## repository: https://code.ros.org/svn/ros
<<PackageHeader(rosh_common)>>
<<TOC(4)>>

== Provides ==

 * `cameras`
 * `actions`

=== actions ===

`actions` provides an index of all [[actionlib]] actions in a running ROS graph. The API is currently very simple right now and only supports display action goal arguments and synchronous invocation.

`actions.action_name`
  Prints action goal arguments.

`actions.action_name(args)`
  Invoke action synchronously and return result.

=== cameras ===

`cameras` provides an index of cameras that support the general ROS camera interface, which is commonly used in [[camera_drivers]]. With the `cameras` object, you can easily inspect which cameras are available, retrieve their camera info, and show camera images.

`show(cameras.camera)`
  Opens camera viewer using `rviz/image_view`. Accepts both single and stereo camera objects. NOTE: this requires loading the [[rosh_visualization]] plugin.

== Advanced ==

=== Plugin API ===

`rosh_common.PLUGIN_CAMERA_SHOW`
  Register `show()` handler for `cameras`. Used by [[rosh_visualization]].

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