Winsdow Media Player condition..PLEASE HELP ME!!

hello guys....
i got some problem..... i don`t` know how to make some condition on Windos Media Player....
the condition is :
I want to stop the TIMER when the VIDEO start playing.....
I`ve tries this :

If WindowsMediaPlayer2.playState = wmppsPlaying Then
Timer7.Enabled = False
End If

BUT IT WON`T` WORK... TIMER DIDN`T STOP... please help me ...