What does HRESULT 0x88980084 (MILERR_DISPLAYFORMATNOTSUPPORTED) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The display format required by the Media Integration Layer is not supported by the device.

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MILERR_INTERNALERROR	MILERR_INVALIDCALL

MILERR_DISPLAYFORMATNOTSUPPORTED

MILERR_DISPLAYFORMATNOTSUPPORTED is a Windows Media Integration Layer (MIL) HRESULT. It indicates that the active graphics hardware or driver cannot render the display format selected by the operation.

What to check

Check the display format, pixel format, color depth, and hardware capabilities reported by the active adapter.
Try a supported format or software-rendering path when the application can degrade gracefully.
Update or reinstall the display driver if a normally supported format stopped working after a driver change.

Microsoft documentation about WPF hardware-accelerated rendering

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