## C Specification

A two-dimensional floating-point extent is defined by the structure:

``````typedef struct XrExtent2Df {
float    width;
float    height;
} XrExtent2Df;``````

## Members

Member Descriptions
• `width` the floating-point width of the extent.

• `height` the floating-point height of the extent.

## Description

This structure is used for component values that may be fractional (floating-point). If used to represent physical distances, values must be in meters.

The `width` and `height` value must be non-negative.