C / C++ / MFC

Re: Select individual subitem cell in CListCtrl

7-Mar-01 8:28

Hi all,

In a CListCtrl, is that the user can only select the ITEM ? Can the subitem in other column be selected individually too( only select the subitem )?? If can't, what should I use other than CListCtrl if I want to select cells horizontally ?

Please help! Thanks!

Vickie

l a u r e n7-Mar-01 10:23

l a u r e n

7-Mar-01 10:23

u could either look around for an enhanced version of the clistctrl that allows individual cells to be selected / edited or you could (as i said before) use a grid control (there's a very cool one here on codeproject)
Suspicious | :suss:

---
"every year we invent better idiot proof systems and every year they invent better idiots"

Re: Select individual subitem cell in CListCtrl

James R. Twine7-Mar-01 10:37

James R. Twine

7-Mar-01 10:37

> Hi all, In a CListCtrl, is that the user can only select the ITEM

   Yep.

> Can the subitem in other column be selected individually too( only select the subitem )??

   Not normally, no. (At least, not that *I* know of.)

> If can't, what should I use other than CListCtrl if I want to select cells horizontally ?

   There are various Grid and Grid-like controls out there that may give you this functionality.  On a previous Brokerage-related project, I needed this same functionality.  I ended up using the Custom Draw features of the ListView control to simulate it.

   Using Custom Draw, you can highlight a specific column in the control.  If you have some other way to keep track of the current "column selection", you can simulate column selection/highlighting.

   Peace!

-=- James.

error message again!!!!

Richard Cheng7-Mar-01 7:59

Richard Cheng

7-Mar-01 7:59

Does anyone know what these error messages mean? and how to fix this bug?

error LNK2001: unresolved external symbol "unsigned short __cdecl ABC_EventLk(unsigned long,unsigned long)" (?ABC_EventLk@@YAGKK@Z)

error LNK2001: unresolved external symbol "unsigned long hABC_Wnd" (?hABC_Wnd@@3KA)

fatal error LNK1120: 2 unresolved externals

************************************************************************************

I copy all related *.h and *.c files to my program's directory and add to my project list. However, still get the same messages

l a u r e n7-Mar-01 8:11

l a u r e n

7-Mar-01 8:11

is ABC_EventLk your function? where does it come from?

---
"every year we invent better idiot proof systems and every year they invent better idiots"

Richard Cheng7-Mar-01 8:32

Richard Cheng

7-Mar-01 8:32

My program is written by MFC programming. I want to use some old function from a file. This file was written by C language and it includes several *.h files....also.......

Christian Graus7-Mar-01 11:01

Christian Graus

7-Mar-01 11:01

Are these functions also included in your project ? If you did the first half of what I suggested ( make sure all the files are included ) then most probably the function in question is in a lib, and you've #included the headers, or you wouldn't compile, but VC doesn't know where the .lib file you need is. I suspect this is what lauren is also trying to figure out from your post.

Christian

The content of this post is not necessarily the opinion of my yadda yadda yadda.

To understand recursion, we must first understand recursion.

How to Catch Windows Events??

Erik Funkenbusch7-Mar-01 15:14

Erik Funkenbusch

7-Mar-01 15:14

Your problem is that you're including C header files in a C++ program.

C++ "mangles" the names of functions in order to support overloading and better type checking, and as long as the code is compiled by the C++ compiler, the compiler knows this and deals with it.

Your code is C code though, and does not include this mangling, thus the linker doesn't know how to deal with it.

If you can change the .h files yourself, then include this code at the very top of it:

#ifdef __cplusplus
extern "C" {
#endif

and this code at the very end of it:

#ifdef __cplusplus
} // extern "C"
#endif

This tells the compiler to treat everything within the curly brackets as C code rather than C++.

If you can't modify the header files (or don't think you should) then anywhere you #include the .h file put:

extern "C" {
#include "file.h";
}

Empty Property

derhackler7-Mar-01 7:45

derhackler

7-Mar-01 7:45

Bonjour again!

i've got another important question: how can i set a property in ADS to be empty? i tried it with an empty string, but it doesn't work.

benedikt

ADsUser - Addresses

derhackler7-Mar-01 7:43

derhackler

7-Mar-01 7:43

bonjour!

i've got the following problem: i'm connected to an ADsUser Interface and try to read the adresses. but the HRESULT of the property is always E_ADS_PROPERTY_NOT_FOUND. on the win2k server the adress properties are set, but except the PostalCodes i can't read them. what's wrong?

thnx

Re: ADsUser - Addresses

Erik Thompson7-Mar-01 8:19

Erik Thompson

7-Mar-01 8:19

derHackler,

This is correct. Properties vary in availabilty based on the provider you are using.
For example:

The WinNT:// provider gets you the user in active directory and allows you to set properties on the user such as first name, last name and etc. But if you try to set the email address you will get E_ADS_PROPERTY_NOT_FOUND. This is because the email address is not available through the winnt provider. You will need to get the user from the LDAP:// provider to be able to set the email.

