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eusto wrote: Well..for the server part there is only LightOpc
No...you can donwload the sample code for both server and client (either in VC++ or VB) from Metadynamics website ..check the link posted above for the toolkits.
"Every morning I go through Forbes list of 40 richest people in the world. If my name is not in there, I go to work..!!!"
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Okay so I created a dialog box with a List Control in it. I am trying to
get the index of the current item selected in order to retrieve the text and
use it in a map. I found examples here but for some reason I am not getting
an index number back. All I get is 0.
Heres the code:
<br />
std::map<std::string, int>mpCalibrations;<br />
<br />
********<br />
<br />
for(i=0;i<=74;i++){<br />
LvItem.iItem=i;<br />
LvItem.iSubItem=1;<br />
sprintf(Temp,"%d",mpCalibrations[calibrate_list[i]]);<br />
LvItem.pszText=Temp;<br />
SendMessage(hList,LVM_SETITEM,0,(LPARAM)&LvItem); <br />
<br />
<br />
case WM_NOTIFY:{<br />
switch(LOWORD(wParam)){<br />
case IDC_LIST2:{<br />
int iSlected=0;<br />
int lResult=0;<br />
if(((LPNMHDR)lParam)->code == NM_CLICK){<br />
iSlected=SendMessage(hList,LVM_GETNEXTITEM,-1,LVNI_FOCUSED);<br />
Please help..
TY
-- modified at 13:47 Tuesday 7th March, 2006
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How about:
int nItem = SendMessage(hList, LVM_GETNEXTITEM, -1, LVNI_SELECTED);
assert(nItem >= 0);
LVITEM lvi = {0};
char szTemp[128];
lvi.mask = LVIF_TEXT;
lvi.pszText = szTemp;
lvi.cchTextMax = sizeof(szTemp);
SendMessage(hList, LVM_GETITEMTEXT, nItem, (LPARAM) &lvi);
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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Well, I still got a 0 back for nItem. I cannot see what the problem is.
Any other ideas???
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At the time this code is executed, is there a selected item in the control?
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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In debug mode(.NET), the value remains 0. Furthermore, I initialized the
value to 5 and it is being SET to 0. The final app, will allow you to select
an item and via the map, display the corresponding value in an EditBox for
modifying. I added this code to confirm that I'm getting 0 no matter what
I select.
The map is filled w/ random numbers for now.
<br />
if(((LPNMHDR)lParam)->code == NM_CLICK){<br />
int nItem = SendMessage(hList, <br />
LVM_GETNEXTITEM, <br />
-1, <br />
LVNI_SELECTED);<br />
SendMessage(hList, <br />
LVM_GETITEMTEXT, <br />
nItem, <br />
(LPARAM) &lvi);:confused:<br />
itoa(nItem,buffer,4);<br />
SetWindowText(hwndEdit,buffer);<br />
}
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When you click a button to execute this code snippet, the list control will lose focus, and perhaps deselect any items that had been selected. Does the control have the LVS_SHOWSELALWAYS style?
What does this return:
int nCount = SendMessage(hList, LVM_GETSELECTEDCOUNT, 0, 0); Remember that items in the control are 0-based.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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Getting back 0 from LVM_GETNEXTITEM is a valid return, not an error return; -1 is an error return (or "not items found"). Getting back 0 indicates that the first (zero-ith) item in the control is selected.
Calling SendMessage again with the same parameters will return zero again because you are still specifying -1 for the "start" of the search.
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
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A bit more code:
<br />
case WM_INITDIALOG:{<br />
HWND hList=GetDlgItem(hwnd,IDC_LIST2);<br />
SendMessage(hList,<br />
LVM_SETEXTENDEDLISTVIEWSTYLE,<br />
0,<br />
LVS_EX_FULLROWSELECT | LVS_SHOWSELALWAYS); <br />
Well David, I tried this snippet and a big fat 0.  I initialized it to 500.
<br />
nCount = SendMessage(hList, LVM_GETSELECTEDCOUNT, 0, 0);<br />
itoa(nCount,buffer,10);<br />
SetWindowText(hwndEdit,buffer);<br />
James, my understanding is the above "SendMessage" will return the index
of the item selected. I'm selecting in the middle of my 75 item list.
Shouldn't it return a value the same as "GETCURSEL" does for a listbox???
This was so easy with a regular ListBox.(ughhhh)
I'm probably gonna be beating my head against the wall once the solution is
discovered. Something simple I'm sure...
