C / C++ / MFC Discussion Boards

sonualex15-Oct-09 3:32

15-Oct-09 3:32

hii david...

how can i assign the CEdit m_edit variable with the string which we add in edit box ??
With the previous code how can i modify and make it work....

Re: Cursor in edit box

David Crow15-Oct-09 4:10

David Crow

15-Oct-09 4:10

sonualex wrote:
how can i assign the CEdit m_edit variable with the string which we add in edit box ??

SetWindowText().

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Re: Cursor in edit box

sonualex15-Oct-09 22:38

sonualex

15-Oct-09 22:38

hi david..
i tried with SetWindowText too.. but i cant find any change ...
can u plz mention where exaclty i have to add these changes for making this work..
anythng to be changed in class wizards ?

thanku so much

Re: Cursor in edit box

David Crow16-Oct-09 2:34

David Crow

16-Oct-09 2:34

sonualex wrote:
can u plz mention where exaclty i have to add these changes for making this work..

You call SetWindowText() wherever you want the contents of the edit control changed.

Re: Cursor in edit box

sonualex21-Oct-09 0:26

sonualex

21-Oct-09 0:26

thanks david for ur help...

SetLimitText is giving an assertion failure once i keep it in OnInitDialog()...
SetWindowText and GetwindowText as per my understanding should be kept where we change the text in edit box.. as i told earlier i have not created any function for editbox...

my understanding is the text we enter in editbox is
m_sedit1 = _T("") which is in
CNoteDlg::CNoteDlg(CWnd* pParent /*=NULL*/): CDialog(CNoteDlg::IDD, pParent)

and the ::DoDataExchange(pDx)
DDV_MaxChars(pDX, m_sedit1, 1000);

plz letme knw if im not giving u the correct picture of my code...

hope u wud continue helping me..
thanku so much

Re: Cursor in edit box

David Crow21-Oct-09 2:29

David Crow

21-Oct-09 2:29

sonualex wrote:
SetLimitText is giving an assertion failure once i keep it in OnInitDialog()...

What does the suspect code look like?

sonualex wrote:
SetWindowText and GetwindowText as per my understanding should be kept where we change the text in edit box.. as i told earlier i have not created any function for editbox...

I'm not sure what a "function for editbox" is.

sonualex wrote:
my understanding is the text we enter in editbox is
m_sedit1 = _T("") which is in

I indicated here that you should use a CEdit object instead.

sonualex wrote:
plz letme knw if im not giving u the correct picture of my code...

I know exactly what you are doing, but you have to be willing to implement my suggestions.

Re: Cursor in edit box

sonualex21-Oct-09 19:24

sonualex

21-Oct-09 19:24

Hi david ...

Iam following ur suggestions truely...thanku so much for ur patience...
Asserion faliure is showing in AFXWIN2.lnl line 881....
Dont know how to solve that...
OnInitDialog is not allowing to keep CEdit m_edit1;
m_edit1.SetLimitText (1000); in it....

What i meant by function is if we click on EN_CHANGE it will ask for add function OnChangeEdit1()..

Presently iam stuck with CEdit SetlimitText,SetWindowText and GetWindowText.. Frown | :(

plz bear with me

Re: Cursor in edit box

David Crow22-Oct-09 2:41

David Crow

22-Oct-09 2:41

sonualex wrote:
Iam following ur suggestions truely...thanku so much for ur patience...
Asserion faliure is showing in AFXWIN2.lnl line 881....
Dont know how to solve that...

You should start by looking at line #881 of afxwin2.inl. It is asserting that a valid window handle exists, which obviously does not.

sonualex wrote:
OnInitDialog is not allowing to keep CEdit m_edit1;

Are you declaring this variable in OnInitDialog()?

Re: Cursor in edit box

sonualex26-Oct-09 1:54

sonualex

26-Oct-09 1:54

hello david .. im in right track now.. thanks for ur immense support..
now im able to limit the text.. cursor pblm is solved..
but at the same time.. i have been using CString for saving and opening the contents in edit box now how can i do that using CEdit..

hope u remembr my piece of code for OnSave and OnOpen earlier posted ....

Re: Cursor in edit box

David Crow26-Oct-09 3:05

David Crow

26-Oct-09 3:05

sonualex wrote:
...i have been using CString for saving and opening the contents in edit box now how can i do that using CEdit.

By using SetWindowText() and GetWindowText().

Re: Cursor in edit box

sonualex26-Oct-09 19:42

sonualex

26-Oct-09 19:42

thanks a lot David... it worked perfectly...
thanku so much... Smile | :)

Re: Cursor in edit box

sonualex26-Oct-09 19:43

sonualex

26-Oct-09 19:43

hi der David... it worked perfectly...
thanku so much... Smile | :)

thanks a ton Smile | :)

Visual Studio 2008 Setup Project Question ?

