Re: Multi-SDI with MFC - C / C++ / MFC Discussion Boards

Re: CEdit style

PJ Arends30-Jul-02 0:28

PJ Arends

30-Jul-02 0:28

ES_NUMBER

#define ES_NUMBER 0X2000L

CPUA 0x5041

Sonork 100.11743 Chicken Little

"So it can now be written in stone as a testament to humanities achievments "PJ did Pi at CP"." Colin Davies

Within you lies the power for good - Use it!

Re: CEdit style

Renjith Ramachandran30-Jul-02 0:49

Renjith Ramachandran

30-Jul-02 0:49

Thanks Arends....

Renjith-CPian.

Question about auto_ptr

pankajdaga29-Jul-02 23:33

pankajdaga

29-Jul-02 23:33

Hello everyone,

I have a question about the STL auto_ptr class. The following code works:

auto_ptr <complex> testPass();

int main()
{
cout << "Program started. Tesing complex numbers... \n";
cout << testPass()->Im() <<"\n";
return 0;
}

auto_ptr<complex> testPass()
{
auto_ptr <complex> test1(new Complex(3.0, 4.0));
cout << test1->Im() << "\n";
return test1;
}

How is it that I can pass an auto_ptr between functions. Shouldn't the test1 object go out of scope now and hence get destroyed. If the auto_ptr does get passed between scopes, when does it get out of scope and the destructor for Complex is called??

Thanks Rose | [Rose]

,

Pankaj

Without struggle, there is no progress

Re: Question about auto_ptr

Daniel Lohmann30-Jul-02 2:25

Daniel Lohmann

30-Jul-02 2:25

pankajdaga wrote:
ow is it that I can pass an auto_ptr between functions. Shouldn't the test1 object go out of scope now and hence get destroyed. If the auto_ptr does get passed between scopes, when does it get out of scope and the destructor for Complex is called??

This is because std::auto_ptr maintains an owner flag. Always the last auto_ptr that has been used as L-value is the current owner, all other do not destroy the object.

In your TestPass you use a local variable and return it. At this moment a new instance is created via the copy-constructor and gains ownership. Afterwards the local auto_ptr is destroyed, but does not delete the object because it is not the owner any more.

--

Daniel Lohmann

http://www.losoft.de

Multi-SDI with MFC

Kirill Kovalenko29-Jul-02 22:56

Kirill Kovalenko

29-Jul-02 22:56

Is there a way to create a Multi-SDI appication with MFC? WTL is supported it. I've made a search at the www.google.com, but haven't managed to find examples or articles. Does this mean that MFC have some internal problems to apply such a technique?

Re: Multi-SDI with MFC

Alexandru Savescu29-Jul-02 23:29

Alexandru Savescu

29-Jul-02 23:29

Could you please explain what Multi-SDI means? Is that MDI?

Best regards,
Alexandru Savescu

Re: Multi-SDI with MFC

Kirill Kovalenko29-Jul-02 23:38

Kirill Kovalenko

29-Jul-02 23:38

Multi-SDI is not MDI.
It's a group of SDI applications running in the context of single process. So the can share all the internal data and structures and this way save memory and other resources. Good example of a Multi-SDI application is Internet Explorer

Re: Multi-SDI with MFC

[James Pullicino]30-Jul-02 2:43

[James Pullicino]

30-Jul-02 2:43

Create an SDI app with MFC App Wizard.
Go to you app init instance and look for this code:

pDocTemplate = new CSingleDocTemplate(<br />
    IDR_MAINFRAME,<br />
    RUNTIME_CLASS(CMSDIDoc),<br />
    RUNTIME_CLASS(CMainFrame),       // main SDI frame window<br />
    RUNTIME_CLASS(CMSDIView));<br />
AddDocTemplate(pDocTemplate);

Make a copy of that code and paste it right below it. That should be enough to get you started. Your code should now look like this:

<br />
	// Register the application's document templates.  Document templates<br />
	//  serve as the connection between documents, frame windows and views.<br />
<br />
	CSingleDocTemplate* pDocTemplate;<br />
	pDocTemplate = new CSingleDocTemplate(<br />
		IDR_MAINFRAME,<br />
		RUNTIME_CLASS(CMSDIDoc),<br />
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window<br />
		RUNTIME_CLASS(CMSDIView));<br />
	AddDocTemplate(pDocTemplate);<br />
<br />
	pDocTemplate = new CSingleDocTemplate(<br />
		IDR_MAINFRAME,<br />
		RUNTIME_CLASS(CMSDIDoc),<br />
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window<br />
		RUNTIME_CLASS(CMSDIView));<br />
	AddDocTemplate(pDocTemplate);<br />
<br />
<br />
	// Parse command line for standard shell commands, DDE, file open<br />
	CCommandLineInfo cmdInfo;<br />
	ParseCommandLine(cmdInfo);<br />
<br />

James

Drinking In The Sun
Forgot Password?

