C / C++ / MFC

Maxwell Chen30-Apr-06 18:54

Maxwell Chen

30-Apr-06 18:54

Kevin McFarlane wrote:
Borland's recent decision to sell their IDE business?

I have heard this rumor for 2 years or more.

Maxwell Chen

Kevin McFarlane1-May-06 1:40

Kevin McFarlane

1-May-06 1:40

Well, it's actually an official announcement now. Was the rumour of two years ago also an official announcement?

Kevin

Maxwell Chen1-May-06 4:00

Maxwell Chen

1-May-06 4:00

It wasn't.

Maxwell Chen

Fritzables30-Apr-06 15:03

Fritzables

30-Apr-06 15:03

G'Day All,

Thanks for the help on this one.

Actually I may stay with creating an INI file instead of having to change a registry setting when ever I want to change a value.

No, I didn't know Borland was getting out if the IDE side of things - very interesting indeed. Is this a recent announcement ?

Pete

VC++( 2-d,3-d graphics problem)

Gordon Brandly1-May-06 7:50

Gordon Brandly

1-May-06 7:50

It was announced a couple of months ago. There's various articles on BDN about it, and much discussion on the borland.cppbuilder.* groups.

If Kevin's interested in my answer to his question: I've been using C++Builder almost exclusively since version 3 came out, but I started the move to VS 2003/2005 last autumn. I won't be completing the move for several years at least, since I have many current C++Builder applications to support and many more legacy apps I'll be supporting for a long time to come. The "DevCo" announcement just made me feel better about making the change -- I'm tired of using an IDE that's always a poor stepsister to Delphi. Frown | :(

RavindraKumar29-Apr-06 20:16

RavindraKumar

29-Apr-06 20:16

Hi
i,m ravindra new member of your team,
i, have a some problem these are.

How i can add my Zoom In and zoom out function in VC++ using MFC in 2d graphics like rectanle?
how can added rotate function in above problem which give a 3-d graphics?
it is a very urgent

ravindra
kannojia_123@rediffmail.com
Cry | :((

-- modified at 8:21 Sunday 30th April, 2006

Re: VC++( 2-d,3-d graphics problem)

John R. Shaw29-Apr-06 20:51

John R. Shaw

29-Apr-06 20:51

Go to the GDI section of codeproject, you will find some articles on programs that require that kind of functionality.

In order to zoom in and out you need to use the StretchBlt() function.

Something else that may come in handy is JrsCExBitmap.asp[^], which has information on 2D rotaion as well as providing an undo/redo feature to graphics editors.

INTP
"Program testing can be used to show the presence of bugs, but never to show their absence."Edsger Dijkstra

MFC

kumaraghuru29-Apr-06 19:26

29-Apr-06 19:26

i have a doubt regarding reading text from text files.

i have used CStudioFile and its Read() function to read. But, the String returned is in some other format.

please help regarding this.

does that text needs any conversion ?
Or any other classes are to be used ?

P. Kumaraghuru

Joe Woodbury29-Apr-06 19:46

Joe Woodbury

29-Apr-06 19:46

What kind of text are you trying to read? Is the application being compiled in Unicode or Ansi? Is the text file in Unicode or Ansi?

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

MFC

kumaraghuru29-Apr-06 20:03

29-Apr-06 20:03

i wrote the text into the file using

CStdioFile f1;
if( f1.Open( pFileName, CFile::modeCreate
| CFile::modeWrite | CFile::typeText ) )
{
f1.WriteString(_T(szSampleText));
f1.Close();
}

i need to read the same string.
please help me,
if there is any method to read the string?

YaronNir29-Apr-06 20:53

29-Apr-06 20:53

kumaraghuru wrote:
CStdioFile f1;
if( f1.Open( pFileName, CFile::modeCreate
| CFile::modeWrite | CFile::typeText ) )
{
f1.WriteString(_T(szSampleText));
f1.Close();
}

how about doing the same thing :

CStdioFile f1;
if (f1.Open(pFileName,CFile::modeRead))
{
   f1.ReadString(szSampleText));

   // ... do what ever with the string
   f1.Close();
}

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

kumaraghuru29-Apr-06 21:19

29-Apr-06 21:19

i have tried giving the same thing as specified by Mr. YaronNir

but, if the szSampleText array is printed, it returns some kind of irrelevant value.

is any type conversions are needed to fit this one.

YaronNir29-Apr-06 21:26

29-Apr-06 21:26

show me the exact code including the definition of the szSampleText string....

