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If MS Word is the editor there, then you can write it in VBA. I'm not sure, but there'd be something like selection.gettext
Nobody can give you wiser advice than yourself. - Cicero
ப்ரம்மா
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Is there any difference between the following two commands?
sprintf(oOrder.ContractName , "%s\0", ContTick.ContractName);
strcpy(oOrder.ContractName, ContTick.ContractName);
Both operands are defined as
typedef CHAR ConNameStr[11];
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Oliver123 wrote: Is there any difference between the following two commands?
No 
Not in the result, anyway.
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Mark is correct. However, sprintf is used for copying the string with formatting, and strcopy is used purely for string copying. If you are just copying a string, why use sprintf with its apparent overhead. It also has more of a chance to cause a buffer overrun.
"We make a living by what we get, we make a life by what we give." --Winston Churchill
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Oliver123 wrote: sprintf(oOrder.ContractName , "%s\0", ContTick.ContractName);
To add to previous replies. Here, you dont need to append NULL character , it will taken care by sprintf.
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The results will be almost the same, save for the fact that the sprintf(...) example will place two NUL characters at the end of the string.
The sprintf(...) function is designed to build a formatted string using a variable list of parameters, and it can do this formatting in many different ways. As a result, its implementation is somewhat complex, and it may take longer to run than a call to strcpy(...) in this simple case.
The strcpy(...) function is designed to copy strings. As such, its implementation is much simpler, and it may execute faster than sprintf(...).
Both functions have the potential to overrun the target buffer, because they (as shown) will not limit the data copied to the buffer. Using a function like strncpy(...) allows you to enforce the amount of data copied to the target buffer, but you may have to watch out for a missing terminating NUL character in some cases.
Not that you asked, but I would suggest using strcpy(...)/strncpy(...) for copying strings - that is what they were designed to do and what they are generally optimized for. IMHO, using functions like printf(...)/sprintf(...) for static/constant strings indicates either a lack of understanding or a unconscious need to use a shotgun to kill a fly!
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
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James R. Twine wrote: ...save for the fact that the sprintf(...) example will place two NUL characters at the end of the string.
FYI - Not true
Beer. It's not just for breakfast anymore!
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And you get the 5...!
Yeah, I know...  I was thinking about how the static string "%s\0" would actually have two NULs in memory.
Oh, well... I am sure we all have done something WTF-worthy once (or twice, or thrice, or a hundred?) times... 
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
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Why is Visual before Visual C++? What is it doing there, did it come from microsoft?
Also, this might be a little off topic but what about Visual Basic or Visual C#. Sorry, I'm new to these forums and coding.
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C++ is a programming language, whereas Visual C++ is a (Microsoft's) IDE (Integrated Development Environment) that compiles your C++ code into Window's executables. So, Visual C++ is a product, a program, and C++ a programming language. The same for Visual Basic and Visual C#.
A polar bear is a bear whose coordinates has been changed in terms of sine and cosine.
Personal Site
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Just adding to the previous post, the Visual of C++ and the other languages comes from the IDE usage of wizards and designers the assist you to "visually" create applications. Thus, instead of writing code to place a textbox on a window, you actually drag and drop it and the designer will write the code as a result of that action.
"We make a living by what we get, we make a life by what we give." --Winston Churchill
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Code2326 wrote: Why is Visual before Visual C++?
just like ++ after C!
Code2326 wrote: What is it doing there, did it come from microsoft?
VC++ is just like c++ but it has support to write Window Based program. yeah it's from MS
but based on specification of ANSI
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and you
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ThatsAlok wrote: VC++ is just like c++
That can be very confusing. Beginners often do not realize the difference between the language/compiler and the other software that VC provides. It is very important to emphasize that VC is not the same as C++. Note that when I say VC, I mean the same as VC++ but the ++ part is as extraenous as all the other characters excluded from Visual C++.
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So I should learn Visual C++ rather than C++?