Re: Multi-SDI with MFC

Kirill Kovalenko30-Jul-02 3:30

Kirill Kovalenko

30-Jul-02 3:30

Thank you!
Good trick, but it's still not the stuff which I need. It uses one thread and I can open as many new windows as many times I called AddDocTemplate. And when I close first window the rest of windows close too.

Re: Multi-SDI with MFC

Giles30-Jul-02 7:47

Giles

30-Jul-02 7:47

MFC7 has this as in Office 2000 apps.

HELP!!!! ActiveX in Visual C++

mistika29-Jul-02 22:51

mistika

29-Jul-02 22:51

I've generated an ActiveX with Visual C++, it works fine on TestContainer and Visual Basic Forms, but when I put it on a SDI Visual C++ Project in a CFormView it doesn´t work fine.
The buttoms contained in the control ActiveX doesn´t work and it goes to sleep.

Please, Can anybody help me???

Thanks in advance!!!!!

Re: HELP!!!! ActiveX in Visual C++

KingsGambit30-Jul-02 6:29

KingsGambit

30-Jul-02 6:29

In the control's OnCreate function, put ModifyStyleEx(WS_EX_CONTROLPARENT);

Try it. It may work.

Best of luck,

Rejeesh.T.S

How to change value of member within object within CArray ?

rsg_dj29-Jul-02 22:46

rsg_dj

29-Jul-02 22:46

<code></code>eg. How do I assign tc1.x = 20; in TestFunction2() ?

class TestClass1
{
public:
int x;
int y;
}

class TestClass2
{
public:
CArray<TestClass1, TestClass1&> arr;
}

void TestClass2::TestFunction1()
{
TestClass1 tc1;
for(int i=0; i<5; i++)
{
tc1.x = 5;
tc1.y = 10;
arr.Add(tc1);
}
}

void TestClass2::TestFunction2()
{
for(int i=0; i<tc1.GetSize(); i++)
{
tc1.x = 20; // does not work !!!
}
}

rsg_dj

arr.GetAt(...).x=20

Anonymous29-Jul-02 22:54

Anonymous

29-Jul-02 22:54

arr.GetAt(...).x=20

Re: How to change value of member within object within CArray ?

Alexandru Savescu29-Jul-02 23:34

Alexandru Savescu

29-Jul-02 23:34

GetAt will return a copy of the object, not the object itself.
Use ElementAt or operator[]

Best regards,
Alexandru Savescu

Re: How to change value of member within object within CArray ?

Raphael Kindt30-Jul-02 0:05

Raphael Kindt

30-Jul-02 0:05

You can use this:
SetAt(index, element);

Moreover, it's useful to use SetSize(size) for initializes the Array before using it. Frequent re-allocations thus are avoided...

Hello World!!! Smile | :)

from Raphaël

Re: How to change value of member within object within CArray ?

Alexandru Savescu30-Jul-02 0:31

Alexandru Savescu

30-Jul-02 0:31

Well, of course.

Moreover, it's better to use a std::vector don't you think?

Best regards,
Alexandru Savescu

Re: How to change value of member within object within CArray ?

Raphael Kindt30-Jul-02 1:06

Raphael Kindt

30-Jul-02 1:06

Really better... Wink | ;)

;);)

Hello World!!! Smile | :)

from Raphaël

Re: How to change value of member within object within CArray ?

Christian Graus30-Jul-02 2:47

Christian Graus

30-Jul-02 2:47

I know I'm a broken record in this topic, but assuming your question has already been answered, let me add that CArray is CRAP. You should do yourself a favour and read my STL series of articles, starting with the one on vector. Anyone who uses MFC container classes is using stuff written as a stopgap prior to the release of STL, and is selling themselves way short.

Read the articles and I am sure you will agree. CArray cannot do half of what vector does.

