camera_get_supported_manual_iso_values()

Retrieve the supported manual ISO values.

Synopsis:

#include <camera/camera_api.h>
 
camera_error_t
camera_get_supported_manual_iso_values(camera_handle_t handle,                 
                                       unsigned numasked,                 
                                       unsigned *numsupported,                 
                                       unsigned *isovalues,                 
                                       bool *maxmin)

Since:

BlackBerry 10.2.0

Arguments:

handle

The handle returned by a call to the camera_open() function.

numasked

The requested number of manual ISO values to return in the isovalues array. You can specify a value of 0 to determine the number of supported manual ISO values.

numsupported

A pointer to an integer that will be updated with the number of supported manual ISO values.

isovalues

A pointer to an unsigned @ int array that will be updated with the manual ISO values that are supported. Ensure that you allocate the array with at least numasked elements. If the maxmin argument returns true, then the first value returned in the isovalues array is the maximum supported manual ISO value, and the second value that is returned is the minimum supported manual ISO value.

maxmin

A pointer to a bool value which will be set to true if the values returned should be interpreted as a maximum and a minimum value, or set to false if the values describe only the discrete manual ISO values supported.

Library:

libcamapi (For the qcc command, use the -l camapi option to link against this library)

Description:

Use this function to retrieve the set of supported manual ISO values for the camera.

Ensure that the isovalues argument points to an array which has at least numasked elements allocated. To determine an appropriate size for this array, you can invoke this function in presizing mode by setting the numasked argument to 0 or the isovalues argument to NULL. When the function is invoked in this presizing mode, the maximum array size required is returned in the numsupported argument. You can then allocate an array of the appropriate size and invoke the function again with the numasked argument set to the value returned previously in the numsupported argument.

The values that you retrieve using this function can be set using the camera_set_manual_iso() function.

If you are using CAMERA_VFMODE_DEFAULT, or if your application is running on a device which uses CAMERA_API_VERSION 2 or lower (BlackBerry 10.2.1 or older), the viewfinder must be running prior to calling this function. If you are using a different viewfinder mode, then this function may be queried before starting the viewfinder.

Returns:

CAMERA_EOK when the function successfully completes, otherwise another camera_error_t value that provides the reason that the call failed.

Last modified: 2014-06-24



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