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VideoListParameter (Function) In french: VidéoListeParamètre Lists the values supported by the device camera for a given parameter. Notes: - To modify or find out the current value of a parameter for the device camera, use VideoParameter.
- VideoListParameter can be used in the Android emulator but not in the simulator.
 Versions 21 and later New in version 21
// Use the maximum resolution to take a photo
sListResolution is string
sListResolution = VideoListParameter(vipPhotoResolution)
IF ErrorOccurred = False THEN
VideoParameter(vipPhotoResolution, ExtractString(sListResolution, lastRank, CR))
ELSE
Error("Error while retrieving the resolutions supported by the camera.")
END
Syntax
<Result> = VideoListParameter(<Parameter>)
<Result>: Character string - List of values supported by the camera for the specified <Parameter>. This list has the following format:
<Value 1>+ CR + <Value 2> + CR + ... + <Value N>
- Empty string ("") if the parameter is not supported by the camera or if an error occurred while retrieving the parameters.
The ErrorOccurred variable is set to True if an error occurred. To find out the error details, use ErrorInfo.
<Parameter>: Character String constant or character string Parameter for which the supported values must be retrieved. This parameter can correspond to: - one of the preset constants. These constants correspond to the most common parameters.
- a character string (between quotes) corresponding to the name of requested parameter.
Caution: the parameter name is sensitive to the case and to the accented characters. See the documentation about the Android SDK or about the device to find out the name of additional supported parameters. If the specified name does not correspond to a parameter supported by the camera, the function will return an empty string.
The available constants are as follows:
| | | vipBalance | Balance modes for the whites supported by the camera: automatic, daylight, cloudy, ...
| | vipCamera | Subscripts and types of the cameras available on the device. The list has the following format:
where:- <Subscript> is an integer included between 1 and the number of cameras found on the device,
- <Type> is one of the following constants:
- vipCameraBack: Back camera opposite to the screen.
- vipCameraFront: Front camera facing the screen.
| | vipEffect | Color effects: black and white, poster, sepia, ...
| | vipFlash | Flash modes supported by the camera: automatic, without, anti red eyes, ... | | vipFocus | Focus modes supported by the camera: automatic, macro, fixed, ...
| | vipISO | ISO sensitivities supported by the camera: automatic, 100, 200, 400, ...
| | vipPhotoResolution | Resolutions supported by the camera for taking photos.
The list is sorted in ascending order, from the lowest resolution to the highest one.
The returned values have the following format:
Example:
640<TAB>480<CR>1024<TAB>760<CR>2048<TAB>1240
| | vipScene | Types of scenes supported by the camera: automatic, night, sports, ...
| | vipFlicker | Adjustments of flicker (anti-banding) supported by the camera: automatic, none, 50Hz, 60Hz, ...
| | vipZoom | Zoom values supported by the camera.
The returned values have the following format:- 100 (1x zoom = no zoom)
- 200 (2x zoom)
- 300 (3x zoom)
- 350 (3,5x zoom)
- ...
The first value is always 100 and the last one corresponds to the maximum zoom.
Example:
Note: The function will return an empty string ("") if the device camera does not support the zoom.
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Remarks Required permissions The call to this function modifies the permissions required by the application. Required permission: CAMERA. This permission allows the applications to access the camera. Component : wd250android.jar |
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