CameraCapture (Function)

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Saving a photo
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CameraCapture (Function)

In french: CameraCapture

Captures the images received from the camera:

as an image: take a photo.
as a video: record a video.

Depending on the platform, the following photo and video formats are used:

BMP images or AVI videos.

Remarks:

This function is equivalent to VideoCapture.

Example

// Enregistre la vidéo retransmise dans le champ Caméra "CAM_Cuisine"
// sous forme d'une AVI ("C:\Temp\MaVideo.AVI") de 1 minute
ResSauvegarde = CameraCapture(CAM_Cuisine, "C:\Temp\MaVideo.AVI", viVideoCapture, 60)
IF ResSauvegarde = True THEN
	Info("Vidéo correctement sauvegardée")
ELSE
	Error(ErrorInfo())
END

Syntax

<Result> = CameraCapture(<Camera control> , <Name of created file> [, <Type of capture> [, <Capture duration> [, <Images per second> [, <Preview stream>]]]])

<Result>: Boolean

True if the video has been saved correctly,
False otherwise. To get more details on the error, use ErrorInfo.

<Camera control>: Control name

Name of the Camera control to be used. There is no need to display the video in a Camera control to save it.

<Name of created file>: Character string

Name and full (or relative) path of the file to create.
When a photo is taken, a BMP file is created. When a video is recorded, an AVI file is created.
Warning It is not possible to use a UNC path.

<Type of capture>: Optional integer constant

Type of capture:
viPictureCapture
Captures an image and saves it as a BMP file.

viVideoCapture
(Default value)
Captures a video and saves it as an AVI file.

<Capture duration>: Optional integer or optional duration

Length of the video recording (in seconds). If this parameter is set to 0 or is not specified, the video recording will stop:
when VideoStop is called.
when there is no more space on the disk.
Note: This parameter can correspond to:
an integer corresponding to the number of seconds,
a Duration variable,
the duration in a readable format ('1 s' for example).

<Images per second>: Optional integer

Number of frames per second (15 by default). This parameter is taken into account only if <Type of capture> is equal to viVideoCapture.

<Preview stream>: Optional boolean

True (by default) if the video stream must be displayed in the specified Camera control,
False otherwise.

Remarks

Saving a photo

Only the image displayed when CameraCapture is executed is saved as a BMP image. To save this image, you can also use:

function dSaveImageBMP: the photo will be saved in BMP format.
the dSaveImageGIF function: the photo will be saved in Gif format.
the dSaveImageJPEG function: the photo will be saved in Jpeg format.

Use conditions:

To use this function, a "web camera" must be connected to the current computer.

Component: wd300obj.dll