INI file question - C / C++ / MFC Discussion Boards

Re: From txt file to array...c++ .net framework

Tom Larsen8-Mar-04 9:06

8-Mar-04 9:06

Wouldn't sscanf or one of the variants work here? That is you are really using Visual C++. If you are using Managed C++ I believe you can use a ReadLine and then use String.Split to crudely tokenize.

Re: From txt file to array...c++ .net framework

David Crow8-Mar-04 9:16

David Crow

8-Mar-04 9:16

String strLine;
while ((strLine = inData->ReadLine())) != null)
{
    // now parse strLine
}

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: From txt file to array...c++ .net framework

Christian Graus8-Mar-04 10:44

Christian Graus

8-Mar-04 10:44

If you're allowed to use the standard library, an ifstream would actually allow you to read them as ints, no problems at all.

Christian

I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

Re: From txt file to array...c++ .net framework

kfresh8-Mar-04 10:50

kfresh

8-Mar-04 10:50

nah... have to use it at this .net gayness haha... so i guess is use streamreader??

k

Re: From txt file to array...c++ .net framework

Christian Graus8-Mar-04 10:55

Christian Graus

8-Mar-04 10:55

I suppose so. What idiot is making you use C++.NET ? If you want to use .NET, use C#.

Christian

I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

Re: From txt file to array...c++ .net framework

kfresh8-Mar-04 10:57

kfresh

8-Mar-04 10:57

it's actually a school assignment... and the gayness of my school... lets do C++ .NET for the first C++ class... but the Object Oriented C++ next semester will be in standard code.... it makes no sense...

k

Re: From txt file to array...c++ .net framework

Christian Graus8-Mar-04 11:05

Christian Graus

8-Mar-04 11:05

They probably think that the .NET framework will make the jump into C++ less painful. I still think C# would have given the same effect with more long term benefit.

Christian

I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

INI file question

Tom Wright8-Mar-04 8:57

Tom Wright

8-Mar-04 8:57

Do I have to write out the registry key in order to write out an ini file? In my code I'm using the WritePrivateProfileString API passing the section name, key and the path with file name. The file gets created but nothing is written.

In the example in the MSDN lib they show calls made to registry settings. But I just want to write out the file and not making any reg settings.

Here's a snippet of my code:

<br />
	for(int i = 0; i < NumItems; i++)<br />
	{<br />
		if (ListView_GetCheckState(m_cColumnList.GetSafeHwnd(), i))<br />
		{	<br />
			//write out the columns to the ini file<br />
			//AfxMessageBox(m_cColumnList.GetItemText(i, 0));<br />
			WritePrivateProfileString ("Columns", m_cColumnList.GetItemText (i,0), NULL,CurrentDir); <br />
		}<br />
	}<br />

All I want to do is write out the SQL column names to an ini file. So each key will be a column name with no value.

Any help would be appreciated.

Thanks

Tom Wright
tawright915@yahoo.com

Re: INI file question

David Crow8-Mar-04 9:00

David Crow

8-Mar-04 9:00

If the third parameter to WritePrivateProfileString() is NULL, the specified key (the second parameter) will be deleted.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: INI file question

Tom Wright8-Mar-04 9:12

Tom Wright

8-Mar-04 9:12

Is there a way to write out a key without a value?

Thanks

Tom Wright
tawright915@yahoo.com

Re: INI file question

David Crow8-Mar-04 9:20

David Crow

8-Mar-04 9:20

Sure, just ensure that the third parameter is non-NULL.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: INI file question

Tom Wright8-Mar-04 9:22

Tom Wright

8-Mar-04 9:22

Haha....duh. How come you always seem to make me see the light and it's right in front of me?

Thanks again

Tom Wright
tawright915@yahoo.com

Re: INI file question

Tom Wright8-Mar-04 10:16

Tom Wright

8-Mar-04 10:16

Is it possible to put keys in there with out the '=' sign after them. Would I have to open this file like a normal file?

Thanks

Tom Wright
tawright915@yahoo.com

Re: INI file question

David Crow9-Mar-04 1:58

David Crow

9-Mar-04 1:58

Tom Wright wrote:
Is it possible to put keys in there with out the '=' sign after them.

Not and be able to use the ini-related functions.

Tom Wright wrote:
Would I have to open this file like a normal file?

What constitutes normal is how the file is used, not what it contains. You can store the data in a .ini file, but you'd then need to use fscanf(), CFile::Read(), or CStdioFile::ReadString() to operate on it. To avoid future confusion, you might want to make it a .cfg file.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: INI file question

Navin8-Mar-04 10:57

Navin

8-Mar-04 10:57

In all honesty, if I were you, run, don't walk, from WritePrivateProfileString and its ilk. Just open the file like a regular text file. I'm sure there are libraries to handle INI files here on CodeProject, if not, writing your own isn't that big of a deal and will pay off in the long run.

Why don't I like WritePrivateProfileString?
Green Alien | [Alien]

It can fail on 95/98/Me if your file is too big (> 64K)
Green Alien | [Alien]

As you have noticed, it is not very flexible.
Green Alien | [Alien]

I believe the OS may use some funky memory mapping to write the file, so attempts at reading it as a nomral file after calling WritePrivateProfileString may be unpredictable.

