Re: Terminate application during creation - C / C++ / MFC Discussion Boards

Re: Impossible to start specified application... [modified]

Mark Salsbery8-Jan-07 7:10

8-Jan-07 7:10

Try installing this:
Microsoft Visual C++ 2005 Redistributable Package[^]

-- modified at 13:15 Monday 8th January, 2007

More info: Redistributing Visual C++ Files[^]

Re: Impossible to start specified application...

ayol121228-Jan-07 10:35

ayol12122

8-Jan-07 10:35

thank you very much!!
it solved the problem!

Can't Create New Class with Wizard

Reagan Conservative8-Jan-07 6:33

Reagan Conservative

8-Jan-07 6:33

Is there some reason why, when I create a new dialog (CMyKeypad) that I get an error message from the Class Wizard stating:

"Unable to open the files (directory path) for class CMyKeypad".

Thanks

John P.

Re: Can't Create New Class with Wizard

Trollslayer8-Jan-07 6:35

Trollslayer

8-Jan-07 6:35

Can you manually (e.g. with Windows Explorer) create a file in that location?

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Re: Can't Create New Class with Wizard

Reagan Conservative8-Jan-07 6:43

Reagan Conservative

8-Jan-07 6:43

I can create a Word file in that directory with no problem

John P.

Terminate application during creation

baerten8-Jan-07 5:01

baerten

8-Jan-07 5:01

Hi,

During the creation of the MainFrame, i call a function called StartUp,
which initialises different configs.

If something goes wrong during this initialisation, i would close the application.

an exit(1) terminates hardly the program and provokes MemoryLeaks ( Destructor isn't called )

Anyone an idea?

Thanks Smile | :)

Re: Terminate application during creation

David Crow8-Jan-07 5:04

David Crow

8-Jan-07 5:04

baerten wrote:
an exit(1) terminates hardly the program and provokes MemoryLeaks ( Destructor isn't called )

Which means you should not be using exit(). Send a WM_CLOSE message instead.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: Terminate application during creation

jhwurmbach8-Jan-07 5:38

jhwurmbach

8-Jan-07 5:38

So you are in (your CFrameWnd-derived class) CMainFrame::OnCreate?

Simply

return -1<br />

this is the official notification that the creation went wrong.

See the MFC-standard code:

if (!m_wndToolBar.CreateEx( this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
        AfxMessageBox( "Failed to create wndToolBar\n", MB_ICONERROR);
		return -1;      // fail to create
	}

"We trained hard, but it seemed that every time we were beginning to form up into teams we would be reorganised. I was to learn later in life that we tend to meet any new situation by reorganising: and a wonderful method it can be for creating the illusion of progress, while producing confusion, inefficiency and demoralisation."

-- Caius Petronius, Roman Consul, 66 A.D.

Thanks

baerten9-Jan-07 21:35

baerten

9-Jan-07 21:35

Thanks you two Smile | :)

ADO cannot restore connection

Daniel Kanev8-Jan-07 4:47

Daniel Kanev

8-Jan-07 4:47

I am using ADO to connect to an ORACLE database. After a network failure (disable/enable network interface or unplug/plug network cable) ADO cannot restore the connection. I close the connection, then even create a new one with CoCreateInstance but queries rise exception
ORA-03114: not connected to ORACLE. Do you know how to solve this?

modified 8-Mar-17 3:50am.

Forcing cursur to stay in CEdit

Shay Harel8-Jan-07 4:21

Shay Harel

8-Jan-07 4:21

Hi,

This is actually a second part to a previous option.
Assuming I "caught" the VK_TAB in PreTranslateMessage function of my custom CEdit control and did what I want.
Now, how do I force the cursor to stay at the end of the line inside my CEdit control. right now, after I am done processing the VK_TAB, the focus goes to the next control. I want to prevent that.

I tried SetFocus and return w/o running the CEdit::PreTranslateMessage after my processing but that did not help.

Thank.

Re: Forcing cursur to stay in CEdit [modified]

CPallini8-Jan-07 4:29

CPallini

8-Jan-07 4:29

from MSDN Pretran

CWnd::PreTranslateMessage
virtual BOOL PreTranslateMessage( MSG* pMsg );
Return Value
Nonzero if the message was translated and should not be dispatched;
0 if the message was not translated and should be dispatched.

Hence you have simply make your PreTranslateMessage implemantation to return 0 when Tab is intercepted.

Smile | :)

-- modified at 13:26 Monday 8th January, 2007

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: Forcing cursur to stay in CEdit

toxcct8-Jan-07 4:35

toxcct

8-Jan-07 4:35

please don't use the <pre> tag to quote long sentences. this enforce the page to display the line till the end, requiering us to scroll then...

Don't know where to start ?
Refer the Forums Guidelines and ask a friend

[VisualCalc 3.0][Flags Beginner's Guide]

OK teacher!

