I am trying to fill a Listbox in a single Dialog based program using names
from a file. I started by using an example program from the MSDN - Modeless.
A simple Dialog based program using a modeless dialog to add strings to a
Listbox in the main dialog. I inserted into the sample program the following
code, which works perfectly:
#include <Fstream>
**********************
BOOL CLeasesDlg::OnInitDialog()
{
..........
........
char* names;
CListBox* pList = (CListBox*) GetDlgItem(IDC_LIST);
infile.open("Leases",ios::in, filebuf::openprot);
while( (infile.getline(names,25,'\n')) != NULL)
{
pList->AddString(names);
}
infile.close();
.............
}
Sunce the sample program was just a stepping stone I created my own Dialog
based program using the AppWizard. I inserted the above code. I now receive
an "unhandled exception" error every time during the "getline" execution. I
have been trying for the last several days to track down the problem but can
not.
Some of what I learned:
First-chance exception in Leases.exe (MSVCIRTD.DLL): 0xC0000005: Access
Violation.
so I wrote code to establish access permissions:
int test = 0;
// Check for existence
if( test = ((_access( "Leases", 0 )) != -1) )
{
// Check for read permission
if(test = ((_access( "Leases", 4 )) != -1) )
{ ........
I stepped thru both with no problem. The file exist and is readable but can
not retreive the first name.
In the disassembly window it stops on this line:
---
strgetl.cpp --------------------------------------------------------------
.......................
..........................
...................
...................
102A75CD 88 08 mov byte ptr [eax],cl
I do not understand how the code can work in the sample program and not work
in the one I created. I looked back at another program I wrote several years
ago and I used the exact same code with no problem. I would think that my
compiler was corrupted but it compiles the modeless sample program.
I am totally baffled .... PLEASE ... PLEASE help!
I would be greatly appreciative
