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"Good" is in the eye of the reader! I have Kruglinski's Inside Visual C++ (which includes nothing for v6), and Mastering MFC Development Using Microsoft Visual C++ 6.0 by Microsoft Press.
I believe all books are intended for a particular target audience. I've read very little of either book because most of what they contain I've known about simply by using MFC from its inception (see my earlier note on stepping through code). I'm no MFC expert, and probably learn 1-2 new things about it each week.
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I want to install the "Standard 19200 bps Modem" in Windows
programmatically and set some modem properties like "Use flow control" (AT commands)
etc .
Any pointers would be very helpful.
Regards,
Ajith
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Hi all
How do I measure the time taken to execute a function? I'm working on a real time project at the moment so I want to know how fast my program would go. I've noticed the function time(time_t *) but I don't know how it works. Can anybody please give me some codes on how to use it?
Thanks a lot
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Heres an article i wrote a while back, it should give a good idea how to clock your functions.
http://www.codeproject.com/cpp/profiler.asp
Cheers
"Two wrongs don't make a right, but three lefts do!" - Alex Barylski
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For Win32/x86 the most accurate is:
class CHPFCounter
{
public:
__int64 m_started;
void Start()
{
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
m_started = li.QuadPart;
}
double Time()
{
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
__int64 ticks =li.QuadPart - m_started;
QueryPerformanceFrequency(&li);
double seconds = (double) ticks / li.QuadPart;
return seconds;
}
};
Time() returns time in seconds (resolution is around CPU clock).
However, it's recommended to
a) measure each snippet multiple times, to see variations
b) verify the assembly that you indeed measure what you think you measure
"Der Geist des Kriegers ist erwacht / Ich hab die Macht" StS
sighist | Agile Programming | doxygen
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hi you can do profiling ,
see the article at
http://www.codeproject.com/useritems/profiling_isapi.asp
regards
tarun
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Using time(time_t *) is easy. time_t is declared as typedef long time_t. The function time(...) returns the time elapsed in seconds from the start of the system's calender. On my system, it returns how many seconds elapsed since 00:00:00 1/1/1980. To use this function to calculate time difference, you may look at double difftime ( time_t timer1, time_t timer0 ). I believe that using clock_t clock() would give much more accurate results. For example, write:
clock_t start, finish;
start = clock()
finish = clock()
cout << "The function took " <<
double(finish - start) / CLOCKS_PER_SECOND <<
" seconds.\n";
<marquee>Hosam Aly Mahmoud
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I have 2 program listings as a function in VB6. I want that function run in C++ Builder6, but i confuse the way to access FileSystemObject and type, DateLastModified of a file and to initiate interval variable with the type Date
//--------------------------------------------------------------------------
Function del()
Dim a As FileSystemObject
Dim d As Folder
Dim c As file
Set a = New FileSystemObject
Set d = a.GetFolder("d:\oracle\admin\" & HOST.Text & "\udump\")
For Each c In d.Files
If c.Type = "TRC File" Then
c.Delete True
End If
Next
End Function
//-----------------------------------------------------------------------------
Function newest() As file
Dim a As FileSystemObject
Dim d As Folder
Dim c As file
Dim interval As Date
interval = #12/12/2012#
Set a = New FileSystemObject
Set d = a.GetFolder("d:\oracle\admin\" & HOST.Text & "\udump\")
For Each c In d.Files
If (interval > (Now() - c.DateLastModified)) Then
interval = (Now() - c.DateLastModified)
If c.Type = "TRC File" Then
Set newest = c
End If
End If
Next
End Function
//--------------------------------------------------------------------------
Thx for helping me;)
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Hi,
I want to get the user account information from the local machine. For this I'm using NetUserGetInfo method. Moreover I want to know if a particular user account has been disabled or not. I went through some Network Management Structures but din't come across any structure that would explicitly provide me with this info. Kindly anybody tell me how to extract this info from Windows using Net API.
Thanks
Abhishek.
Learning is a never ending process of Life.
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Look at the usri2_flags member of the USER_INFO_2 structure.
