Displaying cout/printf messages in non-console apps

[rho]

Hi guys,

I have a lib that was written for a console app that displays status messages via cout/printf commands. I now need to use this lib in a non-console app (ie a Win32 Application), but would still like to display the status messages. Has anyone done this before, or know how it could be done?

Thanks in advance,

Richard.

 

[rho]

Hi Guys,

Just in case anyone was wondering, I found a solution to this problem at codeguru:

http://codeguru.earthweb.com/misc/console.shtml

Regards,

-Richard.

 

[Guest_imported]

Yes, rho you will want to do the following (from Mozilla code):

// Users wants to make sure we have a console.
// Try to allocate one.
BOOL rc = ::AllocConsole();
if ( rc )
{

// Console allocated. Fix it up so that output works in
// all cases. See

http://support.microsoft.com/support/kb/articles/q105/3/05.asp.

// stdout
int hCrt = ::_open_osfhandle( (long)GetStdHandle( STD_OUTPUT_HANDLE ),
_O_TEXT );
cout.
if ( hCrt != -1 )
{
FILE *hf = ::_fdopen( hCrt, "w" );
if ( hf )
{
*stdout = *hf;
::fprintf( stdout, "stdout directed to dynamic console\n" );
}
}

// stderr
hCrt = ::_open_osfhandle( (long)::GetStdHandle( STD_ERROR_HANDLE ),
_O_TEXT );
if ( hCrt != -1 )
{
FILE *hf = ::_fdopen( hCrt, "w" );
if ( hf ) {
*stderr = *hf;
::fprintf( stderr, "stderr directed to dynamic console\n" );
}
}

// stdin?
/*Don't bother for now.
hCrt = ::_open_osfhandle( (long)::GetStdHandle( STD_INPUT_HANDLE ),
_O_TEXT );
if ( hCrt != -1 ) {
FILE *hf = ::_fdopen( hCrt, "r" );
if ( hf )
{
*stdin = *hf;
}

}
*/
}
else
{
// Failed. Probably because there already is one.
// There's little we can do, in any case.
}