C / C++ / MFC

7-Mar-05 10:47

Is GetUserName() what you are after?

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

File Management

densitet6-Mar-05 22:18

densitet

6-Mar-05 22:18

Hi, I am new in c++ and i have done a program where i can show the files and directories of C:, for example and i have used FindFirstFile, FindNextFile and FindClose but now i don't want only show the files, i want keep these files in a package and send to other computer, but i only want to know how can i keep these files, no the communication.

Thank you very much. TACK

/Densitet

David Crow7-Mar-05 10:49

7-Mar-05 10:49

Add the filenames to a data structure of some sort, like a list or an array. Both of these are in the STL as well as MFC.

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

densitet7-Mar-05 23:29

densitet

7-Mar-05 23:29

This program show the files in Dos, but if i want that it shows the files in a List in a graphc interface, how can i do it, because i have create my interface but i can't wirte the files in the list.

Tack.

David Crow8-Mar-05 2:16

8-Mar-05 2:16

How the filenames are gathered is independent of whether you use a console or a GUI application. In either case, the FindFirstFile()/FindFirstFile() pair is used, or the CFileFind class if you are using MFC.

What type of control are you adding the filenames to (e.g., edit control, listbox, combobox, list control)? Each has its own method of "addition."

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

densitet8-Mar-05 4:23

densitet

8-Mar-05 4:23

Ok, i have to use CFileFind because i'm using MFC. I want to add the filenames in a listbox, you know what is the method?

Thanks.

David Crow8-Mar-05 4:45

compare current date with listed date

8-Mar-05 4:45

See here.

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

shaans6-Mar-05 21:32

shaans

6-Mar-05 21:32

hai anybdy can help me.i have some keys that generated and stored in to text file. That key contain name and two dates like start date and end date.so now i want to compare the key with the given or enterd name is present in that txt file and if present compare the currentdate with dates given in the key.and give boolen like the current date exceed the end date or not? and start date less than the current date. can any body help me?
regards
shaanu

Re: compare current date with listed date

ThatsAlok7-Mar-05 2:15

ThatsAlok

7-Mar-05 2:15

What is format of your date i.e. YYYY/MM/DD or something else.....

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Re: compare current date with listed date

shaans7-Mar-05 16:39

shaans

7-Mar-05 16:39

my date format is DD/MM/yyyy.can u help me?

shan

Re: compare current date with listed date

ThatsAlok7-Mar-05 18:27

ThatsAlok

7-Mar-05 18:27

here is small code that compare current date with your stored date.
My date Format is YYYY-MM-DD, i Believe,you are smart Enough to modify the code according to your need.

BOOL <You Class>::FnCheckForValidDates(CString szEndDate)
{

	<font color=#008000>//Get Current date</font>
	CTime TodayDate=CTime::GetCurrentTime();

	int nYear,nMonth,nDay;
	<font color=#008000>//date format YYYY-MM-DD</font>

	<font color=#008000>///Extract Year</font>
	nYear=_ttoi(szEndDate.Left(szEndDate.Find('-')));
   
	<font color=#008000>///remove the Year from String</font>
    	szEndDate.Replace(szEndDate.Left(szEndDate.Find('-')),"");
	<font color=#008000>///Replace Extra '-'</font>
		szEndDate.TrimLeft('-');


 <font color=#008000>///Extract Month </font>
		nMonth=_ttoi(szEndDate.Left(szEndDate.Find('-')));
   
	<font color=#008000>///remove the Year from String</font>
    	szEndDate.Replace(szEndDate.Left(szEndDate.Find('-')),"");
	<font color=#008000>///Replace Extra '-'</font>
		szEndDate.TrimLeft('-');

	<font color=#008000>///Extract Day</font>
		nDay=_ttoi(szEndDate);


	<font color=#008000>///comparison Routine</font>
	<font color=#008000>///first Check year</font>

		if(TodayDate.GetYear()>nYear)
			return FALSE;

		if(TodayDate.GetMonth()>nMonth)
			return FALSE;

		if(TodayDate.GetDay()>nDay)
			return FALSE;


#ifdef MYDEBUG
	AfxMessageBox("Returning True");
#endif


	

	return TRUE;
}

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Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

two digits in edit control

Musen806-Mar-05 20:51

Musen80

6-Mar-05 20:51

Hi!

How is it possible to limit my edit control (MFC) to only accept two digits. Now it is possible to type in how many as you want. To get it to accept only numbers were no problems, is there any properties that I can set to get it to only accept two digits as well?