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What are they? Any good tutorial about it?
Regards [[]]
hint_54
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I am super stuck and very frustrated. I have a simple date time control.
If I put in a date from 1970 on, everything works fine. If I put in a
date that is less than or includes 1969, the program crashes at the bottom
on the ASSERT line which is the last line of this code:
CTime::CTime(int nYear, int nMonth, int nDay, int nHour, int nMin, int nSec,
int nDST)
{
struct tm atm;
atm.tm_sec = nSec;
atm.tm_min = nMin;
atm.tm_hour = nHour;
ASSERT(nDay >= 1 && nDay <= 31);
atm.tm_mday = nDay;
ASSERT(nMonth >= 1 && nMonth <= 12);
atm.tm_mon = nMonth - 1; // tm_mon is 0 based
ASSERT(nYear >= 1900);
atm.tm_year = nYear - 1900; // tm_year is 1900 based
atm.tm_isdst = nDST;
m_time = mktime(&atm);
ASSERT(m_time != -1); // indicates an illegal input time
}
Looking at the call stack, the input is:
CTime::CTime(int 1960, int 6, int 3, int 0, int 0, int 0, int -1)
I tried changing the nDST to 0 or 1 and that doesnt stop the error from
coming.
Any ideas? Any chance I can email someone a small sample project that
keeps displaying this error?
Please, any response any one can give me will be greatly appreciated.
Sincerely,
Danielle Brina (an overworked graduate student)
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DanYELL wrote: If I put in a
date that is less than or includes 1969, the program crashes at the bottom
on the ASSERT...
A crash is vastly different than an assertion. You canot use a value any earlier than midnight, January 1970.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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Its an assertion error in the timecore.cpp file (line 40). I did
alittle more research on the web and found:
// If timeptr references a date before midnight,
// January 1, 1970, or if the calendar time cannot be
// represented, mktime returns –1 cast to type time_t.
I cant believe I cant use a value earlier than 1970. Isnt there a
work around somehow? Im trying to prompt for the persons date of
birth which in this case is in the 1960's. Is there any way to use
a date before 1970?
Please, any response any one can give me will be greatly appreciated.
Sincerely,
Danielle Brina (an overworked graduate student)
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Use COleDateTime instead of CTime.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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Wow! It worked. I dont know what I was thinking of using
CTime.
Thank you very much for you responses.
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time_t can't represent dates before midnight Jan 1 1970 because that is the date where time_t starts counting from. As the other replies said, you'll need to use a time type that doesn't have that restriction.
--Mike--
Visual C++ MVP 
LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ
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Michael Dunn wrote: time_t can't represent dates before midnight Jan 1 1970
And it cannot represent time after January 19 2038. This is where time_t reaches it's max limit.
Nibu thomas
Software Developer
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CALL <JMP.&DllDemo.ExpFun><br />
PUSH 0<br />
MOV DWORD PTR DS:[40997C],EAX<br />
MOV ECX,DWORD PTR DS:[EAX]<br />
PUSH 0<br />
PUSH 0<br />
PUSH 0<br />
CALL DWORD PTR DS:[ECX+4]<br />
ADD ESP,10
int ExpFun()
{
return 0;
}
int fun1(...)
{
...
}
how to write the fun1 declare and the ExpFun return value? the return value will confirm fun1 address (CALL DWORD PTR DS:[ECX+4] -> call fun1)
thanks. ![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
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I do not see it at the top anymore...?
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
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James R. Twine wrote: I do not see it at the top anymore...?
Peace!
Change your "Messages since" option appropriately. I think there was a server reset or something, because for me, it went back to "Last month's posts" for all the forums.
Regards,
Nish
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It is appearing now - I have changed nothing! 
Peace!
-=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)
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For me, it only appears after I have posted something.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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what is private & static function in MFC.
how it can be used in Visual C++.
what i need to do if i want to used the same filename in every block of programming like:
CMyPsmDlg::OnButtonBrowse()
{
//i get a filename using GetFileName()
}
CMyPsmDlg::OnButtonEncrypt()
{
//i want to use the same filename in above blok of function
}
HelpMe
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private and static are C++ concepts, and nothing to do with MFC per se. You need to get a good C++ book and figure out some of this basic stuff before working with MFC. The following URL is a good place to begin : http://www.parashift.com/c++-faq-lite/[^]
Regards,
Nish
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