C / C++ / MFC

1-Mar-07 20:11

Hello all,
I want to pass class object in my thread.How to do it??
when i m not passing any arguments to my thread then i m calling AfxBeginThread Like this,
pThread = (CMyThread*) AfxBeginThread( RUNTIME_CLASS(CMyThread),
THREAD_PRIORITY_NORMAL,
NULL,
CREATE_SUSPENDED,
NULL);
i have made a class constituting of 2 members CString and int
i want to pass these values in my thread class
i have made a object of this class like this
commo *c;
c = new commo;
then passing its variable values

now i want to pass this object to thread class
when i m passing it to thread class like this
pThread = (CMyThread*) AfxBeginThread( RUNTIME_CLASS(CMyThread),c);
Its giving error
error C2665: 'AfxBeginThread' : none of the 2 overloads can convert parameter 1 from type 'struct CRuntimeClass *'

can anybody help me in this
thanxs in advance

Naveen1-Mar-07 20:20

1-Mar-07 20:20

cast c to LPVOID and then pass

pThread = (CMyThread*) AfxBeginThread( RUNTIME_CLASS(CMyThread),(LPVOID)c);

nave

neha.agarwal271-Mar-07 20:25

1-Mar-07 20:25

its ging error
error C2665: 'AfxBeginThread' : none of the 2 overloads can convert parameter 1 from type 'struct CRuntimeClass *'

Naveen1-Mar-07 20:32

1-Mar-07 20:32

the commo class is derived from the CWinThread class isnt it?

Put the following macro in the header file inside the public setion of the class

DECLARE_DYNCREATE( commo )

And in the cpp file

IMPLEMENT_DYNCREATE( commo , CWinThread )

nave

neha.agarwal271-Mar-07 20:41

1-Mar-07 20:41

Giving same error

Naveen1-Mar-07 20:43

1-Mar-07 20:43

can you show me the commo class?

nave

neha.agarwal271-Mar-07 20:49

1-Mar-07 20:49

/*commo.h*/
#if !defined(AFX_COMMO_H__F29BF3A6_71CF_42F8_908F_372B46ECD074__INCLUDED_)
#define AFX_COMMO_H__F29BF3A6_71CF_42F8_908F_372B46ECD074__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// commo.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// Ccommo thread

class Ccommo : public CWinThread
{
public:
DECLARE_DYNCREATE(Ccommo)
public:
Ccommo(); // protected constructor used by dynamic creation

// Attributes
public:
int nitem;
CString txt;

// Operations
public:

// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(Ccommo)
public:
virtual BOOL InitInstance();
virtual int ExitInstance();
//}}AFX_VIRTUAL

// Implementation
public:
virtual ~Ccommo();

// Generated message map functions
//{{AFX_MSG(Ccommo)
// NOTE - the ClassWizard will add and remove member functions here.
//}}AFX_MSG

DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_COMMO_H__F29BF3A6_71CF_42F8_908F_372B46ECD074__INCLUDED_)

/**********commo.cpp file*************************/
// commo.cpp : implementation file
//

#include "stdafx.h"
#include "totalthread.h"
#include "commo.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// Ccommo

IMPLEMENT_DYNCREATE(Ccommo, CWinThread)

Ccommo::Ccommo()
{
}

Ccommo::~Ccommo()
{
}

BOOL Ccommo::InitInstance()
{
// TODO: perform and per-thread initialization here
return TRUE;
}

int Ccommo::ExitInstance()
{
// TODO: perform any per-thread cleanup here
return CWinThread::ExitInstance();
}

BEGIN_MESSAGE_MAP(Ccommo, CWinThread)
//{{AFX_MSG_MAP(Ccommo)
// NOTE - the ClassWizard will add and remove mapping macros here.
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Ccommo message handlers

Naveen1-Mar-07 20:53

1-Mar-07 20:53

sorry sorry my mistake... D'Oh! | :doh:

actually CMyThread need to be derived from CWinThread and those macros need to be put in that class.

nave

neha.agarwal271-Mar-07 21:08

1-Mar-07 21:08

CMyThread Class is derived from another class WinTimerthread and this class is derived from CWinThreadClass
Now what i have done is i have declared both variable in WinTimerThread Class instead of commo class
and in my main class passed values it those two variables of WinTimerThread class
but againits giving same error Cry | :((

Naveen1-Mar-07 21:17

1-Mar-07 21:17

did put those macros in both CMyThread and WinTimerthread class?

nave

neha.agarwal271-Mar-07 21:22

1-Mar-07 21:22

in CWinTimerThread.cpp
IMPLEMENT_DYNCREATE(CWinTimerThread, CWinThread)
in CWinTimerThread.h
DECLARE_DYNCREATE(CWinTimerThread)
in CMyThread.cpp
IMPLEMENT_DYNCREATE(CMyThread, CWinTimerThread)
in CMyThread.h
DECLARE_DYNCREATE(CMyThread)
i have applied all these macros...

