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Can u tell me the header files to be included.
It is showing as "undeclared identifier".
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Documentation Check here [^]
Regards,
Sandip.
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Hi all
How can make a application which run program as a system service? Plz help me
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Check out this link.[^]
Regards,
Rane
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Services[^]
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.freetls.fastly.net/script/Forums/Images/coffee.gif)
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Hi all,
i m using CListCtrl wit LVS_SHOWSELALWAYS and LVS_EX_FULLROWSELECT property.
here multiple items are select with the help of mouse.
i want only one row select at any condition.
please tell me how can i do this.
if possible please explain with example.
i waiting for your valuable suggestion and replies.
thanks in advance.
IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH
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One way would be to handle the click event on the list. Save the index of the selected item in some member variable. Once the user clicks on an item other than the selected one use SetItemState and SetSelectionMark to get this done. You already have the previously selected item index stored and can get the current one easily
Hope this helps
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
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"_$h@nky_" wrote: i want only one row select at any condition.
set the LVS_SINGLESEL style.
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thanks.
IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH
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Hello dear friends,
How can I get the all drive name of PC?
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is _getdrive() helpful?
From MSDN:
int main( void )
{
int ch, drive, curdrive;
static char path[_MAX_PATH];
curdrive = _getdrive();
printf( "Available drives are:\n" );
for( drive = 1; drive <= 26; drive++ )
{
if( !_chdrive( drive ) )
{
printf( "%c:", drive + 'A' - 1 );
if( _getdcwd( drive, path, _MAX_PATH ) != NULL )
printf( " (Current directory is %s)", path );
putchar( '\n' );
}
}
_chdrive( curdrive );
}
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
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Thx's _AnShUmAn_
It's working..
Now i want to add these drive name in edit box then i am geting some problem.When i am adding these drive name in edit box then first and last name is added.Middle one is skip..i am useing this code
GetDlgItemText(IDC_EDIT_DIR_TO_MONITOR,m_strDirectoryToMonitor);
if(m_strDirectoryToMonitor.Trim().IsEmpty())
{
SetDlgItemText(IDC_EDIT_DIR_TO_MONITOR,b);
}
else if(!m_strDirectoryToMonitor.Trim().IsEmpty())
{
SetDlgItemText(IDC_EDIT_DIR_TO_MONITOR2,b);
}
plz help me
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JFYI- you can ignore this statement [if(!m_strDirectoryToMonitor.Trim().IsEmpty())]. It doesn't server the purpose, since if the string is empty it would be processed in the if part otherwise the else part...
Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_
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Use GetLogicalDriveStrings()
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Hello everyone,
For COM STA, there is a owner thread. My questions is, when the thread needs to communicate with components in other apartments, whether the owner thread will be blocked?
My current experiment and study results is, the STA owner thread is not blocked, it is the RPC thread (which is used for underlying communication with other apartment to send method call and retrieve method return result) will be blocked. But I am not 100% sure about this. Any comments or ideas?
thanks in advance,
George
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I think we covered this half a year ago in this forum thread[^].
All calls in COM are blocking, i.e. the thread of the caller will be blocked until the callee returns. All methods in a COM interface returns a HRESULT that tells the caller whether the call succeeded or failed. If the call wasn't blocking the returned value would be completely bogus.
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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Thanks Roger,
I remember what we discussed before. Here is what I found from MSDN, looks like our previous conclusion, the STA owner thread will be blocked is not correct, it should be the RPC thread blocked, and STA owner thread continues to deal with message pump?
http://msdn.microsoft.com/en-us/library/ms809311.aspx[^]
Refer to section "Single-Threaded Apartments (STA)", especially figure 6, 8 and 9. Any comments?
regards,
George
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George_George wrote: STA owner thread continues to deal with message pump
It depends on what you mean by "continues".
The call does not return to the client until the server has serviced the call.
Of course the hidden COM window processes COM related messages in order to received the response from the server and the HRESULT of the call.
Try to experiment with this:
Create a small out-of-process server with "sleep"-functionality.
Create a client that calls the "sleep" function and see what happens. Try move the client window around during the call to the server.
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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George_George wrote: Since it is the STA owner thread which process the message pump, so, it should not be blocked -- if blocked, how could it retrieve message pump?
Because it's not the ordinary message pump of the application, it's a message pump provided by the COM library that filters messages. It makes the calling thread open for COM calls which makes it reentrant from a COM perspective, but it would make a window that belongs to the calling thread non-responsive. Believe me, I have it in front of me as we "speak".
George_George wrote: And it is why the STA reentry issue exists -- STA owner thread is not blocked when making an outward call.
Please refer to section "STA Reentrancy" of the following article.
Doesn't the article you linked to answer your questions?
I don't know how to explain this further, or I may have misinterpreted your question.
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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Thanks Roger,
Two more questions. The 1st question is dues to my bad English. 
1.
Roger Stoltz wrote: It makes the calling thread open for COM calls which makes it reentrant from a COM perspective, but it would make a window that belongs to the calling thread non-responsive. Believe me, I have it in front of me as we "speak".
Do you mean there is something error in the reentrancy sample I posted? If it is not your points, please feel free to correct me and say some other words other than above to express your points.
2.
Roger Stoltz wrote: Doesn't the article you linked to answer your questions?
Do you mean the STA owner thread is not blocked (and continue to do message pumping), it is the RPC thread (which is used for underlying communication with other apartment to send method call and retrieve method return result) will be blocked.
regards,
George
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Hi,
Currently, I have a form application (written in MFC). Lets call it AppsTest.exe. But I wanted to change this application (exe) into exe + COM.
What I mean is that I wanted to be able to call a COM function in my other application (eg. VB or C#) and launch a message box in my MFC application (AppsTest.exe).
I am just wondering, where to start and is there any tutorial site that I can use as reference?
Thanks for any help...
Cheers 
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Ah... found the solution. Simply convert it to Automation class
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hey,
is there any way to set values to charachter arrays that you enter for example:
int main()
{
int a1, a2, a3, a4,...........a11, x;
cin >> a1;............cin >> a11;
char str[10][40]
for(x = 0; x < 10; x++){
gets(str[x]);
}
int "str[0]" = a1, "str[1]" = a2,.........................."str[9]" = a11;
return 0;
}
thanks
modified on Sunday, September 7, 2008 8:06 PM
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