How to Maxmize MDIChildWnd,and make them always in max size? - C / C++ / MFC Discussion Boards

<color>Aljechin 4-Apr-06 21:56

4-Apr-06 21:56

I tried to compile a simple unicode DLL, in both Release and Debug mode. This DLL, when called will show a message box with some unicode text. The Debug mode DLL works very fine. The release mode DLL is crashing after I call it the first time. I do not understand this. What exactly should I do to make the Release mode DLL work fine? I have read Joseph M. Newcomers essay about Release Vs debug. I did not find my answer in that. I am not using any variables any structures, etc.

Regards,
Aljechin Alexander

Re: Debug Vs Release

Giannakakis Kostas4-Apr-06 23:25

Giannakakis Kostas

4-Apr-06 23:25

The answer is probably in the essay you 've already read! You provide very little information to anyone be able to give you an aswer. Try to figure out at what line of code the dll crashes. The most probable reason for the crash is an uninitialized variable.

Sir , I want to Know Why DataBase Application is giving a Error As CRecordSet Base Calss Undefined? and how can i fix it.

CodeVarma4-Apr-06 20:42

CodeVarma

4-Apr-06 20:42

Sir , I want to Know Why DataBase Application is giving a Error As CRecordSet Base Calss Undefined? and how can i fix it.

What i did is as follows
1)I have Taken a SDI App with its Views BaseClass as CFormView.
2)Derived new Class From CRecordSet named CStuRecSet and Selected Corresponding Data Source.
3) and Later I Declared and Object of m_StuRecSet of type CStuRecSet in Document Class.

sir pls tell how to clear this error(CRecordSet Base Class Undeclared) Big Grin | :-D

Fly Like An Eagle With MIGHTY POWER.

Re: Sir , I want to Know Why DataBase Application is giving a Error As CRecordSet Base Calss Undefined? and how can i fix it.

Nibu babu thomas4-Apr-06 20:52

Nibu babu thomas

4-Apr-06 20:52

satishvarma_e wrote:
sir pls tell how to clear this error(CRecordSet Base Class Undeclared)

Because you haven't included afxdb.h.

Nibu thomas
Software Developer

Create another view on file new.

yang__lee4-Apr-06 19:51

yang__lee

4-Apr-06 19:51

Hi,
I am trying to have two views on file new on the same document and initiate windows tile command. I put the following code in the CChkBookApp::initinstance function at the bottom after all templates and window is created. But I get error. How to solve this. Thanks lee

CChkBookDoc* pDoc = (CChkBookDoc*)pMainFrame->GetActiveDocument();
if (pDoc == NULL)
return NULL;

CFrameWnd* pNewFrame = m_pCheckViewTemplate->CreateNewFrame(pDoc, NULL);
if (pNewFrame == NULL)
return pDoc;

m_pCheckViewTemplate->InitialUpdateFrame(pNewFrame, pDoc);

// Tile the two MDI children windows within the MDI frame window.
ASSERT_KINDOF(CMDIChildWnd, pNewFrame);
CMDIFrameWnd* pMDIFrameWnd = ((CMDIChildWnd*)pNewFrame)->GetMDIFrame();
ASSERT(pMDIFrameWnd != NULL);
pMDIFrameWnd->MDITile(MDITILE_HORIZONTAL);

Re: Create another view on file new.

Nibu babu thomas4-Apr-06 21:05

Nibu babu thomas

4-Apr-06 21:05

yang__lee wrote:
But I get error.

What is the error!

Nibu thomas
Software Developer

Re: Create another view on file new.

Russell^'4-Apr-06 22:52

Russell^'

4-Apr-06 22:52

If the error comes when you create the new view then
the code that you can find in
CMDIFrameWnd::OnWindowNew()
is a good example to open correctly a window on a MDI application.

The tile operations looks ok.

Have a nice code day Wink | ;)

How to Maxmize MDIChildWnd,and make them always in max size?

bruspark4-Apr-06 19:22

bruspark

4-Apr-06 19:22

I am a beginner of MFC.

this time i want to use MFC wizzard with MDI.
I add
cs.style |=WS_MAXIMIZE;
cs.style &= ~(WS_MINIMIZEBOX| WS_MAXIMIZEBOX )
in CChildFrame::PreCreateWindow()to create childframes maxmized when they are created.and disable the MINIMIZEBOX and MAXIMIZEBOX .

when child frame is created,it did show with maxmized;
I clicked the minmize button at the system menu(not in childframe title),it doesn't work(&~WS_MINIMIZEBOX),

the problem is:when i clicked the maxmize button at system menu,child frame resized and placed to the full client of the Mainframe.
and there is no minmize and maxmize button on the title of child frame.
That's why? i had added the "&~WS_MAXIMIZEBOX ".

Who can help me .
I will appreciate much!

bruspark

-- modified at 1:23 Wednesday 5th April, 2006

Re: How to Maxmize MDIChildWnd,and make them always in max size?

Nibu babu thomas4-Apr-06 20:54

Nibu babu thomas

4-Apr-06 20:54

Can you be more specific as to what you wish to do.

