C / C++ / MFC

Modeless Dialog CricheditCtrl Issues

27-May-13 20:59

I sometimes wonder if some of the course being taught these days even mention error checking.

Use the best guess

ForNow25-May-13 19:34

25-May-13 19:34

Hi,

I am having a number of problems Getting my richedit to work with my Modless Dialog Box

it started with scrolling as I was unable to get the Current Line and then I while trying to debug it

I noticed the I was I using DDX to connect my crichedit class with the resource defined window

which the documentation says only works for modal however when I comment out the UpdateData

and used the CRichEdtCtrl::Create to connect my windows class to the resource window none the Streamed in data is displayed I'll display the code along with the resource statements

The Create of the modeless Dialog

C++

ret =  progdbg->Create(IDD_PROGDBG,(CWnd *)this);

C++

BOOL CprogDebug::OnInitDialog()
{
  int FirstVisible; 
  long start, end, theline;
  myedit = new CProgedit;       // allocate the richedit
		CRect myrect(17,39,735,273);
		myedit->SetOptions(ECOOP_OR, ECO_AUTOVSCROLL |  ECO_AUTOHSCROLL);
  //  myedit->Create(WS_CHILD| ES_AUTOHSCROLL | ES_AUTOVSCROLL | ES_MULTILINE,myrect,this,IDC_RICHEDIT22);
	 UpdateData(FALSE);  // connect to dilog object
         EDITSTREAM es;
           

   // Set the ENM_REQUESTRESIZE event flag
 //  myedit->SetEventMask( ENM_REQUESTRESIZE ); // set notificate to keep number of charcters in view

   // Force the control to issue a EN_REQUESTRESIZE notification
 //  myedit->RequestResize( );


   CStdioFile *fileptr = new CStdioFile;
   fileptr->Open(proglisting,CFile::typeBinary);
           es.dwCookie = (DWORD) fileptr;
        es.dwError = 0;
        es.pfnCallback = (EDITSTREAMCALLBACK) readlisting;
         myedit->StreamIn(SF_TEXT, es);
		  myedit->SetFocus();
	//	 myedit->GetSel(start,end);
		  theline = myedit->LineFromChar(myedit->LineIndex(-1));
	//	 FirstVisible = myedit->GetLineCount();
		 
//		FirstVisible = myedit->LineIndex(-1);
		 myedit->LineScroll(-theline,0);
		 myedit->HideSelection(TRUE,FALSE);
			        // Call MFC Oninit
          ShowWindow(SW_SHOW);
      //  progeditptr = new CProgedit();
		CDialog::OnInitDialog(); 	
        return TRUE;
}

C++

void CprogDebug::DoDataExchange(CDataExchange* pDX)
 {

//
//        //should precede the DDX and DDV routines
   CDialog::DoDataExchange(pDX);
        // Attach
        DDX_Control(pDX,IDC_RICHEDIT22,(CWnd &)*myedit); // connect rich edit
 //       DDX_Control(pDX,IDC_DESCRIP,descrip);

 //  DDX_Text(pDX, (int) IDC_DESCRIP, mytcpipmess);

 }

Richard MacCutchan26-May-13 0:45

26-May-13 0:45

This is not the correct way to use a dialog; switch it to a modal type.

Use the best guess

ForNow26-May-13 2:29

26-May-13 2:29

meaning I can't use I cant use RichEdit with modeless

Richard MacCutchan26-May-13 2:32

26-May-13 2:32

Why would you want to? It offers no advantages and just makes your code far more complex than it needs to be. Use dialogs the way they are meant to be used and your life will be so much easier.

Use the best guess

ForNow26-May-13 2:45

26-May-13 2:45

I want to have richedit with a window that I can move around mot modal with just a ok or cancel button

If modeless and richedit is out of the picture then maybe I should I should just use a regular child

window

Richard MacCutchan26-May-13 3:02

26-May-13 3:02

ForNow wrote:
I want to have richedit with a window that I can move around

And why do you think a modal dialog cannot do that?

