%popen() Function

The %popen() function creates a pipe between the calling process and the command to be executed.

Syntax

pointer = (char*)%popen(command, type)

Parameter(s)

pointer

Stream pointer that directs a write to the standard input of the command if the I/O mode is w, and reads from the standard output of the command if the type is r.

command

Shell command line.

type

I/O mode.

r

Reading

w

Writing

Description

A stream opened by %popen() must be closed by %pclose(). The stream is closed automatically at FlashBASIC program termination.

Example(s)

include dm,bp,includes sysid.inc

cfunction unix.builtin

char buffer[128]

if system(38)<sys$imp> = sys$win then

cmd = "dir"

end else

cmd = "ls -l"

end

ptr=(char*)%popen(cmd,"r")

if ptr=0 then crt "error" ; stop

loop

n=(char*)%fgets(buffer,128,(char*)ptr)

while n # 0 do

print field(buffer,char(0),1)

repeat

%pclose((char*)ptr)

This example executes a UNIX command, capturing the result.

See Also

%fgets() Function

%fputs() Function

%pclose() Function

FlashBASIC C Functions Overview

cfunction Statement

execute Statement