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What does HRESULT 0x80040221 (VFW_E_NO_DISPLAY_PALETTE) mean?

 
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VFW_E_NO_PALETTE_AVAILABLE TPC_E_INVALID_STROKE

VFW_E_NO_DISPLAY_PALETTE

Meaning

Windows documents VFW_E_NO_DISPLAY_PALETTE as “Display does not use a palette”. In practical terms, it is returned when a palette-specific DirectShow operation is requested on a display mode that does not use a hardware palette.

Where the failure belongs

This result belongs to DirectShow filter-graph processing. The relevant condition is that a palette-specific DirectShow operation is requested on a display mode that does not use a hardware palette.

Likely causes

  • Possible cause 1: legacy code assumes an indexed-color desktop.
  • Possible cause 2: the display switched to a true-color mode.
  • Possible cause 3: renderer selection no longer exposes palette management.

Evidence to collect

  • Capture 1: current display format and color depth.
  • Capture 2: renderer and surface capabilities.
  • Capture 3: the exact palette method requested.

Diagnostic sequence

  1. Confirm that the observed path matches this condition: a palette-specific DirectShow operation is requested on a display mode that does not use a hardware palette.

Correct handling and retry

  • Corrective action 1: skip palette operations on true-color displays.
  • Corrective action 2: use renderer-supported color conversion.
  • Corrective action 3: refresh display capabilities after mode or adapter changes.

Retry guidance. Retry only after choosing a compatible display mode or presentation path; no amount of palette data changes a non-palette display.

Practical scenario

A legacy player runs unchanged on a true-color desktop and calls palette-management methods; capability gating prevents it.

Difference from nearby HRESULTs

VFW_E_NO_PALETTE_AVAILABLE concerns missing palette data for a format, whereas it concerns the display mode itself.

Official Microsoft references


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