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It is a marketing thing. The marketing parts of companies use terminology to impress management types but the terms don't make sense to technical people like us.
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First, if this is the wrong forum, forgive me for asking here  I didn't think it belonged on the Lounge, and the ADO board seemed too specific.
So I'm implementing a DB kit and I have a question about implementing editing for SQLP based DBs.
I have the library set up to edit a field (or column). However, after you edit a value in a field and post the changes, if you want to return to iterating through the values, or even if you then want to retrieve the current values, it seems that you need to remember the row you were on when you made the edit, and then make a new SQL query and then iterate back to that row. Is this in fact the case, or am I missing something obvious?
For "browsing" mode, would creating a "VIEW" using the SQL "CREATE VIEW" syntax work?
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This is a job for Colin Angus Mackay !
(background music duh--duh--duh-duh ! as he flies in wearing his DB cape).
... ok, so you posted to the C++ instead of SQL forum, you'll have to take what you get.
Don't know what SQLP is.
However, the rest of the post sounds like you want to specify the type of cursor your statement uses. Between using a cursor that reflects changes (by you or others) and/or bookmarks you should be able to do what you want. Creating a view isn't what you want (in most (older ?) systems views are read-only).
...cmk
Save the whales - collect the whole set
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cmk wrote: Don't know what SQLP is.
Sorry, meant SQL
OK, so it sounds like I have to know whether or not the SQL lib I use supports cursors. While I plan to support a number of various DB types (like ODBC and Firebird) my first is to support SQLite. From what I can tell SQLite doesn't support cursors. If this is in fact the case, then do I need to resort to the "brute force" method I mentioned initially (i.e. keep track of the row number and then redo the query and re-iterate back to this row)?
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Hmmm, a quick look at SQLite and i couldn't find any cursor info as well.
It looks like the query just calls a callback for each row.
I would treat this (SQLite) as an anomaly and write ODBC/OLE DB wrappers, you'll support more DB's from the effort. ODBC is cross platform and RDBMS independent, i would do it first (and in fact did for my framework).
So yes, you would then be responsible for caching rows - i.e. you write the cursor code.
e.g. look at the GRASS (gis) source for their sqlite driver (sqlite/fetch.c):
http://grass.itc.it/download/index.php[^]
... just looked, they only support forward-only cursors, but they also have an odbc driver, it's still worth looking at their code.
[EDIT]
Also see works like:
http://www.ch-werner.de/sqliteodbc/[^]
[/EDIT]
...cmk
Save the whales - collect the whole set
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Hi All
I need to start my MFC application with a window derived from CDialog
but I've got an exception.
Below the code I used.
What do I need to add to the Dialog class to let it be displayed?
I'm not using any .rc file and I want to built the dialog via code.
Thank you
manustone
<br />
<br />
<br />
class CGuiTestDlg : public CDialog<br />
{<br />
public:<br />
CGuiTestDlg(CWnd* pWnd);<br />
virtual ~CGuiTestDlg();<br />
<br />
virtual BOOL OnInitDialog();<br />
<br />
DECLARE_MESSAGE_MAP()<br />
};<br />
<br />
<br />
BEGIN_MESSAGE_MAP( CGuiTestDlg,CDialog )<br />
END_MESSAGE_MAP()<br />
<br />
CGuiTestDlg::CGuiTestDlg(CWnd* pWnd)<br />
: CDialog( ID_GUI_TEST_DLG, pWnd )<br />
{ <br />
}<br />
<br />
CGuiTestDlg::~CGuiTestDlg()<br />
{}<br />
<br />
BOOL CGuiTestDlg::OnInitDialog()<br />
{<br />
CDialog::OnInitDialog();<br />
return FALSE;<br />
}<br />
<br />
<br />
<br />
class CGuiTestApp : public CWinApp<br />
{<br />
public:<br />
CGuiTestApp( LPCTSTR lpszAppName );<br />
virtual ~CGuiTestApp();<br />
virtual BOOL InitInstance();<br />
};<br />
<br />
extern CGuiTestApp theApp;<br />
<br />
<br />
CGuiTestApp theApp( "Gui Test Application" );<br />
<br />
