C Specification

The XrSystemQrCodeTrackingPropertiesANDROID structure is defined as:

// Provided by XR_ANDROID_trackables_qr_code
typedef struct XrSystemQrCodeTrackingPropertiesANDROID {
    XrStructureType    type;
    void*              next;
    XrBool32           supportsQrCodeTracking;
    XrBool32           supportsQrCodeSizeEstimation;
    uint16_t           maxQrCodeCount;
} XrSystemQrCodeTrackingPropertiesANDROID;

Members

Member Descriptions

  • type is the XrStructureType of this structure.

  • next is NULL or a pointer to the next structure in a structure chain. No such structures are defined in core OpenXR or this extension.

  • supportsQrCodeTracking is an XrBool32 indicating if current system provides QR code tracking capability.

  • supportsQrCodeSizeEstimation is an XrBool32 indicating if current system provides QR code size estimation.

  • maxQrCodeCount is the total maximum number of QR codes that can be tracked at the same time.

Description

An application can inspect whether the system is capable of QR code tracking by extending the XrSystemProperties with XrSystemQrCodeTrackingPropertiesANDROID structure when calling xrGetSystemProperties. The runtime must return XR_ERROR_FEATURE_UNSUPPORTED for QR code tracker creation if and only if supportsQrCodeTracking is XR_FALSE.

If a runtime supports QR code tracking, maxQrCodeCount must be at least 1. If a runtime does not support QR code tracking, maxQrCodeCount must be 0.

Valid Usage (Implicit)

See Also

XR_ANDROID_trackables_qr_code, XrBool32, XrStructureType

Document Notes

For more information, see the OpenXR Specification

This page is extracted from the OpenXR Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2026 The Khronos Group Inc.

This work is licensed under a Creative Commons Attribution 4.0 International License.