1# Window Subsystem Changelog
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3## cl.window.1 Error Code Returned by getTitleButtonRect Is Changed
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5**Access Level**
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7Public API
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9**Reason for Change**
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11The API implementation is inconsistent with the design. This API takes effect only on 2-in-1 devices.
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13**Change Impact**
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15This change is a non-compatible change.
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17Before the change: When a non-2-in-1 device calls **getTitleButtonRect**, error code 1300002 is returned.
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19After the change: When a non-2-in-1 device calls **getTitleButtonRect**, error code 801 is returned.
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21**Start API Level**
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2311
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25**Change Since**
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27OpenHarmony SDK 5.0.0.30
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29**Key API/Component Changes**
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31@ohos.window.d.ts
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33System capability: SystemCapability.Window.SessionManager
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35API: getTitleButtonRect
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37**Adaptation Guide**
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39Call this API on a 2-in-1 device. If it is called on a non-2-in-1 device, error code 801 is returned.
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