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I think its a tribute to The Code Project members that I an absolute beginner can get any help at all. Thank you
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Hello,
I am trying to use this control in a toolbar. For the most part the code works. However, I am running into this odd problem that I am getting partial text back when I call GetText.
The app requires that when I click a different button in the toolbar, I check the combo box and retrieve the text from it for processing. That is when this bug surfaces. The last character is getting truncated. If I retrieve the text in response to the Enter key handler for the combo box, I get the full text using the same GetText call.
Here is the code...most all of it is lifted from the samples.
CObList listButtons;
if (CMFCToolBar::GetCommandButtons(ID_EDT_FIND_NDC, listButtons) > 0)
{
for (POSITION posCombo = listButtons.GetHeadPosition();
pSrcCombo == NULL && posCombo != NULL; )
{
CMFCToolBarComboBoxButton* pCombo = DYNAMIC_DOWNCAST(CMFCToolBarComboBoxButton, listButtons.GetNext(posCombo));
if (pCombo != NULL) pSrcCombo = pCombo;
}
}
if (pSrcCombo != NULL)
{
ASSERT_VALID(pSrcCombo);
LPCTSTR lpszSelItem = pSrcCombo->GetText();
...
}
So if the combo box has the text '1234567890', I am getting back '123456789' in one case, and '1234567890' in another case, depending on whether I press the other button or press the Enter key.
Has anyone encountered this, and can someone suggest a solution?
Thanks for your time.
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I just encountered the same problem here!
No solution so far.
It is so frustrating to work with this feature pack...
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Yes, I finally got frustrated enough to think up alternatives. I had already coded to find the CMFCToolbarComboBoxButton object (Code from MSDN actually), so now I went ahead and code along the following lines:
if (pSrcCombo != NULL)
{
ASSERT_VALID(pSrcCombo);
CMFCToolBarComboBoxEdit *pEdit = (CMFCToolBarComboBoxEdit *) pSrcCombo->GetEditCtrl();
if (pEdit)
{
CString strSelItem=_T("");
pEdit->GetWindowText (strSelItem);
pSrcCombo->AddItem (strSelItem);
...
}
}
Using the Edit Control seems to have solved the problem for me. At the MFCToolbarComboBoxButton level, there is no option for a fix that I have found. Perhaps subclassing the control and intercepting the GetText() call may work, but I have not tried it.
modified on Tuesday, October 20, 2009 4:07 PM
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At least this works for me:
In the Code, where a character is truncated replace the call to pSrcCombo->GetText() with something like this:
CComboBox* a_pComboBox(pSrcCombo->GetComboBox());
ASSERT(a_pComboBox);
CString a_strAddressTextInCombo;
a_pComboBox->GetWindowText(a_strAddressTextInCombo);
Maybe in your code you have to distinguish somehow where the call comes from...
Or you could try if the above code works for both scenarios.
Hope I could help,
Patrik
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Yes, a code sample in the MSDN website gives details on how to identify the control that you are using.
CMFCToolBarComboBoxButton* pSrcCombo = NULL;
CObList listButtons;
if (CMFCToolBar::GetCommandButtons(ID_EDT_FIND_NDC, listButtons) > 0)
{
for (POSITION posCombo = listButtons.GetHeadPosition();
pSrcCombo == NULL && posCombo != NULL;)
{
CMFCToolBarComboBoxButton* pCombo = DYNAMIC_DOWNCAST(CMFCToolBarComboBoxButton, listButtons.GetNext(posCombo));
if (pCombo != NULL && CMFCToolBar::IsLastCommandFromButton(pCombo))
{
pSrcCombo = pCombo;
}
}
}
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My problem is similar to the one described here:
http://www-01.ibm.com/support/docview.wss?rs=1079&context=SS2KS6&dc=DB520&uid=swg21230924
In our application we have DLL that is used to write information to Event
Log. Problem is when I need uninstall/upgrade our application this DLL is
often locked after our application is shut down and it requires computer reboot which is undesirable.
For what it's worth - our application is a service. All other .DLL/.EXE files are successfully deleted by uninstall after service is stopped. Or they can be deleted manually if service is stopped.
