Re: passing file name

From:

"Tom Serface" <tom.nospam@camaswood.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Wed, 6 Jun 2007 09:03:43 -0700

Message-ID:

<O573CRFqHHA.4212@TK2MSFTNGP04.phx.gbl>

Hi Reen,

I would either make the calling agument to the function a reference to a
file handle:

bool InitPidDisplay(CFile &File);

Or just put the code to open and read the file into the function itself and
just pass in the file name to attempt to read:

bool InitPidDisplay(CString &File);

Also, although it is technically OK to put the this-> pointer in your code,
most people don't do that since it is implied and it makes it look like
you're calling a function in a pointer to an object rather than the current
object.

You could also just embed your file spec into the constructer arguments for
CFileDialog as a literal, or better yet store them in a resource string and
get it back out as needed (especially if you plan to use the file spec in
more than one place.

Hope this helps,

Tom

"reen_haz" <reenhaz@discussions.microsoft.com> wrote in message
news:66903A99-AF2B-4E17-9748-A61641DAB14B@microsoft.com...

hye..how to pass the file name that have been read in this function to
another function?here's my openfile code..

void CPIDDlg::OnFileOpen()
{
this->UpdateData();
CFile f;

char DataFile[] = { "NUM Files (*.num)|*.num||" };
CFileDialog FileDlg(TRUE,".num",NULL,0,DataFile);

if( FileDlg.DoModal() == IDOK)
{
CString File = FileDlg.GetFileName();
if(f.Open(FileDlg.GetFileName(), CFile::modeRead) == FALSE )
{
InitPidDisplay(File);
return;
}
else
f.Close();

if (!InitPidDisplay(File))
AfxMessageBox("Failed to load data");
else
AfxMessageBox("Data Load Successfully");
}
else
return;

this->UpdateData(FALSE);
}