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Hello World

Content:
- Properties
- Methods

Creates a shell SystemProcess (ie. “sh”, “su” if root or “busybox” if installed) which can be reused throughout the program.

sys = app.CreateSysProc( cmd, env?, dir?, options? ) → app object: SysProc

If env or dir are not provided HOME and TMDDIR are set by the component.

Example - Basic click to expand contents

function OnStart()
{
    lay = app.CreateLayout( "linear" );

    txt = app.CreateText( "", 1, 1, "Log,Monospace,autoscale" );
    lay.AddChild( txt );

    app.AddLayout( lay );

    sys = app.CreateSysProc( "sh" );
    sys.Out( "netstat\n" );
    sys.SetOnInput( sys_OnInput );
    sys.SetOnError( sys_OnError );
    sys.Out( "netstoat\n" );
}

function sys_OnInput( msg )
{
    txt.Log( msg );
}

function sys_OnError( msg )
{
    txt.Log( msg );
}

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Example - Colored click to expand contents

function OnStart()
{
    lay = app.CreateLayout( "linear" );

    scr = app.CreateScroller( 1, 1, "horizontal" );
    lay.AddChild( scr );

    txt = app.CreateText( "", 1, -1, "monospace,log" );
    txt.SetTextSize( 8 );
    txt.SetLog( 1000 );
    scr.AddChild( txt );

    app.AddLayout( lay );

    sys = app.CreateSysProc( "sh" );
    sys.SetOnInput( sys_OnInput );
    sys.SetOnError( sys_OnError );

    Exec( "netstat\n" );

    // filter files containing 'D' in /sdcard/ and forward to stderr
    Exec( "ls -al /sdcard/ | grep D >&2\n" );

}

function Exec( cmd )
{
    sys.Out( cmd );
    txt.Log( cmd, "green" );
    scr.ScrollTo( 0, txt.GetHeight() );
}

function sys_OnInput( msg )
{
    txt.Log( msg );
    scr.ScrollTo( 0, txt.GetHeight() );
}

function sys_OnError( msg )
{
    txt.Log( msg, "red" );
    scr.ScrollTo( 0, txt.GetHeight() );
}

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Properties

The following properties are available on the SysProc object:

data → Object: { key, value }

Methods

The following methods are available on the SysProc object:

Batch( properties )

Err( maxLines, options? )

GetType() → String: “SysProc”

In( maxLines, options? )

Method( name, types?, p1?, p2?, p3?, p4? ) → all types

Out( command )

ReadFileAsByte( file ) → Number: bytes

SetOnError( callback )

SetOnInput( callback )

WriteToFile( file, data )

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