com.jniwrapper.win32.dde

Interface DdeClientEventHandler

All Known Implementing Classes:

DdeClientEventAdapter

public interface DdeClientEventHandler

This is an interface for processing DDE client events.

Method Summary

Modifier and Type	Method and Description
void	asyncActionComplete(DdeItem item, byte[] data, long transactionID) Occurs when an asynchronous transaction is processed by the service.
void	disconnect(boolean sameApplication) Occurs on disconnect.
void	error(int errorCode) Fires when a critical error occurs.
DdeResponse	itemChanged(DdeItem item, byte[] data) Occurs when data of the item is changed.
void	serviceRegister(java.lang.String service, java.lang.String instanceName) Occurs when a service is registered.
void	serviceUnregister(java.lang.String service, java.lang.String instanceName) Occurs when a service is unregistered.

Method Detail

error

void error(int errorCode)

Fires when a critical error occurs.

Parameters:

errorCode - is the error code.

itemChanged

DdeResponse itemChanged(DdeItem item,
                        byte[] data)

Occurs when data of the item is changed.

Parameters:

item - specifies the item name and data format.

data - if on starting an advise loop the sendData argument was set to true, then the data contains a new value of the item data; otherwise, this argument is null.

Returns:

the result of event processing.

See Also:

DdeItem, DdeResponse

asyncActionComplete

void asyncActionComplete(DdeItem item,
                         byte[] data,
                         long transactionID)

Occurs when an asynchronous transaction is processed by the service.

Parameters:

item - specifies the item name and data format.

data - if the transaction manipulates data, then the data contains the value of the item. If the transaction failed, the data is null.

transactionID - is an asyncronous transaction identifier.

disconnect

void disconnect(boolean sameApplication)

Occurs on disconnect.

Parameters:

sameApplication - specifies if the client and the service are the same application.

serviceRegister

void serviceRegister(java.lang.String service,
                     java.lang.String instanceName)

Occurs when a service is registered.

Parameters:

service - is the basic name of the service.

instanceName - is an instance-specific service name.

serviceUnregister

void serviceUnregister(java.lang.String service,
                       java.lang.String instanceName)

Occurs when a service is unregistered.

Parameters:

service - is the basic name of the service.

instanceName - is an instance-specific service name.