Re: txt file - C / C++ / MFC Discussion Boards

David Crow10-Mar-06 8:28

10-Mar-06 8:28

Can you but a breakpoint in the view's OnInitialUpdate() method and check the stack trace at that point? That will tell you what piece of code is calling OnInitialUpdate() and why it is happening for each view.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: OnInitialUpdate CSplitterWnd

23_44410-Mar-06 8:37

23_444

10-Mar-06 8:37

Hi David,

I did it once and my eyes kind of glazed over. So I did it again and it makes sense now.

InitialUpdateFrame was being called in the code that switched the views and this then makes each view call OnInitialUpdate.

Thanks

txt file

chaitanya2210-Mar-06 6:22

chaitanya22

10-Mar-06 6:22

How to write the output array to a text file?

Re: txt file

David Crow10-Mar-06 6:34

David Crow

10-Mar-06 6:34

chaitanya22 wrote:
How to write the output array...

What output array?

chaitanya22 wrote:
How to write...to a text file?

What text file?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: txt file

chaitanya2211-Mar-06 0:23

chaitanya22

11-Mar-06 0:23

its an int array[].

Re: txt file

David Crow13-Mar-06 2:42

David Crow

13-Mar-06 2:42

Here's one way:

FILE *pFile = fopen("file.txt", "w");
for (int x = 0; x < sizeof(array) / sizeof(array[0]); x++)
    fprintf("%d\n", array[x]);
fclose(pFile);

Others exist, too.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: txt file

Hamid_RT10-Mar-06 6:54

Hamid_RT

10-Mar-06 6:54

for write to file you can use CArchive But please refer to Reply David Crow

Re: txt file

gamitech10-Mar-06 7:01

gamitech

10-Mar-06 7:01

if you meant the values of and array in a txt file you can use the binary files to write the whole array in it but binary mode.

f=fopen(fname,"bw");
fwrite(array,1,sizeof(int)*nr_of_items,f);
fclose(f);

but if you want the values to be readable you must convert them first to chars and then write them.
char nr[10];
/*if array declared like this int array[100] or int *array*/
f=fopen(fname,"w+");
for (int i=0;i<nr_of_items;i++)
{
_itoa(*array,nr,10);
fwrite(nr,1,strlen(nr),f);
array++;
}
fclose(f);
the main="" thing="" is="" that="" you="" can="" write="" any="" kind="" of="" data="" variable="" in="" a="" binary="" file="" otherwise="" will="" have="" to="" make="" convension="" it="" text="" file.="" sometihng="" like="" this:
1="" line="" the="" nr="" entries
2="" length="" each="" entry="" if="" they="" are="" all="" equal
3="" -=""> nr_of_items line the entries
or something like this.
have fun

gabby

Re: txt file

ThatsAlok10-Mar-06 18:19

ThatsAlok

10-Mar-06 18:19

what about CFile;

CFile a("C:\\tmp.txt",CFile::modeWrite|CFile::modeCreate);
// Let m_arrString is you array and nSize its size
for(int i=0;i<nSize;i++)
a.Write(m_arrString[i],strlen(m_arrString));

a.Close();

Feature lock and unlock

raybert10-Mar-06 6:18

raybert

10-Mar-06 6:18

I am working on an application that has different features built in for parsing traffic logs for the television broadcast industry. Marketing wants to sell each feature seperately or as a full package. What would be the best way to turn on and off these features short of having to do seperate builds for each of them. Also if at a later date the customer wants to add features to his existing software without having to send them a new build.

raybert

Re: Feature lock and unlock

Rster02111110-Mar-06 6:29

Rster021111

10-Mar-06 6:29

There are many solutions to your problem. One way we do it at our company is run a little setup dialog first, so that the user tells what to start. Then that dialog calls the appropriate executables and passes in different command-line arguments for different features.

