C / C++ / MFC Discussion Boards

pawelzielin12-Sep-07 0:49

12-Sep-07 0:49

creating two dimensional dynamic array of chars

char **array;

array = new char*[50];

for (int i =0; i < 50; i++)
array[i] = new char[10];

// the new size is [10][50]

Re: dynamic two dimentional array

krmed12-Sep-07 1:53

krmed

12-Sep-07 1:53

Actually, the new size would be [50][10] with your allocation.

Karl - WK5M
PP-ASEL-IA (N43CS)
PGP Key: 0xDB02E193
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Re: dynamic two dimentional array

pawelzielin12-Sep-07 20:37

pawelzielin

12-Sep-07 20:37

My mistake Wink | ;)

Re: dynamic two dimentional array

Waldermort12-Sep-07 4:09

Waldermort

12-Sep-07 4:09

std::vector< std::vector< char > > MyDynamic2DArray;

Waldermort

Re: dynamic two dimentional array

Mark Salsbery12-Sep-07 6:53

Mark Salsbery

12-Sep-07 6:53

No need for an array of arrays...

int (*My500x500Array)[500] = new int[500][500];
for (int ii = 0; ii < 500; ++ii)
{
    for (int jj = 0; jj < 500; ++jj)
    {
        My500x500Array[ii][jj] = jj;
    }
}
delete[] My500x500Array;

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: dynamic two dimentional array

carrivick12-Sep-07 8:37

carrivick

12-Sep-07 8:37

Check the thread subject, In what way is this array dynamic ?

Re: dynamic two dimentional array

David Crow12-Sep-07 8:41

David Crow

12-Sep-07 8:41

carrivick wrote:
In what way is this array dynamic ?

The fact that the new and delete operators are present.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: dynamic two dimentional array

Mark Salsbery12-Sep-07 8:42

Mark Salsbery

12-Sep-07 8:42

It's created on the heap?

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

How to change size of a win32 toolbar after TB_DELETEBUTTON

ioctl5112-Sep-07 0:13

ioctl51

12-Sep-07 0:13

Hello, i have a toolbar with small icon buttons in. When i delete a button by sending a TB_DELETEBUTTON to it, it dosn't resize automatically. And since the buttons have a fixed size, there is an empty spot in the toobar, where i want it to automatically resize to fit the number of buttons.

How do i do this? Iv tried sending TB_AUTOSIZE to the toolbar, but nothing happens. Must i manually use TB_GETMETRICS and TB_SETMETRICS to calculate the new size of the toolbar?

Thanks

Printing Problem

pri_skit11-Sep-07 23:59

pri_skit

11-Sep-07 23:59

I am doing printing on two types of printer e.g EPSON StYLUS C82 & HP Deskjet 5700.When printing using HP,i have displayed two Text one after other with some coordinates passed to it.Text are displayed one after other with some GAP.But when i print using EPSON ,Text are displayed one after other with Larger GAP.How this problem could be soved.Example code of this is:

pDC->ExtTextOut(XCoOrdinate,YCoOrdinate+LINEGAP_Y,ETO_OPAQUE ,NULL, "Date",NULL);
XCoOrdinate+=ParamHeadingRectWidthPrint;
pDC->ExtTextOut(XCoOrdinate,YCoOrdinate,ETO_OPAQUE ,NULL, "Time",NULL);

Thanks & regards,

priyank

Re: Printing Problem

Nelek12-Sep-07 0:29

Nelek

12-Sep-07 0:29

You will need to use NON DEVICE DEPENDANT UNITS. I had some problems like that printing with the same mark but different models.

I coded it in that way:

void CMyView::OnPrint(CDC* pDC, CPrintInfo* pInfo) 
{	
	CMyDoc* pDoc = GetDocument ();
	ASSERT_VALID (pDoc);
	// Setting printing parameters
	pDC->SetMapMode (MM_LOMETRIC);
	
	double dLeftOffset=200-(pDC->GetDeviceCaps(PHYSICALOFFSETX)*254.0)/pDC->GetDeviceCaps(LOGPIXELSX);
	double dTopOffset=200-(pDC->GetDeviceCaps (PHYSICALOFFSETY)*254.0)/pDC->GetDeviceCaps (LOGPIXELSY);
	double dRightMargin=1950-(pDC->GetDeviceCaps (PHYSICALOFFSETX)*254.0)/pDC->GetDeviceCaps(LOGPIXELSX);
	double dBottomMargin=2770-(pDC->GetDeviceCaps (PHYSICALOFFSETY)*254.0)/pDC->GetDeviceCaps(LOGPIXELSY);

	pInfo->m_rectDraw.left += (int) dLeftOffset;
	pInfo->m_rectDraw.top += (int) dTopOffset;
	pInfo->m_rectDraw.right = (int) dRightMargin;
	pInfo->m_rectDraw.bottom = (int) dBottomMargin;

//...

then to print images... I used the ::StretchDIBits (...) function, and to print text the pDC->TextOut (...) function. But using coordinates like

pInfo->m_rectDraw.left + XXX;
pInfo->m_rectDraw.top - XXX;

and so on.

