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It only works on the very first mouse click for the first root node only. Decendent nodes nor any of the other root nodes have any effect on the OnNotify.
After the first mouse click to either select / deselect the 1st root node, that root node then behaves like the other root nodes.
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Do you call SetCheck anywhere? How do the items get their check state set?
What's happening in your SetDecendentNodes functions?
Have you put a breakpoint in the OnNotify? Are you getting
notifications for all item selections?
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://www.codeproject.com/script/Forums/Images/coffee.gif)
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I do not call SetCheck.
The nodes get their check state set whenever the user clicks on the node's box to check or uncheck the node.
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Ohhh....
Maybe you want the TVN_ITEMCHANGED notification instead of TVN_SELCHANGED
BOOL CViewFilter::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
if (wParam == IDC_TREE1)
{
NMHDR *pHdr = (NMHDR *)lParam;
if (pHdr->code == TVN_ITEMCHANGED)
{
NMTVITEMCHANGE *pNMTVItemChange = (NMTVITEMCHANGE *)lParam;
if (pNMTVItemChange->hItem)
{
if (m_filterTreeCtrl.GetCheck(pNMTreeView->itemNew.hItem))
{
SetDecendentNodesOn(pNMTVItemChange->hItem);
}
else
{
SetDecendentNodesOff(pNMTVItemChange->hItem);
}
}
return TRUE;
}
}
return CDialog::OnNotify(wParam, lParam, pResult);
}
Mark Salsbery
Microsoft MVP - Visual C++
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Yeah, that was one I had tried using before but the problem is you need Windows Vista to use it. I'm running on XP Pro.
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Stuck At Zero wrote: the problem is you need Windows Vista to use it
There's other OSs?
Do you get any notification in XP when you check/uncheck an item?
If so, what is the code?
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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I really thought it was available on XP.
The macro is wrapped in "#if (_WIN32_IE >= 0x0600)"
which seems to indicate a common controls version 6
or better feature.
If you define _WIN32_IE to something >= 0x0600 does
it work on XP? I don't have a handy XP machine to test on.
Also, have you tried (in the debugger)to see if there's any
notification sent when you change the check state? I'm interested
in what notification code it is if there is one.
Mark Salsbery
Microsoft MVP - Visual C++
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I couldn't figure out how to filter out the other things OnNotify would trigger, but I believe part of my problem seems to be that the hItem is what the TreeView has as a keyboard highlighted region rather than the actual node clicked on by mouse.
Do you have any ideas as to change hItem to reflect what is actually clicked on by the mouse and thus ignore the keyboard rectangular region that highlights the 1st root node or changes if I use my keyboard to move it around?
In other words,
HTREEITEM hItem = m_filterTreeCtrl.GetSelectedItem();
Is not with respect to the node I click on with my mouse.
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Hi, I'm using VC++ with MFC.
I have a CScrollBar in my program which is supposed to perform various functions when it is moved.
How can I tell when the user has clicked on the scrollbar and moved it up and down? I thought it might just be EN_CHANGE but this does not seem to work.
I am setting up all of the scroll bar's parameters using SetScrollInfo, which does seem to work, but I cannot tell when the bar is moved and when it IS moved, it does not seem to "stick" at its new position, it just returns to the "nPos" that I initially set it to in SetScrollInfo.
KR
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In my application i am creating a dialog to create a new username and passowrd. i am saving the username ans password in a file. now i want to know how do i update my password with the help of a gui. now the format of the file is
harry pass_harry
what is the way to change the password?
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A better way would be to encrypt and store the password into a database. I am not sure how safe is it to store passwords along with username in a text file. 
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche
.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]
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Chandrasekharanp wrote: ...know how do i update my password with the help of a gui.
A file is a file whether you are using a GUI, a console, or a service.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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I just wanted to parse some data read into an CStringArray. The string to be parsed is got out of the array and is a CString type.
I have been trying to use strtok() to do this.
Typical string is "qwerty,123,,33,ABCD,,4545,"
I have another member variable (CString type array) to hold the parsed strings (as CString).
Typical string is "qwerty,123,,33,ABCD,,4545," sent to the GetDataItem procedure.
void CGenerate_FilesDlg::GetDataItem(CString str)
{
char *P1 = strtok((char*)(LPCTSTR)str, ",");
char *P2 = strtok(NULL, "\0");
}
I get error when trying to put the parsed data into m_ParseParams[]
Error 3 error C2664: 'void ATL::CStringT<BaseType,StringTraits>::Format(const wchar_t *,...)' : cannot convert parameter 1 from 'const char [3]' to 'const wchar_t *' c:\generate_filesdlg.cpp 225
I am having problems with the UNICODE.
Because I am using CStringArray I seem to be having problems using functions like strtok() in the VS 2005 environment.
What I am trying to do is so simple, but in a mess with types!
Andy.
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Most CRT string functions have a TCHAR.H generic string
type equivalent. Since CString is a generic string type
you should use generic string CRT functions.
Try _tcstok().
You may also want to look into using equivalent CStringT
methods instead of using CRT functions on CStrings.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Hi Mark, can you give me a few pointers as to use MFC C++ with UNICODE.
I was just using the following:-
CString str = _T("qwerty");
and then casting my way out of any problems.
I seem to have come unstuck.
Just need help with project options, header files and settings, if possible.
Many thanks,
Andy.
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Andy202 wrote: Just need help with project options, header files and settings, if possible.
What do you mean?  Either UNICODE is defined (via #define) or it isn't.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Andy202 wrote: project options, header files and settings
MFC already uses the Generic-Text Mappings[^] so there's
no additional header files to worry about.
You can use the Configuration Properties/General/Character Set
project setting to choose Unicode or MBCS.
Andy202 wrote: a few pointers as to use MFC C++ with UNICODE
Since MFC uses CString, I prefer to use CStrings for all my strings.
If a CRT string function is needed (because there's no equivalent functionality
in the CString class) then it's easiest to use generic-text Routine Mappings[^]
instead of using the char specific CRT string functions.
This keeps all the code buildable regardless of whether it's a
Unicode or MBCS build.
Andy202 wrote: casting my way out of any problems
If you use the generic text stuff described above, you shouldn't
(very rarely at least) need casts. If the compiler complains, it
may be that you need to convert a string to the type expected.
Just remember Cstrings are wchar_t-based on Unicode builds, otherwise
they are char-based. If you need to force a CString to a specific type
regardless of the build configuration, then use the specific CStringA
or CStringW type.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Given below is the error generated by vc6. It is related to memory leakage but the problem is that no file name/ line number is mentioned. how can i find/rectify the exact place of error?
First-chance exception in TestApp.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception.
Detected memory leaks!
The thread 0x3C0 has exited with code 0 (0x0).
The thread 0x3CC has exited with code 0 (0x0).
Dumping objects ->
The thread 0x660 has exited with code 0 (0x0).
{56984} normal block at 0x078ECFE0, 4 bytes long.
Data: < > 00 00 00 00
Object dump complete.
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By using your debugger.
EDIT: maybe I misunderstood your question. The problem is only the memory leak, not the exception ? Because it seems you have an exception in your code, so it would be usefull to fix it.
modified on Thursday, September 4, 2008 10:40 AM
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Cedric Moonen wrote: By using your debugger.
A very technically correct answer that ought to be useless, but if it turns out to be useful it becomes priceless.
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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Well, seeing his question, I don't see how I can give a more accurate answer 
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Cedric Moonen wrote: Well, seeing his question, I don't see how I can give a more accurate answer
Precisely, you're dead on, mate!
You got my 5'er for providing the most accurate answer I've seen today. 
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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