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Plugins

MultiTaction Canvus client ships with a set of plugins that provide some of its features. This page describes how an administrator turns those plugins on and off.

Canvus does not support custom plugins. The Canvus plugin SDK has been withdrawn. To integrate Canvus with your own systems, use the Canvus REST API, which can create and change canvas content, follow changes as they happen and control what each wall shows. See the integration guides.

Former bundled plugins are now built in

From Canvus 26.10.0, the features of the six plugins that used to ship with Canvus are part of Canvus itself:

Former plugin Feature in Canvus 26.10 and later
Anchor Pages Anchor grid in the anchor panel
Canvas Macros Macros section of the finger menu
Connector Follow Tapping a connector moves the view to its other end
Lock Widget Lock icon in the title bar of each widget
Looping Video Loop button on videos
Spatial Intelligence Layout section of the finger menu

Canvus no longer loads these plugins, even if an older copy is still in a plugin folder, and their settings in the [plugins] section have no effect. You do not need to install anything to get these features. Some of them need a Canvus Server of version 26.10.0 or later for shared canvases; see the 26.x release notes.

Turn a plugin on or off

Every plugin installed with Canvus is on unless you turn it off.

  1. Open the main menu, tap the settings icon, then Client > Configuration.
  2. Expand Plugins. Each plugin found at start-up has a toggle, labelled with a name derived from its library file name.
  3. Turn the plugin off, tap Save, and restart Canvus. The plugin is not loaded at the next start, but still appears in the list so you can turn it on again.

The Settings page writes the choice to the [plugins] section of mt-canvus.ini. You can set the same keys by hand, for example when you prepare a configuration for many computers. The key is the base name of the plugin's library file, without the extension: on Ubuntu and macOS usually lib<Name>, on Windows <Name>.

[plugins]
; Turn off the plugin whose library file is libExamplePlugin.so
libExamplePlugin=false

Turning a plugin off can remove a Canvus feature, so leave the plugins on unless MultiTaction support asks you to turn one off.

New in Canvus 26.5.1.

Check plugin settings after updating to 26.11.0 or earlier

Up to Canvus 26.11.0, when Canvus updates mt-canvus.ini for a new version, it comments out the [plugins] section, because the example file does not list it. Plugins you turned off are then on again. After each such update, open the Plugins section, turn off the plugins you do not want, save and restart. From Canvus 26.11.1 the update keeps the [plugins] section. See What happens when you update.