What does HRESULT 0x00040320 (VFW_S_DVD_RENDER_STATUS) mean?

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Description:

DVD graph built with one or more streams not rendered

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VFW_S_DVD_NOT_ACCURATE	IDS_MON_DEFAULT_ERROR

VFW_S_DVD_RENDER_STATUS

DVD graph built with one or more streams not rendered

VFW_S_DVD_RENDER_STATUS is HRESULT 262944 (0x00040320) from Video for Windows. The documented description is “The operation succeeded but some streams were not rendered.” The high-order severity bit is clear, so this is a success result, but it carries more information than plain S_OK.

DVD graph construction succeeded sufficiently to return detailed render status, while some DVD streams or presentation paths were not rendered.

Evidence to preserve

Preserve AM_DVD_RENDERSTATUS fields.
Preserve failed stream flags.
Preserve volume, decoder, and overlay errors.
Preserve final graph topology.
Preserve selected audio and subpicture streams.

Where the result is encountered

This result can appear in DVD graph building; record the producing interface and method.
This result can appear in systems lacking a decoder or compatible renderer; record the producing interface and method.
It can appear in applications inspecting AM_DVD_RENDERSTATUS after partial construction; record the producing interface and method.

State to verify

The central question is whether the detailed structure is examined to identify failed streams and determine whether playback remains acceptable.

Diagnostic sequence

Capture the raw HRESULT 0x00040320 immediately after the returning method and record whether the caller used SUCCEEDED, FAILED, equality testing, or exception translation.

Difference from nearby HRESULT values

VFW_S_PARTIAL_RENDER is a general media result; it is paired with DVD-specific diagnostic details.

Correct handling, retry, and recovery

Read and report the detailed render-status structure; do not discard it in favor of the single HRESULT. Continue only when omitted streams are optional for the requested playback.

Practical validation scenario

A DVD graph renders video and main audio but cannot render a subpicture stream. The player reads AM_DVD_RENDERSTATUS, reports the missing subtitle capability, and allows playback under policy.

References

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