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hi,is there a tool which can monitor the specified IO data translation?
I need a tool which can monitor the data translation between one program and the CDROM,not only the action but also the data they exchange each other.
thanks
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Hi, all
<br />
CString cstr = "abcd";<br />
<br />
LPTSTR p = cstr.GetBuffer();<br />
<br />
p[2] = 'r';<br />
<br />
<br />
I want to change 'c' to 'r' in cstr.
How to do?
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hanlei0000000009 wrote: // cstr is abcd, but not is abrd
CString cstr = "abcd";<br />
cstr.SetAt( 2,'r');
hanlei0000000009 wrote: I want to change 'c' to 'r' in cstr.
But your purpose is to replace the c with r, you can use the Replace function..
CString cstr = "abcd";<br />
cstr.Replace( 'c','r');
modified on Thursday, March 27, 2008 11:37 PM
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You rarely need to use GetBuffer(). The CString class has most functions you need, including SetAt()...
CString cstr = _T("abcd");
cstr.SetAt(2, _T('r'));
If you insist on using GetBuffer(), remember:
"If you use the pointer returned by GetBuffer to change the string contents, you must call ReleaseBuffer ..."
CString cstr = _T("abcd");
LPTSTR p = cstr.GetBuffer();
p[2] = _T('r');
cstr.ReleaseBuffer();
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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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
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Someone said to me that in the next version of MFC, this function would be renamed to GetBufferIReallyKnowWhatImDoing()
Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP
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..and they will also add the method PlzGetBuf , always throwing by design.
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
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CPallini wrote: ..and they will also add the method PlzGetBuf, always throwing by design.
One more GiveMeBufOtherwiseOsama
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/codeProject$$>
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CPallini wrote: PlzGetBuf
Does it take a boolean parameter too? PlzGetBuf(BOOL bUrgent)
Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP
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Rajesh R Subramanian wrote: Does it take a boolean parameter too? PlzGetBuf(BOOL bUrgent)
Actually it does, however it is optional:
PXSTR PlzGetBuf(BOOL bUrgent = TRUE);
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP
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i will take ReleaseBuffer revenge!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/codeProject$$>
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I have to make a login screen for my application. and how do i do validation for this? the application that i am planning to do is an MDI. now the first thing when the exe is called the login screen should appear. so where should i call this dialog box?
if somebody can give me a link tht will lead to an example that would help me a lot.
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Chandrasekharanp wrote: where should i call this dialog box?
It could be the first window you create and show, or you could create your "main" window
hidden and show the dialog after creating the main window.
Same as creating any window - you control when windows are created and made visible.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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ok.. let me make it more clear..
when u click the exe the first screen tat will appear will be the login screen.. once the login and password is right the applications first window appears..
i hope its clear.. and i could not find any articles with login and password examples.
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That's clear.
What's not clear to me is what you're having trouble with.
You can pop up a modal dialog when your app starts running.
If the login fails you exit the app or loop and show the dialog again.
If the login succeeds, create the MDI window.
That's one way to do it. FWIW, that's what I do in my apps.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Mark Salsbery wrote: You can pop up a modal dialog when your app starts running.
that is my requirement.. how do i do that?
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Using DoModal() . I think you should read about creating a dialog
Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_
modified on Friday, March 28, 2008 2:25 AM
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i am aware of DoModal function.
i want a dialog box which pops up when the MDI application.exe is clicked. only once the login and password is correct the control should go to the application.
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How many times does he have to tell you the same thing?
If you're aware of the DoModal member function of a CDialog, then go ahead and use it. Fail. Change your code again, try!
What I did not see in your questions was any evidence that you have tried and failed to do anything. People come here to help, not to bottle feed.
BOOL CMyApp::InitInstance()
{
... some initialisation code?
CMyPasswordDlg dlg;
if (dlg.DoModal != IDOK)
return FALSE;
CMainFrame* pMainFrame = new CMainFrame;
if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
return FALSE;
m_pMainWnd = pMainFrame;
... etc as normal
return TRUE;
}
Iain.
ps, No, I'm not coming to your workplace to type it for you.
Iain Clarke appears even though he's grumpy.
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i did try in my code.. but just that i dint tell u what i did and how i did. i dont expect anybody to bottle feed me.
well thanks for the help
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Ok, glad to hear it - and I apologise a little. Did you progress further with the gappy code I showed you?
Iain.
Iain Clarke appears because CPallini still cares.
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Have you even bothered to look in your app's InitInstance() to see what normally goes on during startup? Have you tried to call DoModal() somewhere in there?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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i have actually got it done...desinging the screen and the implementation is done.now i need to work on the validation.. will come with some queries if i get stuck somewhere.
thanks..and i am using a MFC.
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Are you using MFC or straight Win32 APIs?
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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