C / C++ / MFC

Immediate Display of Edit Box

10-Feb-06 9:19

RobJones wrote:
I am trying to catch a LVIS_STATEIMAGEMASK change in OnLvnItemchanged and I don't want to catch the initial population of the list.

One way around this is to set a flag variable to true before populating the list, and then set it to false after populating the list. Then in the OnLvnItemchanged() method, don't do anything if the flag variable is equal to true. Make sense?

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Re: CListView question

RobJones10-Feb-06 9:27

RobJones

10-Feb-06 9:27

Yeah I'll have to set it up that way... I guess I was just wondering if it was possible to set the lvi to a checked state before inserting it into the control. Guess not.

Thanks for your help!
Rob

Whoever said nothing's impossible never tried slamming a revolving door!

jon_fallon10-Feb-06 8:19

jon_fallon

10-Feb-06 8:19

An edit box is being used for displaying the status of loop iterations. It uses the following approach:

ebptr->SetWindowText(s);
UpdateWindow(FALSE);

How can one get the updated edit box text to display before continuing?

Thanks in advance.

-jon

Re: Immediate Display of Edit Box

David Crow10-Feb-06 9:22

Re: Immediate Display of Edit Box

10-Feb-06 9:22

Even though a WM_PAINT message was sent to the window's queue, it won't get processed because the loop is not yielding control of the CPU.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

PJ Arends10-Feb-06 9:59

PJ Arends

10-Feb-06 9:59

Use RedrawWindow() specifing the RDW_UPDATENOW flag to force a WM_PAINT message to be sent to the window.

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Re: Immediate Display of Edit Box

jon_fallon10-Feb-06 10:04

jon_fallon

10-Feb-06 10:04

That did it! Thanks.

CRecordset ? DoFieldExchange ??

zinc_z10-Feb-06 8:17

10-Feb-06 8:17

Hi ,

I am having problem when I assign a string more than 255 characters to a CRecordset memeber like

(m_Result is a CString)
Res->m_Result=str1; (str1 is more than 255 characters)
UpDate();

and I get a exception "Debug Assertion Failed , DBFRX line 287 ".

Is there any other way of setting string more than 255 characters using CRecordset->Update() ???

Thanks,
ZINC

David Crow10-Feb-06 9:26

10-Feb-06 9:26

What type/size of field in your table is m_Result tied to?

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

zinc_z11-Feb-06 15:05

11-Feb-06 15:05

its a ACCESS table and field is of ntext type

David Crow13-Feb-06 8:17

13-Feb-06 8:17

zinc_z wrote:
...and field is of ntext type

Not sure how 'ntext' compares to 'text' but how large is the field?

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

zinc_z15-Feb-06 3:26

15-Feb-06 3:26

its of CString type

David Crow15-Feb-06 3:31

15-Feb-06 3:31

You have already indicated that m_Result is a CString object. My question was about the field in the database.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

zinc_z15-Feb-06 22:48

15-Feb-06 22:48

m_Result is bound to of ntext(length 16) type field in SQL Server . I have tried to change the field to varchar (length 700) but no diff. I still got the same exception.

any other sugestions ?

Regards,
ZINC

string problem???

#hackC++10-Feb-06 7:50

#hackC++

10-Feb-06 7:50

When i enter the words rents and will the program will say "will is larger than rents" which is wrong. I can't figure out why it's doing that. I supplied the code below (might have forgot little things like ; or ,). If anyone can tell me what is wrong it would help me a lot. I'm new to C++ programming.

#include <iostream>
#include <string>
using namespace std;

int main()
{
string a, b;

cout << "Enter two words." << endl;
cin >> a >> b;
cin.ignore(10,'\n');

string small, big;

if (a < b)
{
small = a;
big = b;
}

if (a > b)
{
small = b;
big = a;
}

if (a.size() == b.size() && a != b))
{
cout << "Same size, but different string" << endl;
cin.get();
return 0;
}

if (a == b)
{
cout << "Their the same string" << endl;
cin.get();
return 0;
}

cout << big << " is larger than " << small << endl;
cin.get();
return 0;
}

-- modified at 13:53 Friday 10th February, 2006

Maximilien10-Feb-06 8:40

Maximilien

10-Feb-06 8:40

will is larger than rents ...

the < or > compare lexicographically; so W is bigger than R.

anyway, in my case, my will will be bigger than my rent ... :->

Maximilien Lincourt
Your Head A Splode - Strong Bad

#hackC++10-Feb-06 8:45

#hackC++

10-Feb-06 8:45

Would <= and >= fix the problem? If not what would I have to put there?

RobJones10-Feb-06 8:54

RobJones

10-Feb-06 8:54

if(a.size() > b.size())
{
....
}

if(a.size() < b.size())
{
....
}

if you are compairing the lengths.

Whoever said nothing's impossible never tried slamming a revolving door!

Maximilien10-Feb-06 9:12

Maximilien

10-Feb-06 9:12

no it will not.

R is still smaller ( or equal ) than W, whatever the length of the rest of the strings.

what are you trying to compare ? the string length ? or the lexical order ?

Maximilien Lincourt
Your Head A Splode - Strong Bad