VideoCaptureOpen Method (Int32, VideoCaptureAPIs)

Opens a camera for video capturing

Namespace: OpenCvSharp
Assembly: OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0

Syntax

public bool Open(
	int index,
	VideoCaptureAPIs apiPreference = VideoCaptureAPIs.ANY
)

Public Function Open ( 
	index As Integer,
	Optional apiPreference As VideoCaptureAPIs = VideoCaptureAPIs.ANY
) As Boolean

public:
bool Open(
	int index, 
	VideoCaptureAPIs apiPreference = VideoCaptureAPIs::ANY
)

member Open : 
        index : int * 
        ?apiPreference : VideoCaptureAPIs 
(* Defaults:
        let _apiPreference = defaultArg apiPreference VideoCaptureAPIs.ANY
*)
-> bool

Parameters

index: Type: SystemInt32
id of the video capturing device to open. To open default camera using default backend just pass 0. (to backward compatibility usage of camera_id + domain_offset (CAP_*) is valid when apiPreference is CAP_ANY)
apiPreference (Optional): Type: OpenCvSharpVideoCaptureAPIs
preferred Capture API backends to use. Can be used to enforce a specific reader implementation if multiple are available: e.g. cv::CAP_DSHOW or cv::CAP_MSMF or cv::CAP_V4L.

Return Value

Type: Boolean
`true` if the file has been successfully opened

Reference

VideoCapture Class

Open Overload

OpenCvSharp Namespace

VideoCaptureAddLanguageSpecificTextSet("LSTD70DFC_0?cpp=::|nu=.");Open Method (Int32, VideoCaptureAPIs)

Parameters

Return Value

Reference

VideoCaptureOpen Method (Int32, VideoCaptureAPIs)