2.3 Shutdown Reasons
This dwReason type is declared as follows:
-
typedef ULONG dwReason;
Some opnums allow the transmission of a shutdown reason. This reason is composed of a major reason code, an optional minor reason code, and optional flags, which MUST be a bitwise OR of the flags.
Major reason codes are described in the following table.
|
Constant/value |
Description |
|---|---|
|
SHTDN_REASON_MAJOR_APPLICATION 0x00040000 |
Application issue |
|
SHTDN_REASON_MAJOR_HARDWARE 0x00010000 |
Hardware issue |
|
SHTDN_REASON_MAJOR_LEGACY_API 0x00070000 |
The InitiateSystemShutdown function was used instead of InitiateSystemShutdownEx |
|
SHTDN_REASON_MAJOR_OPERATINGSYSTEM 0x00020000 |
Operating system issue |
|
SHTDN_REASON_MAJOR_OTHER 0x00000000 |
Other issue |
|
SHTDN_REASON_MAJOR_POWER 0x00060000 |
Power failure |
|
SHTDN_REASON_MAJOR_SOFTWARE 0x00030000 |
Software issue |
|
SHTDN_REASON_MAJOR_SYSTEM 0x00050000 |
System failure |
Any minor reason code MAY be used with any major reason code. Minor reason codes are described in the following table.
|
Constant/value |
Description |
|---|---|
|
SHTDN_REASON_MINOR_BLUESCREEN 0x0000000F |
Blue screen crash event |
|
SHTDN_REASON_MINOR_CORDUNPLUGGED 0x0000000b |
Unplugged |
|
SHTDN_REASON_MINOR_DISK 0x00000007 |
Disk |
|
SHTDN_REASON_MINOR_ENVIRONMENT 0x0000000c |
Environment |
|
SHTDN_REASON_MINOR_HARDWARE_DRIVER 0x0000000d |
Driver |
|
SHTDN_REASON_MINOR_HOTFIX 0x00000011 |
Hot fix |
|
SHTDN_REASON_MINOR_HOTFIX_UNINSTALL 0x00000017 |
Hot fix uninstallation |
|
SHTDN_REASON_MINOR_HUNG 0x00000005 |
Unresponsive |
|
SHTDN_REASON_MINOR_INSTALLATION 0x00000002 |
Installation |
|
SHTDN_REASON_MINOR_MAINTENANCE 0x00000001 |
Maintenance |
|
SHTDN_REASON_MINOR_MMC 0x00000019 |
Management tool<1> |
|
SHTDN_REASON_MINOR_NETWORK_CONNECTIVITY 0x00000014 |
Network connectivity |
|
SHTDN_REASON_MINOR_NETWORKCARD 0x00000009 |
Network card |
|
SHTDN_REASON_MINOR_OTHER 0x00000000 |
Other issue |
|
SHTDN_REASON_MINOR_OTHERDRIVER 0x0000000e |
Other driver event |
|
SHTDN_REASON_MINOR_POWER_SUPPLY 0x0000000a |
Power supply |
|
SHTDN_REASON_MINOR_PROCESSOR 0x00000008 |
Processor |
|
SHTDN_REASON_MINOR_RECONFIG 0x00000004 |
Reconfigure |
|
SHTDN_REASON_MINOR_SECURITY 0x00000013 |
Security issue |
|
SHTDN_REASON_MINOR_SECURITYFIX 0x00000012 |
Security patch |
|
SHTDN_REASON_MINOR_SECURITYFIX_UNINSTALL 0x00000018 |
Security patch uninstallation |
|
SHTDN_REASON_MINOR_SERVICEPACK 0x00000010 |
Service pack |
|
SHTDN_REASON_MINOR_SERVICEPACK_UNINSTALL 0x00000016 |
Service pack uninstallation |
|
SHTDN_REASON_MINOR_TERMSRV 0x00000020 |
Terminal services |
|
SHTDN_REASON_MINOR_UNSTABLE 0x00000006 |
Unstable |
|
SHTDN_REASON_MINOR_UPGRADE 0x00000003 |
Installation of software on the system required reboot |
|
SHTDN_REASON_MINOR_WMI 0x00000015 |
WMI issue |
The following optional flags provide additional information about the event.
|
Constant/Value |
Description |
|---|---|
|
SHTDN_REASON_FLAG_USER_DEFINED 0x40000000 |
The reason code is defined by the user.<2> If this flag is not present, the reason code is defined by the system. |
|
SHTDN_REASON_FLAG_PLANNED 0x80000000 |
The shutdown was planned. If this flag is not present, the shutdown was unplanned. |