Also, Make sure you are also using the correct attribute name as the provider is expecting.
http://msdn.microsoft.com/library/psdk/adsi/ds2pldap_3703.htm

Both providers use the ADsUser interface but provide different attribute features. Examine the AD Schema to determine which attributes are available from WinNT provider and LDAP provider for a User object.

http://msdn.microsoft.com/library/psdk/adsi/ds2pnt4_59wz.htm
http://msdn.microsoft.com/library/psdk/adsi/ds2pnt4_49mb.htm

Regards,
-Erik Thompson

Re: ADsUser - Addresses

derhackler7-Mar-01 8:31

derhackler

7-Mar-01 8:31

thanks for your answer. but the PostalAddresses property is supported on both providers (i use LDAP). you also get the E_ADS_PROPERTY_NOT_FOUND error when you try to get a value from a property which has no value yet. but i set the addresses value and so i don't know what's wrong.

TomK7-Mar-01 6:56

TomK

7-Mar-01 6:56

I'm looking for a trick to catch ALL messages and windows events in an application.

I've already used SetWindowsHookEx() with WH_CALLWNDPROC or WH_GETMESSAGE (in dll of course..) but the application doesn't catch events from others windows!!

HELP!!

Re: How to Catch Windows Events??

Masaaki Onishi7-Mar-01 15:43

Masaaki Onishi

7-Mar-01 15:43

Hello, the codegurus around the world. Roll eyes | :rolleyes:

Try to check CWinApp::ProcessMessageFilter(...) function.
Accroding as MSDN library,

ProcessMessageFilter is only called for messages that are posted to the message queue and is not called for messages that are send directly to the window procedure. Therefore, this function cannot be used to monitor messages that are sent (by "Windows" or by the user) to a dialog box, message box, menu, or a scroll bar.

So, it seems that only one function will not work for your requirement.
HTH? Confused | :confused:

Have a nice day!
-Masaaki Onishi-

Help with CRecordSet and Memo

7-Mar-01 6:25

CRecordset::Update() return insertion failed for CString<255 and >65535 char into Mémo(MS Access Database.Why?? I use MDAC 2.6 and ODBC with dynaset.
Please, help me! Confused | :confused:

Help with CRecordSet and Memo

7-Mar-01 6:24

CRecordset::Update() return inserion failed for CString<255 and >65535 char into Mémo(MS Access Database.Why?? I use MDAC 2.6 and ODBC with dynaset.
Please, help me! Confused | :confused:

CListCtrl OnItemchanged, loops 3 times??

Vickie7-Mar-01 4:54

7-Mar-01 4:54

Dear all,

I am encountering a problem in calling this CListCtrl function, OnItemchanged.
Whenever there is a change in selection, this functions will run 3 times!!!
And, for the first time, the string got is " ", but at the second time, it shows the right string, then it is " " again for the third time. Can I know how does it happen for running 3 times?

This is just a testing code. Actually I want to call another function whenever a selection is moved to another one, how can I do this if this function cannot work?

void CTable::OnItemchangedtable(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;

POSITION pos = m_table.GetFirstSelectedItemPosition();
int i = m_table.GetNextSelectedItem( pos );
CString cs = m_table.GetItemText(i, 0);
AfxMessageBox( cs);

*pResult = 0;
}

Thank you very much !!!

Regards,
Vickie

l a u r e n7-Mar-01 6:32

l a u r e n

7-Mar-01 6:32

why dont u use the NM_CLICK message instead?

---
"every year we invent better idiot proof systems and every year they invent better idiots"

Vickie7-Mar-01 6:38

7-Mar-01 6:38

Since my tools is for the Blind, can't use Mouse but only keyboard, i.e. up, down arrow or short-cut key instead.

Chris Meech7-Mar-01 7:43

Chris Meech

7-Mar-01 7:43

I can't remember why there are 3 calls, but the first is to indicate that an item state is changing, selection state is being removed and the third is to indicate that an item state is changing, selection state is being set. I'm guessing that the second call is to provide access to the string and possibly change it prior to it being selected. Check further and I think you will find that the item for the first call is not the same item as the item for the subsequent second and third call.

Add the pNMListView pointer to the watch window and look at each of the member variables change for each of the three calls to the method. That might aid in your understanding of what is happening.

Vickie7-Mar-01 7:56