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Are you trying to ensure that a previously-selected item is visible the next time your application runs?
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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No, my listctrl is a reflection of an internal list. When I update the listctrl I clear it first and just add the items that are in the list. Any data updates are performed on the internal list.
I hope to only update the modifed items in the future, but for now, I am clearing the listctrl. And that's why I need the restore the scroll position.
I'm currently trying to use the item height times the top item's index that I store, and I pass that to Scroll() in the CSize() parameter.
-- modified at 15:00 Thursday 7th December, 2006
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//Store the top item position
topItemIndex = listControl->GetTopIndex();
...
//Scroll window back to original position, assuming starting at 0
if (listControl->GetItemCount() > 0) {
CRect itemRect;
listControl->GetItemRect(0, itemRect, LVIR_LABEL);
int x = 0;
x = listControl->Scroll(CSize(0, topItemIndex * itemRect.Height()));
_ASSERT(x != 0);
}
This seems to work except after to item 500+ it will scroll too far up or all the way to the beginning.
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Anyone know if there is limit as to how many Scroll() can scroll?
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Can't you use SetTopIndex() instead?
- S
50 cups of coffee and you know it's on!
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Don't see a SetTopIndex() for CListCtrl
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Ooops, thought you we're using CListBox. Never mind....
- S
50 cups of coffee and you know it's on!
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I think EnsureVisible() could work for you. Save the top index using GetTopIndex, then use EnsureVisible( nTopIndex, FALSE ) to scroll it into view.
- S
50 cups of coffee and you know it's on!
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Bless you!
It only scrolls until the index is visible on the bottom, so I add the value from GetCountPerPage() minus one:
...
result = listControl->EnsureVisible(
topItemIndex + listControl->GetCountPerPage() - 1,
FALSE);
_ASSERT(result = TRUE);
...
Seems to work, even on 1000+ items.
Hopefully I'll get the time to rewrite to where only modified items will be updated... 
-- modified at 10:41 Friday 8th December, 2006
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Hi,
I wanted to ask a very simple question. Okay I am reading this article on video conferencing(http://www.codeproject.com/internet/videonet.asp[^]), I was wondering is there anyway I could integrate this into like a C# container. I am creating a eLearning system in C#, but I am forced to use C++ for video conferencing since the encoder has not been ported from C++ to C#. So is it possible for me to create the eLearning system in C# and just add video conferencing facility via c++. Thanks
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Absolutely. One approach is to use C++/CLI. You can find all sorts of information on MSDN and here at CP. There is even a specific Code Project Forum for C++/CLI[^]
led mike
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Revant Jain wrote:
So is it possible for me to create the eLearning system in C# and just add video conferencing facility via c++. Thanks
COM/ATL would be good start
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and you
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Hi all,
I am operating a Tab to Move the Controls in the Dialog, how can i detected that the Control is got Focused when i am using a Tab Control.
Example:
i am having three controls in a Dialog, i am pressing a Tab in the Key Board then the Cursor moves to all the Controls, here how can i detect that the Control have moved to the Third Control.
Any Ideas with GetFocus(...) Api,
Please help me out.
Uday kiran
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Handle the WM_KEYDOWN event and check if its the tab key.
Nobody can give you wiser advice than yourself. - Cicero
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uday kiran janaswamy wrote: ...how can i detect that the Control have moved to the Third Control.
Any Ideas with GetFocus(...) Api,
if (GetFocus() == GetDlgItem(hDlg, IDD_THIRD_CONTROL))
...
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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Hi David,
I am very Much Thankfull to give a great idea, Thanks a Lot.
Uday kiran
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Hello,
I wanted to start learning WIN32API. Now before that could anyone pls recommend me a good C book. I am familiar with basics of C. If I read a C++ book, would that make a difference?
Thank you
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All new programs should be written using C++, so you should learn it first. You should learn C just to be able to read other people's code.
It is better to learn C++ first without learning Windows programming. Then when you are familiar with C++ learn Windows programming.
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I don't need to start.
Perhaps you meant to reply to Revant Jain, the person asking the question.
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Sam Hobbs wrote:
t is better to learn C++ first without learning Windows programming. Then when you are familiar with C++ learn Windows programming.
good!
<div class='ForumSig'>"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers, Alok Gupta VC Forum Q&A :- I/ IV Support CRY- Child Relief and you </div>
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I want to know its my problem or no,did you change your sig ?
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Forget to turn HTML oN ... how are you HAMID.. sorry belated hAPPY EID
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and you
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Thanks after two hard weeks today is holiday with a cloudy weather,by the way How are you? tommarow is holiday for you 
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