[Bug 39210] Dream Aquarium (screensaver) fails to read monitor power state ('{4d36e96e-e325-11ce-bfc1-08002be10318}' monitor device class registry data missing)

WineHQ Bugzilla wine-bugs at winehq.org
Wed Nov 20 08:57:08 CST 2019


https://bugs.winehq.org/show_bug.cgi?id=39210

--- Comment #9 from Zhiyi Zhang <zzhang at codeweavers.com> ---
SPDRP_DEVICE_POWER_DATA property is not a value in the registry. I suspect
SetupDiGetDeviceRegistryPropertyW sends an IRP_MN_QUERY_CAPABILITIES request to
the PnP manager, eventually monitor.sys and convert data returned to a struct
CM_POWER_DATA. Same for some other SPDRP_* properties such as
SPDRP_PHYSICAL_DEVICE_OBJECT_NAME.

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