camera_get_vf_property()

Retrieve one or more properties of the viewfinder

Synopsis:

#include <camera/camera_api.h>
#define camera_get_vf_property(handle,
                               args...)

Arguments:

handle
The handle returned by a call to the camera_open() function.
args
A series of comma-delimited property-value pairs where each value must be a pointer to a variable of the expected type.

Library:

libcamapi

Description:

For the args argument, you can provide one or more property-value pairs using camera_imgprop_t for the property and int or double for the value. The function can use the following properties:
Note:

The compiler performs no type-checking. Therefore, the value you provide for each property must match the expected data type. Mismatches can cause undefined behavior and application crashes.

You can specify multiple property-value pairs by delimiting them with a comma as follows: 
camera_get_vf_property( camera_handle,
                        CAMERA_IMGPROP_WIDTH, &vf_width,
                        CAMERA_IMGPROP_HEIGHT, &vf_height,
                        CAMERA_IMGPROP_ROTATION, &vf_rotation,
                        CAMERA_IMGPROP_FRAMERATE, &framerate );

Returns:

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

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