|
leppie wrote: In a file ending with .c or .cpp.
These days even .cs, .vb
Regards,
Nish
|
|
|
|
|
leppie wrote: In a file ending with .c or .cpp.
opps, i have seen same code in hpp file 
"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
|
|
|
|
|
|
|
Check sourceforge.net.
If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week
Zac
|
|
|
|
|
|
Jon Sagara wrote: You tool.[^]
He has posted the same question twice in the lounge. Clearly he didn't suffer enough abuse the first time. 
I'd love to help, but unfortunatley I have prior commitments monitoring the length of my grass. :Andrew Bleakley:
|
|
|
|
|
My suggestion is to use google, but you need to pull your head out of your ass first so you can see what you're doing.
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
|
|
|
|
|
What is the best way to update a view after opening a file from the document class? I am working with OpenGL and NTGraph and I have read data from a file to an array in OnOpenDocument and I need to automatically update the view. In the past I have added a menu item called Refresh Graph and when I select it, I assign the appropriate data and then call Invalidate to update the graph. It works, but it is not automatic and I know there has to be a better way to do it. Thank you.
CWB
|
|
|
|
|
|
When you are initially opening the file, you just need to override the view's OnInitialUpdate method. Calling UpdateAllViews from your document's initialization process can lead to double-drawing the view at startup (which you may or may not mind depending on how performance hungry your app is).
If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week
Zac
|
|
|
|
|
Help me! i am learning about Client-Server modern.
i want to write a program that server manages the music web
(upload and download songs). Client can upload or download songs if it's a member of webpage. Client can only delete the songs that it uploaded....
thanks!Sao
|
|
|
|
|
Can anyone tell me the functionality difference between these two styles. The only difference I know is that a window style can always be either of them.
What would be the exact difference if these styles are swapped? And example would be great.
|
|
|
|
|
ArtiGujare wrote: What would be the exact difference if these styles are swapped?
For a window with WS_CHILD, GetParent() returns the parent window. For a window with WS_POPUP, GetParent() returns the owner window, and it can be drawn anywhere on the screen, not just within the parent's client area.
"The largest fire starts but with the smallest spark." - David Crow
|
|
|
|
|
The reason I posted this question was I found a strange thing happening in my code.
My application has a complex layout. with lot of modeless dialogs,Form views etc.
1) In some sequence a modeless dialog(with WS_CHILD style) is created and displayed from Wnd1.
2) Then a button in another window - wnd2 (not from the parent window) is pressed . eg: eg help file button pressed to open a help window.
3) Now when the help window - wnd3 is closed, my modeless dialog does not get painted and appears invisible. Only minimize/maximise or Alt-Tab repaints/brings back the modeless dialog.
When debugged I found out that the modeless dialog window style was WS_CHILD. I changed the style to WS_POPUP and evrything worked fine.
Could someone explain why it worked in the later case.
Thanks again,
Arti Gujare
|
|
|
|
|
Hi,
I am retrieving fields from an MS-Acces database but getting problem.
CRecrodset object is opened successfully using :
bool isOpened = rs.Open( CRecordset::forwardOnly,strSqlQuery);
And this statement is also working:
short nFields = rs.GetODBCFieldCount( );// this is returning 1 , OK
But problem is here:
while( !rs.IsEOF( ) )
{
sprintf(tmp,"rs recieved %d record",cnt++);
DisplayMsg(tmp);
for( short index = 0; index < nFields; index++ )
{
rs.GetFieldValue( index, varValue );
strResult = *(varValue.m_pstring);
}
rs.MoveNext( );
}
The control never enters in this loop.
Can anyone suggest wats happening here.
here is complete code:
strSqlQuery = queryDBData->GetSqlQuery()+ strDigits;
strConnectionString = queryDBData->GetConnectionString();
try
{
objDB.OpenEx( _T(strConnectionString),CDatabase::openReadOnly | CDatabase::noOdbcDialog );
}
catch(CDBException* dbExcep)
{
isSucceeded = false;
}
CRecordset rs(&objDB); // db is database object open above;
bool isOpened = rs.Open( CRecordset::forwardOnly,strSqlQuery);
if(isOpened)
{
CDBVariant varValue;
short nFields = rs.GetODBCFieldCount( );
sprintf(tmp,"nFields %d found in dbquery ",nFields);
DisplayMsg(tmp);
while( !rs.IsEOF( ) )
{
for( short index = 0; index < nFields; index++ )
{
rs.GetFieldValue( index, varValue );
strResult = *(varValue.m_pstring);
}
rs.MoveNext( );
}
isSucceeded = true;
}
else
isSucceeded = false;
Thanx in advance.
Cyber Friend
|
|
|
|
|
Cyber Friend wrote: The control never enters in this loop.
How are you verifying this?
"The largest fire starts but with the smallest spark." - David Crow
|
|
|
|
|
I checked it using a MessageBox but removed that line when posted to forum.
AfxMessageBox("While loop enterd");
Cyber Friend
|
|
|
|
|
Which tells you that the recordset is already at the end. Just move it to the beginning.
"The largest fire starts but with the smallest spark." - David Crow
|
|
|
|
|
Hi,
When I wrote this before entering the while loop and after opening the recorset using open(), it didn't work bcoz this if block is not entered.
if(!rs.IsBOF())
{
DisplayMsg(" if block entered");
rs.MoveFirst();
}
and if I write this
rs.MoveFirst();
instead of above if block then a runtime debug assertion failed appears .
Cyber Friend
|
|
|
|
|
After opening the Recordset object using open(), when I write this if statement
if(!rs.IsBOF())
{
DisplayMsg(" if block entered");
rs.MoveFirst();
}
this if block is not entered which means that Recordset object is at beginning of file. Does it mean that Recordset is empty? While when I checked the Recordset object using
short nFields = rs.GetODBCFieldCount( );
it returned 1.
but after it while loop is not entered at all as I have mentioned in my previous posts.
Cyber Friend
|
|
|
|
|
Hi,
Sorry to u all as there was no problem in the code which I posted in my question. Actually I have the two copies of the database which I am working on and mistakenly modified the copy of the original database while I had to modify original one bcoz I was querying the original database. The values I was seeking were not in the original database which I was accessing through my application bcoz of that Recordset object was empty.
Sorry again.
Regards
Cyber Friend
|
|
|
|
|
Cyber Friend wrote: Does it mean that Recordset is empty?
Possibly.
Cyber Friend wrote: While when I checked the Recordset object using
short nFields = rs.GetODBCFieldCount( );
it returned 1.
Columns (fields) are not the same thing as rows. A table typicaly has several columns, but could easily be empty (no rows) if no data has been entered.
"The largest fire starts but with the smallest spark." - David Crow
|
|
|
|
|
I have a dialog application that opens a series of windows. I have been using ShowWindow(SW_HIDE) to hide each when opening the next. However, I am having problems now, I want to go back to the main window after opening (and hiding) all of these windows. But even when it is the only one not hidden, I cannot click on it once something else has been opened. Is this because I need my windows to be modeless? or am I able to distroy them somehow after opening them instead of using ShowWindow(SW_HIDE)because that seems more practical? Sorry for the stupid question, but this is my first MFC program and I will catch on eventually 
-Brandy
|
|
|
|
|
aei_totten wrote: Is this because I need my windows to be modeless?
Yes. If the dialogs are modal, you'll only be able to interact with one of them at a time.
"The largest fire starts but with the smallest spark." - David Crow
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
