C / C++ / MFC

9-Nov-04 23:15

Hello,

I have an editbox designed with MFC. I want it to scroll down to the last entry automatically. So, I am typing some lines, and it allways jumps to the first line, so I have to scroll down to see the new entry.

How can that be achieved?

DKT

David Crow10-Nov-04 3:23

10-Nov-04 3:23

I'm a bit confused. You have an edit control that you are typing text into. Correct? What are these entries that you refer to? Do you also have code that is adding text to the edit control?

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

Anonymous10-Nov-04 4:48

10-Nov-04 4:48

Chat program!

One editbox for typing text, one for getting text, this one is getting full very fast. The problem is, that the app doesnt scroll automatically, it always jumps to the "first page", so starting with the first line, and I have to scroll down to see the new text.

DKT

David Crow10-Nov-04 5:08

10-Nov-04 5:08

Ok, that makes more sense. When you receive text from the person you are chatting with, how are you adding it to the edit control?

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

Anonymous10-Nov-04 20:11

10-Nov-04 20:11

By using MFC:

Filling the member variable, and call an UpdateData(false)!

I fill the membervariable by adding the new text to the old, and ending with a \r\n

m_var+=text+"\r\n";
UpdateData(false);

DKT

Anonymous11-Nov-04 1:55

11-Nov-04 1:55

Ok, I managed it by showing the newest message as first entry. But I still would like to know how to solve the above mentioned problem!

DKT

David Crow11-Nov-04 3:47

11-Nov-04 3:47

I think something like this is what you are after:

CString strText;
 
// how much text is currently in the edit control
m_edit.GetWindowText(strText);
 
// set the insertion point at the end of the text
m_edit.SetSel(strText.GetLength(), strText.GetLength(), FALSE);
 
// add CR/LF to end of text to be added
strText += "\r\n";
 
// add text to end of edit control
m_edit.ReplaceSel(strText);

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

Nicknz2-Feb-05 16:23

Nicknz

2-Feb-05 16:23

Here is another way I have found to achive a scroll.

//Update Edit String IDC_STRING is the name of my edit box
//and temp_str is the name of the string to write to the dialog box.
dlg.SetDlgItemText(IDC_STRING,temp_str);
//Scroll to bottom.
dlg.SendDlgItemMessage(IDC_STRING, WM_VSCROLL, SB_BOTTOM, 0);

(I made my dialog global).

Second Window after first window

BenBaris11-Aug-05 15:15

BenBaris

11-Aug-05 15:15

Thank you DavidCrow. this was the solution which I was searching for months.

You've done a good job.

Thank you for your guidance.

sampal9-Nov-04 23:15

sampal

9-Nov-04 23:15

Hello friends
I am facing the following simple problem (as I am very new to VC++). The purpose is to display second window/screen after the user clicks 'OK' in the first window/screen. But the problem is that the second window fails to get displayed. The code has been written as below...
Please help....
Thanks

BOOL CMyDialog::InitInstance()
{
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);

AfxEnableControlContainer();

#ifdef _AFXDLL
Enable3dControls();
#else
Enable3dControlsStatic();
#endif

CDialogfirstwindow dlg1;
m_pMainWnd = &dlg1;
int nResponse1 = dlg1.DoModal();
// The first window is successfully displayed
if (nResponse1 == IDOK)
{
//#if defined REQUIRED_CODE :
// This code has been introduced thinking that new window
// may need re-intialization..
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);

AfxEnableControlContainer();

#ifdef _AFXDLL
Enable3dControls();
#else
Enable3dControlsStatic();
#endif
// #endif
CDialogsecondwindow dlg2;
// The Second window fails to get displayed
m_pMainWnd = &dlg2;
int nResponse2 = dlg2.DoModal();
if (nResponse2 == IDOK)
{
}
else if (nResponse2 == IDCANCEL)
{
}
}
else if (nResponse1 == IDCANCEL)
{
}
return FALSE;
}

Re: Second Window after first window

David Crow10-Nov-04 3:26

Re: Second Window after first window

10-Nov-04 3:26

This has to do with m_pMainWnd and it's being assigned a NULL value. Read here for more.

