Package com.sun.jna.platform.win32

Class WinBase.SYSTEM_INFO

java.lang.Object

com.sun.jna.Structure

com.sun.jna.platform.win32.WinBase.SYSTEM_INFO

Enclosing interface:

WinBase

public static class WinBase.SYSTEM_INFO
extends Structure

Contains information about the current computer system. This includes the architecture and type of the processor, the number of processors in the system, the page size, and other such information.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	WinBase.SYSTEM_INFO.PI	Unnamed inner structure.
static class	WinBase.SYSTEM_INFO.UNION	Unnamed inner union.

Nested classes/interfaces inherited from class com.sun.jna.Structure

Structure.ByReference, Structure.ByValue, Structure.StructField

Field Summary

Fields

Modifier and Type	Field	Description
BaseTSD.DWORD_PTR	dwActiveProcessorMask	Mask representing the set of processors configured into the system.
WinDef.DWORD	dwAllocationGranularity	Granularity for the starting address at which virtual memory can be allocated.
WinDef.DWORD	dwNumberOfProcessors	Number of processors in the system.
WinDef.DWORD	dwPageSize	Page size and the granularity of page protection and commitment.
WinDef.DWORD	dwProcessorType	An obsolete member that is retained for compatibility with Windows NT 3.5 and Windows Me/98/95.
Pointer	lpMaximumApplicationAddress	Pointer to the highest memory address accessible to applications and DLLs.
Pointer	lpMinimumApplicationAddress	Pointer to the lowest memory address accessible to applications and dynamic-link libraries (DLLs).
WinBase.SYSTEM_INFO.UNION	processorArchitecture	Processor architecture (unnamed union).
WinDef.WORD	wProcessorLevel	System's architecture-dependent processor level.
WinDef.WORD	wProcessorRevision	Architecture-dependent processor revision.

Fields inherited from class com.sun.jna.Structure

ALIGN_DEFAULT, ALIGN_GNUC, ALIGN_MSVC, ALIGN_NONE, CALCULATE_SIZE

Constructor Summary

Constructors

Constructor	Description
SYSTEM_INFO()

Method Summary

Modifier and Type	Method	Description
protected List<String>	getFieldOrder()	Return this Structure's field names in their proper order.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from class com.sun.jna.Structure

allocateMemory, allocateMemory, autoAllocate, autoRead, autoRead, autoWrite, autoWrite, cacheTypeInfo, calculateSize, clear, createFieldsOrder, createFieldsOrder, createFieldsOrder, createFieldsOrder, dataEquals, dataEquals, ensureAllocated, equals, fieldOffset, getAutoRead, getAutoWrite, getFieldList, getFields, getNativeAlignment, getNativeSize, getNativeSize, getPointer, getStringEncoding, getStructAlignment, hashCode, newInstance, newInstance, read, readField, readField, setAlignType, setAutoRead, setAutoSynch, setAutoWrite, setFieldOrder, setStringEncoding, size, sortFields, toArray, toArray, toString, toString, useMemory, useMemory, write, writeField, writeField, writeField

Field Detail

processorArchitecture

public WinBase.SYSTEM_INFO.UNION processorArchitecture

Processor architecture (unnamed union).

dwPageSize

public WinDef.DWORD dwPageSize

Page size and the granularity of page protection and commitment.

lpMinimumApplicationAddress

public Pointer lpMinimumApplicationAddress

Pointer to the lowest memory address accessible to applications and dynamic-link libraries (DLLs).

lpMaximumApplicationAddress

public Pointer lpMaximumApplicationAddress

Pointer to the highest memory address accessible to applications and DLLs.

dwActiveProcessorMask

public BaseTSD.DWORD_PTR dwActiveProcessorMask

Mask representing the set of processors configured into the system. Bit 0 is processor 0; bit 31 is processor 31.

dwNumberOfProcessors

public WinDef.DWORD dwNumberOfProcessors

Number of processors in the system.

dwProcessorType

public WinDef.DWORD dwProcessorType

An obsolete member that is retained for compatibility with Windows NT 3.5 and Windows Me/98/95. Use the wProcessorArchitecture, wProcessorLevel, and wProcessorRevision members to determine the type of processor. PROCESSOR_INTEL_386 PROCESSOR_INTEL_486 PROCESSOR_INTEL_PENTIUM

dwAllocationGranularity

public WinDef.DWORD dwAllocationGranularity

Granularity for the starting address at which virtual memory can be allocated.

wProcessorLevel

public WinDef.WORD wProcessorLevel

System's architecture-dependent processor level. It should be used only for display purposes. To determine the feature set of a processor, use the IsProcessorFeaturePresent function. If wProcessorArchitecture is PROCESSOR_ARCHITECTURE_INTEL, wProcessorLevel is defined by the CPU vendor. If wProcessorArchitecture is PROCESSOR_ARCHITECTURE_IA64, wProcessorLevel is set to 1.

wProcessorRevision

public WinDef.WORD wProcessorRevision

Architecture-dependent processor revision.

Constructor Detail

SYSTEM_INFO

public SYSTEM_INFO()

Method Detail

getFieldOrder

protected List<String> getFieldOrder()

Description copied from class: Structure

Return this Structure's field names in their proper order. For example,

 protected List getFieldOrder() {
     return Arrays.asList(new String[] { ... });
 }
 

IMPORTANT When deriving from an existing Structure subclass, ensure that you augment the list provided by the superclass, e.g.

 protected List getFieldOrder() {
     List fields = new ArrayList(super.getFieldOrder());
     fields.addAll(Arrays.asList(new String[] { ... }));
     return fields;
 }
 

Field order must be explicitly indicated, since the field order as returned by Class.getFields() is not guaranteed to be predictable.

Overrides:

getFieldOrder in class Structure

Returns:

ordered list of field names