org.eclipse.swt.dnd

Class TransferData

java.lang.Object

org.eclipse.swt.dnd.TransferData

public class TransferData
extends java.lang.Object

The TransferData class is a platform specific data structure for describing the type and the contents of data being converted by a transfer agent.

As an application writer, you do not need to know the specifics of TransferData. TransferData instances are passed to a subclass of Transfer and the Transfer object manages the platform specific issues. You can ask a Transfer subclass if it can handle this data by calling Transfer.isSupportedType(transferData).

You should only need to become familiar with the fields in this class if you are implementing a Transfer subclass and you are unable to subclass the ByteArrayTransfer class.

See Also:

Sample code and further information

Structure Diagram

Field Summary

Fields

Modifier and Type	Field and Description
FORMATETC	formatetc The formatetc structure is a generalized data transfer format, enhanced to encompass a target device, the aspect, or view of the data, and a storage medium.
int	pIDataObject The pIDataObject is the address of an IDataObject OLE Interface which provides access to the data associated with the transfer.
int	result The result field contains the result of converting a java data type into a platform specific value.
STGMEDIUM	stgmedium The stgmedium structure is a generalized global memory handle used for data transfer operations.
int	type The type is a unique identifier of a system format or user defined format.

Constructor Summary

Constructors

Constructor and Description
TransferData()

Method Summary

Methods

Modifier and Type	Method and Description
(package private) static boolean	sameType(TransferData data1, TransferData data2)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

type

public int type

The type is a unique identifier of a system format or user defined format. (Warning: This field is platform dependent)

IMPORTANT: This field is not part of the SWT public API. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms and should never be accessed from application code.

formatetc

public FORMATETC formatetc

The formatetc structure is a generalized data transfer format, enhanced to encompass a target device, the aspect, or view of the data, and a storage medium. (Warning: This field is platform dependent)

IMPORTANT: This field is not part of the SWT public API. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms and should never be accessed from application code.

stgmedium

public STGMEDIUM stgmedium

The stgmedium structure is a generalized global memory handle used for data transfer operations. (Warning: This field is platform dependent)

IMPORTANT: This field is not part of the SWT public API. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms and should never be accessed from application code.

result

public int result

The result field contains the result of converting a java data type into a platform specific value. (Warning: This field is platform dependent)

IMPORTANT: This field is not part of the SWT public API. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms and should never be accessed from application code.

The value of result is 1 if the conversion was successful. The value of result is 0 if the conversion failed.

pIDataObject

public int pIDataObject

The pIDataObject is the address of an IDataObject OLE Interface which provides access to the data associated with the transfer. (Warning: This field is platform dependent)

IMPORTANT: This field is not part of the SWT public API. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms and should never be accessed from application code.

Constructor Detail

TransferData

public TransferData()

Method Detail

sameType

static boolean sameType(TransferData data1,
               TransferData data2)