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as long as your tail! 
Sorry gentelmen! He/She need it!
modified on Saturday, April 12, 2008 2:24 PM
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Usef Marzbani wrote: CDatabase *pdb=new CDatabase;
Why are you creating this on the heap? It has nothing to do with your problem, but it is an unnecessary bother of Windows' memory manager.
"Love people and use things, not love things and use people." - Unknown
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Is it safe to use OnNewWindow2 on multithread ?
For example, one thread's WebBrowser fire NewWindow2 and let another
thread's application take the Dispatch pointer ?
AthreadWebBrowser::OnNewWindow2(LPDISPATCH* ppDisp, BOOL* Cancel)
{
Cancel = FALSE;
HRESULT hr;
CoInitializeEx(NULL,COINIT_MULTITHREADED);
LPSTREAM pStream = NULL;
hr = ::CoMarshalInterThreadInterfaceInStream(IID_IDispatch,*ppDisp,&pStream);
if(hr != S_OK)
{
AfxMessageBox("couldn't get interface");
}
}
but it's failer
wqewqqeweqwrwerewrwe
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Hi Masters!
Can I set CRecordset::m_pDatabase explicitly, I mean something like:
<br />
CDatabase *pdb=NULL;<br />
CRecordsetDerived rd;<br />
<br />
void Initialization()<br />
{<br />
pdb=new CDatabase;<br />
pdb->Open(_T("Connection String"));<br />
<br />
rd.m_pDatabase=pdb;<br />
}<br />
Thank you...
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You could, but it may not work.
Take a look at the code for the CRecordset constructor.
You'd need to duplicate the code that the framework does when a database object
is either passed to the CRecordset constructor or created internally in CRecordset::AllocHstmt().
Why not just pass the database object to the recordset constructor?
It doesn't make sense (in the context of the CDatabase/CRecordset classes) to switch databases on a recordset.
Just create a new recordset if the database changes.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Because I used a Global CRecordset object and I can't pass a CDatabase object to it while that CDatabase object is not exist yet!
// Global variables and objects
CDatabase *pdb=NULL;
CRecordsetDerived rd;
<br />
Initialization()<br />
{<br />
pdb->Open(...);<br />
rd.m_pDatabase=pdb;<br />
}<br />
<br />
Function_I()<br />
{<br />
...<br />
}<br />
<br />
Function_II()<br />
{<br />
...<br />
}<br />
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So create the global recordset after you have a database, and recreate it if the database changes.
You can do that with a global pointer instead of a global object.
It still doesn't make sense to do what you're trying to do in the context of the MFC database classes design.
Since recordsets are dependent on a database, it doesn't make sense to create them in reverse order.
That's why there's not a method in the framework to do it 
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Hi,
Can anyone please tell me how to catch all possible exceptions of my C++ Console program (My program doesn't use MFC).
Regards,
Mushq
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With a big try block.
void main()
{
try
{
}
catch(...)
{
}
}
BTW I don't know if it is a good idea.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Hi,
the big try-catch is great as a fall-back, to exit gracefully with a log;
but it is no substitute for the regular try-catch blocks you should implement at
critical points in the code.
Also it only catches exceptions in the main thread. So there is a lot more to it to get
it right.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Luc Pattyn wrote: which also depends on the .NET version
Mark Salsbery
Microsoft MVP - Visual C++
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Hi Mark,
the sentence, while IMO correct if you use .NET, was deleted the minute I posted my reply,
so the reply does not show a "modified..." message. I am surprised you were able to see it anyway.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Luc Pattyn wrote: I am surprised you were able to see it anyway.
It's a multithread issue depending on .NET version I suppose...
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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I have always been assuming a post only became visible after a 2 to 3 minutes, giving
the author the opportunity to correct it without creating replies like these...
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Nah It's fast. What are the odds a goofball like me would catch it the instant you posted
and give you a hard time about it?
Mark Salsbery
Microsoft MVP - Visual C++
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hehe I just happened to refresh as you posted the first time
Mark Salsbery
Microsoft MVP - Visual C++
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Luc Pattyn wrote: the big try-catch is great as a fall-back, to exit gracefully with a log;
but it is no substitute for the regular try-catch blocks you should implement at
critical points in the code.
I Know. My "I don't know if it is a good idea" was about that.
Luc Pattyn wrote: Also it only catches exceptions in the main thread. So there is a lot more to it to get
it right.
he may repeat the pattern in all program threads.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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CPallini wrote: he may repeat the pattern in all program threads.
and in all callback functions/methods (e.g. timer ticked, serialport datareceived),
requiring the implementation of an exception tracing mechanism, so the info does not
get lost.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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I make a guess: he is not developing a OS from scratch...
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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CPallini wrote: I make a guess: ...
I'm not a guessing guy, and the OP explicitly asked how to catch all possible exceptions,
hence...
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Luc Pattyn wrote: I'm not a guessing guy
Well, I will not keep going at your limitations...
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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Exceptions depednds to your program,what's your code?
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Every time I used TextOut (e.g. TextOut(dc,20,20,S,strlen(S)); ) with Borland C++ 4.52 under Windows 95 or Windows 98, the position of the text (in the second & third args) was relative to the window that the calling application was running in. But with Visual C++ under Windows Vista the text is positioned (here, at (20,20)) relative to the whole screen. This is a nuisance. What is happening? How can I position the text relative to my application's window?
modified on Saturday, April 12, 2008 9:01 AM
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I dont know why the phenomenon happens, anyway ClientToScreen [^] function maybe useful.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
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