C / C++ / MFC

Zdeslav Vojkovic wrote:

3. any class/type can be exception tpye, but maybe you would like to have look at the 'exception' class, which is a base class for all exeption classes in standard c++ library

Britley wrote:

I started using try/catch(...) in C++, but not sure what all can be done in the catch block.

Britley wrote:

1. What does the elipsis (...) mean?

Britley :->wrote:

What else can be put here?

Britley wrote:

If so, how do you define an exception class? Is there an interface that we should implement?

Britley wrote:

4. When we have the elipsis(...) how do you get the details of the exception?

Britley wrote:

5. Are there simple examples anywhere that demonstrate exceptions in C++ for Java programmers

<br />
TRY<br />
{<br />
CDatabase DB;<br />
CRecordset Rc;<br />
CString szSql = "SELECT * FROM MYTABLE WHERE AGE = 20"<br />
DB.ExecuteSql(szSql);<br />
}CATCH(CDatabaseException CDbe){ AfxMessageBox(CDBE->m_error));}<br />

Aljechin wrote:

Eg: catch(CFileException Cfe)

Aljechin wrote:

There is one API call known as GetLastError for this purpose

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Yuwraj wrote:

I have to write a code which contain connect method and which connect's

to server.

"The words of God are not like the oak leaf which dies and falls to the earth, but like the pine tree which stays green forever." - Native American Proverb

#include <windows.h>
#include <stdio.h>
#include "psapi.h"

void PrintProcessNameAndID( DWORD processID )
{
    char szProcessName[MAX_PATH] = "unknown";

    // Get a handle to the process.

    HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |
                                   PROCESS_VM_READ,
                                   FALSE, processID );

    // Get the process name.

    if (NULL != hProcess )
    {
        HMODULE hMod;
        DWORD cbNeeded;

        if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod), 
             &cbNeeded) )
        {
            GetModuleBaseName( hProcess, hMod, szProcessName, 
                               sizeof(szProcessName) );
        }
        else return;
    }
    else return;

    // Print the process name and identifier.

    printf( "%s (Process ID: %u)\n", szProcessName, processID );

    CloseHandle( hProcess );
}

void main( )
{
    // Get the list of process identifiers.

    DWORD aProcesses[1024], cbNeeded, cProcesses;
    unsigned int i;

    if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
        return;

    // Calculate how many process identifiers were returned.

    cProcesses = cbNeeded / sizeof(DWORD);

    // Print the name and process identifier for each process.

    for ( i = 0; i < cProcesses; i++ )
        PrintProcessNameAndID( aProcesses[i] );
}

Love Forgives--Love Gives--Jesus is Love

"The words of God are not like the oak leaf which dies and falls to the earth, but like the pine tree which stays green forever." - Native American Proverb