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

sampal10-Nov-04 5:30

sampal

10-Nov-04 5:30

Thanks a lot..David..I got it done..

Sam

Combining properties of Modal && modeless dialogs

Cedric Moonen9-Nov-04 22:48

Cedric Moonen

9-Nov-04 22:48

Hello !
I need to have a dialog that will be used like a modal dialog box from an user point of view (so it means, the user can only interract with this dialog and no more with the program itself) BUT I need to work with it like a modeless dialog box from the code point of view (so it means that the program cannot be interrupted and must still run and print data in the underground window).

Is it possible to specify a modeless dialog to act like this ??
Thanks

Re: Combining properties of Modal && modeless dialogs

Nitron10-Nov-04 10:54

Nitron

10-Nov-04 10:54

Spawn the modal dialog in its own thread. i.e., in the mainframe, set up a thred function that calls dialog.domodal() and in the event handler that spawns the dialog, do AfxBeginThread(YourThreadProc, this); That should work.

~Nitron.

ññòòïðïðB A start

Re: Combining properties of Modal && modeless dialogs

Cedric Moonen15-Nov-04 1:53

Cedric Moonen

15-Nov-04 1:53

Hi thank you for your response... and sorry for the delay (I had a very very long week-end Wink | ;)

).
The problem is that I need to send data to the dialog (a new data every 10 msec approximatively). The dialog will then print this data on screen. So, if my dialog is called with DoModal, I cannot send anymore data to it and that's a problem. And I cannot get the data from within the dialog, it must be sent to it.

Any idea ?

Thanks

Process handle table access

adnan pathan9-Nov-04 22:04

adnan pathan

9-Nov-04 22:04

dear buddies
can some buddy help me out the problem that i am in . i am working on operating system project and i need a way how to get access to process handle table in kernal address space
ok

sunny

How MSN detects network connection

Mike Melnikov9-Nov-04 21:45

Mike Melnikov

9-Nov-04 21:45

i wonder, how MSN detects network connection, not internet but network connection, after that it tries to login user.

interesting fact is that i specified wrong DNS and gateway, but MSN detected local area network and tried to connect to its server.

so may be it use some system notifications? what do you think? really it can help me a lot.

thank your, Mike.

Bold font in CTreeCtrl truncates text

anderslundsgard9-Nov-04 21:16

anderslundsgard

9-Nov-04 21:16

I have changed the font on some of my CTreeCtrl items.

The thing is that, when changing the font to for e.g. bold the text (in WinXP anyway) becomes to wide so the last letters are missing in the text-drawing region. Anyone have encountered the same problem?

_____________________________

...and justice for all

APe

Ted Ferenc9-Nov-04 21:37

Ted Ferenc

9-Nov-04 21:37

You get a similar problem if your PC uses large fonts and you run the prog on a PC with small fonts. The PC with the smal fonts has the text truncated, usually aparent if static controls

"An expert is a person who has made all the mistakes that can be made in a very narrow field." - Neils Bohr

anderslundsgard9-Nov-04 21:46

anderslundsgard

9-Nov-04 21:46

Sum.. I can do nothing about it?

Except add some spaces att the end of the item text Smile | :)

_____________________________

...and justice for all

APe

Ted Ferenc9-Nov-04 21:54

Ted Ferenc

9-Nov-04 21:54

I can't comment I can't remember ever having this problem on a tree control, sorry

"An expert is a person who has made all the mistakes that can be made in a very narrow field." - Neils Bohr

detecting internet enabled program

Robert M Greene10-Nov-04 8:17

Robert M Greene

10-Nov-04 8:17

Put
SendMessage(CCM_SETVERSION, 5);
in OnInitialUpdate();

There's more to it than that, but that will get you started.

.............................
There's nothing like the sound of incoming rifle and mortar rounds to cure the blues. No matter how down you are, you take an active and immediate interest in life.

Fiat justitia, et ruat cælum

Anonymous9-Nov-04 20:39