Hope it helps

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Re: Printing Problem

pri_skit12-Sep-07 1:31

pri_skit

12-Sep-07 1:31

Thank u for u help.I am facing with another problem in same thing.While printing font changes for different printer.I have created font using:

int nHorz = pDC->GetDeviceCaps(LOGPIXELSX);
CFont fnTimes;
int FontPrinterWeldData = (EUROPEANWELDDATAFONT*nHorz)/PIXPERINCH;//..where //PIXPERINCH=150,
//EUROPEANWELDDATAFONT=18

fnTimes.CreateFont(FontPrinterWeldData , 0, 0, 0, FW_NORMAL ,FALSE, FALSE, FALSE, ANSI_CHARSET, OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY, FF_DONTCARE, _T("Courier New"));

I can't understand why font change for printer.

Thanks & regards,

priyank

Re: Printing Problem

Nelek12-Sep-07 1:42

Nelek

12-Sep-07 1:42

I guess it is because not all printers have the same PixelsPerInch, it depends on printers, properties of actuall printing job (optimal, low quality...) and other factors

I use the font as follows:

CFont fontLabels;
fontLabels.CreatePointFont (80, "MS Sans Serif", pDC);
CFont fontInfo;
fontInfo.CreatePointFont (140, "MS Sans Serif", pDC);

From MSDN help:
BOOL CreatePointFont( int nPointSize, LPCTSTR lpszFaceName, CDC* pDC = NULL );

This function provides a simple way to create a font of a specified typeface and point size. It automatically converts the height in nPointSize to logical units using the CDC object pointed to by pDC.

When you finish with the CFont object created by the CreatePointFont function, first select the font out of the device context, then delete the CFont object.

.........

It works good for me. I have tested it with 5 different printers (in high and low quality) and a plotter without problems. I don't want to say it will never have problems, but i think is one of the best options.

The fact is to use a standard font that ALWAYS goes with windows like arial, ms sans sherif, times new roman and so on... using CreatePointFont

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Re: Printing Problem [modified]

bob1697212-Sep-07 1:54

bob16972

12-Sep-07 1:54

Have you tried a more WYSIWYG approach? Try using the MM_ANISOTROPIC mapping mode as it makes it easier to match your view and print output using the same OnDraw code.

Here's a quick sample to plop into a new CScrollView doc/view app to see if the results are consistent on your printers. Keep in mind that it's more important to preserve aspect ratio, keeping everything proportional, and ensuring no drawing code falls outside the printable area. You will find small variances in the metric accuracy on all printers so focus more on the relative placement and you'll suffer less print anxiety.

//CDocument members...

// Header file .h
protected:
CSize m_DocSize;

// Implementation file .cpp
CSize CYourDoc::GetDocSize() const
{
return m_DocSize;
}

CYourDoc::CYourDoc()
{
// TODO: add one-time construction code here
m_DocSize=CSize(2000,2800);
}

//CScrollView members...

// Header file .h
private:
int m_nPage;

// Implementation file .cpp
CYourView::CYourView()
{
// TODO: add construction code here
SetScrollSizes(MM_TEXT,CSize(0,0)); // Set arbitrary values

m_nPage=1;
}

/***************************************
NOTE: The pInfo parameter is uncommented
****************************************/
void CYourView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* pInfo)
{
// TODO: add extra initialization before printing
pInfo->SetMaxPage(3);
}

void CYourView::OnPrint(CDC* pDC, CPrintInfo* pInfo)
{
// TODO: Add your specialized code here and/or call the base class
m_nPage=pInfo->m_nCurPage;

CScrollView::OnPrint(pDC, pInfo);
}

void CYourView::OnPrepareDC(CDC* pDC, CPrintInfo* pInfo)
{
CScrollView::OnPrepareDC(pDC);

// TODO: Add your specialized code here and/or call the base class

// Set up the DC for the current scale factor
int nExtentX;
int nExtentY;
CSize sizeDoc;
CRect rectClient;

pDC->SetMapMode(MM_ISOTROPIC);

// Get pertinent rectangle data
GetClientRect(&rectClient);
sizeDoc=GetDocument()->GetDocSize();

sizeDoc.cy=(-sizeDoc.cy); // Y goes down as it increments
pDC->SetWindowExt(sizeDoc); // Window extent is size of document

// Calculate viewport extent
nExtentX=rectClient.Width();
nExtentY=(int)((nExtentX*sizeDoc.cy)/(sizeDoc.cx));

