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Saurabh.Garg wrote: But I declare a single variable in a line. This way I can add a comment for each variable I use.
Saurabh.Garg wrote: The problem is you can almost never predict how the class is going to be used at a later time.
Good points.
Saurabh.Garg wrote: I am not sure, but in certain cases adding const might help compiler to produce more optimized code.
Do you have any articles/books which explains this?
Thanks for your help
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you have an interview, don't you ? 
Christian Flutcher wrote: 1 - Which is the preferred way of using the pointer symbol ?
for me, I like to declare every variable separatedly, and I don't like to mix declarations of different types.
this way, I prefer using int* pi; syntax because I see immediately that pi is of type int*.
Christian Flutcher wrote: 2 - Is it a good practice to append const with member function that doesn't modify any member variables?
definitely, yes !
because the one who write the class is not always the one who will use it, a class definition has to be clear, and has to mean what the class is designed for.
When you have an accessor which just does a "get", the it's obviously not modifying the object, and should be declared as const.
Christian Flutcher wrote: I understand why const member functions exists. But if we are not planning to make the class object as constant,
humm, it seems to me that you don't fully understand the thing.
making a function member constant doesn't mean every function members have to be consts, and it doesn't mean either that the object will be used as a constant.
If you'd like to say that the object is used as a constant, then you would have to do like this :
<font color="blue">class</font> foo { ... };
<font color="blue">const</font> foo f(<font color="green"></font>);
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toxcct wrote: you have an interview, don't you ?
No I don't have. I just finished reading "Thinking in C++" and about to start a project in C++. So thought of getting some expert advice on those points.
Thanks for you help. It was really helpful.
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1/ I normally do:
int *pInt;
2/ the question you ask is why I never mix those. And if the variable it at all significant, it gets its own line. I use long variable names - thanks to intellitext they're just as easy to type, and a lot easier to read. Only loop vars get bunched together. int i,j,k;
3/ I try to use const on member functions that *shouldn't* modify the state, not whether I think I might do so. It gives me the freedom to change my mind in one direction, and makes it harder to code mistakes in the other.
Iain.
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Perfect ! Thanks for the help Iain.
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Can you elaborate? Format what like this?
-Saurabh
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123456789.00
to
123,456,789.00
Just add a comma every 3 digits at the left of the decimal point.
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Here is the correct method for displaying numerics in English_USA.1252
double dMoney = 0123456789.0123456789;
char szOldCppMoney[MAX_PATH] = {0};
char szNewCppMoney[MAX_PATH] = {0};
sprintf(szOldCppMoney,"%2.2f",dMoney);
LCID lc = MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT);
GetNumberFormat(lc,0,szOldCppMoney,NULL,szNewCppMoney,ARRAYSIZE(szNewCppMoney));
Output will be: "123,456,789.00"
Best Wishes,
-David Delaune
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See StrFormatByteSize if you want to use of bytes/kilobytes,...
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I use ShellExecute() to execute some operations on a ".txt" file. But it just executed a few of them and the others returned an Error.
These operations did not work:
-------------------------------------
1- Properties
2- Delete
3- Rename
.
.
.
Any help?
Thank you masters!
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Not all verbs are available to all files and folders.
As the docs state:
"Generally, the actions available from an object's shortcut
menu are available verbs."
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Yes I know! But the verbs Rename, Delete and Properties are common to all objectes. Aren't they?
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if you want to delete/rename a file, why don't you use the dedicated API ?
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I poked around my registry and tried a bunch of right-clicks
on files of different types...I couldn't find any type that supported
any of those.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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The next question is about catching all the SETTEXT message that are sent to a specific window:
I'm trying to hook all the settext messages that are sent to a specific window. The hook works almost perfectly, it intercepts all the settext messages and gets de windows handle stored in the pwp structure. pwp is a CWPRETSTRUCT type structure that contains the information of the SETTEXT hooked message.
The problem is that I can't get the text(caption) send to the window stored in the LPARAM of the settext hooked message (pwp->lParam. I only get garbage).
The idea is to get the text send to the window and save it to a file.
Im using a CallWndRetProc hook.
Here is my code.
LRESULT CALLBACK CallWndRetProc(int nCode, WPARAM wParam, LPARAM lParam)
{
TCHAR *a;
FILE *f1;
if(nCode < 0)
{
return CallNextHookEx(hook, nCode, wParam, lParam);
}
if (nCode == HC_ACTION)
{
CWPRETSTRUCT* pwp = (CWPRETSTRUCT*)lParam;
UINT message = pwp->message;
if (message == WM_SETTEXT)
{
unsigned int whandle = (unsigned int) pwp->hwnd;
// globalvar contains the
// (unsigned int)window's handle I want to catch.
if (whandle == globalvar)
{
LPARAM l = pwp->lParam;
// The problem is on the next line.
// Var a only gets garbage.
a = (TCHAR *) l
f1=fopen("c:\\hook.txt","a+");
fprintf(f1,"%d %s\n", whandle, a);
fclose(f1);
}
}
}
return CallNextHookEx(hook, nCode, wParam, lParam);
}
Ignacio Rivera
Mexico
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Could it be possible that the WM_SETTEXT you get has been "POSTED" and the buffer lParam contains a pointer at has been destroyed by the time you get the hook-call?
AtomAnt
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Hey Friends
I need to start an SDI Application (CFormView Based) Hidden
I do not want it to display main window first & then i cann showwindow(sw_hide)
In VC++ 6.0
I could do
....
AddDocTemplate(pDocTemplate);
m_nCmdShow =SW_HIDE;
...
but now in VS 2008
it does not works
Any clue?
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Don't use the WS_VISIBLE style when creating the window?
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Thanks
will try
it is a single document interface type application
so will try with CMainFrame & CMyFormView
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I need to compress a file programmatically without using any third party APPs but pure Win32/64 API or plain "C/C++". any one can help me?
Thank you masters!
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Does this page [^] help?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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 No! Because it has not introduced any function or algorithm, moreover I think it's only about NTFS!
Any way! Thank you my master, CPallini
![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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Jusef Marzbany wrote: No! Because it has not introduced any function or algorithm,
please elaborate.
Jusef Marzbany wrote: I think it's only about NTFS!
The requirements, from the documentation page I posted.
Client Requires Windows Vista, Windows XP, or Windows 2000 Professional.
Server Requires Windows Server 2008, Windows Server 2003, or Windows 2000 Server.
<pre>
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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