vb.net - how to kill tabtip process after starting it -

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i can start tabtip (virtual keyboad) in program reason can't kill it.

this code:

private tabtipprocess process  private sub t_enter(sender object, e eventargs)     tabtipprocess = process.start("tabtip") end sub  private sub t_leave(sender object, e eventargs)     tabtipprocess.kill() end sub

on line tabtipprocess.kill() error:

cannot process request because process (5312) has exited.

i'v got it:

for each pkiller process in process.getprocesses         if string.compare(pkiller.processname, "tabtip", true) = 0             pkiller.kill()         end if     next

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