// What kind of device context do we have?
if (pDC->IsPrinting()==TRUE) {
pDC->SetViewportExt(pDC->GetDeviceCaps(HORZRES),-pDC->GetDeviceCaps(VERTRES));
} else {
// Context is for screen
pDC->SetViewportExt(nExtentX,nExtentY);
}
}

void CYourView::ResetScrollBars()
{
CSize sizeDoc;
CClientDC dc(this);

this->OnPrepareDC(&dc); // Update the device context

sizeDoc=GetDocument()->GetDocSize();
dc.LPtoDP(&sizeDoc); // Logical to device

this->SetScrollSizes(MM_TEXT,sizeDoc); // Update scrollbars
}

void CYourView::OnSize(UINT nType, int cx, int cy)
{
CScrollView::OnSize(nType, cx, cy);

// TODO: Add your message handler code here
ResetScrollBars();
}

void CYourView::OnDraw(CDC* pDC)
{
CTestPrintDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// TODO: add draw code for native data here

CSize sizeDoc=pDoc->GetDocSize();
CRect rectOutline(0,0,sizeDoc.cx,sizeDoc.cy);
rectOutline.DeflateRect(10,10); // Ensure we can see it

LOGFONT logFont={0};
memcpy(logFont.lfFaceName,"Arial",6);
logFont.lfHeight=300;

CFont font;
font.CreateFontIndirect(&logFont);

CFont* pOldFont=pDC->SelectObject(&font);
CBrush* pOldBrush=(CBrush*)pDC->SelectStockObject(NULL_BRUSH);
CString sMessage;
sMessage.Format("You can add code to center the printout later\nPage %d",m_nPage);
pDC->DrawText(sMessage,&rectOutline,DT_CENTER|DT_WORDBREAK);

pDC->Rectangle(&rectOutline);

pDC->SelectObject(pOldFont);
pDC->SelectObject(pOldBrush);
}

problem in url

yadahav11-Sep-07 23:30

yadahav

11-Sep-07 23:30

Hi
How to display url in dialog box.

Re: problem in url

nitin311-Sep-07 23:38

nitin3

11-Sep-07 23:38

Do u want to display a link ? Confused | :confused:

Re: problem in url

David Crow12-Sep-07 3:13

David Crow

12-Sep-07 3:13

The same way you would any other piece of text. Most controls utilize SetWindowText() for this.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: problem in url

Hamid_RT12-Sep-07 6:58

Hamid_RT

12-Sep-07 6:58

Do you want to display a url on the dialog box or you want it has its characteristic?

Problem when adding JPEG images in ListBox

Atul2311-Sep-07 23:29

Atul23

11-Sep-07 23:29

Hi All,

I am using customize ListBox control in which I am adding JPEG images in ListBox. In this case there are 5 checkBox on dialog box and I want whenever user click on any CheckBox then imgage related to that check box will load and if user click on more than one check box then images related to that check box should be add in ListBox. I can display image in ListBox whenever user click on any checkBox it. But when he/she click on other checkBox then previous images gets disappear and new image placed at first position on listBox. So how can we solve this probelm. if any body have any solution then plz forward it.

Thanks in Advance

Atul

Re: Problem when adding JPEG images in ListBox

David Crow12-Sep-07 3:15

David Crow

12-Sep-07 3:15

How are you responding to the LBN_SELCHANGE notification?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

How to make Unistall.exe

GauranG Shah11-Sep-07 23:21

GauranG Shah

11-Sep-07 23:21

I am using the VC2005 Setup project to make the install.exe for my project. And I am using the following things for the Unistall.exe

I am using Shortcut with Following command line

Installer.msi /x GUID

GUID i m taking by right clicking on the Installer.
But the Problem is that it simply show me the dialog box about how to use the Commnad line argument with the Installer.msi

If u know what is the problem please help.

Thnx in Advance

Re: How to make Unistall.exe

Russell^'12-Sep-07 0:06

Russell^'

12-Sep-07 0:06

well, usually (if I well remembering) I uninstall my applications simply using the /u option. Hmmm | :|

Russell

Re: How to make Unistall.exe [modified]

GauranG Shah12-Sep-07 0:12

GauranG Shah

12-Sep-07 0:12

Hi,

I use the thing u told me but it also show me the same message.Following is the full path I am using in Shortcut.
"D:\Gaurang\installer.msi" /u
And when I use the Below code it tell me that packag doesn't exist. but the application is installed
"D:\Gaurang\installer.msi" /uninstall

-- modified at 6:17 Wednesday 12th September, 2007

Re: How to make Unistall.exe

Russell^'12-Sep-07 2:06

Russell^'

12-Sep-07 2:06

D:\Gaurang\SetUp.exe /u or /uninstall
where D:\Gaurang contains also installer.msi

Confused | :confused:

Russell

Re: How to make Unistall.exe

GauranG Shah12-Sep-07 3:00

GauranG Shah

12-Sep-07 3:00

I tried the Same thing you told me.But still I got the Error. Error is different then previous one. It is as follows

An Error Occure attempting to install installer.exe

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.