class GPhoto2::Camera

• GPhoto2::Camera
• Reference
• Object

Included Modules

• GPhoto2::Camera::Capture
• GPhoto2::Camera::Configuration
• GPhoto2::Camera::Event
• GPhoto2::Camera::Filesystem
• GPhoto2::Camera::ID
• GPhoto2::Camera::Info
• GPhoto2::Struct(LibGPhoto2::Camera)

Defined in:

Constructors

• .first : self

  Returns first available camera or raises NoDevicesError when no devices are detected.

• .new(model : String, port : String)
• .open(model : String, port : String) : self

Class Method Summary

• .all : Array(self)

  Returns all available cameras.

• .first(&) : Nil

  Pass a block to automatically close the camera.

• .first? : self | Nil

  Returns first available camera, or nil when no devices are detected.

• .open(model : String, port : String, &) : Nil

  Pass a block to automatically close the camera.

• .where(*, model : String | Regex | Nil = nil, port : String | Regex | Nil = nil) : Array(self)

  Filters devices by a given condition.

Instance Method Summary

• #==(other : self)

  Returns true if this reference is the same as other.

• #abilities : CameraAbilities
• #autorelease(&) : Nil

  Ensures the camera is finalized when passed a block.

• #can?(operation : Operation)

  Check camera abilities (see Operation).

• #close : Nil
• #context : Context
• #exit : Nil

  Closes a connection to the camera and therefore gives other application the possibility to access the camera, too.

• #model : String
• #port : String
• #port_info : PortInfo
• #ptr
• #with_port(&) : Nil

  Yields opened instance of Port with already associated camera's PortInfo.

Constructor Detail

camera = GPhoto2::Camera.first

begin
  # ...
ensure
  camera.close
end

model = "Nikon DSC D5100 (PTP mode)"
port = "usb:250,006"

camera = GPhoto2::Camera.open(model, port)

begin
  # ...
ensure
  camera.close
end

Class Method Detail

cameras = GPhoto2::Camera.all # => [#<GPhoto2::Camera>, #<GPhoto2::Camera>, ...]

GPhoto2::Camera.first do |camera|
  # ...
end

GPhoto2::Camera.open(model, port) do |camera|
  # ...
end

# Find the cameras whose model names contain Nikon.
cameras = GPhoto2::Camera.where(model: /nikon/i)

# Select a camera by its port.
camera = GPhoto2::Camera.where(port: "usb:250,004").first

Instance Method Detail

# Find the cameras whose model names contain Nikon.
cameras = GPhoto2::Camera.where(model: /nikon/i)

# Pass a block, which will automatically close the camera.
cameras.first.autorelease do |camera|
  # ...
end

camera.can? :capture_image # => true

camera.with_port do |port|
  camera.exit
  port.reset
end