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Hi all,
How can i know a purticular file exist at selected location?
For example:: test.txt is a file, i want to save it in MyDocuments.
so, how can i check before saving of test.txt, test.txt is exist in MyDocuments or not.
Thanks in advance.
IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH
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I already told you it can be done by using FindFirstFile API. If the file does not exists INVALID_HANDLE_VALUE is the return value else you get a handle to the file.
Why a new thread is needed to post a query?
The previous thread was not too long [That of - Only copying done not replacing in SHFileOperation !!!]
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
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CString m_strFile = _T("C:\\path\\to\\file.txt");
if (::PathFileExists(m_strFile)) {
}
else {
}
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The "classic" Win32 way (without MFC):
1. use GetFileAttributes()
2. check the return value
3. if it is 0xFFFFFFFF then check what
4. GetLastError() returned (if the file does not exist, it would be ERROR_FILE_NOT_FOUND)
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Have you tried _access()?
"Love people and use things, not love things and use people." - Unknown
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi Friends
I need your help...in MFC
How to create Address book in MFC?
Regards
Nisha
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One of the options would be to take the input from the UI entered by the user and put it into the database. The database would contain tables to store the information for a contact.
You can also use a file to store the information or XML.
There are many a ways you can do this. you need to figure out what fits your problem description, complexity and what would be the size of the address book
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
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nisha00000 wrote: How to create Address book in MFC?
Possibly programming.
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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CPallini wrote: Possibly programming.
Very Iainesque!
Iain.
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Trying to emulate the master.
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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nisha00000 wrote: How to create Address book in MFC?
An address book in general, or the Windows Address Book (wab.exe)?
"Love people and use things, not love things and use people." - Unknown
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi all,
I have a list control. Now i want that my list control should show two properties simultaneously :-
i) alternate row colour
ii) when i run my thread it should display green or red colour
i have code for exibiting both propertirs but they are not working simultaneously......
code for displaying alternate ro colour is as follows:
*void CColoredListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
*pResult = 0;
LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)pNMHDR;
int iRow = lplvcd->nmcd.dwItemSpec;
switch(lplvcd->nmcd.dwDrawStage)
{
case CDDS_PREPAINT :
{
*pResult = CDRF_NOTIFYITEMDRAW;
return;
}
case CDDS_ITEMPREPAINT:
{
lplvcd->clrText = RGB(0,0,0);
*pResult = CDRF_NOTIFYSUBITEMDRAW;
return;
}
case CDDS_SUBITEM | CDDS_PREPAINT | CDDS_ITEM:
{
if(iRow %2){
lplvcd->clrTextBk = m_colRow2;
}
else{
lplvcd->clrTextBk = m_colRow1;
}
*pResult = CDRF_DODEFAULT;
return;
}
}
}
and for displaying color at runtime is as follows
void CColoredListCtrl::OnCustomDraw ( NMHDR* pNMHDR, LRESULT* pResult )
{
NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>( pNMHDR );
*pResult = CDRF_DODEFAULT;
if ( CDDS_PREPAINT == pLVCD->nmcd.dwDrawStage )
{
*pResult = CDRF_NOTIFYITEMDRAW;
}
else if ( CDDS_ITEMPREPAINT == pLVCD->nmcd.dwDrawStage )
{
*pResult = CDRF_NOTIFYSUBITEMDRAW;
}
else if ( (CDDS_ITEMPREPAINT | CDDS_SUBITEM) == pLVCD->nmcd.dwDrawStage )
{
COLORREF clrNewTextColor, clrNewBkColor;
int nItem = static_cast<int>( pLVCD->nmcd.dwItemSpec );
CString strTemp;
if(http_list == 1)
strTemp = Obj_Http->m_Main_List.GetItemText(nItem,pLVCD->iSubItem);
else if(smtp_list == 1)
strTemp = obj_SmtpNew->m_SmtpList.GetItemText(nItem,pLVCD->iSubItem);
else
strTemp = Obj_SP->m_SP_List.GetItemText(nItem,pLVCD->iSubItem);
if(strTemp == "OFFLINE")
{
clrNewTextColor = RGB(0,0,0);
clrNewBkColor = RGB(255,0,0);
}
else if(strTemp == "ONLINE")
{
clrNewTextColor = RGB(0,0,0);
clrNewBkColor = RGB(0,255,0);
}
else
{
clrNewTextColor = RGB(0,0,0);
clrNewBkColor = RGB(255,255,255);
}
pLVCD->clrText = clrNewTextColor;
pLVCD->clrTextBk = clrNewBkColor;
*pResult = CDRF_DODEFAULT;
}
}
i want to merge these two piece of code but not getting the way...
How can i do this....
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I'm not sure I'm seeing your problem.
One section of code is using switch (lplvcd->nmcd.dwDrawStage) { case XXXX:, and the other is using if (lplvcd->nmcd.dwDrawStage == XXXX) else if... but that should hardly be a challenge.
So your last case statement gets bigger?
Another thought you could have...
