MFC help : code error 0000007B

[jawadali477]

hi,
i'm developing GUI using MFC in vs2008. i have developed code and it builds fine but when i debug my code, it gives system error 0000007B. part of the code that gives this error is given below + variable initialization.

---

Code C++ - [expand]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
int COMportNum= 3;
portstream_fd COMstream;
portstream_fd pstream;
char COMportPrefix[10] = "COM";
char COMportName[256];
 
sprintf(COMportName, "%s%d", COMportPrefix, COMportNum); // initialize serial port COM3
 
strng = CString(COMportName);
strng.Format(_T("%0.9s"), strng);
SetDlgItemText(IDC_STAT, strng);
 
set_baud_rate(BaudRate);
COMstream = open_host_port(COMportName); //opens serial port COM3
 
if ( COMstream == PORT_NOT_OPENED ) //conditional check if COM3 is opened
{
stw.Format(_T("%08X"), GetLastError()); //generates error if any
SetDlgItemText(IDC_PTUPORT, stw);
}
else 
SetDlgItemText(IDC_PTUPORT, (LPCTSTR) L"Ok");

---

can anyone please help me with this error.

Regards
Jawad

 

[mgate]

Insert a debug point at line 16 to check if port opens before it crashes

....
Check microsoft info about the error 0000007B
https://support.microsoft.com/kb/324103