CPallini8-Jan-07 7:28

CPallini

8-Jan-07 7:28

I've modified it.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Problem using then event of OnSize

Nothend8-Jan-07 3:56

Nothend

8-Jan-07 3:56

I built a demo project that using OLE-DB,I add two controls on my form
(Single Document),one is DataGrid,the other is ADODC,What my purpose is that I want to resize the size of the two controls when the form shows,the variables that connect to the two controls are m_DataGrid and m_AdoDC;
the code is as followed:
void CADO2View::OnSize(UINT nType, int cx, int cy)
{
int iHeight;
int iWidth;
CRect oRect;
COleDBRecordView::OnSize(nType, cx, cy);
if (m_AdoDC.m_hWnd==NULL||m_DataGrid.m_hWnd==NULL)
{
return;
}
else
{
m_AdoDC.GetClientRect(oRect);
iHeight=oRect.Height();
iWidth=oRect.Width();
m_AdoDC.MoveWindow(0,0,iWidth,iHeight,TRUE);
m_DataGrid.MoveWindow(0,iHeight,cx,xy,TRUE);
}
}
But the code doesn't work,so how to resize the controls when the form shows?

Nothend

-- modified at 19:51 Monday 8th January, 2007

Re: Problem using then event of &amp;amp;quot;OnSize&amp;amp;quot;

Cedric Moonen8-Jan-07 4:10

Cedric Moonen

8-Jan-07 4:10

Nothend wrote:
But the code doesn't work,so how to resize the controls when the form shows?

What happens exaclty ? What does 'not working' mean ?

Also, use the pre or code tag when you post code (it will make it more readable)

Cédric Moonen
Software developer

Charting control [v1.1]

Re: Problem using then event of OnSize

Nothend8-Jan-07 13:50

Nothend

8-Jan-07 13:50

I am sorry about that,because I am a student from China,my English is poor.
What I want is that when the view shows,the DataGrid and the ADODC will position the right place on the form(view),not the place I put when using the control bar.
As the code shows that,the event of OnSize takes place first than that of
DoDataExchange,so the two variables(m_AdoDC and m_DataGrid) are null when OnSize takes place.
I use PostMessage(WM_SIZE) in the event of OnInitialUpdate,and then it happpens,but the control ADODC doesn't move when I pull the form ,and the DataGrid does.
So how can I do ?
Thanks a lot!

Nothend

Re: Problem using then event of &amp;amp;quot;OnSize&amp;amp;quot;

Cedric Moonen8-Jan-07 4:19

Cedric Moonen

8-Jan-07 4:19

Well, I didn't look at all the details of your code for my previous answer (your explanation was a bit vague). But I think the problem is here:

Nothend wrote:
m_AdoDC.GetClientRect(oRect);
iHeight=oRect.Height();
iWidth=oRect.Width();
m_AdoDC.MoveWindow(0,0,iWidth,iHeight,TRUE);
m_DataGrid.MoveWindow(0,iHeight,cx,xy,TRUE);

You said that m_AdoDC is a member of your class, so it will never resize. The only thing that is resizing is your view. So what you need to do is retrieve the new size of your view (using GetClientRect) and then calculate the new sizes of the two other controls.

Cédric Moonen
Software developer

Charting control [v1.1]

Re: Problem using then event of &amp;amp;quot;OnSize&amp;amp;quot;

Nothend8-Jan-07 13:52

Nothend

8-Jan-07 13:52

I am sorry about that,because I am a student from China,my English is poor.
What I want is that when the view shows,the DataGrid and the ADODC will position the right place on the form(view),not the place I put when using the control bar.

As the code shows that,the event of OnSize takes place first than that of
DoDataExchange,so the two variables(m_AdoDC and m_DataGrid) are null when OnSize takes place.

I use PostMessage(WM_SIZE) in the event of OnInitialUpdate,and then it happpens,but the control ADODC doesn't move when I pull the form ,and the DataGrid does.

So how can I do ?
Thanks a lot!

Re: Problem using then event of &amp;amp;quot;OnSize&amp;amp;quot;

Hamid_RT8-Jan-07 17:38

Hamid_RT

8-Jan-07 17:38

You can use of SendMessage(WM_SIZE)

WhiteSky

Re: Problem using then event of OnSize

Hamid_RT8-Jan-07 17:37

Hamid_RT

8-Jan-07 17:37

Why it dosent work?

WhiteSky

Re: Problem using then event of OnSize

Nothend8-Jan-07 18:33

Nothend

8-Jan-07 18:33

Because the event of OnSize takes place first than that of DoDataExchange,so the controls' m_hWnds are null.

I have used the PostMessage(WM_SIZE),it works,but the ADODC control can't move,I don't know why.
Thanks

Nothend

Re: Problem using then event of OnSize

Hamid_RT8-Jan-07 19:15

Hamid_RT

8-Jan-07 19:15

What happens if you insert ScreenToClient/*for converts coordinates */ after m_AdoDC.GetClientRect(oRect);

m_AdoDC.GetClientRect(oRect);
m_AdoDC.ScreenToClient(oRect);

WhiteSky

Re: Problem using then event of OnSize

Nothend8-Jan-07 20:04

Nothend

8-Jan-07 20:04

It's all the same .
Nothing happen.

Nothend

Re: Problem using then event of OnSize

Nothend8-Jan-07 20:09

Nothend

8-Jan-07 20:09

Do you mind that I send you a email including the demo code to you?

Nothend

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