Nibu thomas
Software Developer

Re: How to Maxmize MDIChildWnd,and make them always in max size?

bruspark4-Apr-06 22:03

bruspark

4-Apr-06 22:03

Hi,Nibu
Here is what i want to...

first,make each MDIChildFrame show in the client of MainFrame with maxsize.next time when i switch between the childframes,they should also show with maxzize.

second,I wish to disable the maximize button minimize button on the child frame,but the close button should be usable.

any one who know please tell me.
Waiting for your reply.Thanks!

Bruspark

Re: How to Maxmize MDIChildWnd,and make them always in max size?

Nibu babu thomas4-Apr-06 22:24

Nibu babu thomas

4-Apr-06 22:24

bruspark wrote:
first,make each MDIChildFrame show in the client of MainFrame with maxsize.next time when i switch between the childframes,they should also show with maxzize.

Add a message map entry for ON_WM_CHILDACTIVATE.

Override OnActivate(int nCmdShow);

Call ShowWindow inside OnActivate

eg: ShowWindow(SW_MAXIMIZE);

bruspark wrote:
second,I wish to disable the maximize button minimize button on the child frame,but the close button should be usable.

Override PreCreateWindow and add this line

cs.style &= ~WS_SYSMENU;

//Well this removes the close button too.

Nibu thomas
Software Developer

Re: How to Maxmize MDIChildWnd,and make them always in max size?

bruspark5-Apr-06 18:10

bruspark

5-Apr-06 18:10

Thank you for your reply!
I have tried your method. It workes!!Thanks a lot!

I overide the PreTranslateMessage() fuction to catch the SC_RESTORE message and do nothing ,so the maximize button (in fact it is restore button.) doesn't work when you click it..

bruspark

Re: How to Maxmize MDIChildWnd,and make them always in max size?

Nibu babu thomas5-Apr-06 18:28

Nibu babu thomas

5-Apr-06 18:28

bruspark wrote:
I overide the PreTranslateMessage() fuction to catch the SC_RESTORE message and do nothing ,so the maximize button (in fact it is restore button.) doesn't work when you click it..

Great idea! Big Grin | :-D

Nibu thomas
Software Developer

Finding the break character in word wrapping

Shailesh Ha4-Apr-06 18:57

Shailesh Ha

4-Apr-06 18:57

Is ther any function in MFC to get the break character position (i.e position in the text at which the text breaks for word wrapping).

Kindly let me know
Thanks

Re: Finding the break character in word wrapping

includeh104-Apr-06 19:05

includeh10

4-Apr-06 19:05

line break character?

which are "\r\n" (2 chars - notepad) or '\n' (1 char - richedit).

functions are:
strstr(...) and strchr(...) for position.

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Width of logfont

Shailesh Ha4-Apr-06 18:53

Shailesh Ha

4-Apr-06 18:53

Is ther a way to get the exact width of any character in a text i.e LOGFONT .

I do not want the average width or the maximum/minimum width.

if ne1 does know then
Kindly reply to tis msg

Thank u

Re: Width of logfont

includeh104-Apr-06 19:24

includeh10

4-Apr-06 19:24

try to display all chars on a control, such as CEdit, then use CEdit::PosFromChar(...) function to receive their positions.
or use CDC::GetTextExtent(...).

LOGFONT doesn't contain info about a specified character.

Status Bar problem -> urgent please

RockyJames4-Apr-06 18:19

RockyJames

4-Apr-06 18:19

Hi,
I have taken and MDI application.CMainFrame class in OnCreate() function.
m_wndStatusBar.SetBorders(2,17,2,17);The height of the staus bar is increased as required,i have done this uisng VC.6...But when i did same thing in VC2005...the statusbar is drawn properly....is there any specific reason?.If i update my application from vc.6 to VC2005 will support new framework..? or is there any other to increase the height of the status bar, without changing the Font...

Thanks in before
Jamesrocky

-- modified at 0:53 Wednesday 5th April, 2006

Re: Status Bar problem -> urgent please

includeh104-Apr-06 18:59

includeh10

4-Apr-06 18:59

in VC6, "the staus bar is increased as required"
in VC2005, "the statusbar is drawn properly"

what is your problem?

Re: Status Bar problem -> urgent please

RockyJames4-Apr-06 19:20

RockyJames

4-Apr-06 19:20

Sorry in VC2005 its was not drawn properly....

Re: Status Bar problem -> urgent please

Hamid_RT4-Apr-06 19:37

Hamid_RT

4-Apr-06 19:37

Hi RockyJames,
what's your problem?Statusbar(Height)
CStatusBarCtrl maybe it is some helpful to you I'm not sure

Standalone application

Sendilkumar.M4-Apr-06 17:09

Sendilkumar.M

4-Apr-06 17:09

I want to develop some standalone application. That is without having Operation System boot loader has to load my application. Is that possible?

Smile | :)

M.Sendilkumar
Thomson

Re: Standalone application

Ștefan-Mihai MOGA4-Apr-06 20:51

Ștefan-Mihai MOGA

4-Apr-06 20:51

Sorry to say it, but I think that's impossible to do.
Do you want to create your own operating system for that?

Re: Standalone application

toxcct4-Apr-06 21:50

toxcct

4-Apr-06 21:50

of course that is possible !!

how do you think OS installer do ?

Re: Standalone application

toxcct4-Apr-06 21:52

toxcct

4-Apr-06 21:52

man, that's a big task you're asking about...

you may need to write a bootstrap from scratch !!

but as i don't know more about your project (target plateform, Proc SC, Dev IDE)...

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