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ERROR_GRAPHICS_DISPLAY_DEVICE_NOT_ATTACHED_TO_DESKTOP
What Windows rejected: graphics display device not attached to desktop
The useful interpretation of ERROR_GRAPHICS_DISPLAY_DEVICE_NOT_ATTACHED_TO_DESKTOP (0xC02625E2) starts at the gdi monitor boundary: the named display device exists but is detached from the current Windows desktop. In practical terms, inspect desktop attachment state of a GDI display device before changing application-wide graphics settings.
Build a useful diagnostic record
| Capture item | Why it matters |
|---|---|
| What to capture | DISPLAY_DEVICE flags, current DEVMODE position, session, active paths and recent display changes |
| Current graph state | GDI display-device enumeration, desktop attachment and physical-monitor mapping |
| Supporting trace | EnumDisplayDevices snapshot, DISPLAY_DEVICE flags, session ID, HMONITOR list and physical-monitor count |
| Object identity | desktop attachment state of a GDI display device |
| Rejected condition | the named display device exists but is detached from the current Windows desktop |
Separate state from capability
- Capture the failing state. Record DISPLAY_DEVICE flags, current DEVMODE position, session, active paths and recent display changes.
- Attach the display through supported configuration APIs and repeat with the same current name.
The comparison with ERROR_GRAPHICS_NO_DISPLAY_DEVICE_CORRESPONDS_TO_NAME is especially useful: ERROR_GRAPHICS_NO_DISPLAY_DEVICE_CORRESPONDS_TO_NAME means name resolution itself failed.
Verify the repaired path
Branch explicitly for detached devices instead of assuming every enumerated adapter has an active desktop surface.
- debug-layer, ETW or driver diagnostics no longer report the rejected desktop attachment state of a GDI display device contract during the same scenario.
Implementation notes
Technical references
- Microsoft: Multiple display monitors — background for the desktop attachment state of a GDI display device.
- Microsoft: Monitor configuration functions — background for the desktop attachment state of a GDI.
- Microsoft: EnumDisplayDevices
- Microsoft: Graphics error codes
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