C / C++ / MFC

CFile TestFile;<br />
CString csFileName = "C:/Documents/TestFile.txt";				TestFile.Open(csFileName,CFile::modeCreate | CFile::modeWrite);<br />
TestFile.Write(&Rx_Buf,3000);

<br />
CFile TestFile;<br />
CString csFileName = "C:/Documents/TestFile.txt"; <br />
if(TestFile.Open(csFileName,CFile::modeCreate | CFile::modeWrite)) {<br />
    TestFile.Write(&Rx_Buf,3000);<br />
    TestFile.Close();<br />
}<br />
else {<br />
    // Cannot create the file<br />
}<br />

thathvamsi wrote:

The main purpose of storing the received values in a file is to retreive the file at a later stage and use the data values to plot a graph.
So when Iam reading the file again, I need to have the values as unsigned char for them to be plotted.

unsigned char* Rx_Buf = new unsigned char[3000000];<br />
unsigned char* read = new unsigned char[3000000];<br />
<br />
// Copying the read data buffer in a file<br />
CFile TestFile;<br />
CString csFileName;<br />
CString csFileName_var;<br />
CTime ct = CTime::GetCurrentTime();<br />
csFileName = "File_" + ct.Format("%m%d%Y%H%M%S");<br />
csFileName_var = csFileName;					TestFile.Open(csFileName,CFile::modeCreate|CFile::modeWrite|CFile::typeBinary);<br />
TestFile.Write(Rx_Buf,3000000);<br />
TestFile.Close();<br />
<br />
//Reading back the file:<br />
TestFile.Open(csFileName_var,CFile::modeRead | CFile::typeBinary);<br />
TestFile.Read(&read,3000000);<br />
TestFile.Close();

<br />
TestFile.Read(&read,3000000);<br />

<br />
TestFile.Read(read,3000000);<br />

Jumpin` Jeff wrote:

m_List.InsertItem(0, Items);

Jumpin` Jeff wrote:

With my example above, if I change
m_List.InsertItem(0, Items);

to
m_List.InsertItem(0, "Hello!");

it will insert a new row "Hello!" so the issue really is getting the variable Items to convert to the proper format to display in the listview.

Jumpin` Jeff wrote:

In a console window, I can display the Items extracted from the file using the reinterpret_cast&Items with a simple
cout << Items <<endl;< blockquote="">

Here << operator is overloaded to display standard data type.

Am I under stood correctly, what you want to say? If not can you be specific.

Prasad
Notifier using ATL

Jumpin` Jeff wrote:

So what do you recommend for the conversion?

1. sprintf
2. stringstream
3. itoa