Christian

We're just observing the seasonal migration from VB to VC. Most of these birds will be killed by predators or will die of hunger. Only the best will survive - Tomasz Sowinski 29-07-2002 ( on the number of newbie posters in the VC forum )

Standard Radio Buttons

silverspoon29-Jul-02 22:10

silverspoon

29-Jul-02 22:10

I have the following trouble with !STANDARD! Radio Buttons:
I place 2 or more RadioButtons in Resource-Editor, I give the first element the group-flag via the property sheet and add one int variable to the first element. after that in InitDialog I do the following:
m_radioval = 1;
UpdateData(FALSE);
I get the following warning-messages in the output-window:
Warning: skipping non-radio button in group.

can anybody please explain me what happens? can't find anything on the net to that warning-message.
thanks in advance
silver

I don't want achieve immortality through my work - I want achieve it through not dying - Woody Allen

Re: Standard Radio Buttons

PJ Arends30-Jul-02 0:34

PJ Arends

30-Jul-02 0:34

All your radio buttons that you want grouped together have to be in the proper tab order, and the first control that comes after your group of radio buttons must have it's group flag set.

Re: Standard Radio Buttons

silverspoon30-Jul-02 1:49

silverspoon

30-Jul-02 1:49

Thanks a lot - you helped me very much! (and sorry for my trashing english)

I don't want achieve immortality through my work - I want achieve it through not dying - Woody Allen

Re: Standard Radio Buttons

PJ Arends30-Jul-02 5:52

PJ Arends

30-Jul-02 5:52

silverspoon wrote:
sorry for my trashing english

You didn't trash it. Your written english is excellent. I really admire all you non english speaking people who manage to use english to get their point across on these forums, because I know that if I had to use german ( Unsure | :~

or any other language) I would fail miserably.

Trouble with dialogs/views //HELP REALLY NEEDED

klm29-Jul-02 21:56

klm

29-Jul-02 21:56

Hello friends,

i have a CView (fullscreen) on the bottom (in x-axis) and i would like to show a modeless CDialog (fullscreen) on the CView. And then i would like to show an another modeless CDialog (quarder-screen) on the CDialog (fullscreen).

I would like to create (and delete) all dialogs in the CView, and the user should operate with all dialogs at the same time.

I have try that, and my problem is this:

I see the fullscreen dialog and the quarderscreen dialog (that is right), but i don't can operate with quarder-screen dialog (that is the problem). That dialog get no mouse-messages, and the buttons (on the quarderscreen dialog) don't move down when i try to click on it.

Here is a code-snipet (that i use to create one of the dialogs):

void CViewPMain::CreatePFkt3Zeile()
{
CRect DlgPFkt3Zeile, View;
if (!m_DlgPFkt3Zeile)
{
GetClientRect(View);

m_DlgPFkt3Zeile = new CDlgPFkt3Zeile;

if (!::IsWindow(m_DlgPFkt3Zeile->GetSafeHwnd()))
m_DlgPFkt3Zeile->Create(IDD_P_FKT_3ZEILE, this);

m_DlgPFkt3Zeile->GetWindowRect(DlgPFkt3Zeile);

ASSERT(m_DlgPFkt3Zeile->SetWindowPos(NULL
, View.Width() - DlgPFkt3Zeile.Width() //int x
, View.Height() - DlgPFkt3Zeile.Height() //int y
, DlgPFkt3Zeile.Width() //int cx
, DlgPFkt3Zeile.Height() //int cy
, SWP_HIDEWINDOW | SWP_NOACTIVATE | SWP_NOZORDER));

m_DlgPFkt3Zeile->ShowWindow(SW_SHOW);
}
else
{
delete m_DlgPFkt3Zeile;
m_DlgPFkt3Zeile = 0;
}
}

At the SetWindowPos-function i have tryed a lot of parameters for the first and the last parameter, but ever i don't can operate with the second dialog.

What make i wrong at the "create" of the dialogs? Or is "multiple dialogs" not aviable? Is there any other solution that i can do?

Thank you very much for your help!

PS: Sorry for my bad english.

Re: Trouble with dialogs/views //HELP REALLY NEEDED

perlmunger30-Jul-02 9:26

perlmunger

30-Jul-02 9:26

> PS: Sorry for my bad english.

It's very difficult to understand what you are asking here, but I'll try to answer your question.

First you'll have to answer some questions.

1. Are you using splitters? I don't understand what you mean by "i have a CView (fullscreen) on the bottom (in x-axis)". On the bottom of what?
2. When you say you want a Dialog in the view, do you mean you are using a form view or do you want a dialog whose parent is a CView?
3. Can you provide me with a better explanation of what this application looks like and does?

Let's start there. Just answer these questions and maybe I'll be able to understand better.

-Matt

------------------------------------------

The 3 great virtues of a programmer:
Laziness, Impatience, and Hubris.
--Larry Wall

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