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UI_E_INVALID_DIMENSION
UI_E_INVALID_DIMENSION belongs to Windows Animation Manager. It marks a transition or interpolator dimension is invalid or inconsistent with its target. The useful starting point is the exact API, object and state transition that returned 0x802A010B, because a shell or application message can hide that boundary.
Where this result is raised
Windows Animation is a stateful COM subsystem., animation variables, transitions and storyboards are created under a manager, scheduled against a monotonic animation time, updated before drawing, and eventually sealed or released. During a this result investigation, a visible glitch can therefore be downstream of a lifecycle, ownership, timeline, callback, or numeric contract failure.
When it is returned, multidimensional animation requires matching vector sizes across variables, primitives, and callbacks. During a this result investigation, a scalar-versus-vector mismatch can survive generic parameter validation and fail only when the interpolator is assembled.
The first owner to inspect is the animation manager, storyboard, transition, timer, or callback that returned the HRESULT.
Evidence worth collecting
- Expected and supplied dimensions. for it, this separates caller input from environment and service state within the Windows Animation Manager boundary.
- Variable or interpolator identity. for it, this creates a stable comparison across retries or another machine within the Windows Animation Manager boundary.
- Array lengths and strides. for it, this pins the event to an object or resource generation within the Windows Animation Manager boundary.
- Callback output dimension. for it, this places the event on the lifecycle or transaction timeline within the Windows Animation Manager boundary.
A controlled diagnostic sequence
During a this result investigation, reduce the case while preserving the condition described by the HRESULT.
- First: Log dimensions before construction.
- Next: Test a one-dimensional control.
- Then: Validate all arrays against the declared dimension.
- Finally: Keep dimension fixed while varying values.
How to interpret comparison tests
| Control | Interpretation | Hold constant |
|---|---|---|
| Same input, fresh object or connection | If the result disappears, retained lifecycle or ownership state is implicated. | While diagnosing this result, keep the original data, account, device, or timeline parameters unchanged. |
| Same object, reduced operation | If the result follows one specific transition, statement, file, or ceremony step, the failure is localized. | While diagnosing it, remove only unrelated work and keep the first failing boundary visible. |
| Same operation, controlled environment | If the result follows one machine, account, volume, network, or device, environment matters. | While diagnosing it, keep versions and identity explicit rather than comparing only the final message. |
What this code does not justify
UI_E_INVALID_OUTPUT concerns callback values generally; INVALID_DIMENSION identifies shape mismatch.
Do not truncate or pad arrays silently unless the API contract defines that conversion.
Verification after correction
Treat it as corrected only when declared, allocated, and returned dimensions agree for every operation and mismatch tests fail early; retain the original negative case so fallback cannot be mistaken for repair.
Technical references
The references below define the API family or storage/protocol behavior used to interpret it.
- Microsoft: Windows Animation error codes
- Microsoft: IUIAnimationManager interface
- Microsoft: IUIAnimationTransition interface
- Microsoft: Windows Animation overview
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