Use the best guess

ForNow26-May-13 3:09

26-May-13 3:09

Model as in Do.Modal are very inflexible
Used to gather data yes/no. I want to
Display a Mainframe assembler program listing
In a richedit manipulate the current selection
Have other controls/windows display
Register information can do all that with a
Modal

Richard MacCutchan26-May-13 3:31

26-May-13 3:31

ForNow wrote:
Model as in Do.Modal are very inflexible

Quite the opposite; you can do (more or less) anything you like in a modal dialog. However, given the description of what you want to do, it may not be the best choice. The issues is to decide what features you wish to use and then work out which type of window you need. Perhaps a normal frame window would do what you want, but running in a separate thread. Or, go back to a modeless dialog, but accepting that you cannot use those features that are restricted to modals.

Use the best guess

ForNow26-May-13 3:48

26-May-13 3:48

So then I can use richedit with modeless when i do CRichedt::create the stream in callback gets control
But the data is not displayed in the CRichedit

Richard MacCutchan26-May-13 3:53

26-May-13 3:53

ForNow wrote:
But the data is not displayed in the CRichedit

Then you need to investigate why, and add whatever code is necessary. Check out the documentation for the CRichedit class.

Use the best guess

ForNow26-May-13 5:48

26-May-13 5:48

thanks again for your help forgot the WS_VISIBLE flag on the CRichEditCtrl::Create

another issue the TCP/IP registry setting per the MS Knoweledbase article got my sockets to connect the MainFrame

Thanks Again

David Crow29-May-13 4:52

David Crow

29-May-13 4:52

ForNow wrote:
myedit = new CProgedit; // allocate the richedit
CRect myrect(17,39,735,273);
myedit->SetOptions(ECOOP_OR, ECO_AUTOVSCROLL | ECO_AUTOHSCROLL);

Why make the rich edit control on the heap? Put it on the stack like any other control variable. Way simpler.

ForNow wrote:
CDialog::OnInitDialog();

Any particular reason why this statement is (second to) last instead of first?

"One man's wage rise is another man's price increase." - Harold Wilson

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modified 29-May-13 15:21pm.

ForNow29-May-13 8:30

29-May-13 8:30

Why make the dialog on the heap. I'm doing inter process communication with a console program
And I am afraid that if create the dialog on the
Stack some of the information will get lost
As I want the dialog active durning the time I am
Communicating with the console program

When I put CDialog::Initinstnce as the first statement
In my overridable control never came back from it

David Crow29-May-13 9:20

David Crow

29-May-13 9:20

ForNow wrote:

When I put CDialog::Initinstnce as the first statement

You mean OnInitDialog()?

ForNow wrote:

In my overridable control never came back from it

Did you remember to call AfxInitRichEdit() in the app's InitInstance() method()?

ForNow29-May-13 9:41

Multi-Monitor zoom behavior different

29-May-13 9:41

In my CWinApp yes I am at work but ill
Check

Right now my main problem is the TCP/IP code that used to
Work ( connecting with the mainframe stopped working)
I am getting nErrorcode timeout in CAsyncSocket::OnConnect
Overridable

Maybe my laptop has slowed up and I may have re-install windows
To get back the performance

Thanks

transoft25-May-13 5:05

transoft

25-May-13 5:05

Hi,

I implemented a wheel-zoom function. It behaves exactly as I expect on primary monitor. But when I move application to secondary monitor, the wheel zoom behavior is different.

How can correct it?

Thanks,

transoft

Re: Multi-Monitor zoom behavior different

Richard MacCutchan25-May-13 7:06

25-May-13 7:06

transoft wrote:
How can correct it?

How indeed? The first thing you need to do is give some proper details of your code, what is happening and why it is not correct.

Use the best guess

design a matchbox?

freemo71624-May-13 6:19

freemo716

24-May-13 6:19

i want to design a matchbox like this
program will take 9 numbers and convert them to hexadecimal number,and draw matchbox and then find a way ,from matrix begin (0,0) to matrix last element (3,3).
http://r1305.hizliresim.com/19/s/ndzby.png[^]

Re: design a matchbox?

Richard MacCutchan24-May-13 6:48