ERLN13-Oct-09 18:16

ERLN

13-Oct-09 18:16

I have written Installation using Visual Studio 2008 Setup project. I have created a GUI for installing specific product (using check box dialog). but I need the same gui for uninstallation also.
Means if unchecked that product should be uninstalled. all other products should remain same. any suggestion how to do it in Visual Studio 2008 setup project.I used only C++ base installation. No .net dependencies.

DDX_CONTROL vs Create for Cricheditctrl and effects on Streaming

ForNow13-Oct-09 13:47

ForNow

13-Oct-09 13:47

Hi,

I have been using DDX_CONTROL to Attach My Cricheditctrl to my resource multiline edit control

For some reason this stops the CRichedit.Streamin from working

With ::Create no problem

Was wondering if anybody had any insights

As I always like to know the reason why things work or Don't

thankx...

Re: DDX_CONTROL vs Create for Cricheditctrl and effects on Streaming

Code-o-mat13-Oct-09 20:50

Code-o-mat

13-Oct-09 20:50

Please explain what you mean by "stops from working". Does it crash, does it stop on an assert, does it simply not load the content? How and where did you try to use it?

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

Re: DDX_CONTROL vs Create for Cricheditctrl and effects on Streaming

ForNow14-Oct-09 3:34

ForNow

14-Oct-09 3:34

The content doesn't load

Maybe the FrameWork expects me to use DDX

to read and write data after connecting the

resource item to the CRichEditctrl object don't

know

but If I do CRichedictrlptr *CRicheditrl =

CDialog.GetDlgItem(IDC_RICHEDIT)

I able to populate the Richedit using the

Streamin method

Re: DDX_CONTROL vs Create for Cricheditctrl and effects on Streaming

Code-o-mat14-Oct-09 5:24

Code-o-mat

14-Oct-09 5:24

ForNow wrote:
Maybe the FrameWork expects me to use DDX

to read and write data after connecting the

resource item to the CRichEditctrl object

I highly doubt that.
Could it be that maybe you are trying to load that content before DoDataExchange runned?

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

Re: DDX_CONTROL vs Create for Cricheditctrl and effects on Streaming

ForNow14-Oct-09 7:05

ForNow

14-Oct-09 7:05

I have a call to the Default
CDialog::DoDataexchange

In my overridable version

Not sure what that does I'll comment that out

and See what happens

Thankx

Re: DDX_CONTROL vs Create for Cricheditctrl and effects on Streaming

Code-o-mat14-Oct-09 8:08

Code-o-mat

14-Oct-09 8:08

I believe you misunderstod something.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

Re: DDX_CONTROL vs Create for Cricheditctrl and effects on Streaming

ForNow14-Oct-09 12:21

ForNow

14-Oct-09 12:21

The streamin method should work after DDX_CONTROL

I have to have a closer look at my Code

at this point I am thinking that I dont have to Call UpdateData as that is

Done automatically by the default CDialog::Oninitdialog

Which I have in my OnInitdialog

I'll take a closer look

thankx

Get OS information

includeh1013-Oct-09 10:52

includeh10

13-Oct-09 10:52

I need to get OS info,

1. name: i.e. Windows XP, WinNT 4 etc.
2. edition: i.e. Server, professional, standard etc.

The info should start from Win98 (or Win2K) and up to latest one.
- is the latest one Windows 7 now?

I have C code to show up to XP, do you have code for new OS?

Re: Get OS information

«_Superman_»13-Oct-09 11:18

«_Superman_»

13-Oct-09 11:18

Use the GetVersionEx[^] API to get the version of the running OS.
Look into the remarks section of the documentation for OSVERSIONINFOEX[^] for the list of OS codes.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Binary Tree traversal

mood4813-Oct-09 6:39

mood48

13-Oct-09 6:39

Hi all,
I have a problem in implementing tree traversal using c++, i want to display the output of tree traversal: inorder, preorder, postorder in tree form, this means i should include some graphic codes so as to display the tree format on the screen. I don't have idea how to use graphics to display the output on the screen.
Please help me

Re: Binary Tree traversal

David Crow13-Oct-09 7:03

David Crow

13-Oct-09 7:03

See here.

I've also seen implementations where the tree was laying on its side. It's a recursive approach.

Re: Binary Tree traversal

Alan Balkany15-Oct-09 4:40

Alan Balkany

15-Oct-09 4:40

First you need to learn how to draw lines on the screen. If you're using MFC, look at OnDraw and the CDC class. Then you can look at writing text if you need to do that.

For arranging the binary tree on the screen, a good approach is to space the leaf nodes out evenly horizontally. Then each parent node goes halfway between its sons, on the row above.

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