Re: Feature lock and unlock

Maximilien10-Mar-06 6:43

Maximilien

10-Mar-06 6:43

package your features in DLL, only ship the one that the client buy.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Create Child window in Visual C++ 6

Salad Juris10-Mar-06 6:00

Salad Juris

10-Mar-06 6:00

I am verynew to Visual C++ 6, but I can write powerfull database programes with it. the only problem I have is the child form or child dialog. When I create as child I can not use the mouse but I can navigate with the tab. if I make it popup and move the mdi form it does not move with the parent.

Can some one give me hints!!

Re: Create Child window in Visual C++ 6

David Crow10-Mar-06 6:36

David Crow

10-Mar-06 6:36

Salad Juris wrote:
I am verynew to Visual C++ 6, but I can write powerfull database programes with it.

Yes, but it would not be a wise endeavor given your "new" status. A better solution would be to use Microsoft SQL, Access, or MySQL as the DBE, and write the front end using VC++.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: Create Child window in Visual C++ 6

Salad Juris10-Mar-06 6:54

Salad Juris

10-Mar-06 6:54

Thanks for you reply, as front end I am using mysql with C API and it is working fine. my problem is in the displaying the form in mdi application.

Best REgards

Re: Create Child window in Visual C++ 6

David Crow10-Mar-06 7:46

David Crow

10-Mar-06 7:46

Salad Juris wrote:
my problem is in the displaying the form in mdi application.

Is it a modeless dialog?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: Create Child window in Visual C++ 6

Salad Juris10-Mar-06 8:00

Salad Juris

10-Mar-06 8:00

Thanks David

I tried modelles and model dialog and also FormVies. When I set the style to child I can not click the form or the dialog with the mouse, but I can use the tab and the keyboard. if I set it to other it does not move with the window and it goes out of the window.

My current possition now is I set in the more style tab as control. in this possition is better than others but when I move the main windows it remains current possition.

Best Regards

Re: Create Child window in Visual C++ 6

David Crow10-Mar-06 8:10

David Crow

10-Mar-06 8:10

Salad Juris wrote:
When I set the style to child...

Why are you using WS_CHILD as opposed to WS_POPUP?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: Create Child window in Visual C++ 6

Salad Juris10-Mar-06 8:15

Salad Juris

10-Mar-06 8:15

I went through several books, and read several posted messages, nont of them helped to get solution for this.

If you know better and simple way to do it, what I need for my project is creating mfc mdi project and attach either child dialg window or child formview. That is all what i need.

Can help on this?

Re: Create Child window in Visual C++ 6

David Crow10-Mar-06 8:23

David Crow

10-Mar-06 8:23

So if you have already created the MDI application and derived the view from CFormView, what is the problem?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: Create Child window in Visual C++ 6

Salad Juris10-Mar-06 8:32

Salad Juris

10-Mar-06 8:32

The form name is IDD_FORMVIEW

the class name is CMyFormView driven from CFormView, how do do I call the form from the menu?

Thanks

Re: Create Child window in Visual C++ 6

David Crow10-Mar-06 8:56

David Crow

10-Mar-06 8:56

Salad Juris wrote:
how do do I call the form from the menu?

What do you mean by this? Classes are not called, they are created or instantiated. Functions and methods are called.

What is it that you are wanting to do?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: Create Child window in Visual C++ 6

Salad Juris10-Mar-06 9:04

Salad Juris

10-Mar-06 9:04

Sorry, I mean creating.

First of all I added my mdi project a child formview named IDD_FORMVIEW attached to class name as CMyFormView driven from CFormView.

Now I want to display it. how can I display this form?

Re: Create Child window in Visual C++ 6

David Crow10-Mar-06 9:35

David Crow

10-Mar-06 9:35

Salad Juris wrote:
Now I want to display it. how can I display this form?

It's displayed automaticaly when the application is started, unless you have specifically added code to not create the child frames. Have you added any controls to the IDD_FORMVIEW template?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: Create Child window in Visual C++ 6

Salad Juris10-Mar-06 9:41

Salad Juris

10-Mar-06 9:41

Thanks for your helping,

First of all when I set my first form, it starts automatcly that I included some basic info, I donthave problem with that, my problem is when I add additional forms to communicatate my databases.

IDD_FORMVIEW is the default name, for my test project not the template.

Best regards

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