VBScript - Capturing output from stdout -
i know has been answered 1 in question, not understand how done.
i trying output of command line program (aria2 downloader) hta script can parsed , download percentage, file size etc can obtained , updated div dynamically.
here code have adjusted , have been trying use locks interface until command line has finished , displays output, instead of displaying , when comes through.
const wshrunning = 0 const wshfinished = 1 const wshfailed = 2 strcommand = "ping.exe 127.0.0.1" set wshshell = createobject("wscript.shell") set wshshellexec = wshshell.exec(strcommand) while wshshellexec.status = wshrunning window.settimeout "", 100 loop select case wshshellexec.status case wshfinished stroutput = wshshellexec.stdout.readall() case wshfailed stroutput = wshshellexec.stderr.readall() end select set objitem = document.getelementbyid("status") objitem.innerhtml = "" & stroutput & "" how modify doesn't lock user interface , grabs output , displays in "status" div comes through?
the problem code not end, returning control browser. don't leave loop until program ends , perceived status interface hangs until subprocess ends.
you need set callback browser periodically call code update status , leave.
<html> <head> <title>pingtest</title> <hta:application applicationname="pingtest" id="pingtest" version="1.0" /> </head> <script language="vbscript"> const wshrunning = 0 const wshfinished = 1 const wshfailed = 2 dim wshshellexec, interval sub window_onload launchprocess end sub sub launchprocess set wshshellexec = createobject("wscript.shell").exec("ping -n 10 127.0.0.1") interval = window.setinterval(getref("updatestatus"),500) end sub sub updatestatus dim status set status = document.getelementbyid("status") select case wshshellexec.status case wshrunning status.innerhtml = status.innerhtml & "<br>" & wshshellexec.stdout.readline() case wshfinished, wshfailed status.innerhtml = status.innerhtml & "<br>" & replace(wshshellexec.stdout.readall(),vbcrlf,"<br>") window.clearinterval(interval) interval = empty end select end sub </script> <body> <div id="status"></div> </body> </html> 
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