JOBOBJECT_BASIC_UI_RESTRICTIONS structure

Contains basic user-interface restrictions for a job object.

Syntax

typedef struct _JOBOBJECT_BASIC_UI_RESTRICTIONS {
  DWORD UIRestrictionsClass;
} JOBOBJECT_BASIC_UI_RESTRICTIONS, *PJOBOBJECT_BASIC_UI_RESTRICTIONS;

Members

UIRestrictionsClass

The restriction class for the user interface. This member can be one or more of the following values.

Value	Meaning
JOB_OBJECT_UILIMIT_DESKTOP 0x00000040	Prevents processes associated with the job from creating desktops and switching desktops using the CreateDesktop and SwitchDesktop functions.
JOB_OBJECT_UILIMIT_DISPLAYSETTINGS 0x00000010	Prevents processes associated with the job from calling the ChangeDisplaySettings function.
JOB_OBJECT_UILIMIT_EXITWINDOWS 0x00000080	Prevents processes associated with the job from calling the ExitWindows or ExitWindowsEx function.
JOB_OBJECT_UILIMIT_GLOBALATOMS 0x00000020	Prevents processes associated with the job from accessing global atoms. When this flag is used, each job has its own atom table.
JOB_OBJECT_UILIMIT_HANDLES 0x00000001	Prevents processes associated with the job from using USER handles owned by processes not associated with the same job.
JOB_OBJECT_UILIMIT_READCLIPBOARD 0x00000002	Prevents processes associated with the job from reading data from the clipboard.
JOB_OBJECT_UILIMIT_SYSTEMPARAMETERS 0x00000008	Prevents processes associated with the job from changing system parameters by using the SystemParametersInfo function.
JOB_OBJECT_UILIMIT_WRITECLIPBOARD 0x00000004	Prevents processes associated with the job from writing data to the clipboard.

 

Remarks

If you specify the JOB_OBJECT_UILIMIT_HANDLES flag, when a process associated with the job broadcasts messages, they are only sent to top-level windows owned by processes associated with the same job. In addition, hooks can be installed only on threads belonging to processes associated with the job.

To grant access to a User handle to a job that has a user-interface restriction, use the UserHandleGrantAccess function.

Requirements

See also

ExitWindows

ExitWindowsEx

QueryInformationJobObject

SetInformationJobObject

SystemParametersInfo

UserHandleGrantAccess