C Specification

The xrRequestDisplayRefreshRateFB function is defined as:

// Provided by XR_FB_display_refresh_rate
XrResult xrRequestDisplayRefreshRateFB(
    XrSession                                   session,
    float                                       displayRefreshRate);

Parameters

Parameter Descriptions

Description

xrRequestDisplayRefreshRateFB provides a mechanism for an application to request the system to dynamically change the display refresh rate to the application preferred value. The runtime must return XR_ERROR_DISPLAY_REFRESH_RATE_UNSUPPORTED_FB if displayRefreshRate is not either 0.0f or one of the values enumerated by xrEnumerateDisplayRefreshRatesFB. A display refresh rate of 0.0f indicates the application has no preference.

Note that this is only a request and does not guarantee the system will switch to the requested display refresh rate.

Valid Usage (Implicit)
Return Codes
On success, this command returns

  • XR_SUCCESS

  • XR_SESSION_LOSS_PENDING

On failure, this command returns

  • XR_ERROR_FUNCTION_UNSUPPORTED

  • XR_ERROR_VALIDATION_FAILURE

  • XR_ERROR_RUNTIME_FAILURE

  • XR_ERROR_HANDLE_INVALID

  • XR_ERROR_INSTANCE_LOST

  • XR_ERROR_SESSION_LOST

  • XR_ERROR_FEATURE_UNSUPPORTED

  • XR_ERROR_DISPLAY_REFRESH_RATE_UNSUPPORTED_FB

See Also

XR_FB_display_refresh_rate, XrSession, xrEnumerateDisplayRefreshRatesFB, xrGetDisplayRefreshRateFB

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 2014-2024, The Khronos Group Inc.

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