Re: two digits in edit control

Cedric Moonen6-Mar-05 21:30

Cedric Moonen

6-Mar-05 21:30

No, you will need to subclass your edit control.
It is not really complicated: with class wizard create a new MFC class and make it inherits from CEdit. Then override the OnChar() member function (response to the WM_CHAR event). In this function, if you don't want to add a new char in the edit control, don't call OnChar from the CEdit class. If the character can be displayed, then call CEdit::OnChar().

Hope this help

Re: two digits in edit control

Steen Krogsgaard6-Mar-05 21:39

Steen Krogsgaard

6-Mar-05 21:39

CEdit::SetLimitText

Cheers
Steen.

"To claim that computer games influence children is ridiculous. If Pacman had influenced children born in the 80'ies we would see a lot of youngsters running around in dark rooms eating pills while listening to monotonous music"

Automatic scrolling in ListBox

Majid Shahabfar6-Mar-05 20:40

Majid Shahabfar

6-Mar-05 20:40

Hi there,
I fill a ListBox (AddString(str)) from a loop.
When ListBox become full the vertical scrollbar will be appeared.
But I want to do somthing to move the scroll to down in order to the last item become appeared always.
How can I do this?
This functionality is very simple when we use CListControl, because there is a method called Scroll(...) in CListControl class for this reason.
Thanks.

V.6-Mar-05 22:26

6-Mar-05 22:26

you have to do it manually:

something like:

void DlgFlexListSelectValue::SetHorizontalScrollBar(){<br />
	//Next is to set the horizontal scroll bar<br />
	//Find the longest string in the list box.<br />
	CString str;<br />
	CSize sz;<br />
	int dx = 0;<br />
	TEXTMETRIC tm;<br />
	CDC* pDC = m_valueList.GetDC();<br />
	CFont* pFont = m_valueList.GetFont();<br />
<br />
	//Select the listbox font, save the old font<br />
	CFont* pOldFont = pDC->SelectObject(pFont);<br />
	//Get the text metrics for avg char width<br />
	pDC->GetTextMetrics(&tm); <br />
<br />
	for(int i = 0; i < m_valueList.GetCount(); i++){<br />
		m_valueList.GetText(i, str);<br />
		sz = pDC->GetTextExtent(str);<br />
<br />
		//Add the avg width to prevent clipping<br />
		sz.cx += tm.tmAveCharWidth;<br />
<br />
		if(sz.cx > dx){<br />
			dx = sz.cx;<br />
		}											//end if<br />
	}												//end for<br />
<br />
	//Select the old font back into the DC<br />
	pDC->SelectObject(pOldFont);<br />
	m_valueList.ReleaseDC(pDC);<br />
	//Set the horizontal extent so every character of all strings <br />
	//can be scrolled to.<br />
	m_valueList.SetHorizontalExtent(dx);<br />
}													//end function SetHorizontalScrollBar

call the function when you have loaded the listbox.
it's on MSDN somewhere.

good luck.

No hurries, no worries.

Majid Shahabfar7-Mar-05 0:56

Majid Shahabfar

7-Mar-05 0:56

Thank you.
but I don't have problem with horizontal scrolling

V.7-Mar-05 1:18

7-Mar-05 1:18

idd, I misread, my apologies D'Oh! | :doh:

.

good luck though.

PS: there should be a function like SetScrollPos or something.

No hurries, no worries.

memory management utilization probz!!!!!

Jetli Jerry6-Mar-05 23:45

Jetli Jerry

6-Mar-05 23:45

m_list.SetCurSel( m_list.AddString(s) );

will work for u.

It will autimatically scroll to last item and will make is selected.

Jetli
Constant Thing In World Is Change.

namaskaaram6-Mar-05 19:13

namaskaaram

6-Mar-05 19:13

i seem to have probz with my dialog based application.....my main dialog callz a modal dialog (which basically loadz some imagez into the screen) and then when i close thiz modal dialog....i see that the memory is not freed!!!!!(i came to view that from taskmanager)....each time i call this modal dialog,it increases by a definitive amount(520kb).....i have freed the dc memery and also even the pointer dynamically created for the modal dialog.....HELP....herez the code.....

THIZ IZ HOW I HAVE CALLED THE MODAL DIALOG FROM MY MAIN DIALOG!!!!!

