb port?

10-Sep-08 20:38

What do you need to do ? In fact you are looking at it the wrong way: don't take into account that you have a USB port in between, this will be 'hidden' for you. In fact you need to communicate with the driver of the PocketPC (generally through ActiveSync). What are you trying to achieve exaclty ? Take a look at RAPI[^], this is what is already available.

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Priya_Sundar11-Sep-08 0:27

Priya_Sundar

11-Sep-08 0:27

I want to transfer some data to the WinCE using USB.

I have a USB cable's one end connected to my PC running a VC++6.0 Application and to the WinCE.

Priya Sundar

Re: How to send data between PC usb port to a WinCE usb port?

Cedric Moonen11-Sep-08 0:48

how to create .MSG files and .EML files using vc++

11-Sep-08 0:48

Did you read my previous message ? Unsure | :~

Because it looks like you didn't...

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

ravimalikmca10-Sep-08 20:02

ravimalikmca

10-Sep-08 20:02

i need to create a .MSG file on my local disk the saveas function of _Mailitem of outlook programming fails.

Also i need to create .EML files that can take rtf data as an input or message body.

these both i have to create in vc++ 6.0 not in .net application.

Thanks,
Regards,
Ravi

#import type library

George_George10-Sep-08 19:42

10-Sep-08 19:42

Hello everyone,

I am developing a C++ COM client (COM consumer) using #import statement, even if it works fine, I still find one issue when reading MSDN document about #import.

http://msdn.microsoft.com/en-us/library/8etzzkb6(VS.80).aspx

In the document, it mentioned two header files will be generated -- TLI and TLH files. But in my client project directory, there is only one tlh file. I am using VS 2008. My questions is why the tli file is missing, if not missing, where is it?

thanks in advance,
George

SandipG 10-Sep-08 20:47

SandipG

10-Sep-08 20:47

probably you are importing tlb with no_implementation attribute.

Regards,
Sandip.

George_George10-Sep-08 20:52

10-Sep-08 20:52

Thanks Sandip,

Here is my IDL file. I do not explicitly assign the no_implementation attribute. Any ideas?

#pragma once
#pragma pack(push, 8)

#include <comdef.h>

namespace TestATL1Lib {

//
// Forward references and typedefs
//

struct __declspec(uuid("1f97c59f-609d-4f86-ba31-db9fd88bbbd4"))
/* LIBID */ __TestATL1Lib;
struct /* coclass */ bbbb;
struct __declspec(uuid("2bd6b985-3287-492f-a781-decdd03ca0d0"))
/* dual interface */ Ibbbb;
struct /* coclass */ cccc;
struct __declspec(uuid("1a3a642c-50c0-4c30-9807-3bf4727a1157"))
/* dual interface */ Icccc;

//
// Smart pointer typedef declarations
//

_COM_SMARTPTR_TYPEDEF(Ibbbb, __uuidof(Ibbbb));
_COM_SMARTPTR_TYPEDEF(Icccc, __uuidof(Icccc));

//
// Type library items
//

struct __declspec(uuid("9b0304a2-a49a-4a3b-8d40-a05c4d7c009b"))
bbbb;
    // [ default ] interface Ibbbb

struct __declspec(uuid("2bd6b985-3287-492f-a781-decdd03ca0d0"))
Ibbbb : IDispatch
{};

struct __declspec(uuid("f68bfdc9-ebe3-424e-80ef-ed6465087c60"))
cccc;
    // [ default ] interface Icccc

struct __declspec(uuid("1a3a642c-50c0-4c30-9807-3bf4727a1157"))
Icccc : IDispatch
{};

} // namespace TestATL1Lib

#pragma pack(pop)

regards,
George

SandipG 10-Sep-08 21:47

SandipG

10-Sep-08 21:47

i do not have much experience with COM, but how does your TLH file look like
because TLI file contains implementation for compiler generated wrapper functions specified in .tlh file.

Regards,
Sandip.

George_George10-Sep-08 21:54

Re: #import type library [modified]

10-Sep-08 21:54

Thanks Sandip,

Here is what the tlh file looks like. Now with my posted TLH and TLI files, do you have any ideas why there is no tli file generated?

#pragma once
#pragma pack(push, 8)

#include <comdef.h>

namespace TestATL1Lib {

//
// Forward references and typedefs
//

struct __declspec(uuid("1f97c59f-609d-4f86-ba31-db9fd88bbbd4"))
/* LIBID */ __TestATL1Lib;
struct /* coclass */ bbbb;
struct __declspec(uuid("2bd6b985-3287-492f-a781-decdd03ca0d0"))
/* dual interface */ Ibbbb;
struct /* coclass */ cccc;
struct __declspec(uuid("1a3a642c-50c0-4c30-9807-3bf4727a1157"))
/* dual interface */ Icccc;

//
// Smart pointer typedef declarations
//

_COM_SMARTPTR_TYPEDEF(Ibbbb, __uuidof(Ibbbb));
_COM_SMARTPTR_TYPEDEF(Icccc, __uuidof(Icccc));

//
// Type library items
//

struct __declspec(uuid("9b0304a2-a49a-4a3b-8d40-a05c4d7c009b"))
bbbb;
    // [ default ] interface Ibbbb

struct __declspec(uuid("2bd6b985-3287-492f-a781-decdd03ca0d0"))
Ibbbb : IDispatch
{};

struct __declspec(uuid("f68bfdc9-ebe3-424e-80ef-ed6465087c60"))
cccc;
    // [ default ] interface Icccc

struct __declspec(uuid("1a3a642c-50c0-4c30-9807-3bf4727a1157"))
Icccc : IDispatch
{};

} // namespace TestATL1Lib

#pragma pack(pop)

regards,
George

SandipG 10-Sep-08 22:04

SandipG

10-Sep-08 22:04

I cant see any function in TLH so i think compiler is not generating corresponding TLI.

I tried creating test.tlb without any contents and it gave me only .TLH

// Created by Microsoft (R) C/C++ Compiler Version 12.00.8168.0 (1060d860).
//
// e:\users\sandip\trialmfc\debug\test.tlh
//
// C++ source equivalent of Win32 type library test.tlb
// compiler-generated file created 09/11/08 at 13:29:04 - DO NOT EDIT!

#pragma once
#pragma pack(push, 8)

#include <comdef.h>

namespace TESTLib {

} // namespace TESTLib

#pragma pack(pop)
</comdef.h>

Does it make sense.

Regards,
Sandip.

modified on Thursday, September 11, 2008 4:42 AM

George_George10-Sep-08 23:33