The previous working program was found. It was Gui1 placed in google drive.
The program run as:
1. detection of left/right hand as pointer
2. a button clickable to start a video.
3. the video is the long full version.
future work:
1. split video to at least 3 steps video: berdiri tegak & niat, takbiratulihram, membaca fatihah.
2. more buttons to represent intro and every steps in solat.
3. try to ensure at least 3 buttons working to open each video.