Canon Camera Hackers Manual page 239

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C H A P T E R 7 The Stereo Data Maker (SDM)
beep
Identical to playsound 4 (section 5.5.8).
Camera state-related commands
lcd_on_off
Toggles the on/off state of the camera display. This does not work on all cameras.
turn_backlight_off
turn_backlight_on
Identical to set_backlight 0 and set_backlight 1 (section 5.5.8). Works on all cam-
eras.
get_shooting_mode r
Identical to get_shooting (section 5.5.10).
movie_mode
Switches the camera to movie mode (except on cameras with a separate MOVIE
button).
playback_mode
Switches the camera to Playback mode.
record_mode
Switches the camera to Record mode.
get_sync a b c d
set_sync a b c d
Retrieves and sets the SDM synchronization state: Parameter a goes into Enable Synch
(1 = enable, 0 = disable), parameter b goes into Enable Synch delay (1 = enable, 0 = dis-
able), parameter c goes into User delay (in 0.1 msec), parameter d goes into Coarse
delay (in 0.1 sec) (section 4.9.3).
sync_on
sync_off
Enables/disables the Enable Synch option (see set_sync above).