winapi - Redirect output of shell commands to file -


i running following command command prompt

dir > c:\log.txt 2>&1

the out directed c:\log.txt file successfully. then, running same command using createprocessa below , nothing happens

public function execcmd(cmdline$) dim proc process_information dim start startupinfo dim ret long  start.cb = len(start) start.dwflags = 1 start.wshowwindow = 1 ret& = createprocessa(vbnullstring, cmdline$, 0&, 0&, 1&, normal_priority_class, 0&, vbnullstring, start, proc) ret = waitforsingleobject(proc.hprocess, infinite) call getexitcodeprocess(proc.hprocess, ret&) call closehandle(proc.hthread) call closehandle(proc.hprocess) execcmd = ret& end function

here cmdline$ passed dir > c:\log.txt 2>&1

i have tried batch file - how redirect output exe after has terminated? , display & redirect output

please suggest wrong here

why don't use shell function? here example of how redirect output:

option explicit  private sub form_load()     execcmd "dir >c:\log.txt 2>&1" end sub  private sub execcmd(cmdline string)     shell "cmd /c " & cmdline, vbhide end sub

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