AMX TPDESIGN4 V2.5 Installation Guide download pdf (Page 45)

Programming AMX Controllers for a Kaleidescape System

Page 45

Programming Events

When the AMX master receives a volume control message, it will pulse the

standard AMX channel (unless an alternate channel has been defined as described

above) for the command on the virtual device of the player that received the

command. Button events for these channels can be created and used to trigger

actions that can raise, lower, or mute the volume in the zone. The code snippet

below shows a sample button event from the Kaleidescape Multiple Panel Include file

that will raise the volume in Zone1 when KPLAYER1 receives a volume up message.

BUTTON_EVENT [KPLAYER1, 24]

{

push:

{

do_push_timed (KZone1, 24, 1)

}

hold [5, repeat]:

{

do_push (KZone1, 24)

}

release:

{

do_release (KZone1, 24)

}

Programming Feedback

Volume level feedback can be sent to Kaleidescape controllers that support

feedback by setting level 55 of the player’s virtual device. When the volume level

changes, playerVolumeProperties[].volLevel should be updated with the new volume

level. The stored volume will be sent in response to VOLUME_QUERY.

LEVEL_EVENT [KZone1, 1]

{

stack_var integer scaledVolume

scaledVolume = type_cast(level.value/2.55)

send_level KPLAYER1, 55, scaledVolume

playerVolumeProperties[1].volLevel = scaledVolume

}

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AMX TPDESIGN4 V2.5 Installation Guide Page 45