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Hi all,
I want to use a tab control inside apropertyPage,but i have absolutly no idea
about how to use a tab control in MFC.Can i get a step by step Tutorial to add a tab control and adding controls to each tab.I searched the web ,but couldn't found a good tuto.Any help would be appreciated.
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Are you talking about a property sheet that contains multiple property pages? If so, take a peek at CPropertySheet and CPropertyPage.
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Thanks a lot John and David,
I solved my problem
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Hi ,
I again have a problem,i have this modal tabbed Dialog inside a propertyPage,I want this tabbed sheet as a fixed position(unmovable,unresizable).
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NOTE:
If you don't know how Property sheets work, continue reading, if you already know, don't continue... 
Well, a "CPropertySheet" it's a container class, it contains several "CPropertyPage"s.
in order to make it work you must follow those easy steps:
1. Create a dialog for each "page" you need.
2. Place all the controls inside the dialog using the resource editor.
3. Then you'll need to map all the messages you need, in order to do so, create a class for the newly created and populated dialog, and select the class CPropertyPage.
4. Repeat step 2 and 3 until you've finished to populate/define the recently created property pages (dialogs).
5. Now you must create a new class from the class wizard, select the base class CPropertySheet.
6. Modify the newly CPropertySheet in order to add the required pages in it's constructor.
7. Call the property sheet from your code.
this is how it works...
if you need more help on this topic, e-mail me...
hope this helps...
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Thanks a lot,John and david.
I solved my problem.
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Hi ,
I again have a problem,i have this modal tabbed Dialog inside a propertyPage,I want this tabbed sheet as a fixed position(unmovable,unresizable).
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I don't understand you: if you have one thing inside another, normally the child window is not resizeable and neither it can be moveable...
have you created the new window as a child of the parent one?
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Hi,
No I am creating a window in OnSetActive() event of the propertyPage that contains it.I don't know how to make it a child.
My code looks like this:
//CReportWizPage is a propertyPage on which i want to create the Tabbed Pages.
//CReportTabbed is the PropertySheet that embeds these pages.
CReportWizPage::OnSetActive()
{
CPropertySheet* psheet = (CPropertySheet*) GetParent();
psheet->SetWizardButtons(PSWIZB_BACK | PSWIZB_NEXT);
CReportTabbed report(IDS_TABBED,this);
CReport1Tab rep1;
CReport2Tab rep2;
report.AddPage(&rep1);
report.AddPage(&rep2);
if(report.DoModal() == IDOK)
{
//........
}
return CPropertyPage::OnSetActive();
}
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if you use DoModal(), then you are making the property sheet appear as a standalone component that isn't owned by nobody (only by the app).
<br />
this->m_pPSEstacio = new CPSEstacio("", this, 0);<br />
<br />
this->m_pPSEstacio->Create(this, WS_CHILD | WS_TABSTOP | WS_VISIBLE);<br />
this->m_pPSEstacio->ModifyStyleEx(0,WS_EX_CONTROLPARENT);
Hope this helps...
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I am having some trouble getting images to display properly.
What my real problem is as follows.
I have an image displayed and am able to drag a rectangle over parts of the image. I am able to get a copy of the image that is selected by the dragged rectangle. With this image copy I change it to black and white. Now I want to display this copy on the original image. The problem I have is that it doesn't display where I dragged the rectangle but some place else. I used pDC->DPtoLP(point) when I captured the points for the rectangle. I use the same points again for the place where I want the copy of the image to display again.
Can anybody help? or direct me to a good tutorial.
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During the lifetime of a C/C++ project several header files are
added because source snippets are moved between source-files. Seldom
are any header files removed. It's to much work to manually walk through
each source file and check if a header is no longer needed.
So, is there any tool (besides Gimpel's PC-Lint which is beyond my
budget) that can tell me which headers are no longer needed? It would
need to understand C/C++ off-course
Gisle V.
"If you feel paranoid it doesn't mean they're not after you!" -- Woody Allen
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I think SPLint is what you might be looking for.
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Correct Clickety[^] 
Ryan
Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2nd April 2003, The Lounge)
Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late - John Nichol "Point Of Impact"
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