CameraCapture (Function)

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Save in image format
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CameraCapture (Function)

In french: CameraCapture

Saves the video currently transmitted by a "camera" as an image or a video sequence.

The formats in which the video is saved are:

an image in BMP format or a video sequence in AVI format.

Remarks:

This function is equivalent to VideoCapture.

Example

// Sauvegarde de la vidéo retransmise dans le champ Caméra "CAM_Cuisine"
// sous forme d'une AVI ("C:\Temp\MaVideo.AVI") de 1 minute
ResSauvegarde = CaméraCapture(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> [, <Number of images per second> [, <Display during capture>]]]])

<Result>: Boolean

True if the video was successfully saved,
False otherwise. To get the details of the error, use ErrorInfo.

<Camera control>: Control name

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

<Name of created file>: Character string (with quotes)

Name and full (or relative) path of file to create.
If an image is saved, a BMP file is created. If a video sequence is saved, an AVI file is created.
Caution: No UNC path can be used.

<Type of capture>: Optional integer constant

Type of capture:
viPictureCapture
Capture an image in the format of a BMP file.

viVideoCapture
(Default value)
Capture a video sequence in the format of an AVI file.

<Capture duration>: Optional integer or optional duration

Duration of capture (in seconds). If this parameter is set to 0 or if it is not specified, the capture will stop:
during the call to VideoStop.
when the specified disk is full.
Remark: This parameter can correspond to:
an integer corresponding to the number of seconds,
a Duration variable,
Versions 23 and later
the duration in a readable format ('1 s' for example).
New in version 23
the duration in a readable format ('1 s' for example).
the duration in a readable format ('1 s' for example).

<Number of images per second>: Optional integer

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

<Display during capture>: Optional boolean

True (by default) if the video currently transmitted must be viewed in the specified Camera control,
False otherwise.

Remarks

Save in image format

Only the Image displayed at the time the CameraCapture function is executed is saved in BMP format. To save this image, you can also use:

dSaveImageBMP: the image will be saved in BMP format.
dSaveImageGIF: the image will be saved in GIF format.
dSaveImageJPEG: the image will be saved in JPEG format.

Use conditions:

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

Component: wd260obj.dll