CGuiTestApp::CGuiTestApp( LPCTSTR lpszAppName )<br />
: CWinApp( lpszAppName )<br />
{ <br />
}<br />
<br />
BOOL CGuiTestApp::InitInstance()<br />
{<br />
CWinApp::InitInstance();<br />
<br />
CGuiTestDlg dlg(NULL);<br />
m_pMainWnd = &dlg;<br />
INT_PTR nResponse = dlg.DoModal();<br />
<br />
if (nResponse == IDOK)<br />
{<br />
}<br />
else if (nResponse == IDCANCEL)<br />
{<br />
}<br />
<br />
return FALSE;<br />
}<br />
<br />
CGuiTestApp::~CGuiTestApp()<br />
{}<br />
<br />
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You'll need to construct a DLGTEMPLATE or DLGTEMPLATEEX struct in-memory and call DialogBoxIndirect(). I've never tried this with CDialog, I don't know if it's as easy to use as the normal case of just giving it the resource ID. I know I've seen an example here on CP of how to build up that struct in memory.
EDIT: My MSDN finally got done installing so I checked the docs, and the function to look at is CDialog::InitModalIndirect()
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Thank you very much.
I tried and it works.
The most important thing is that the CDialog class MUST be derived from the empty constructor from CDialog.
Many Thanks
manu
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I have some Borland C++ source files. I want to extract parts of them and use them in a C# project.
I modified/recompiled one of the simple C++ .cpp files into a .dll file successfully and have been able to access its classes from my C# project.
But...and there's always a butt...some of the C++ .cpp files make calls to classes in other C++ .cpp files. If I have two C++ .cpp files and one of them calls a class from the other C++ .cpp file, can I compile the two files into one .dll ? If so, I'm not having much luck doing this with Borland Builder 6, maybe you have some pointers.
If it is not possible to do what I have described, what is the correct approach?
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I recently un-installed and re-installed Visual Studio 6.0. Something I noticed at the end of the installation process (I don't remember seeing this before) was a message box that popped up saying"
Setup has installed an icon in the Microsoft Visual C++ 6.0 group, that will allow you to install a subset of the Windows NT system symbols(.DBG) files....
For easier application debugging, it is strongly recommended that you install these files..
When I try clicking on the icon they mentioned, I get messages saying that the files I am trying to install don't coincide with the DLLs in my system32 area. This is strange because it is asking me to load the CD that I just used to install Visual Studio.
Anyways, I built a small dialog app with only one button. When I try to debug this app even with no breakpoints, after the dialog box for the app is put on the screen, I get a message box that says
User breakpoint called from code at 0xa725cd.. and the break pointer is at that address in machine code.
If I put a breakpoint inside OnInitDialog(), everything works fine, the code stops and I can look at watch points. But, once the app is allowed to run to where the dialog box is displayed, I get what I mentioned above.
Once I "stop debugging" the output window has the following in it
Loaded 'ntdll.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\kernel32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFC42D.DLL'
Loaded symbols for 'C:\WINDOWS\system32\MSVCRTD.DLL'
Loaded 'C:\WINDOWS\system32\gdi32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\user32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFCO42D.DLL'
Loaded 'C:\WINDOWS\system32\comctl32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\advapi32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\rpcrt4.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\uxtheme.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msvcrt.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\dllt.dll', no matching symbolic information found.
First-chance exception in MoreButtons.exe (DLLT.DLL): 0xC0000005: Access Violation.
The program 'D:\PROJECTS\MoreButtons\Debug\MoreButtons.exe' has exited with code 0 (0x0).
Is it possible that I might have some corrupt files in my system32 folder????
Thank you in advance for any help
Pierre
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