I know there is a way to unlock/delete this file because this is what
Unlocker application does (http://ccollomb.free.fr/unlocker/)
Does anyone have any ideas on how this is achieved using Windows API?
modified on Friday, September 11, 2009 11:30 AM
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JoeSchmoe007 wrote: Does anyone have any ideas on how this is achieved using Windows API?
How about shutting down your application?
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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File is still locked after application is shut down. I edited original post to reflect that. For what it's worth - our application is a service.
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JoeSchmoe007 wrote: File is still locked after application is shut down.
Then some other process is using it, or your application is still running.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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You can use Process Explorer (run it without installation wrom live sysinternals site[^]) to find out which process is holding your file.
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There is a way to forcibly close handles - because Process Explorer can do it.
However, in this situation, you should use MoveFileEx[^] with the MOVEFILE_DELAY_UNTIL_REBOOT flag and a NULL destination filename and Windows will perform the file deletion at the next boot time, before any applications have started to lock the file.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Just close the handle remotely (classic and official method, Win32 (news://comp.os.ms-windows.programmer.win32) since 90's..)
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Hmm guys,is it possible to display number1+ number2+number3?
Eg,if a program prompts a user to input 3 numbers,N1,N2 and N3,is it possible for the program to display N1+N2+N3?As far as i know,we can use a while loop to straight away give us the final answer for N1+N2+N3.
To make it clear,if i input 5 as N1,10 as N2 and 15 as N3,can we make the program display
"total=5+10+15=30" instead of "total=30"?
Can someone guide me on this. xD
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UKM_Student wrote: As far as i know,we can use a while loop to straight away give us the final answer for N1+N2+N3.
That would be the wrong thing to use.
UKM_Student wrote: To make it clear,if i input 5 as N1,10 as N2 and 15 as N3,can we make the program display
"total=5+10+15=30" instead of "total=30"?
See here.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Erm yeah that was a response to my earlier question,what about this one 
This question is asking whether can we display the value(s) we take and then adding them up instead of getting a final answer right away o-o
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UKM_Student wrote: Erm yeah that was a response to my earlier question,what about this one
The same response applies. You can have multiple values for a single cout statement.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Erm im not trying to display exactly the numbers lol.Go see the program i wrote in the other page xD
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why is it wrong?For eg.
#include<iostream>
using namespace std;
int main()
{
int total=0,count=0,number;
while(count<5)
{
cout<<"Input 5 numbers.";
cin>>number;
total=total+number;
count++;
}
cout<<"Total is "<<total<<endl;
return 0;
}
From here we can see that the compiler adds up all the 5 numbers.My question is how should i put it so it would display" total: N1+N2+N3+N4+N5=XX "instead of adding all the numbers up then display "total:XX"
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UKM_Student wrote: why is it wrong?
Because you wanted to use a while() loop to sum N1, N2, and N3. Given:
int N1, N2, N3;
while ()
{
}How would that work?
UKM_Student wrote: cout<<"Input 5 numbers.";
This should probably go outside the while() loop.
UKM_Student wrote: My question is how should i put it so it would display" total: N1+N2+N3+N4+N5=XX "instead of adding all the numbers up then display "total:XX"
Given that you are not saving number each time through the loop, you can't.
Consider:
int count = 0, number[5];
while (count < 5)
{
cin >> number[count];
total += number[count];
count++;
}
cout << endl << "total: ";
count = 0;
while (count < 5)
{
cout << number[count];
if (count < 4)
cout << '+';
}
cout << '=' << total;
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Erm i tried running ur program but it was an infinite loop o.o
and whats the meaning of number[5]?I don't think that part is yet of my lvl(i just started C++ for less than 2 months :P)
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See my last answer to your previous question. You really need to study the C language further in order to understand some of the answers given here. Most of the people providing answers here are assuming that you have a basic knowledge of all C language constructs; your supplementary questions make it clear that you have not.
This is not a criticism of you (we all had to start somewhere), rather advice on how to get to the place you want to be.
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Well,i just started learning it in less than 2 months,ie about 8 hours of C++ programming only and the lecturer already gave us such homework,so...
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UKM_Student wrote: so...
So if he's any good at his job he has taught you all you need to know to solve the problem you have been given. Maybe you need to read through your notes again, to refresh your memory of the bits you have been studying. As my mentor 'Big John' was fond of repeating ad nauseam: "practice, practice, practice".
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yeah and that's what i i'm doing
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