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Hi,
I'm chasing some code that will let me insert splitter panes dynamically. For example I want to start with 2 rows, and then add extra ones when required. Any ideas?
Thanks
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Look for CSplitterWnd in MSDN. There are methods like SplitRow() and DeleteRow() that can do the work for you 
Philip Patrick
"Two beer or not two beer?" <shakesbeer>
Web-site: www.saintopatrick.com
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This is really fundamental, but no matter how i tried, I can't create modeless dialogs. I used Create and ShowWindow as stated in books but my dialog remained modal.
if (resultsdlg != NULL)
resultsdlg->SetFocus();
else
{
resultsdlg = new CResultsDialog;
resultsdlg->Create(IDD_RESULTS);
resultsdlg->ShowWindow(SW_SHOW);
}
And in the .rc file, my dialog style is:
WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
I've tried with DS_MODALFRAME, WS_CHILD, and many other combinations, but none worked. Please help!
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I tend to put the create and showwindow calls in the constuctor, it makes the code much nicer. I also always specify this as the parent, you never know when you'll want to know who the parent is.
Have you traced to see this code is being called ? Initialised resultsdlg to NULL ?
Christian
I have come to clean zee pooollll. - Michael Martin Dec 30, 2001
Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now
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Yes, I've initialised resultsdlg to NULL and tried Create(IDD_RESULTS, this) too.
I noticed that the dialog generated is not actually modal, in that I can still access the main application. In fact, it's more like the dialog became 'Always On Top'and when I minimised it, it doesn't go into the taskbar. Strange behaviour! 
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Btw, I initially remove the ID_OK and ID_CANCEL cos I dun need them. Could this lead to the problem?
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Are you sure it is modal? The code looks ok. Maybe you think that it is modal cause you don't see it in the task bar?
Anyway, try to give the parent to your dialog, for example the Desktop as parent (CWnd::GetDesktopWindow())
Philip Patrick
"Two beer or not two beer?" <shakesbeer>
Web-site: www.saintopatrick.com
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Interesting, using the desktop as the parent works. But that leads to another problem, how do I access my document data from the dialog? This dialog is a protected member of my MainFrame btw.
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Depends on what your dialog is doing. You can pass a pointer to CDocument or CView, and access the document's methods and variables, or you can even pass a pointer of CMainFrame to it and enumerate the open documents...
Another way to use messages (SendMessage() and PostMessage()) to pass data between your frame-view-dialog.
As I said depends on what you want it to do 
Philip Patrick
"Two beer or not two beer?" <shakesbeer>
Web-site: www.saintopatrick.com
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Thanks, you've been most helpful. I managed to do it using messages 
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Hi,
i have placed a list box in my dialog, and i want to add strings to that list box. when i try to send the message LB_ADDSTRING using the SendMessage function, its showing me an error that the handle to the control is invalid. How do u get the handle to a control in the dialogbox, if the control id is know, as well as the dialog id.
Can anyone help me. I'm doing the program in SDK.
Vini
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Hi,
there are at least 2 ways to solve your problem:
Assume
o hWndDialog is the Window-handle of your dialog
o IDC_LISTBOX is the Id of the ListBox
o pszStringToAdd is a pointer to the string you want to add
1) You could use GetDlgItem() like this
HWND hWndListBox = GetDlgItem(hWndDialog,IDC_LISTBOX);
if(hWndListBox)
{
// Found the Window-handle of the ListBox
SendMessage(hWndListBox,LB_ADDSTRING,0,(LPARAM)pszStringToAdd);
}
else
{
// Didn't found the Window-handle of the ListBox. Deal with the Error
...
}
2) alternatively, you could use SendDlgItemMessage() like this:
SendDlgItemMessage(hWndDialog,IDC_LISTBOX,LB_ADDSTRING,0,(LPARAM)pszStringToAdd);
HTH
Cheers,
Pierre Heler-Caruel
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Guess I should have previewed my last message, the #includes did not come through and the desired format is not as I typed it. Guess this is just the way things are going today
Beginning Student Programmer
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Edit your post and check the "Display this message as-is" checkbox. You might also check out the VC forum FAQ (link at the top of this page), which answers this question and many others.
--Mike--
My really out-of-date homepage
Buffy's on. Gotta go, bye!
Sonork - 100.10414 AcidHelm
Big fan of Alyson Hannigan.
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I am having trouble using setprecision(), setw(), fixed, right, left,..etc... funtions for formatting output.
I want to have a number on top of another number on top of the answer all inline with eachother on the right regardless of the length of each number.
Example of desired output:
234
x 678
------
158652
However, this is what I am getting:
234
x 678
------
158652
with this code:
#include<stdio.h>
#include<iostream>
#include<iomanip.h>
void main()
{
int a, b;
int Answer = 0;
cout << "\nEnter a three digit integer: ";
cin >> a;
cout << "Enter a second three digit integer: ";
cin >> b;
Answer = a * b;
cout << setiosflags(ios::right) << a << endl;
cout << setiosflags(ios::right) << "x " << b << endl;
cout << setiosflags(ios::right) << "------\n";
cout << setiosflags(ios::right) << Answer << endl;
}
This code seems inefficient and is not giving good results. I would be greatful for any suggestions anyone may have.
Beginning Student Programmer
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Performancewise, is it better to pass by reference or pass by pointer if applicable?
Thanks,
Kuphryn
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It makes no difference.
Christian
I have come to clean zee pooollll. - Michael Martin Dec 30, 2001
Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now
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There is a difference if the function needs to change the pointer
It cant do that to a reference
Nish
Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut
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True, but that's not what was asked, now was it ?
Christian
I have come to clean zee pooollll. - Michael Martin Dec 30, 2001
Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now
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Hmmm. You answer only to what is asked eh?
I am reminded of a joke.
It's a phone call
A: Hello.
B: Hello.
A: Can I speak to George?
B: No
A: Huh? I want to speak to George
B: Maybe, but you cannot
A: I insist. Gimme George now.
B: I cannot
A: Why not????????
B: George is not home
A: Sh*t
Nish
Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut
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If the function modifies the pointer then pass it as a pointer, because references will be treated as const pointers [or am I wrong?] if they are a reference to a stack variable.
Nish
Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut
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sheesh!
I was being stupid.
Pass a pointer if the function needs to change the pointer.
It cannot change a reference variable's address
Nish
Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut
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When passing user defined types, using references can improve performance. For builtin types it doesn't matter which way you do it.
Vimal
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Thanks. That really reminds me of Deitel & Deitel C++ How to Program's performance tips.
Kuphryn
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