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+ZBarReaderController Class Reference
+====================================
+
+.. class:: ZBarReaderController
+
+   :Inherits from: :class:`UIImagePickerController`
+
+   This is the controller to use for scanning images selected by a
+   :class:`UIImagePickerController` either captured manually using the camera,
+   or selected from the Photo Library.  For more information, see
+   :doc:`picker`.
+
+   It can support automatic capture from the camera only if the library is
+   re-built to use private APIs (see :doc:`compat`).
+
+
+Properties
+----------
+
+   .. member:: ZBarImageScanner *scanner
+
+      Access to the image scanner for configuration. (read-only)
+
+   .. member:: id<ZBarReaderDelegate> readerDelegate
+
+      The delegate that will be notified when new barcode results are
+      available.
+
+   .. member:: BOOL showsZBarControls
+
+      Whether to display a default control set consisting of cancel, scan and
+      info buttons.  Disable these if you provide your own controls using the
+      :member:`cameraOverlayView`.  Enabling this automatically disables the
+      system controls :member:`showsCameraControls`.  (Default ``YES``).
+
+   .. member:: BOOL showsHelpOnFail
+
+      Whether to automatically display the integrated help viewer when an
+      image fails to decode.  Even if this is disabled, the integrated help
+      may still be presented manually using ``showHelpWithReason:``.
+      (Default ``YES``)
+
+   .. member:: ZBarReaderControllerCameraMode cameraMode
+
+      Scanning mode to use with the camera.  It is generally appropriate to
+      leave this at the default.
+
+   .. member:: BOOL tracksSymbols
+
+      Whether to display the tracking rectangle around detected barcodes.
+
+   .. member:: BOOL takesPicture
+
+      Whether to take a full picture (with ``takePicture``) when a barcode
+      is detected with ``ZBarReaderControllerCameraModeSampling``.  The
+      resulting image will be delayed from the actual decode.
+
+   .. member:: BOOL enableCache
+
+      This property is deprecated and should not be modified.
+
+   .. member:: CGRect scanCrop
+
+      Crop images before scanning.  The original image will be cropped to this
+      rectangle, which should be in normalized image coordinates, x-axis
+      major.  Defaults to the full image ``{{0, 0}, {1, 1}}``.
+
+   .. member:: NSInteger maxScanDimension
+
+      Scale image to scan.  After cropping, the image will be scaled if
+      necessary, such that neither of its dimensions exceed this value.
+      Defaults to 640.
+
+   .. note::
+
+      The remaining properties are inherited from
+      :class:`UIImagePickerController`.
+
+   .. member:: UIImagePickerControllerSourceType sourceType
+
+      Image source.  Use to select between the camera and photo library.
+
+   .. member:: BOOL showsCameraControls
+
+      Whether to display the system camera controls.  Overridden to ``NO``
+      when :member:`showsZBarControls` is ``YES``.
+
+   .. member:: UIView *cameraOverlayView
+
+      A custom view to display over the camera preview.  The tracking layer
+      and default controls will be added to this view if they are enabled.
+
+   .. member:: CGAffineTransform cameraViewTransform
+
+      A transform to apply to the camera preview.  Ignored by the reader.
+      Possibly useful for eg, a digital zoom effect.
+
+   .. member:: BOOL allowsEditing
+
+      Whether to enable the system image editing dialog after a picture is
+      taken.  Possibly useful to improve reader results in some cases using
+      manual intervention.
+
+
+Instance Methods
+----------------
+
+   .. _`showHelpWithReason:`:
+   .. describe:: - (void) showHelpWithReason:(NSString*)reason
+
+      Display the integrated help browser.  Use this with custom overlays if
+      you don't also want to create your own help view.  Should only be called
+      when the reader is displayed.  The ``reason`` argument will be passed to
+      the :func:`onZBarHelp` javascript function.
+
+      :reason: A string parameter passed to javascript.
+
+   .. _`scanImage:`:
+   .. describe:: - (id <NSFastEnumeration>) scanImage:(CGImageRef)image
+
+      Scan an image for barcodes.  This is a wrapper around
+      ``scanner.scanImage`` that applies scanCrop and maxScanDimension.  Some
+      additional result filtering is also performed.
+
+      :image: A :class:`CGImage` to scan.
+      :Returns: The result set containing :class:`ZBarSymbol` objects.
+
+
+Constants
+---------
+
+.. type:: ZBarReaderControllerCameraMode
+
+   The scanning mode to use with the camera.
+
+   ZBarReaderControllerCameraModeDefault
+      The standard mode provided by UIImagePickerController - the user
+      manually captures an image by tapping a control.  This is the default
+      unless private APIs are enabled.
+
+   ZBarReaderControllerCameraModeSampling
+      Automatically capture by taking screenshots with
+      :func:`UIGetScreenImage`.  Resolution is limited to the screen
+      resolution, so this mode is inappropriate for longer codes.  Only
+      available when private APIs are enabled, and becomes the default mode in
+      that case.
+
+   ZBarReaderControllerCameraModeSequence
+      Experimental mode that automatically scans by "rapidly" scanning
+      pictures captured with ``takePicture``.  Not recommended for serious
+      use.
+
+.. c:var:: NSString *ZBarReaderControllerResults
+
+   The info dictionary key used to return decode results to
+   ``imagePickerController:didFinishPickingMediaWithInfo:``