Remember, even if you win the rat race, you're still a rat.

Re: INI file question

David Crow9-Mar-04 2:13

David Crow

9-Mar-04 2:13

Navin wrote:
I'm sure there are libraries to handle INI files here on CodeProject, if not, writing your own isn't that big of a deal and will pay off in the long run.

It would be silly to reinvent the wheel. It makes no sense to use something other than WritePrivateProfileString() when writing to a .ini file. If that function does not do what you want, perhaps what you want requires a different tool (I'm thinking of an Abraham Maslow quote here).

Navin wrote:
It can fail on 95/98/Me if your file is too big (> 64K)

If more than 64KB needs to go in such a file, it's time to rethink the design.

Navin wrote:
As you have noticed, it is not very flexible.

Only if you don't know how to use it, or use it for something for which it was not intended.

Navin wrote:
I believe the OS may use some funky memory mapping to write the file, so attempts at reading it as a nomral file after calling WritePrivateProfileString may be unpredictable.

Why use a .ini file if you are not going to use ini-related functions on it?

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Transferring a BMP file on network

prasadddeshpande8-Mar-04 8:09

prasadddeshpande

8-Mar-04 8:09

I am not getting how to transfer a .BMP file from one machine to another using sockets. Plz help me

Re: Transferring a BMP file on network

Atif Mushtaq8-Mar-04 18:56

Atif Mushtaq

8-Mar-04 18:56

Well can u clearly tell what problems u r having , is there some problem regarding socket programming or something else.

Unmanaged in a .NET world

Re: Transferring a BMP file on network

prasadddeshpande10-Mar-04 7:45

prasadddeshpande

10-Mar-04 7:45

In my code On one machine there is a .bmp file
I created one object of CFile & opened that file in binary mode
then one byte pointer is pointing to start of file, for .txt file this pointer holds the pointer to the string, but in my case it is holding header
so i can not send that data on network
If CArchive can be used plz guide me.

Need help with this..IE snapshot

AWebDude8-Mar-04 8:07

AWebDude

8-Mar-04 8:07

Just wondering if its possible to create a web page snapshot. Check this example:
http://www.pcworlddownload.com/internet/browser-utilities/IESnap.htm

This tool adds a button to IE toolbar and when clicked it saves the web page as png file.

I'm working on a similar project but can't solve this part. I need to create a web page snapshot and email/ftp it to the server.

Any help is appreciated.

Thanks.

Re: Need help with this..IE snapshot

Anonymous8-Mar-04 9:40

Anonymous

8-Mar-04 9:40

Try using WM_PRINT or WM_PRINTCLIENT, most likely IE supports those messages

Edward

Re: Need help with this..IE snapshot

AWebDude8-Mar-04 10:01

AWebDude

8-Mar-04 10:01

THanks for the reply.
Actually I'm not that good in VC++. Could you please send some examples?

Thanks.

Re: Need help with this..IE snapshot

Anonymous9-Mar-04 9:37

Anonymous

9-Mar-04 9:37

Sorry, don't have any examples.
Here is an idea:
HWND hSnapShotWnd = ??; // This is the window for the snapshot (IE)
//create memory dc:
HDC hWinDC = GetDC(NULL);
hDC hMemDC = CreateCompatibleDC(hWinDC);
RECT rcClient;
GetClientRect(hSnapShotWnd , rcClient);
//create bitmap for the snapshot of the client area of the window
HBITMAP hBitmap = CreateCompatibleBitmap(hWinDC, rcClient.right - rcClient.left, rcClient.bottom - rcClient.top);
HBITMAP hOld = SelectObject(hMemDC, hBitmap);
SendMessage(hSnapShotWnd, WM_PRINTCLIENT, (WAPRAM)hMemDC, PRF_ERASEBKGND|PRF_CLIENT|PRF_CHILDREN);
//after that hBitmap contains the picture of the client area of the hSnapShotWnd (if window supports WM_PRINTCLIENT).

SelectObject(hMemDC, hOld);
DeleteDC(hWinDC);
DeleteDC(hMemDC);

HTH,
Edward

MFC Dialog question

Anonymous8-Mar-04 8:05

Anonymous

8-Mar-04 8:05

Hello everyone, I just wanted to know how to create a dailog program that would call another dialog. I have looked at the articles supplied at the site, which are very good, but have not seen a simple example. Most of them are just to complex for me to understand since i have just started programming in mfc. I was wondering if anyone know a simple skelaton example where a dialog based mfc program calls another dailog.
My main problem is not creating the second dialog or the main dialog but its how to declare it in the main dialog, and just the technical stuff.

Thank you.

Re: MFC Dialog question

David Crow8-Mar-04 8:51

David Crow

8-Mar-04 8:51

You'll need two dialoog templates in the project's .rc file. You'll also need two CDialog-derived classes (e.g., DialogA, DialogB), one for each template. Use ClassWizard to create these. In the OnInitDialog() method of DialogA, create an instance of DialogB and call its DoModal() method. Something like:

BOOL DialogA::OnInitDialog()
{
    DialogB B;
    B.DoModal();
    
    return TRUE;
}

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

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