com.sun.jna.platform.win32

Class Guid.REFIID

java.lang.Object

com.sun.jna.PointerType

com.sun.jna.platform.win32.Guid.REFIID

All Implemented Interfaces:

NativeMapped

Enclosing interface:

Guid

public static class Guid.REFIID
extends PointerType

REFIID is a pointer to an IID.

This type needs to be seperate from IID, as the REFIID can be passed in from external code, that does not allow writes to memory.

With the normal JNA behaviour a structure, that crosses the native<-%gt;Java border will be autowritten, which causes a fault when written. Observed was this behaviour in COM-Callbacks, which get the REFIID passed into Invoke-method.

So a IID can't be used directly, although the typedef of REFIID (from MSDN):

typedef IID* REFIID;

and the jna behaviour is described as:

"When a function requires a pointer to a struct, a Java Structure should be used."

Constructor Summary

Constructors

Constructor and Description
REFIID() Instantiates a new refiid.
REFIID(Guid.IID guid)
REFIID(Pointer memory) Instantiates a new refiid.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Instances of PointerType with identical pointers compare equal by default.
Guid.IID	getValue()
int	hashCode() The hash code for a PointerType is the same as that for its pointer.
void	setValue(Guid.IID value)

Methods inherited from class com.sun.jna.PointerType

fromNative, getPointer, nativeType, setPointer, toNative, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

REFIID

public REFIID()

Instantiates a new refiid.

REFIID

public REFIID(Pointer memory)

Instantiates a new refiid.

Parameters:

memory - the memory

REFIID

public REFIID(Guid.IID guid)

Method Detail

setValue

public void setValue(Guid.IID value)

getValue

public Guid.IID getValue()

equals

public boolean equals(java.lang.Object o)

Description copied from class: PointerType

Instances of PointerType with identical pointers compare equal by default.

Overrides:

equals in class PointerType

hashCode

public int hashCode()

Description copied from class: PointerType

The hash code for a PointerType is the same as that for its pointer.

Overrides:

hashCode in class PointerType