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Hi All,
I had poarted VC++ 6.0 code to VC++ 2008. I am facing a problem with this piece of code.
typedef std::vector<char> Buffer;
void LoadFile(CString filePath, Buffer &data)
{
std::ifstream file(filePath, std::ios::in | std::ios::binary);
if (file.fail()) {
ThrowError(GetLastError(), "", (LPCTSTR)filePath);
}
while (!file.eof()) {
char c;
file.get(c);
data.push_back(c);
}
}
File Data: 212*R:\PRDS\Helptable\HL17.DAT *006*R:\PRDS\Helptable\HL58.DAT
<b>When i open the file instead of * i found a box </b>
When i look at the data vector in VC++ 6.0 the first element is 212, second is "r:\..." so on...
but when i retrieve the data vector in VC++ 2008, i am getting individual characters.
I am thinking on the boxes that he used to seperate the elements in the file.
Any suggestion will help me.
Thanks All
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pratap1980 wrote: first element is 212, second is "r:\..."
First element of what? The vector contains chars, so can't have a string as an element.
pratap1980 wrote: when i retrieve the data vector in VC++ 2008, i am getting individual characters
That's what I'd expect to see in a vector of chars?
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I am still fairly new to MFC, I have been mainly working on embedded/chip level C.
Now I have a MFC application talking to my controller through ActiveX. Certain data retrieived by ActiveX needs to be displayed to MFC user interface. data retrieiving and filltering are successful. I am trying to pass the data to MFC into an Edit control. Edit control received the notice OK. Then I get stuck. The value of the Edit control is NOT updating until the call to ActiveX is returned. As a result, only the last data is displayed. all data sent while ActiveX is running is not shown to User (although Edit control got all data).
MFC Application -> User Interface -> User Click "Retrieve" -> Display certain data to Edit box on User Interface at run-time.
What am I missing?
in .h file:
afx_msg void OnChangeStatus();
in .c file:
void CReceiveSend::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CReceiveSend)
....
DDX_Text(pDX, IDC_STATUS, X_Current_Status);
....
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CReceiveSend, CDialog)
//{{AFX_MSG_MAP(CReceiveSend)
...
ON_EN_CHANGE(IDC_STATUS, OnChangeStatus)
...
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
void CReceiveSend::OnChangeStatus()
{
//transfers values from the member variables to the controls
UpdateData( FALSE );
}
inside ActiveX function call:
int CReceiveSend::XReceive()
{
....
X_Current_Status = some_value;
this->SetDlgItemText(IDC_STATUS, X_Current_Status);
return(0);
}
Thanks
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Got answer to my own question  : Use worker thread instead for ActiveX control. It was using User Interface thread before.
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Dear All
I have one project in VC2005.
In has mose run time error.
But I dont know how to use call Stack in VC2005.
In VC2000, a Call Stack item exists
But in VC2005 in "view->Other Windows " there is no Call Stack
Could you please help me for this problem.
Regards
Mahdi
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Menu Debug->Windows->Call Stack (or ALT + 7) on my VC++ 2008 Express Edition...
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
[My articles]
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You are welcome.
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
[My articles]
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I have an MFC app that is having some weird issues.
When you start the program and don't move window around it works fine. But as soon as you start moving it around, an exception will occur.
Debugging this in VS, I will get a buffer overrun message or some MFC debug assertion. I'm pretty new to MFC, anyone have any ideas where I should look to fix this?
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Paffinity wrote: I'm pretty new to MFC, anyone have any ideas where I should look to fix this?
Very close to the error message (or as last resort, you may post it here).
You should be precise to get any help.
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
[My articles]
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Hi,
I am using AfxBeginthread in my application for reading the datas from my hardware via serial ports. after clsoing my GUI, when i try to open once again, am getting error that "exe is running". I have closed my handles related to port in destructor of the class. i suspect the Thread is not closed completely, it occupies the memory, i want to know whats the better way to close or kill the thread.
thanks in advance,
Balaji S
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Use a flag that you set from your main thread.
In your second thread, it looks like:
while (bContinue)
{
}
Once the flag is set to false by your main thread, the loop will finish and the thread function will return, terminating nicely the thread. Of course, how to implement this depends a lot of your current design, this is just the basic principle.
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Hi,
thanks for your reply.
now am doing by that way, after false condition am using "afxendthread" function. is it recommended to use or coming out from the while loop itself enough to close the thread.
thanks
balajsi
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Member 4651741 wrote: now am doing by that way, after false condition am using "afxendthread" function
Never do that. Simply exit the function (but you have to be sure that you exited the function). Never close a thread by calling afxendthread.
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Well, just return from the thread routine. Killing a thread is not recommended really...
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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Hi,
thanks,
but my concern is, whether my thread occupy memory after closing the application. thats whay i used afxendthread function
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See here[^]. It doesn't seem to matter if you use AfxEndThread or simply return.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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Member 4651741 wrote: my concern is, whether my thread occupy memory after closing the application
In the link provided by Code-o-mat, see the part about the CWinThread::m_bAutoDelete
member...
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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hi there, i need some help here. I need to develop a standalone application using sqlite and c++...I have used sqlite browser to develop my database. So how does that get connected to c++??
Thank you.
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Are you using MFC?
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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what is MFC? I'm not sure..I'm using the normal c++ code. Don't think so it a MFC.
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vanishaa wrote: what is MFC?
Microsoft Foundation Classes. A very nice wrapper around portions of the Windows API. Two classes of interest are CDatabase and CRecordset.
vanishaa wrote: I'm using the normal c++ code.
Then you'll need this.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Actually I'm doing a portable program which can be executed in any windows platform without any installation. Do you have any suggestions for portable database which can be connected to c++?? Currently I'm working on sqlite. But its kind of complicated.
Thank you.
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vanishaa wrote: what is MFC?
My First C program?
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
[My articles]
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You #include <sqlite3.h> in your code, link with the sqlite library and use the SQLite C++ API[^] to access the database.
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