C / C++ / MFC Discussion Boards

Code-o-mat20-Dec-08 2:19

20-Dec-08 2:19

I still don't quite get what you want, what do you mean by "get data from column"? You want to know the size needed to display all the text in a given row and column? Use either GetTextExtent or DrawText with DT_CALCRECT, look these up in the docs.
To draw a bitmap you will need to make a memory DC, select the bitmap into it and then use BitBlt to render it onto whatever you want to render it onto.
So something like this:

CDC MemDC;
MemDC.CreateCompatibleDC(&your_target_dc);
CBitmap *OrigBitmap = MemDC.SelectObject(&the_bitmap_you_want_to_display);
your_target_dc.BitBlt(0, 0, bitmap_width, bitmap_height, &MemDC, 0, 0, SRCCOPY);
MemDC.SelectObject(OrigBitmap);

But you can find this also in the documentations all around the net, Google is your friend.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

Re: How can change CRect Value?

Le@rner21-Dec-08 17:29

Le@rner

21-Dec-08 17:29

I m use this(DT_CALCRECT) in DrawText but when i use this the text is not displayed.i dont know how?

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: How can change CRect Value?

Code-o-mat21-Dec-08 22:05

Code-o-mat

21-Dec-08 22:05

If you'd read the documentation you'd know that DT_CALCRECT won't actually display the text but only measure its extent.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

Re: How can change CRect Value?

Le@rner21-Dec-08 20:41

Le@rner

21-Dec-08 20:41

Code-o-mat wrote:
CDC MemDC;MemDC.CreateCompatibleDC(&your_target_dc);CBitmap *OrigBitmap = MemDC.SelectObject(&the_bitmap_you_want_to_display);your_target_dc.BitBlt(0, 0, bitmap_width, bitmap_height, &MemDC, 0, 0, SRCCOPY);MemDC.SelectObject(OrigBitmap);

I m try this its works,but the image diplayed very-very small thats why its not properly visible.

please tell me what can i do for this.

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: How can change CRect Value?

Code-o-mat21-Dec-08 22:02

Code-o-mat

21-Dec-08 22:02

Use CDC::StretchBlt[^], but be carefull with that because it seems not all printer drivers support it.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

Re: How can change CRect Value?

Le@rner21-Dec-08 22:05

Le@rner

21-Dec-08 22:05

if i want to load bitmap from browse path,how can i use here.

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: How can change CRect Value?

Code-o-mat21-Dec-08 22:43

Code-o-mat

21-Dec-08 22:43

By using the magical tool, Google and finding this[^] with it.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

Split the view

kiranin19-Dec-08 20:29

kiranin

19-Dec-08 20:29

Is it possible to split as follows

2 rows and one of the row into 3 columns, how can i do that?

Re: Split the view

Hamid_RT19-Dec-08 20:48

Hamid_RT

19-Dec-08 20:48

See Splitter Window Tutorial [^] and SDI with split window[^].

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

How to link Ribbon Menus with the Window Pane in a ribbon?

Larry Mills Sr19-Dec-08 15:43

Larry Mills Sr

19-Dec-08 15:43

I've tried the simple examples included in the MFC Feature Pack - Samples and not one of them show how to link=up a window-pane with it's sub-menu(a self created "Menu" ) ie System DB(pane) IDR-SYS_DB, Create, Add, Edit(Create, Add, Edit sub-menu selections(buttons)). The MDIDemo.sin only shows the "View" and "Window" panes and only the "Windows" pane has a menu attached to it but nowhere does it show how the linkage is made(or at least I can't find it.) Is there an example out there that someone may know of that will show how to link up "Panes" with the sub-menu "Buttons"? please point me to the web-page if you know of one. Thanks in advance.

A C++ programming language novice, but striving to learn

Using CreateFile() to open LPT1 Fails on Windows 2008 Terminal Server

Steve Thresher19-Dec-08 10:19

Steve Thresher

19-Dec-08 10:19

CreateFile() is failing and GetLastError() returns 2, file not found, when attempting to open any LPT port. The same code works on all previous versions of windows and I can successfully open COM1. Can anyone suggest what has changed in Windows 2008? Is there some kind of policy setting that disables all LPT ports by default?

Re: Using CreateFile() to open LPT1 Fails on Windows 2008 Terminal Server

Randor 19-Dec-08 10:40

Randor

19-Dec-08 10:40

Try using the internal name"\\DosDevices\LPT1" or "\\Device\Parallel0" and see if that works.

[Edit]
Adding reference docs
Parallel Device Interfaces, Internal Names, and Symbolic Links[^]

Best Wishes,
-David Delaune

Re: Using CreateFile() to open LPT1 Fails on Windows 2008 Terminal Server

Steve Thresher23-Dec-08 6:07

Steve Thresher

23-Dec-08 6:07

Thanks for the suggestions but I've found out now it was down to how I was opening the port. I was treating the LPT port like a communication resource which requires the dwCreationDisposition to be set to OPEN_EXISTING. I used PROCMON.EXE from SysInternals to check what 'dir >LPT3' was using and that showed the dwCreationDisposition was set to CREATE_ALWAYS. A quick change to my program and all is working again. I've also tagged this information onto the MSDN help for CreateFile().

Re: Using CreateFile() to open LPT1 Fails on Windows 2008 Terminal Server

Randor 24-Dec-08 17:22

Randor

24-Dec-08 17:22

I was going to mention this in my initial reply but decided to leave it out. D'Oh! | :doh:

Glad that you figured it out.