Why not keep your code? If each works in clearly separated circumstances, try:
void CColoredListCtrl::OnCustomDraw ( NMHDR* pNMHDR, LRESULT* pResult )
{
if (Am_I_in_a_thread ())
OnCustomDrawThreaded (pNMHDR, pResult)
else
OnCustomDrawNotThreaded (pNMHDR, pResult)
}
and just rename your two functions!
Iain.
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Hi all,
I m taking help of this article for Coying file of Fileoperation.
http://www.codeproject.com/KB/shell/cshellfileop.aspx?msg=2655963#xx2655963xx[^]
But there is only one problem when i copy one file from one location to another if it is already exist than it not replace it,and create another copy.
How can i stop making no. of copies when file already exist.
I want the file is exist than it gives message for replacing and than replace the file.
Thanks in advance.
IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH
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Use FindFirstFile to check if the file is already existing at the desired location. If it exists display a message box with Yes/No buttons. If the user clicks yes, delete the file and then use CopyFile/SHFileOperation
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
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"_$h@nky_" wrote: But there is only one problem when i copy one file from one location to another if it is already exist than it not replace it,and create another copy.
Are you using the FOF_RENAMEONCOLLISION flag?
"_$h@nky_" wrote: I want the file is exist than it gives message for replacing and than replace the file.
Assuming you are just going to respond in the affirmative to that message, have you tried the FOF_NOCONFIRMATION flag?
"Love people and use things, not love things and use people." - Unknown
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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I'm starting a service that is dependent on a dll.
On doing so I get the below error
The procedure entry point XXXX could not be located in the dynamic link library LLLL.dll
The service and other related binaries are the release binaries while the dll that is copied is a debug one. I have also copied all the debug dependent dlls in the folder without avail.
Should the dll be also release to solve this problem.
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the only way a release build will fix it is if the release build exports different functions than the debug build does. that would be unusual, though not impossible.
but, i'd look at the DLL and see if it's actually exporting the missing function or not, first.
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Visual C 6 comes with a handy program called depends.exe. Use it and look at your executable, and it will look at dlls it depends on, and give you nice red exclamation makrs if there are problems.
I'd be shocked if later versions didn't come with an equivalent tool. I'd be surprised if they didn't come with the *same* tool. It works rather well.
Iain.
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Iain Clarke wrote: I'd be shocked if later versions didn't come with an equivalent tool.
Through 2005 it does. Although there is no Start menu entry for it and it's buried in folder structure under Program Files so using a Search is about the only way to find it. 
led mike
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If your DLL is using the debug version(s) of MFC and/or the CRT while the
other modules use the release version(s), you may have a problem there as well.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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A piece of code performs AES encryption in the CCM mode. I want to time the encryption time of different text size. I have tried to get the encryption time using 2 different methods. 1st I've timed the main function. 2nd, i've timed the different components separately (CBC encryption time + counter encryption time) and summing at the end to get the total encryption time.
the time difference between the 2 is huge for the same 16 bytes of data. 1st method, time is 0.000293 seconds while 2nd method, time is 12.0055 seconds .
this piece of code is used to calculate time:
sec_init();
start_time = sec();
enctime = (stop_time - start_time);
cout<<endl;
printf("enctime : ");
printf("%lf ", enctime);
cout<<endl;
Can some1 please look into that and tell me where should i put the timer to get the time the program takes to encrypt the data. Tks.
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I don't see any point in timing the individual methods, unless you can do something with them individually. If (eg) it takes a long time to connect / initialise the encryption engine (imagine loading a COM component) then maybe that time dominates if you are only encrypting one thing.
But if you are doing thousands of encryption tasks, then that actual encryption stage would dominate.
So, you won't get many meaningful answers from here without knowing more about what you are wanting to measure.
I also don't recognise sec_init () and sec(), so I have no idea if they're useful or not.
Iain.
Plz sir... CPallini CPallini abuz drugz, plz plz help urgent.
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Well the timer codes works without problem.
In fact in AES CCM, it first perform the CBC MAC step to get a tag from the plaintext and then in the counter(CTR) mode, it encrypts the plaintext and the tag to get the ciphertext.
The idea is to find out the time taken to encrypt 16 bytes of data(a block) and then I'll vary the block size to get the different encryption times.
What is bothering me is that I don't know whether to place the timer code in main()to get the encryption time or to time the CBC step and the CTR step separately and add them to get the encryption time.
Feel free if you need more info.
BTW, Is there a way to attach the cpp code?
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One problem I can see is that one iteration of your work will be so fast that errors in timing (eg GetTickCount used to have a 19ms resolution) will swamp the times you are measuring.
If you put your code in a loop and run it 1000 times, get a time, divide by 1000 and you have a far more reliable figure. By doing a larger sample size, your timings for the two methods should converge, and your question becomes irrelevant.
My knowledge of encryption is at the hand waving stage, so I'm actively avoiding the fine detail of your application.
I don't think you can attach a file to your post - but you can cut and paste in between pre tags.
Iain.
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