C / C++ / MFC

http://www.codeproject.com/property/scrollproppage.asp[^]

18-Jul-06 0:34

renew?

Wim Engberts18-Jul-06 0:10

Wim Engberts

18-Jul-06 0:10

Hi
I am writing an application where the user can enter multiple occurences of an edit control or a combo-box. I keep adding new Edit controls whenever the user fills the previous one. On order to allocate these edit controls, I use the "new" operator. However, when I need to add a new CEdit control, I would need something like a "renew" operator (much like the realloc routine). Does anyone know how to do this? I could of course allocate a completely new set of Edit controls, and then copy the properties of the already used ones, but this seems like a rather clumsy way of doing things!

Thanks in advance.
William

Re: renew?

Maxwell Chen18-Jul-06 0:27

Maxwell Chen

18-Jul-06 0:27

1) If you are talking about C++ syntax, there is the method called "placement new" for you to new the objects at the specified address (in this case, the address of previous newed objects).

2) After new, you should "create" the edit controls to create the windows ...

Maxwell Chen

Re: renew?

David Crow18-Jul-06 2:58

David Crow

18-Jul-06 2:58

Why don't you use one of MFC's or STL's containers? They will grow/shrink without having to worry about memory management.

"Money talks. When my money starts to talk, I get a bill to shut it up." - Frank

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

Re: ,renew?

BadKarma18-Jul-06 1:25

BadKarma

18-Jul-06 1:25

didn't get enought sleep ??? Wink | ;)

codito ergo sum

Dialog Based application

Anu_Bala18-Jul-06 0:05

18-Jul-06 0:05

Hi,
Normally if we create a dialog with few buttons..In order to edit the code for the particular buuton.We double click the button,then there will be a popup dialog that automatically it will give a function name,if we need then we can change the name of the function and we code there.
But in my application,if i double click the button,it does not pop up anything.It simply stays as it is.
For writing code,I moved to ClassWizard,then i click the ID of the button..and i continue coding like this only.
Is there any settings to pop up that dialog when i double click the button or any other?

toxcct18-Jul-06 0:09

toxcct

18-Jul-06 0:09

right click on the control and select in the context menu "Add an event handler"...

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Anu_Bala18-Jul-06 0:19

18-Jul-06 0:19

In my context menu,there is no option as "Add on Event Handler"What can i do?Is there any option pls

Re: Dialog Based application [modified]

Hamid_RT18-Jul-06 0:22

Hamid_RT

18-Jul-06 0:22

Or add this code to your program

Hope I understood your question

BEGIN_MESSAGE_MAP(CssDlg, CDialog)
ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
END_MESSAGE_MAP()

void CYourclass::OnBnClickedButton1()
{
}
//in header file add
afx_msg void OnBnClickedButton1();

whitesky

Anu_Bala18-Jul-06 0:28

18-Jul-06 0:28

I can write this..But its not my question..When i click the button or any other control it will ask
--------------------------------
Add Member Function
Member Function Name:
OnOk
Message:
ObjectID:
---------------------
One dialog will appear with this details know.
But in my dialog it does not ask like this.My problem is this only?
But my ID's are in classWizard Object IDs.

-- modified at 6:29 Tuesday 18th July, 2006

ThatsAlok18-Jul-06 0:36

ThatsAlok

18-Jul-06 0:36

Anu_Bala wrote:
For writing code,I moved to ClassWizard,then i click the ID of the button..and i continue coding like this only.
Is there any settings to pop up that dialog when i double click the button or any other?

Some time clw file get corrupted so you have to delete that file and instruct the Studio to create new!

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

cheers,
Alok Gupta
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Anu_Bala18-Jul-06 0:43

18-Jul-06 0:43

I did as u said.I delete clw file and again it ask me to create classs wizard,now class wizard created.

But when i double click the button..It shows error as
Cannot add new member.

What is this?

_AnsHUMAN_ 18-Jul-06 0:50

_AnsHUMAN_

18-Jul-06 0:50

One cause would be The member is already be existing for that control

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

see me18-Jul-06 0:52

see me

18-Jul-06 0:52

hey,
1)just take class wizard and select the button ID
2)Select the message BN_CLICKED
3)then press buttons Add Function and Edit Code

Dream bigger... Do bigger...Expect smaller
aji

Checking for Software installed.

David Crow18-Jul-06 3:01

David Crow

18-Jul-06 3:01

With ClassWizard open, just click the Add Function button. It will suggest a function name for you that can be changed.

"Money talks. When my money starts to talk, I get a bill to shut it up." - Frank

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

stanlymt17-Jul-06 23:59

stanlymt

17-Jul-06 23:59

How will I know programmatically, software installed in the system? How to check whether the installed software is correct version? Is there any article related to this?

Thanks,
Stanly

Cedric Moonen18-Jul-06 0:03

Cedric Moonen

18-Jul-06 0:03

Which software ? Your software or another one ?
If it is your software, you can simply add a registry key in the windows registry (that's what a lot of application are doing). You can also store the version in the registry (and some other parameters like the install path).

Cédric Moonen
Software developer

Charting control

stanlymt18-Jul-06 0:09

stanlymt

18-Jul-06 0:09

I mean not my software. I want to check whether certain softwares(Visual Studio, SQL Server like that) are installed in the system or not?

Thanks,
Stanly

Ștefan-Mihai MOGA18-Jul-06 0:11

Ștefan-Mihai MOGA

18-Jul-06 0:11

Please check out Robert Edward Caldecott's article: How to get a list of installed applications[^] Good luck!