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MILERR_COLORSPACE_NOT_SUPPORTED
MILERR_COLORSPACE_NOT_SUPPORTED is a Windows Media Integration Layer (MIL) HRESULT. It indicates that the active rendering path cannot process the selected bitmap color space.
Diagnostic discriminator: Render the same bitmap after converting it to sRGB or another known-supported profile. If that control succeeds, preserve the original ICC profile and adapter path; the failure is a color-space capability mismatch rather than generic device loss.
What to check for MILERR_COLORSPACE_NOT_SUPPORTED
- Check the bitmap format, ICC profile, color-space metadata, and device capabilities.
- Convert the image to a supported color space before creating the rendering resource.
- Test hardware and software rendering paths separately when support differs by adapter or driver.
Microsoft documentation about WPF hardware-accelerated rendering
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