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

kumaraghuru29-Apr-06 21:23

29-Apr-06 21:23

i tried to give the same thing as specified by Mr. YaronNir

but the string it returns is in some other irrelevant form.

are there any type conversions or any other method to get the original string in a correct format

kumaraghuru29-Apr-06 21:06

29-Apr-06 21:06

sir, the text file was in unicode sir

Kumaraghuru

Joe Woodbury29-Apr-06 23:34

Joe Woodbury

29-Apr-06 23:34

CStdioFile reads/writes Multi-Byte ANSI text to the file even if the source code is compiled as UNICODE.

Visual Studio 2005 supports UNICODE/UTF-8 files with the buffered I/O series of CRT functions (fopen, fwrite, etc.), many which are used by CStdioFile. However, CStdioFile does not directly support these (due to how it opens files--it doesn't actually use fopen().)

Another option is to use the class from this article: http://www.codeproject.com/file/stdiofileex.asp[^]

I have not used nor tested this class, but I've looked at it and it seems to do what you want.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Active X Control supporting problem

bob1697230-Apr-06 4:59

bob16972

30-Apr-06 4:59

This will load a text file formatted in ANSI or UNICODE. It's meant to be used in a Doc/View app but you may find it useful to build on. It is in no way complete and it's kinda messy but it gets the data read in nonetheless...

// Assumes compiling for MBCS.
CString m_DataString // Member of document object so view can get to data

if (ar.IsStoring())
{
// TODO: add storing code here

}
else
{
// TODO: add loading code here
ar.Flush(); // Need to get rid of Mr. Hanky before
// calling CArchive::GetFile(). Hidee Ho!

CString sResult="";
CString sFileData="";
int nFlags=IS_TEXT_UNICODE_SIGNATURE;

const CFile * file=ar.GetFile(); // Get a const file pointer from CArchive
int nLength=file->GetLength();
LPSTR pBuffer=sFileData.GetBuffer(nLength+2); // Need 2 bytes for unicode
// null terminator, just in case

ar.Read(pBuffer,nLength); // Read the data in raw

// Append a unicode null terminator to prevent
// one of lifes little oopsees...Don't assume anything
pBuffer[nLength]='\0';
pBuffer[nLength+1]='\0';
nLength+=2; // Adjust 2 bytes for unicode null terminator

if (::IsTextUnicode(pBuffer,nLength,&nFlags)) { // Unicode encoded file

// Get the required buffer size for multibyte buffer
int nResultLength=::WideCharToMultiByte(CP_ACP,0,(PWSTR)pBuffer,-1,
NULL,0,NULL,NULL);

// Do the conversion and save it in member variable for when
// the view is ready to load
::WideCharToMultiByte(CP_ACP,0,(PWSTR)pBuffer,-1,
m_DataString.GetBuffer(nResultLength),
nResultLength,NULL,NULL);
m_DataString.ReleaseBuffer();
sFileData.ReleaseBuffer(); // pBuffer no longer valid

m_DataString.Delete(0,1); // Remove what used to be the
// Unicode byte-order mark 0xFEFF

} else { // File not encoded

sFileData.ReleaseBuffer(); // pBuffer no longer valid
m_DataString=sFileData; // Save it in member variable for when
// the view is ready to load
}
}

-- modified at 11:07 Sunday 30th April, 2006

chybin29-Apr-06 19:19

chybin

29-Apr-06 19:19

I have created a project not supporting activeX controls,but now i must
use activex control,which item should i update in .vcproj file to make the project supportting active controls? Or i have to create a new project and inport all files ?

Re: Active X Control supporting problem

YaronNir29-Apr-06 22:18

controlling another application

29-Apr-06 22:18

when you mark the check box in the wizard to support ActiveX controls,
a method is being added to your InitInstance function. the method is called AfxEnableControlContainer

just add it at the begining of your init instance function.

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Sam 200629-Apr-06 16:18

Sam 2006

29-Apr-06 16:18

hi,

i need a lot of help with this. i am trying to set and get the text in a RichEdit20W of another application. i know the window title and nothing else. i'm pretty sure this is possible (anything is?) but i've tryed a lot of things but haven't had any luck.

i don't need the whole answer (although it would be nice Smile | :)

), im just looking for a point in the right direction.

thanks in advance.

Re: controlling another application

Justin Tay29-Apr-06 18:29

Justin Tay

29-Apr-06 18:29

Have you tried getting the HWND of the richedit control and sending EM_GETTEXTEX?

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/common/common.asp[^]

Re: controlling another application

YaronNir29-Apr-06 21:29