Best Wishes,
-David Delaune

COleDateTime VC++ 6.0 to VC++ 9.0 porting

pratap198019-Dec-08 8:33

pratap1980

19-Dec-08 8:33

Hi All,

I had a piece of code on COleDateTime.

COledateTime shiftStart;

if (shiftStart.invalid)
shiftStart += COleDateTimeSpan(1,0,0,0);

in this piece of code shiftStart is invalid when i do an arthimatic on this i am getting an assertion.
I want to convert the invalid datetime to valid datetime thru arthimatic.

in VC++6.0 there is no assertion as the COledateTime code in AFXOLE.INL dosent have assertion check.
in VC++ 9.0 ATLCOMTIME.INL have the assertion check for valid date.

how can i force the compile to use the old AFXOLE.INL or is there a way arround to fix it in the code?

Thanks Everyone.

Re: COleDateTime VC++ 6.0 to VC++ 9.0 porting

Stuart Dootson19-Dec-08 8:45

Stuart Dootson

19-Dec-08 8:45

pratap1980 wrote:
how can i force the compile to use the old AFXOLE.INL

They're not adding the assertion in for fun - it's because what you're doing is (strictly) erronous.

You need to think about why your COleDateTime is invalid and fix it some other way.

It's always better to think beyond the immediate problem and find the root cause of your problem...

CListCtrl and the OnColumnClick event.

Chris Meech19-Dec-08 8:29

Chris Meech

19-Dec-08 8:29

When handling this message, is it possible to get the text for the header that was clicked?

void CSomeFancyListCtrl::OnColumnclick(NMHDR* pNMHDR, LRESULT* pResult) 
{
  NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
..
..
  *pResult = 0;
}

Is there a GetItem() or GetItemText() using either pNMHDR or pNMListView that would work? Thanks. Smile | :)

Chris Meech
I am Canadian. [heard in a local bar]
In theory there is no difference between theory and practice. In practice there is. [Yogi Berra]

Re: CListCtrl and the OnColumnClick event.

Code-o-mat19-Dec-08 8:37

Code-o-mat

19-Dec-08 8:37

As stated here[^], iSubItem tells you which column was clicked, then you can use this[^] to obtain a pointer to the header control itself and use this[^] to get the information you need about the column.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

Re: CListCtrl and the OnColumnClick event.

Chris Meech19-Dec-08 8:51

Chris Meech

19-Dec-08 8:51

Thanks for such an excellent response. It's perfect. Smile | :)

Chris Meech
I am Canadian. [heard in a local bar]
In theory there is no difference between theory and practice. In practice there is. [Yogi Berra]

FTP Append with FtpCommand on WinCe

davidschneider8119-Dec-08 3:21

davidschneider81

19-Dec-08 3:21

I try to implement the FTP Command APPEND on a WinCe5.0 Device but get allways a access violation exception. Although the prgramm crashed the text was appended to the file on the server.

Thank you for your help.

hRootHandle = InternetOpen(TEXT("WinCeFtp"), INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
hFtpHandle = InternetConnect(hRootHandle, TEXT("server"), INTERNET_DEFAULT_FTP_PORT, TEXT("user"), TEXT("password"), INTERNET_SERVICE_FTP, 0, 0);

WCHAR szTemp[256];
wsprintf (szTemp, TEXT("APPE %s"), TEXT("DestFile.txt"));

int bRet = FtpCommand(hFtpHandle, TRUE, FTP_TRANSFER_TYPE_ASCII, szTemp, 0, &hResponse);
if (!bRet) {
  wprintf(TEXT("FtpCommand failed, error: %i\n"), GetLastError());
  return 1;
}

sprintf(buffer, "This data will be appended to the file");

DWORD dwLength = strlen(buffer);
if (!InternetWriteFile(hResponse, (LPVOID)buffer, dwLength, &dwWritten)) {
  wprintf(TEXT("InternetWriteFile failed, error: %i\n"), GetLastError());
  return 1;
}

InternetCloseHandle(hFtpHandle); 
InternetCloseHandle(hRootHandle);

Re: FTP Append with FtpCommand on WinCe

Code-o-mat19-Dec-08 7:40

Code-o-mat

19-Dec-08 7:40

Where does it crash?

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

Re: FTP Append with FtpCommand on WinCe

davidschneider8121-Dec-08 23:26

davidschneider81

21-Dec-08 23:26

It crashs in the InternetWriteFile function with a access violation exception.

Re: FTP Append with FtpCommand on WinCe

Member 134925924-Feb-09 20:49

Member 1349259

24-Feb-09 20:49

You should set the second parameter to FALSE when don't excect answer from FTP server.
Or you need to call the InternetReadFile function before.

fExpectResponse
A Boolean value that indicates whether the application expects a data connection to be established by the FTP server. This must be set to TRUE if a data connection is expected, or FALSE otherwise.

Is there any function to modify SubString of a string in VC++

kapardhi19-Dec-08 1:39

kapardhi

19-Dec-08 1:39

Hai!
suppose
CString str = "This is our Book";
CString strSub = "my";
is there any function which can modify str with the value in strSub
like str.MODIFY(strSub, 9, 2);
then str must become "This is my Book"

Re: Is there any function to modify SubString of a string in VC++

VC++Maniac19-Dec-08 1:43

VC++Maniac

19-Dec-08 1:43

Your productivity and efficiency will increase exponentially if you refer the documentation. Big Grin | :-D

CString::Replace

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