Naveen1-Mar-07 22:19

1-Mar-07 22:19

chk mail

nave

Problem while using Windows Registry

BadKarma1-Mar-07 22:43

BadKarma

1-Mar-07 22:43

Hi,

For passing info into a user thread you should make a set function

The you create the thread suspended like in your example.
Next you can initialize the thread giving it all the required info, data & objects.
Then you start the thread

CMyThread* pThread = (CMyThread*) AfxBeginThread( RUNTIME_CLASS(CMyThread),
THREAD_PRIORITY_NORMAL, NULL, CREATE_SUSPENDED, NULL);

Commo* pC = new Commo();
pThread->SetCommo(pC);

pThread->ResumeThread();

This seems to me to be the simplest way to achieve this. (I always use this way Poke tongue | ;-P

)

codito ergo sum

CWebBrowser2 Control

Sonani Prakash1-Mar-07 20:02

Sonani Prakash

1-Mar-07 20:02

Hi
I am using IWebbrowser2 interface for webbrowser interface on SDI Applicaton
I have problem about Scroll bar.
I don't know why this control is not taking auto matic scroll bar.
because of this page's below part is cutting down.

Can any body suggest me what could be problem here to have auto matic scroll bar on Webbrowser2 Activex control.?

Or any sample example can suggest ,It would be great?

sonani prakash

Re: CWebBrowser2 Control

Sameer_Thakur1-Mar-07 21:12

Sameer_Thakur

1-Mar-07 21:12

Hi.

Are you using Microsoft web browser control? I have used the same in my application and it is showing scroll bars on loading web page in it.

You can get “Microsoft web browser control” from Project>>AddToProject>>Components and Controls>> Registered ActiveX Controls>> Microsoft web browser control.

Sameer Thakur

Re: CWebBrowser2 Control

Sonani Prakash1-Mar-07 21:59

Sonani Prakash

1-Mar-07 21:59

Actually In my applicaton we are not using as you have mentioned but It's linked with CHtmlView calss and It's attached using IWebrowser2 interface code.It's not drag an droped control.

Do you have idea which property or things can affect this CHTMLView class?

Thanks,
Prakash

sonani prakash

harsh_29611-Mar-07 18:53

harsh_2961

1-Mar-07 18:53

hi,

i found a code online regarding how to use windows registry and when i run it visual studio 2005 its running fine..

Now i tried to implement the samething implemented in the code in my application and i found and i am getting this folllowimg error.

"fatal error C1190: managed targeted code requires a '/clr' option"

In my .Cpp file i am using #using <system.dll>
and in stdafx.h i am using

#using <mscorlib.dll>
#using <system.windows.forms.dll>
using namespace System;
using namespace System::Windows::Forms;
using namespace Microsoft::Win32;
#undef MessageBox

please let me know the way to get over this error..

harsha

Mark Salsbery1-Mar-07 18:58

Mark Salsbery

1-Mar-07 18:58

The code is using the CLR so you'll need to enable Common Language Runtime support in your project
properties (Configuration Properties/General).

Mark

"Great job, team. Head back to base for debriefing and cocktails."
(Spottswoode "Team America")

harsh_29611-Mar-07 19:43

harsh_2961

1-Mar-07 19:43

Thanks a lot its working now Smile | :)

harsha

prasad_som1-Mar-07 18:58

prasad_som

1-Mar-07 18:58

To use managed c++, you need to choose option Project-->Properties-->configuration properties-->c/c++-->General-->commaon language runtime support(/clr).

Prasad
Notifier using ATL | Operator new[],delete[][^]

ThatsAlok1-Mar-07 20:31

ThatsAlok

1-Mar-07 20:31

harsh_2961 wrote:
using namespace Microsoft::Win32;

better ask you CLR based question in ManagedForum[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
Global Interface Table: An Easy Way to Marshal an Interface Pointer[new]
VC Forum Q&A :- I/ IV
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harsh_29611-Mar-07 19:43

harsh_2961

1-Mar-07 19:43

Thanks a lot its working now Smile | :)

harsha

Hamid_RT1-Mar-07 20:36

Hamid_RT

1-Mar-07 20:36

You said better ask on the ManagedForum but he said thanks its working now Big Grin | :-D

WhiteSky