hallo leutens,

kann mir jemand mal ein anwendungsbeispiel für popen() hier reinpasten?

ich muß aus einem c proggie heraus ein ls machen und will die dateien, die normalerweise in der konsole angezeigt werden, in einem string speichern ...

danke !!

poldi

Hi

Das hier ist aus Visual C++

vielleicht hilft dir ja das weiter

dein Hasi

/* POPEN.C: This program uses _popen and _pclose to receive a

* stream of text from a system process.

*/

#include <stdio.h>

#include <stdlib.h>

void main( void )

{

char psBuffer[128];

FILE *chkdsk;

/* Run DIR so that it writes its output to a pipe. Open this

* pipe with read text attribute so that we can read it

* like a text file.

*/

if( (chkdsk = _popen( "dir *.c /on /p", "rt" )) == NULL )

exit( 1 );

/* Read pipe until end of file. End of file indicates that

* CHKDSK closed its standard out (probably meaning it

* terminated).

*/

while( !feof( chkdsk ) )

{

if( fgets( psBuffer, 128, chkdsk ) != NULL )

printf( psBuffer );

}

/* Close pipe and print return value of CHKDSK. */

printf( "\nProcess returned %d\n", _pclose( chkdsk ) );

}

Output

Volume in drive C is CDRIVE

Volume Serial Number is 0E17-1702

Directory of C:\dolphin\crt\code\pcode

05/02/94 01:05a 805 perror.c

05/02/94 01:05a 2,149 pipe.c

05/02/94 01:05a 882 popen.c

05/02/94 01:05a 206 pow.c

05/02/94 01:05a 1,514 printf.c

05/02/94 01:05a 454 putc.c

05/02/94 01:05a 162 puts.c

05/02/94 01:05a 654 putw.c

8 File(s) 6,826 bytes

86,597,632 bytes free

Process returned 0

Super, danke dir!!

Damit kann ich schon mehr anfangen ... ;o)

cu

Poldi