use Win32::GuiTest qw(FindWindowLike SetForegroundWindow SendKeys); use strict; my @argv=("E:\\MIBOR_TimingTest\\MIBOR\\MIBOR.usr"); system(@argv)==0 or die "Failed to execute Loadrunner"; sleep (600); my @whnds=FindWindowLike( undef,"^Mercury Virtual User Generator"); if (!@whnds){ die "Cannot find window with title/caption Mercury"; } else{ printf("Window handle of Mercury is %x\n", $whnds[0]); } sleep (60); SetForegroundWindow($whnds[0]); SendKeys("{F5}");