Re: what is EV_BREAK event detection pre-condition in serial comm program?? - C / C++ / MFC Discussion Boards

Re: HELP...

Bob Stanneveld7-Jun-05 2:22

Bob Stanneveld

7-Jun-05 2:22

I didn't do it, but my fingers itch when I think about it Blush | :O

...

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: HELP...

toxcct7-Jun-05 5:06

toxcct

7-Jun-05 5:06

Bob Stanneveld wrote:
It's bad for your health if you worry too much about it

thank you so muck Ô sir Yoda...

i'll think about it, really Big Grin | :-D

TOXCCT >>> GEII power
[toxcct][VisualCalc]

How to access the variables of View Class

nripun7-Jun-05 0:00

nripun

7-Jun-05 0:00

I created an SDI application. When i click on one of the menu items a dialog box pops-up. I want the values of a few variables that are declared as public in the View class to be accessed and modified in the dialog box. I tried creating an object of the view class in the dialog class, but doesnt work.How do i do it? Please Help.

Re: How to access the variables of View Class

Rahim Rattani7-Jun-05 0:14

Rahim Rattani

7-Jun-05 0:14

Use

CMyView* myView = (CMyView*)AfxGetMainWnd()->GetActiveView();

to get a pointer to the view.

Rahim Rattani
Software Engineer,
Matrix Systems (Pvt) Ltd.,
Karachi - Pakistan

Re: How to access the variables of View Class

Cedric Moonen7-Jun-05 0:17

Cedric Moonen

7-Jun-05 0:17

nripun wrote:
I tried creating an object of the view class in the dialog class

WTF | :WTF:

Errr, I think this is not a good solution Poke tongue | ;-P

What you need to do is, when creating your dialog, send the variables to the dialog (using a public member function) before calling DoModal. Exemple:

CYourDialog::CDialog
{
   // MFC stuff here....

public:
    void SetVariable(int Value)  { m_ViewVar = Value; }

private:
   int m_ViewVar;
}

Then when creating your dialog you can do that:

CYourDialog Dlg;
Dlg.SetVariable(Variable);
Dlg.DoModal();

So nowm inside your dialog class know the value of the variable from your View. If you need to retrieve it, the same, add a member function to retrieve the value.

Why using functions and not public variable ? In fact this is a good habit to have: your member variables should be private (or protected in case of inheritance) and they can be accessed through Get/Set methods...

Hope this helps

Re: How to access the variables of View Class

nripun7-Jun-05 1:37

nripun

7-Jun-05 1:37

Thank You,
Its working.

what is EV_BREAK event detection pre-condition in serial comm program??

SAMZC6-Jun-05 21:55

SAMZC

6-Jun-05 21:55

When EV_BREAK event indication is received on COM port?Whether serial device connected with serial port gives an EV_BREAK event report when it lost its connection with PC serial port??

Now I want to monitor my serial device connected with serial port and give a immediate report when it lost its connection.So I want to set EV_BREAK mask on COM port and decide to break my program when conn lost.

Is it OK?

Thanks.

Re: what is EV_BREAK event detection pre-condition in serial comm program??

Bob Stanneveld7-Jun-05 0:24

Bob Stanneveld

7-Jun-05 0:24

Hello,

The EV_BREAK event is not reaised when the connection is lost. You should try the EV_ERR event. Look here[^] for more info on serial events.

Breaks are some special action that some devices send across the network. It is sometimes used to determine which device is allowed to send data.

Hope this helps.

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Items in a Combo Box..

mpallavi6-Jun-05 21:14

mpallavi

6-Jun-05 21:14

Hello..
I am using a ComboBox to accept phone number from the user.. I want this phone numbers to be saved so that they can be used next time when the application is run.. How should i go about this?
regards
pallavi