CMyPresetViewer *PresetViewerDlg = new CMyPresetViewer;//creating a dynamic pointer to the presetdialog

if(PresetViewerDlg->DoModal()==IDOK)
{
//DO SOMETHING.....I HAVE DONE NOTHING THOUGH!!!!!
}

delete PresetViewerDlg;

THIZ IZ THE CODE THAT IZ WRITTEN IN THE MODAL DIALOG
void CMyPresetViewer::OnStatic1() //close button(x)//WHEN THE APPLICATION CLOSES
{

	// TODO: Add your control notification handler code here
	ReleaseDC(m_dcPresetViewerDialog);//m_dcPresetViewerDialog IZ A CDC POINTER DYNAMICALLY CREATED IN THE CONSTRUCTOR
	delete m_dcPresetViewerDialog;
	AfxMessageBox("done");
	CDialog::OnOK();	
}

BOOL CMyPresetViewer::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_DragOn=FALSE;

	CClientDC dc(this);
	m_dcPresetViewerDialog->CreateCompatibleDC( &dc );


	m_hBmpNew = (HBITMAP) LoadImage(
    AfxGetInstanceHandle(),   // handle to instance
    MAKEINTRESOURCE(IDB_BITMAP59),  // name or identifier of the image .say"C:\\NewFolder\\1.bmp"
    IMAGE_BITMAP,        // image types
    0,     // desired width
    0,     // desired height
    LR_CREATEDIBSECTION); 

    if( m_hBmpNew == NULL )
    {
        AfxMessageBox("Load Image Failed");
    }
    
    // put the HBITMAP info into the CBitmap (but not the bitmap itself)
    else {
        m_st0.GetClientRect( &rectStaticClient );
        rectStaticClient.NormalizeRect();
        m_size.cx=rectStaticClient.Size().cx;
        m_size.cy=rectStaticClient.Size().cy;
        m_size.cx = rectStaticClient.Width();    // zero based
        m_size.cy = rectStaticClient.Height();    // zero based

        // Convert to screen coordinates using static as base,
        // then to DIALOG (instead of static) client coords 
        // using dialog as base
        m_st0.ClientToScreen( &rectStaticClient );
        ScreenToClient( &rectStaticClient);
        
        GetObject( m_hBmpNew , sizeof(BITMAP), &m_bmInfo );
        VERIFY(m_hBmpOld = (HBITMAP)SelectObject(*m_dcPresetViewerDialog, m_hBmpNew )  );

        offsetx= rectStaticClient.left;
        offsety= rectStaticClient.top;
//		InvalidateRect(&rectStaticClient);
		}	




	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CMyPresetViewer::OnCancel() 
{
	// TODO: Add extra cleanup here
	
	CDialog::OnCancel();
}

void CMyPresetViewer::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here

	dc.BitBlt(offsetx,offsety,m_size.cx,m_size.cy,m_dcPresetViewerDialog, 0, 0,SRCCOPY);	

	// Do not call CDialog::OnPaint() for painting messages
}

}

CAN ANYONE TELL ME WHERE I HAVE GONE WRONG!!!!!
I SEEM TO HAVE FREED AL THE RESOURCES..... Confused | :confused:

HEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEELP!!!!!

thankz in advance.....

"faith, hope, love remain, these three.....; but the greatest of these is love" -1 Corinthians 13:13

Bob Stanneveld6-Mar-05 20:24

Bob Stanneveld

6-Mar-05 20:24

Let me guess, the bitmat is about 520 KB in size? I suggest the next time u use an API, you look at it in MSDN first, because that's what caused your memory leak! Take a look here[^] and see what you have to do...

I also got the blogging virus..[^]

namaskaaram6-Mar-05 21:45

namaskaaram

6-Mar-05 21:45

READ IT A MILLON TIMEZ!!!!!if ur suggesring LR_SHARED!!!thatz not it.....and by the way.....itz not a cut paste code.....and moreover i didnt put it to be graded!!!!!

"faith, hope, love remain, these three.....; but the greatest of these is love" -1 Corinthians 13:13

Bob Stanneveld7-Mar-05 20:35

Bob Stanneveld

7-Mar-05 20:35

I don't see you releasing the old bitmap!

Take a closer look at: VERIFY(m_hBmpOld = (HBITMAP)SelectObject(*m_dcPresetViewerDialog, m_hBmpNew ) ); and wonder where you release the handle of the old bitmap.

I also got the blogging virus..[^]

namaskaaram8-Mar-05 16:32

namaskaaram

8-Mar-05 16:32

u know what,,,,,i even did that!!!!!(i beleive u r talking abt DeleteObject() ) ....thatz not just it!!!!!
thanx anyway!!!!!

"faith, hope, love remain, these three.....; but the greatest of these is love" -1 Corinthians 13:13

David Crow7-Mar-05 10:52